/usr/lib/python3.7/test/test_os.py is in libpython3.7-testsuite 3.7.0~b3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 | # As a test suite for the os module, this is woefully inadequate, but this
# does add tests for a few functions which have been determined to be more
# portable than they had been thought to be.
import asynchat
import asyncore
import codecs
import contextlib
import decimal
import errno
import fractions
import getpass
import itertools
import locale
import mmap
import os
import pickle
import shutil
import signal
import socket
import stat
import subprocess
import sys
import sysconfig
import threading
import time
import unittest
import uuid
import warnings
from test import support
try:
import resource
except ImportError:
resource = None
try:
import fcntl
except ImportError:
fcntl = None
try:
import _winapi
except ImportError:
_winapi = None
try:
import grp
groups = [g.gr_gid for g in grp.getgrall() if getpass.getuser() in g.gr_mem]
if hasattr(os, 'getgid'):
process_gid = os.getgid()
if process_gid not in groups:
groups.append(process_gid)
except ImportError:
groups = []
try:
import pwd
all_users = [u.pw_uid for u in pwd.getpwall()]
except (ImportError, AttributeError):
all_users = []
try:
from _testcapi import INT_MAX, PY_SSIZE_T_MAX
except ImportError:
INT_MAX = PY_SSIZE_T_MAX = sys.maxsize
from test.support.script_helper import assert_python_ok
from test.support import unix_shell, FakePath
root_in_posix = False
if hasattr(os, 'geteuid'):
root_in_posix = (os.geteuid() == 0)
# Detect whether we're on a Linux system that uses the (now outdated
# and unmaintained) linuxthreads threading library. There's an issue
# when combining linuxthreads with a failed execv call: see
# http://bugs.python.org/issue4970.
if hasattr(sys, 'thread_info') and sys.thread_info.version:
USING_LINUXTHREADS = sys.thread_info.version.startswith("linuxthreads")
else:
USING_LINUXTHREADS = False
# Issue #14110: Some tests fail on FreeBSD if the user is in the wheel group.
HAVE_WHEEL_GROUP = sys.platform.startswith('freebsd') and os.getgid() == 0
def requires_os_func(name):
return unittest.skipUnless(hasattr(os, name), 'requires os.%s' % name)
def create_file(filename, content=b'content'):
with open(filename, "xb", 0) as fp:
fp.write(content)
# Tests creating TESTFN
class FileTests(unittest.TestCase):
def setUp(self):
if os.path.lexists(support.TESTFN):
os.unlink(support.TESTFN)
tearDown = setUp
def test_access(self):
f = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
os.close(f)
self.assertTrue(os.access(support.TESTFN, os.W_OK))
def test_closerange(self):
first = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
# We must allocate two consecutive file descriptors, otherwise
# it will mess up other file descriptors (perhaps even the three
# standard ones).
second = os.dup(first)
try:
retries = 0
while second != first + 1:
os.close(first)
retries += 1
if retries > 10:
# XXX test skipped
self.skipTest("couldn't allocate two consecutive fds")
first, second = second, os.dup(second)
finally:
os.close(second)
# close a fd that is open, and one that isn't
os.closerange(first, first + 2)
self.assertRaises(OSError, os.write, first, b"a")
@support.cpython_only
def test_rename(self):
path = support.TESTFN
old = sys.getrefcount(path)
self.assertRaises(TypeError, os.rename, path, 0)
new = sys.getrefcount(path)
self.assertEqual(old, new)
def test_read(self):
with open(support.TESTFN, "w+b") as fobj:
fobj.write(b"spam")
fobj.flush()
fd = fobj.fileno()
os.lseek(fd, 0, 0)
s = os.read(fd, 4)
self.assertEqual(type(s), bytes)
self.assertEqual(s, b"spam")
@support.cpython_only
# Skip the test on 32-bit platforms: the number of bytes must fit in a
# Py_ssize_t type
@unittest.skipUnless(INT_MAX < PY_SSIZE_T_MAX,
"needs INT_MAX < PY_SSIZE_T_MAX")
@support.bigmemtest(size=INT_MAX + 10, memuse=1, dry_run=False)
def test_large_read(self, size):
self.addCleanup(support.unlink, support.TESTFN)
create_file(support.TESTFN, b'test')
# Issue #21932: Make sure that os.read() does not raise an
# OverflowError for size larger than INT_MAX
with open(support.TESTFN, "rb") as fp:
data = os.read(fp.fileno(), size)
# The test does not try to read more than 2 GiB at once because the
# operating system is free to return less bytes than requested.
self.assertEqual(data, b'test')
def test_write(self):
# os.write() accepts bytes- and buffer-like objects but not strings
fd = os.open(support.TESTFN, os.O_CREAT | os.O_WRONLY)
self.assertRaises(TypeError, os.write, fd, "beans")
os.write(fd, b"bacon\n")
os.write(fd, bytearray(b"eggs\n"))
os.write(fd, memoryview(b"spam\n"))
os.close(fd)
with open(support.TESTFN, "rb") as fobj:
self.assertEqual(fobj.read().splitlines(),
[b"bacon", b"eggs", b"spam"])
def write_windows_console(self, *args):
retcode = subprocess.call(args,
# use a new console to not flood the test output
creationflags=subprocess.CREATE_NEW_CONSOLE,
# use a shell to hide the console window (SW_HIDE)
shell=True)
self.assertEqual(retcode, 0)
@unittest.skipUnless(sys.platform == 'win32',
'test specific to the Windows console')
def test_write_windows_console(self):
# Issue #11395: the Windows console returns an error (12: not enough
# space error) on writing into stdout if stdout mode is binary and the
# length is greater than 66,000 bytes (or less, depending on heap
# usage).
code = "print('x' * 100000)"
self.write_windows_console(sys.executable, "-c", code)
self.write_windows_console(sys.executable, "-u", "-c", code)
def fdopen_helper(self, *args):
fd = os.open(support.TESTFN, os.O_RDONLY)
f = os.fdopen(fd, *args)
f.close()
def test_fdopen(self):
fd = os.open(support.TESTFN, os.O_CREAT|os.O_RDWR)
os.close(fd)
self.fdopen_helper()
self.fdopen_helper('r')
self.fdopen_helper('r', 100)
def test_replace(self):
TESTFN2 = support.TESTFN + ".2"
self.addCleanup(support.unlink, support.TESTFN)
self.addCleanup(support.unlink, TESTFN2)
create_file(support.TESTFN, b"1")
create_file(TESTFN2, b"2")
os.replace(support.TESTFN, TESTFN2)
self.assertRaises(FileNotFoundError, os.stat, support.TESTFN)
with open(TESTFN2, 'r') as f:
self.assertEqual(f.read(), "1")
def test_open_keywords(self):
f = os.open(path=__file__, flags=os.O_RDONLY, mode=0o777,
dir_fd=None)
os.close(f)
def test_symlink_keywords(self):
symlink = support.get_attribute(os, "symlink")
try:
symlink(src='target', dst=support.TESTFN,
target_is_directory=False, dir_fd=None)
except (NotImplementedError, OSError):
pass # No OS support or unprivileged user
# Test attributes on return values from os.*stat* family.
class StatAttributeTests(unittest.TestCase):
def setUp(self):
self.fname = support.TESTFN
self.addCleanup(support.unlink, self.fname)
create_file(self.fname, b"ABC")
@unittest.skipUnless(hasattr(os, 'stat'), 'test needs os.stat()')
def check_stat_attributes(self, fname):
result = os.stat(fname)
# Make sure direct access works
self.assertEqual(result[stat.ST_SIZE], 3)
self.assertEqual(result.st_size, 3)
# Make sure all the attributes are there
members = dir(result)
for name in dir(stat):
if name[:3] == 'ST_':
attr = name.lower()
if name.endswith("TIME"):
def trunc(x): return int(x)
else:
def trunc(x): return x
self.assertEqual(trunc(getattr(result, attr)),
result[getattr(stat, name)])
self.assertIn(attr, members)
# Make sure that the st_?time and st_?time_ns fields roughly agree
# (they should always agree up to around tens-of-microseconds)
for name in 'st_atime st_mtime st_ctime'.split():
floaty = int(getattr(result, name) * 100000)
nanosecondy = getattr(result, name + "_ns") // 10000
self.assertAlmostEqual(floaty, nanosecondy, delta=2)
try:
result[200]
self.fail("No exception raised")
except IndexError:
pass
# Make sure that assignment fails
try:
result.st_mode = 1
self.fail("No exception raised")
except AttributeError:
pass
try:
result.st_rdev = 1
self.fail("No exception raised")
except (AttributeError, TypeError):
pass
try:
result.parrot = 1
self.fail("No exception raised")
except AttributeError:
pass
# Use the stat_result constructor with a too-short tuple.
try:
result2 = os.stat_result((10,))
self.fail("No exception raised")
except TypeError:
pass
# Use the constructor with a too-long tuple.
try:
result2 = os.stat_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
except TypeError:
pass
def test_stat_attributes(self):
self.check_stat_attributes(self.fname)
def test_stat_attributes_bytes(self):
try:
fname = self.fname.encode(sys.getfilesystemencoding())
except UnicodeEncodeError:
self.skipTest("cannot encode %a for the filesystem" % self.fname)
self.check_stat_attributes(fname)
def test_stat_result_pickle(self):
result = os.stat(self.fname)
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
p = pickle.dumps(result, proto)
self.assertIn(b'stat_result', p)
if proto < 4:
self.assertIn(b'cos\nstat_result\n', p)
unpickled = pickle.loads(p)
self.assertEqual(result, unpickled)
@unittest.skipUnless(hasattr(os, 'statvfs'), 'test needs os.statvfs()')
def test_statvfs_attributes(self):
result = os.statvfs(self.fname)
# Make sure direct access works
self.assertEqual(result.f_bfree, result[3])
# Make sure all the attributes are there.
members = ('bsize', 'frsize', 'blocks', 'bfree', 'bavail', 'files',
'ffree', 'favail', 'flag', 'namemax')
for value, member in enumerate(members):
self.assertEqual(getattr(result, 'f_' + member), result[value])
self.assertTrue(isinstance(result.f_fsid, int))
# Test that the size of the tuple doesn't change
self.assertEqual(len(result), 10)
# Make sure that assignment really fails
try:
result.f_bfree = 1
self.fail("No exception raised")
except AttributeError:
pass
try:
result.parrot = 1
self.fail("No exception raised")
except AttributeError:
pass
# Use the constructor with a too-short tuple.
try:
result2 = os.statvfs_result((10,))
self.fail("No exception raised")
except TypeError:
pass
# Use the constructor with a too-long tuple.
try:
result2 = os.statvfs_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
except TypeError:
pass
@unittest.skipUnless(hasattr(os, 'statvfs'),
"need os.statvfs()")
def test_statvfs_result_pickle(self):
result = os.statvfs(self.fname)
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
p = pickle.dumps(result, proto)
self.assertIn(b'statvfs_result', p)
if proto < 4:
self.assertIn(b'cos\nstatvfs_result\n', p)
unpickled = pickle.loads(p)
self.assertEqual(result, unpickled)
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
def test_1686475(self):
# Verify that an open file can be stat'ed
try:
os.stat(r"c:\pagefile.sys")
except FileNotFoundError:
self.skipTest(r'c:\pagefile.sys does not exist')
except OSError as e:
self.fail("Could not stat pagefile.sys")
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_15261(self):
# Verify that stat'ing a closed fd does not cause crash
r, w = os.pipe()
try:
os.stat(r) # should not raise error
finally:
os.close(r)
os.close(w)
with self.assertRaises(OSError) as ctx:
os.stat(r)
self.assertEqual(ctx.exception.errno, errno.EBADF)
def check_file_attributes(self, result):
self.assertTrue(hasattr(result, 'st_file_attributes'))
self.assertTrue(isinstance(result.st_file_attributes, int))
self.assertTrue(0 <= result.st_file_attributes <= 0xFFFFFFFF)
@unittest.skipUnless(sys.platform == "win32",
"st_file_attributes is Win32 specific")
def test_file_attributes(self):
# test file st_file_attributes (FILE_ATTRIBUTE_DIRECTORY not set)
result = os.stat(self.fname)
self.check_file_attributes(result)
self.assertEqual(
result.st_file_attributes & stat.FILE_ATTRIBUTE_DIRECTORY,
0)
# test directory st_file_attributes (FILE_ATTRIBUTE_DIRECTORY set)
dirname = support.TESTFN + "dir"
os.mkdir(dirname)
self.addCleanup(os.rmdir, dirname)
result = os.stat(dirname)
self.check_file_attributes(result)
self.assertEqual(
result.st_file_attributes & stat.FILE_ATTRIBUTE_DIRECTORY,
stat.FILE_ATTRIBUTE_DIRECTORY)
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
def test_access_denied(self):
# Default to FindFirstFile WIN32_FIND_DATA when access is
# denied. See issue 28075.
# os.environ['TEMP'] should be located on a volume that
# supports file ACLs.
fname = os.path.join(os.environ['TEMP'], self.fname)
self.addCleanup(support.unlink, fname)
create_file(fname, b'ABC')
# Deny the right to [S]YNCHRONIZE on the file to
# force CreateFile to fail with ERROR_ACCESS_DENIED.
DETACHED_PROCESS = 8
subprocess.check_call(
# bpo-30584: Use security identifier *S-1-5-32-545 instead
# of localized "Users" to not depend on the locale.
['icacls.exe', fname, '/deny', '*S-1-5-32-545:(S)'],
creationflags=DETACHED_PROCESS
)
result = os.stat(fname)
self.assertNotEqual(result.st_size, 0)
class UtimeTests(unittest.TestCase):
def setUp(self):
self.dirname = support.TESTFN
self.fname = os.path.join(self.dirname, "f1")
self.addCleanup(support.rmtree, self.dirname)
os.mkdir(self.dirname)
create_file(self.fname)
def support_subsecond(self, filename):
# Heuristic to check if the filesystem supports timestamp with
# subsecond resolution: check if float and int timestamps are different
st = os.stat(filename)
return ((st.st_atime != st[7])
or (st.st_mtime != st[8])
or (st.st_ctime != st[9]))
def _test_utime(self, set_time, filename=None):
if not filename:
filename = self.fname
support_subsecond = self.support_subsecond(filename)
if support_subsecond:
# Timestamp with a resolution of 1 microsecond (10^-6).
#
# The resolution of the C internal function used by os.utime()
# depends on the platform: 1 sec, 1 us, 1 ns. Writing a portable
# test with a resolution of 1 ns requires more work:
# see the issue #15745.
atime_ns = 1002003000 # 1.002003 seconds
mtime_ns = 4005006000 # 4.005006 seconds
else:
# use a resolution of 1 second
atime_ns = 5 * 10**9
mtime_ns = 8 * 10**9
set_time(filename, (atime_ns, mtime_ns))
st = os.stat(filename)
if support_subsecond:
self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-6)
self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-6)
else:
self.assertEqual(st.st_atime, atime_ns * 1e-9)
self.assertEqual(st.st_mtime, mtime_ns * 1e-9)
self.assertEqual(st.st_atime_ns, atime_ns)
self.assertEqual(st.st_mtime_ns, mtime_ns)
def test_utime(self):
def set_time(filename, ns):
# test the ns keyword parameter
os.utime(filename, ns=ns)
self._test_utime(set_time)
@staticmethod
def ns_to_sec(ns):
# Convert a number of nanosecond (int) to a number of seconds (float).
# Round towards infinity by adding 0.5 nanosecond to avoid rounding
# issue, os.utime() rounds towards minus infinity.
return (ns * 1e-9) + 0.5e-9
def test_utime_by_indexed(self):
# pass times as floating point seconds as the second indexed parameter
def set_time(filename, ns):
atime_ns, mtime_ns = ns
atime = self.ns_to_sec(atime_ns)
mtime = self.ns_to_sec(mtime_ns)
# test utimensat(timespec), utimes(timeval), utime(utimbuf)
# or utime(time_t)
os.utime(filename, (atime, mtime))
self._test_utime(set_time)
def test_utime_by_times(self):
def set_time(filename, ns):
atime_ns, mtime_ns = ns
atime = self.ns_to_sec(atime_ns)
mtime = self.ns_to_sec(mtime_ns)
# test the times keyword parameter
os.utime(filename, times=(atime, mtime))
self._test_utime(set_time)
@unittest.skipUnless(os.utime in os.supports_follow_symlinks,
"follow_symlinks support for utime required "
"for this test.")
def test_utime_nofollow_symlinks(self):
def set_time(filename, ns):
# use follow_symlinks=False to test utimensat(timespec)
# or lutimes(timeval)
os.utime(filename, ns=ns, follow_symlinks=False)
self._test_utime(set_time)
@unittest.skipUnless(os.utime in os.supports_fd,
"fd support for utime required for this test.")
def test_utime_fd(self):
def set_time(filename, ns):
with open(filename, 'wb', 0) as fp:
# use a file descriptor to test futimens(timespec)
# or futimes(timeval)
os.utime(fp.fileno(), ns=ns)
self._test_utime(set_time)
@unittest.skipUnless(os.utime in os.supports_dir_fd,
"dir_fd support for utime required for this test.")
def test_utime_dir_fd(self):
def set_time(filename, ns):
dirname, name = os.path.split(filename)
dirfd = os.open(dirname, os.O_RDONLY)
try:
# pass dir_fd to test utimensat(timespec) or futimesat(timeval)
os.utime(name, dir_fd=dirfd, ns=ns)
finally:
os.close(dirfd)
self._test_utime(set_time)
def test_utime_directory(self):
def set_time(filename, ns):
# test calling os.utime() on a directory
os.utime(filename, ns=ns)
self._test_utime(set_time, filename=self.dirname)
def _test_utime_current(self, set_time):
# Get the system clock
current = time.time()
# Call os.utime() to set the timestamp to the current system clock
set_time(self.fname)
if not self.support_subsecond(self.fname):
delta = 1.0
else:
# On Windows, the usual resolution of time.time() is 15.6 ms.
# bpo-30649: Tolerate 50 ms for slow Windows buildbots.
#
# x86 Gentoo Refleaks 3.x once failed with dt=20.2 ms. So use
# also 50 ms on other platforms.
delta = 0.050
st = os.stat(self.fname)
msg = ("st_time=%r, current=%r, dt=%r"
% (st.st_mtime, current, st.st_mtime - current))
self.assertAlmostEqual(st.st_mtime, current,
delta=delta, msg=msg)
def test_utime_current(self):
def set_time(filename):
# Set to the current time in the new way
os.utime(self.fname)
self._test_utime_current(set_time)
def test_utime_current_old(self):
def set_time(filename):
# Set to the current time in the old explicit way.
os.utime(self.fname, None)
self._test_utime_current(set_time)
def get_file_system(self, path):
if sys.platform == 'win32':
root = os.path.splitdrive(os.path.abspath(path))[0] + '\\'
import ctypes
kernel32 = ctypes.windll.kernel32
buf = ctypes.create_unicode_buffer("", 100)
ok = kernel32.GetVolumeInformationW(root, None, 0,
None, None, None,
buf, len(buf))
if ok:
return buf.value
# return None if the filesystem is unknown
def test_large_time(self):
# Many filesystems are limited to the year 2038. At least, the test
# pass with NTFS filesystem.
if self.get_file_system(self.dirname) != "NTFS":
self.skipTest("requires NTFS")
large = 5000000000 # some day in 2128
os.utime(self.fname, (large, large))
self.assertEqual(os.stat(self.fname).st_mtime, large)
def test_utime_invalid_arguments(self):
# seconds and nanoseconds parameters are mutually exclusive
with self.assertRaises(ValueError):
os.utime(self.fname, (5, 5), ns=(5, 5))
from test import mapping_tests
class EnvironTests(mapping_tests.BasicTestMappingProtocol):
"""check that os.environ object conform to mapping protocol"""
type2test = None
def setUp(self):
self.__save = dict(os.environ)
if os.supports_bytes_environ:
self.__saveb = dict(os.environb)
for key, value in self._reference().items():
os.environ[key] = value
def tearDown(self):
os.environ.clear()
os.environ.update(self.__save)
if os.supports_bytes_environ:
os.environb.clear()
os.environb.update(self.__saveb)
def _reference(self):
return {"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"}
def _empty_mapping(self):
os.environ.clear()
return os.environ
# Bug 1110478
@unittest.skipUnless(unix_shell and os.path.exists(unix_shell),
'requires a shell')
def test_update2(self):
os.environ.clear()
os.environ.update(HELLO="World")
with os.popen("%s -c 'echo $HELLO'" % unix_shell) as popen:
value = popen.read().strip()
self.assertEqual(value, "World")
@unittest.skipUnless(unix_shell and os.path.exists(unix_shell),
'requires a shell')
def test_os_popen_iter(self):
with os.popen("%s -c 'echo \"line1\nline2\nline3\"'"
% unix_shell) as popen:
it = iter(popen)
self.assertEqual(next(it), "line1\n")
self.assertEqual(next(it), "line2\n")
self.assertEqual(next(it), "line3\n")
self.assertRaises(StopIteration, next, it)
# Verify environ keys and values from the OS are of the
# correct str type.
def test_keyvalue_types(self):
for key, val in os.environ.items():
self.assertEqual(type(key), str)
self.assertEqual(type(val), str)
def test_items(self):
for key, value in self._reference().items():
self.assertEqual(os.environ.get(key), value)
# Issue 7310
def test___repr__(self):
"""Check that the repr() of os.environ looks like environ({...})."""
env = os.environ
self.assertEqual(repr(env), 'environ({{{}}})'.format(', '.join(
'{!r}: {!r}'.format(key, value)
for key, value in env.items())))
def test_get_exec_path(self):
defpath_list = os.defpath.split(os.pathsep)
test_path = ['/monty', '/python', '', '/flying/circus']
test_env = {'PATH': os.pathsep.join(test_path)}
saved_environ = os.environ
try:
os.environ = dict(test_env)
# Test that defaulting to os.environ works.
self.assertSequenceEqual(test_path, os.get_exec_path())
self.assertSequenceEqual(test_path, os.get_exec_path(env=None))
finally:
os.environ = saved_environ
# No PATH environment variable
self.assertSequenceEqual(defpath_list, os.get_exec_path({}))
# Empty PATH environment variable
self.assertSequenceEqual(('',), os.get_exec_path({'PATH':''}))
# Supplied PATH environment variable
self.assertSequenceEqual(test_path, os.get_exec_path(test_env))
if os.supports_bytes_environ:
# env cannot contain 'PATH' and b'PATH' keys
try:
# ignore BytesWarning warning
with warnings.catch_warnings(record=True):
mixed_env = {'PATH': '1', b'PATH': b'2'}
except BytesWarning:
# mixed_env cannot be created with python -bb
pass
else:
self.assertRaises(ValueError, os.get_exec_path, mixed_env)
# bytes key and/or value
self.assertSequenceEqual(os.get_exec_path({b'PATH': b'abc'}),
['abc'])
self.assertSequenceEqual(os.get_exec_path({b'PATH': 'abc'}),
['abc'])
self.assertSequenceEqual(os.get_exec_path({'PATH': b'abc'}),
['abc'])
@unittest.skipUnless(os.supports_bytes_environ,
"os.environb required for this test.")
def test_environb(self):
# os.environ -> os.environb
value = 'euro\u20ac'
try:
value_bytes = value.encode(sys.getfilesystemencoding(),
'surrogateescape')
except UnicodeEncodeError:
msg = "U+20AC character is not encodable to %s" % (
sys.getfilesystemencoding(),)
self.skipTest(msg)
os.environ['unicode'] = value
self.assertEqual(os.environ['unicode'], value)
self.assertEqual(os.environb[b'unicode'], value_bytes)
# os.environb -> os.environ
value = b'\xff'
os.environb[b'bytes'] = value
self.assertEqual(os.environb[b'bytes'], value)
value_str = value.decode(sys.getfilesystemencoding(), 'surrogateescape')
self.assertEqual(os.environ['bytes'], value_str)
# On OS X < 10.6, unsetenv() doesn't return a value (bpo-13415).
@support.requires_mac_ver(10, 6)
def test_unset_error(self):
if sys.platform == "win32":
# an environment variable is limited to 32,767 characters
key = 'x' * 50000
self.assertRaises(ValueError, os.environ.__delitem__, key)
else:
# "=" is not allowed in a variable name
key = 'key='
self.assertRaises(OSError, os.environ.__delitem__, key)
def test_key_type(self):
missing = 'missingkey'
self.assertNotIn(missing, os.environ)
with self.assertRaises(KeyError) as cm:
os.environ[missing]
self.assertIs(cm.exception.args[0], missing)
self.assertTrue(cm.exception.__suppress_context__)
with self.assertRaises(KeyError) as cm:
del os.environ[missing]
self.assertIs(cm.exception.args[0], missing)
self.assertTrue(cm.exception.__suppress_context__)
def _test_environ_iteration(self, collection):
iterator = iter(collection)
new_key = "__new_key__"
next(iterator) # start iteration over os.environ.items
# add a new key in os.environ mapping
os.environ[new_key] = "test_environ_iteration"
try:
next(iterator) # force iteration over modified mapping
self.assertEqual(os.environ[new_key], "test_environ_iteration")
finally:
del os.environ[new_key]
def test_iter_error_when_changing_os_environ(self):
self._test_environ_iteration(os.environ)
def test_iter_error_when_changing_os_environ_items(self):
self._test_environ_iteration(os.environ.items())
def test_iter_error_when_changing_os_environ_values(self):
self._test_environ_iteration(os.environ.values())
class WalkTests(unittest.TestCase):
"""Tests for os.walk()."""
# Wrapper to hide minor differences between os.walk and os.fwalk
# to tests both functions with the same code base
def walk(self, top, **kwargs):
if 'follow_symlinks' in kwargs:
kwargs['followlinks'] = kwargs.pop('follow_symlinks')
return os.walk(top, **kwargs)
def setUp(self):
join = os.path.join
self.addCleanup(support.rmtree, support.TESTFN)
# Build:
# TESTFN/
# TEST1/ a file kid and two directory kids
# tmp1
# SUB1/ a file kid and a directory kid
# tmp2
# SUB11/ no kids
# SUB2/ a file kid and a dirsymlink kid
# tmp3
# SUB21/ not readable
# tmp5
# link/ a symlink to TESTFN.2
# broken_link
# broken_link2
# broken_link3
# TEST2/
# tmp4 a lone file
self.walk_path = join(support.TESTFN, "TEST1")
self.sub1_path = join(self.walk_path, "SUB1")
self.sub11_path = join(self.sub1_path, "SUB11")
sub2_path = join(self.walk_path, "SUB2")
sub21_path = join(sub2_path, "SUB21")
tmp1_path = join(self.walk_path, "tmp1")
tmp2_path = join(self.sub1_path, "tmp2")
tmp3_path = join(sub2_path, "tmp3")
tmp5_path = join(sub21_path, "tmp3")
self.link_path = join(sub2_path, "link")
t2_path = join(support.TESTFN, "TEST2")
tmp4_path = join(support.TESTFN, "TEST2", "tmp4")
broken_link_path = join(sub2_path, "broken_link")
broken_link2_path = join(sub2_path, "broken_link2")
broken_link3_path = join(sub2_path, "broken_link3")
# Create stuff.
os.makedirs(self.sub11_path)
os.makedirs(sub2_path)
os.makedirs(sub21_path)
os.makedirs(t2_path)
for path in tmp1_path, tmp2_path, tmp3_path, tmp4_path, tmp5_path:
with open(path, "x") as f:
f.write("I'm " + path + " and proud of it. Blame test_os.\n")
if support.can_symlink():
os.symlink(os.path.abspath(t2_path), self.link_path)
os.symlink('broken', broken_link_path, True)
os.symlink(join('tmp3', 'broken'), broken_link2_path, True)
os.symlink(join('SUB21', 'tmp5'), broken_link3_path, True)
self.sub2_tree = (sub2_path, ["SUB21", "link"],
["broken_link", "broken_link2", "broken_link3",
"tmp3"])
else:
self.sub2_tree = (sub2_path, [], ["tmp3"])
os.chmod(sub21_path, 0)
try:
os.listdir(sub21_path)
except PermissionError:
self.addCleanup(os.chmod, sub21_path, stat.S_IRWXU)
else:
os.chmod(sub21_path, stat.S_IRWXU)
os.unlink(tmp5_path)
os.rmdir(sub21_path)
del self.sub2_tree[1][:1]
def test_walk_topdown(self):
# Walk top-down.
all = list(self.walk(self.walk_path))
self.assertEqual(len(all), 4)
# We can't know which order SUB1 and SUB2 will appear in.
# Not flipped: TESTFN, SUB1, SUB11, SUB2
# flipped: TESTFN, SUB2, SUB1, SUB11
flipped = all[0][1][0] != "SUB1"
all[0][1].sort()
all[3 - 2 * flipped][-1].sort()
all[3 - 2 * flipped][1].sort()
self.assertEqual(all[0], (self.walk_path, ["SUB1", "SUB2"], ["tmp1"]))
self.assertEqual(all[1 + flipped], (self.sub1_path, ["SUB11"], ["tmp2"]))
self.assertEqual(all[2 + flipped], (self.sub11_path, [], []))
self.assertEqual(all[3 - 2 * flipped], self.sub2_tree)
def test_walk_prune(self, walk_path=None):
if walk_path is None:
walk_path = self.walk_path
# Prune the search.
all = []
for root, dirs, files in self.walk(walk_path):
all.append((root, dirs, files))
# Don't descend into SUB1.
if 'SUB1' in dirs:
# Note that this also mutates the dirs we appended to all!
dirs.remove('SUB1')
self.assertEqual(len(all), 2)
self.assertEqual(all[0], (self.walk_path, ["SUB2"], ["tmp1"]))
all[1][-1].sort()
all[1][1].sort()
self.assertEqual(all[1], self.sub2_tree)
def test_file_like_path(self):
self.test_walk_prune(FakePath(self.walk_path))
def test_walk_bottom_up(self):
# Walk bottom-up.
all = list(self.walk(self.walk_path, topdown=False))
self.assertEqual(len(all), 4, all)
# We can't know which order SUB1 and SUB2 will appear in.
# Not flipped: SUB11, SUB1, SUB2, TESTFN
# flipped: SUB2, SUB11, SUB1, TESTFN
flipped = all[3][1][0] != "SUB1"
all[3][1].sort()
all[2 - 2 * flipped][-1].sort()
all[2 - 2 * flipped][1].sort()
self.assertEqual(all[3],
(self.walk_path, ["SUB1", "SUB2"], ["tmp1"]))
self.assertEqual(all[flipped],
(self.sub11_path, [], []))
self.assertEqual(all[flipped + 1],
(self.sub1_path, ["SUB11"], ["tmp2"]))
self.assertEqual(all[2 - 2 * flipped],
self.sub2_tree)
def test_walk_symlink(self):
if not support.can_symlink():
self.skipTest("need symlink support")
# Walk, following symlinks.
walk_it = self.walk(self.walk_path, follow_symlinks=True)
for root, dirs, files in walk_it:
if root == self.link_path:
self.assertEqual(dirs, [])
self.assertEqual(files, ["tmp4"])
break
else:
self.fail("Didn't follow symlink with followlinks=True")
def test_walk_bad_dir(self):
# Walk top-down.
errors = []
walk_it = self.walk(self.walk_path, onerror=errors.append)
root, dirs, files = next(walk_it)
self.assertEqual(errors, [])
dir1 = 'SUB1'
path1 = os.path.join(root, dir1)
path1new = os.path.join(root, dir1 + '.new')
os.rename(path1, path1new)
try:
roots = [r for r, d, f in walk_it]
self.assertTrue(errors)
self.assertNotIn(path1, roots)
self.assertNotIn(path1new, roots)
for dir2 in dirs:
if dir2 != dir1:
self.assertIn(os.path.join(root, dir2), roots)
finally:
os.rename(path1new, path1)
@unittest.skipUnless(hasattr(os, 'fwalk'), "Test needs os.fwalk()")
class FwalkTests(WalkTests):
"""Tests for os.fwalk()."""
def walk(self, top, **kwargs):
for root, dirs, files, root_fd in self.fwalk(top, **kwargs):
yield (root, dirs, files)
def fwalk(self, *args, **kwargs):
return os.fwalk(*args, **kwargs)
def _compare_to_walk(self, walk_kwargs, fwalk_kwargs):
"""
compare with walk() results.
"""
walk_kwargs = walk_kwargs.copy()
fwalk_kwargs = fwalk_kwargs.copy()
for topdown, follow_symlinks in itertools.product((True, False), repeat=2):
walk_kwargs.update(topdown=topdown, followlinks=follow_symlinks)
fwalk_kwargs.update(topdown=topdown, follow_symlinks=follow_symlinks)
expected = {}
for root, dirs, files in os.walk(**walk_kwargs):
expected[root] = (set(dirs), set(files))
for root, dirs, files, rootfd in self.fwalk(**fwalk_kwargs):
self.assertIn(root, expected)
self.assertEqual(expected[root], (set(dirs), set(files)))
def test_compare_to_walk(self):
kwargs = {'top': support.TESTFN}
self._compare_to_walk(kwargs, kwargs)
def test_dir_fd(self):
try:
fd = os.open(".", os.O_RDONLY)
walk_kwargs = {'top': support.TESTFN}
fwalk_kwargs = walk_kwargs.copy()
fwalk_kwargs['dir_fd'] = fd
self._compare_to_walk(walk_kwargs, fwalk_kwargs)
finally:
os.close(fd)
def test_yields_correct_dir_fd(self):
# check returned file descriptors
for topdown, follow_symlinks in itertools.product((True, False), repeat=2):
args = support.TESTFN, topdown, None
for root, dirs, files, rootfd in self.fwalk(*args, follow_symlinks=follow_symlinks):
# check that the FD is valid
os.fstat(rootfd)
# redundant check
os.stat(rootfd)
# check that listdir() returns consistent information
self.assertEqual(set(os.listdir(rootfd)), set(dirs) | set(files))
def test_fd_leak(self):
# Since we're opening a lot of FDs, we must be careful to avoid leaks:
# we both check that calling fwalk() a large number of times doesn't
# yield EMFILE, and that the minimum allocated FD hasn't changed.
minfd = os.dup(1)
os.close(minfd)
for i in range(256):
for x in self.fwalk(support.TESTFN):
pass
newfd = os.dup(1)
self.addCleanup(os.close, newfd)
self.assertEqual(newfd, minfd)
class BytesWalkTests(WalkTests):
"""Tests for os.walk() with bytes."""
def walk(self, top, **kwargs):
if 'follow_symlinks' in kwargs:
kwargs['followlinks'] = kwargs.pop('follow_symlinks')
for broot, bdirs, bfiles in os.walk(os.fsencode(top), **kwargs):
root = os.fsdecode(broot)
dirs = list(map(os.fsdecode, bdirs))
files = list(map(os.fsdecode, bfiles))
yield (root, dirs, files)
bdirs[:] = list(map(os.fsencode, dirs))
bfiles[:] = list(map(os.fsencode, files))
@unittest.skipUnless(hasattr(os, 'fwalk'), "Test needs os.fwalk()")
class BytesFwalkTests(FwalkTests):
"""Tests for os.walk() with bytes."""
def fwalk(self, top='.', *args, **kwargs):
for broot, bdirs, bfiles, topfd in os.fwalk(os.fsencode(top), *args, **kwargs):
root = os.fsdecode(broot)
dirs = list(map(os.fsdecode, bdirs))
files = list(map(os.fsdecode, bfiles))
yield (root, dirs, files, topfd)
bdirs[:] = list(map(os.fsencode, dirs))
bfiles[:] = list(map(os.fsencode, files))
class MakedirTests(unittest.TestCase):
def setUp(self):
os.mkdir(support.TESTFN)
def test_makedir(self):
base = support.TESTFN
path = os.path.join(base, 'dir1', 'dir2', 'dir3')
os.makedirs(path) # Should work
path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4')
os.makedirs(path)
# Try paths with a '.' in them
self.assertRaises(OSError, os.makedirs, os.curdir)
path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4', 'dir5', os.curdir)
os.makedirs(path)
path = os.path.join(base, 'dir1', os.curdir, 'dir2', 'dir3', 'dir4',
'dir5', 'dir6')
os.makedirs(path)
def test_mode(self):
with support.temp_umask(0o002):
base = support.TESTFN
parent = os.path.join(base, 'dir1')
path = os.path.join(parent, 'dir2')
os.makedirs(path, 0o555)
self.assertTrue(os.path.exists(path))
self.assertTrue(os.path.isdir(path))
if os.name != 'nt':
self.assertEqual(stat.S_IMODE(os.stat(path).st_mode), 0o555)
self.assertEqual(stat.S_IMODE(os.stat(parent).st_mode), 0o775)
def test_exist_ok_existing_directory(self):
path = os.path.join(support.TESTFN, 'dir1')
mode = 0o777
old_mask = os.umask(0o022)
os.makedirs(path, mode)
self.assertRaises(OSError, os.makedirs, path, mode)
self.assertRaises(OSError, os.makedirs, path, mode, exist_ok=False)
os.makedirs(path, 0o776, exist_ok=True)
os.makedirs(path, mode=mode, exist_ok=True)
os.umask(old_mask)
# Issue #25583: A drive root could raise PermissionError on Windows
os.makedirs(os.path.abspath('/'), exist_ok=True)
def test_exist_ok_s_isgid_directory(self):
path = os.path.join(support.TESTFN, 'dir1')
S_ISGID = stat.S_ISGID
mode = 0o777
old_mask = os.umask(0o022)
try:
existing_testfn_mode = stat.S_IMODE(
os.lstat(support.TESTFN).st_mode)
try:
os.chmod(support.TESTFN, existing_testfn_mode | S_ISGID)
except PermissionError:
raise unittest.SkipTest('Cannot set S_ISGID for dir.')
if (os.lstat(support.TESTFN).st_mode & S_ISGID != S_ISGID):
raise unittest.SkipTest('No support for S_ISGID dir mode.')
# The os should apply S_ISGID from the parent dir for us, but
# this test need not depend on that behavior. Be explicit.
os.makedirs(path, mode | S_ISGID)
# http://bugs.python.org/issue14992
# Should not fail when the bit is already set.
os.makedirs(path, mode, exist_ok=True)
# remove the bit.
os.chmod(path, stat.S_IMODE(os.lstat(path).st_mode) & ~S_ISGID)
# May work even when the bit is not already set when demanded.
os.makedirs(path, mode | S_ISGID, exist_ok=True)
finally:
os.umask(old_mask)
def test_exist_ok_existing_regular_file(self):
base = support.TESTFN
path = os.path.join(support.TESTFN, 'dir1')
f = open(path, 'w')
f.write('abc')
f.close()
self.assertRaises(OSError, os.makedirs, path)
self.assertRaises(OSError, os.makedirs, path, exist_ok=False)
self.assertRaises(OSError, os.makedirs, path, exist_ok=True)
os.remove(path)
def tearDown(self):
path = os.path.join(support.TESTFN, 'dir1', 'dir2', 'dir3',
'dir4', 'dir5', 'dir6')
# If the tests failed, the bottom-most directory ('../dir6')
# may not have been created, so we look for the outermost directory
# that exists.
while not os.path.exists(path) and path != support.TESTFN:
path = os.path.dirname(path)
os.removedirs(path)
@unittest.skipUnless(hasattr(os, 'chown'), "Test needs chown")
class ChownFileTests(unittest.TestCase):
@classmethod
def setUpClass(cls):
os.mkdir(support.TESTFN)
def test_chown_uid_gid_arguments_must_be_index(self):
stat = os.stat(support.TESTFN)
uid = stat.st_uid
gid = stat.st_gid
for value in (-1.0, -1j, decimal.Decimal(-1), fractions.Fraction(-2, 2)):
self.assertRaises(TypeError, os.chown, support.TESTFN, value, gid)
self.assertRaises(TypeError, os.chown, support.TESTFN, uid, value)
self.assertIsNone(os.chown(support.TESTFN, uid, gid))
self.assertIsNone(os.chown(support.TESTFN, -1, -1))
@unittest.skipUnless(len(groups) > 1, "test needs more than one group")
def test_chown(self):
gid_1, gid_2 = groups[:2]
uid = os.stat(support.TESTFN).st_uid
os.chown(support.TESTFN, uid, gid_1)
gid = os.stat(support.TESTFN).st_gid
self.assertEqual(gid, gid_1)
os.chown(support.TESTFN, uid, gid_2)
gid = os.stat(support.TESTFN).st_gid
self.assertEqual(gid, gid_2)
@unittest.skipUnless(root_in_posix and len(all_users) > 1,
"test needs root privilege and more than one user")
def test_chown_with_root(self):
uid_1, uid_2 = all_users[:2]
gid = os.stat(support.TESTFN).st_gid
os.chown(support.TESTFN, uid_1, gid)
uid = os.stat(support.TESTFN).st_uid
self.assertEqual(uid, uid_1)
os.chown(support.TESTFN, uid_2, gid)
uid = os.stat(support.TESTFN).st_uid
self.assertEqual(uid, uid_2)
@unittest.skipUnless(not root_in_posix and len(all_users) > 1,
"test needs non-root account and more than one user")
def test_chown_without_permission(self):
uid_1, uid_2 = all_users[:2]
gid = os.stat(support.TESTFN).st_gid
with self.assertRaises(PermissionError):
os.chown(support.TESTFN, uid_1, gid)
os.chown(support.TESTFN, uid_2, gid)
@classmethod
def tearDownClass(cls):
os.rmdir(support.TESTFN)
class RemoveDirsTests(unittest.TestCase):
def setUp(self):
os.makedirs(support.TESTFN)
def tearDown(self):
support.rmtree(support.TESTFN)
def test_remove_all(self):
dira = os.path.join(support.TESTFN, 'dira')
os.mkdir(dira)
dirb = os.path.join(dira, 'dirb')
os.mkdir(dirb)
os.removedirs(dirb)
self.assertFalse(os.path.exists(dirb))
self.assertFalse(os.path.exists(dira))
self.assertFalse(os.path.exists(support.TESTFN))
def test_remove_partial(self):
dira = os.path.join(support.TESTFN, 'dira')
os.mkdir(dira)
dirb = os.path.join(dira, 'dirb')
os.mkdir(dirb)
create_file(os.path.join(dira, 'file.txt'))
os.removedirs(dirb)
self.assertFalse(os.path.exists(dirb))
self.assertTrue(os.path.exists(dira))
self.assertTrue(os.path.exists(support.TESTFN))
def test_remove_nothing(self):
dira = os.path.join(support.TESTFN, 'dira')
os.mkdir(dira)
dirb = os.path.join(dira, 'dirb')
os.mkdir(dirb)
create_file(os.path.join(dirb, 'file.txt'))
with self.assertRaises(OSError):
os.removedirs(dirb)
self.assertTrue(os.path.exists(dirb))
self.assertTrue(os.path.exists(dira))
self.assertTrue(os.path.exists(support.TESTFN))
class DevNullTests(unittest.TestCase):
def test_devnull(self):
with open(os.devnull, 'wb', 0) as f:
f.write(b'hello')
f.close()
with open(os.devnull, 'rb') as f:
self.assertEqual(f.read(), b'')
class URandomTests(unittest.TestCase):
def test_urandom_length(self):
self.assertEqual(len(os.urandom(0)), 0)
self.assertEqual(len(os.urandom(1)), 1)
self.assertEqual(len(os.urandom(10)), 10)
self.assertEqual(len(os.urandom(100)), 100)
self.assertEqual(len(os.urandom(1000)), 1000)
def test_urandom_value(self):
data1 = os.urandom(16)
self.assertIsInstance(data1, bytes)
data2 = os.urandom(16)
self.assertNotEqual(data1, data2)
def get_urandom_subprocess(self, count):
code = '\n'.join((
'import os, sys',
'data = os.urandom(%s)' % count,
'sys.stdout.buffer.write(data)',
'sys.stdout.buffer.flush()'))
out = assert_python_ok('-c', code)
stdout = out[1]
self.assertEqual(len(stdout), count)
return stdout
def test_urandom_subprocess(self):
data1 = self.get_urandom_subprocess(16)
data2 = self.get_urandom_subprocess(16)
self.assertNotEqual(data1, data2)
@unittest.skipUnless(hasattr(os, 'getrandom'), 'need os.getrandom()')
class GetRandomTests(unittest.TestCase):
@classmethod
def setUpClass(cls):
try:
os.getrandom(1)
except OSError as exc:
if exc.errno == errno.ENOSYS:
# Python compiled on a more recent Linux version
# than the current Linux kernel
raise unittest.SkipTest("getrandom() syscall fails with ENOSYS")
else:
raise
def test_getrandom_type(self):
data = os.getrandom(16)
self.assertIsInstance(data, bytes)
self.assertEqual(len(data), 16)
def test_getrandom0(self):
empty = os.getrandom(0)
self.assertEqual(empty, b'')
def test_getrandom_random(self):
self.assertTrue(hasattr(os, 'GRND_RANDOM'))
# Don't test os.getrandom(1, os.GRND_RANDOM) to not consume the rare
# resource /dev/random
def test_getrandom_nonblock(self):
# The call must not fail. Check also that the flag exists
try:
os.getrandom(1, os.GRND_NONBLOCK)
except BlockingIOError:
# System urandom is not initialized yet
pass
def test_getrandom_value(self):
data1 = os.getrandom(16)
data2 = os.getrandom(16)
self.assertNotEqual(data1, data2)
# os.urandom() doesn't use a file descriptor when it is implemented with the
# getentropy() function, the getrandom() function or the getrandom() syscall
OS_URANDOM_DONT_USE_FD = (
sysconfig.get_config_var('HAVE_GETENTROPY') == 1
or sysconfig.get_config_var('HAVE_GETRANDOM') == 1
or sysconfig.get_config_var('HAVE_GETRANDOM_SYSCALL') == 1)
@unittest.skipIf(OS_URANDOM_DONT_USE_FD ,
"os.random() does not use a file descriptor")
class URandomFDTests(unittest.TestCase):
@unittest.skipUnless(resource, "test requires the resource module")
def test_urandom_failure(self):
# Check urandom() failing when it is not able to open /dev/random.
# We spawn a new process to make the test more robust (if getrlimit()
# failed to restore the file descriptor limit after this, the whole
# test suite would crash; this actually happened on the OS X Tiger
# buildbot).
code = """if 1:
import errno
import os
import resource
soft_limit, hard_limit = resource.getrlimit(resource.RLIMIT_NOFILE)
resource.setrlimit(resource.RLIMIT_NOFILE, (1, hard_limit))
try:
os.urandom(16)
except OSError as e:
assert e.errno == errno.EMFILE, e.errno
else:
raise AssertionError("OSError not raised")
"""
assert_python_ok('-c', code)
def test_urandom_fd_closed(self):
# Issue #21207: urandom() should reopen its fd to /dev/urandom if
# closed.
code = """if 1:
import os
import sys
import test.support
os.urandom(4)
with test.support.SuppressCrashReport():
os.closerange(3, 256)
sys.stdout.buffer.write(os.urandom(4))
"""
rc, out, err = assert_python_ok('-Sc', code)
def test_urandom_fd_reopened(self):
# Issue #21207: urandom() should detect its fd to /dev/urandom
# changed to something else, and reopen it.
self.addCleanup(support.unlink, support.TESTFN)
create_file(support.TESTFN, b"x" * 256)
code = """if 1:
import os
import sys
import test.support
os.urandom(4)
with test.support.SuppressCrashReport():
for fd in range(3, 256):
try:
os.close(fd)
except OSError:
pass
else:
# Found the urandom fd (XXX hopefully)
break
os.closerange(3, 256)
with open({TESTFN!r}, 'rb') as f:
new_fd = f.fileno()
# Issue #26935: posix allows new_fd and fd to be equal but
# some libc implementations have dup2 return an error in this
# case.
if new_fd != fd:
os.dup2(new_fd, fd)
sys.stdout.buffer.write(os.urandom(4))
sys.stdout.buffer.write(os.urandom(4))
""".format(TESTFN=support.TESTFN)
rc, out, err = assert_python_ok('-Sc', code)
self.assertEqual(len(out), 8)
self.assertNotEqual(out[0:4], out[4:8])
rc, out2, err2 = assert_python_ok('-Sc', code)
self.assertEqual(len(out2), 8)
self.assertNotEqual(out2, out)
@contextlib.contextmanager
def _execvpe_mockup(defpath=None):
"""
Stubs out execv and execve functions when used as context manager.
Records exec calls. The mock execv and execve functions always raise an
exception as they would normally never return.
"""
# A list of tuples containing (function name, first arg, args)
# of calls to execv or execve that have been made.
calls = []
def mock_execv(name, *args):
calls.append(('execv', name, args))
raise RuntimeError("execv called")
def mock_execve(name, *args):
calls.append(('execve', name, args))
raise OSError(errno.ENOTDIR, "execve called")
try:
orig_execv = os.execv
orig_execve = os.execve
orig_defpath = os.defpath
os.execv = mock_execv
os.execve = mock_execve
if defpath is not None:
os.defpath = defpath
yield calls
finally:
os.execv = orig_execv
os.execve = orig_execve
os.defpath = orig_defpath
class ExecTests(unittest.TestCase):
@unittest.skipIf(USING_LINUXTHREADS,
"avoid triggering a linuxthreads bug: see issue #4970")
def test_execvpe_with_bad_program(self):
self.assertRaises(OSError, os.execvpe, 'no such app-',
['no such app-'], None)
def test_execv_with_bad_arglist(self):
self.assertRaises(ValueError, os.execv, 'notepad', ())
self.assertRaises(ValueError, os.execv, 'notepad', [])
self.assertRaises(ValueError, os.execv, 'notepad', ('',))
self.assertRaises(ValueError, os.execv, 'notepad', [''])
def test_execvpe_with_bad_arglist(self):
self.assertRaises(ValueError, os.execvpe, 'notepad', [], None)
self.assertRaises(ValueError, os.execvpe, 'notepad', [], {})
self.assertRaises(ValueError, os.execvpe, 'notepad', [''], {})
@unittest.skipUnless(hasattr(os, '_execvpe'),
"No internal os._execvpe function to test.")
def _test_internal_execvpe(self, test_type):
program_path = os.sep + 'absolutepath'
if test_type is bytes:
program = b'executable'
fullpath = os.path.join(os.fsencode(program_path), program)
native_fullpath = fullpath
arguments = [b'progname', 'arg1', 'arg2']
else:
program = 'executable'
arguments = ['progname', 'arg1', 'arg2']
fullpath = os.path.join(program_path, program)
if os.name != "nt":
native_fullpath = os.fsencode(fullpath)
else:
native_fullpath = fullpath
env = {'spam': 'beans'}
# test os._execvpe() with an absolute path
with _execvpe_mockup() as calls:
self.assertRaises(RuntimeError,
os._execvpe, fullpath, arguments)
self.assertEqual(len(calls), 1)
self.assertEqual(calls[0], ('execv', fullpath, (arguments,)))
# test os._execvpe() with a relative path:
# os.get_exec_path() returns defpath
with _execvpe_mockup(defpath=program_path) as calls:
self.assertRaises(OSError,
os._execvpe, program, arguments, env=env)
self.assertEqual(len(calls), 1)
self.assertSequenceEqual(calls[0],
('execve', native_fullpath, (arguments, env)))
# test os._execvpe() with a relative path:
# os.get_exec_path() reads the 'PATH' variable
with _execvpe_mockup() as calls:
env_path = env.copy()
if test_type is bytes:
env_path[b'PATH'] = program_path
else:
env_path['PATH'] = program_path
self.assertRaises(OSError,
os._execvpe, program, arguments, env=env_path)
self.assertEqual(len(calls), 1)
self.assertSequenceEqual(calls[0],
('execve', native_fullpath, (arguments, env_path)))
def test_internal_execvpe_str(self):
self._test_internal_execvpe(str)
if os.name != "nt":
self._test_internal_execvpe(bytes)
def test_execve_invalid_env(self):
args = [sys.executable, '-c', 'pass']
# null character in the environment variable name
newenv = os.environ.copy()
newenv["FRUIT\0VEGETABLE"] = "cabbage"
with self.assertRaises(ValueError):
os.execve(args[0], args, newenv)
# null character in the environment variable value
newenv = os.environ.copy()
newenv["FRUIT"] = "orange\0VEGETABLE=cabbage"
with self.assertRaises(ValueError):
os.execve(args[0], args, newenv)
# equal character in the environment variable name
newenv = os.environ.copy()
newenv["FRUIT=ORANGE"] = "lemon"
with self.assertRaises(ValueError):
os.execve(args[0], args, newenv)
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
class Win32ErrorTests(unittest.TestCase):
def setUp(self):
try:
os.stat(support.TESTFN)
except FileNotFoundError:
exists = False
except OSError as exc:
exists = True
self.fail("file %s must not exist; os.stat failed with %s"
% (support.TESTFN, exc))
else:
self.fail("file %s must not exist" % support.TESTFN)
def test_rename(self):
self.assertRaises(OSError, os.rename, support.TESTFN, support.TESTFN+".bak")
def test_remove(self):
self.assertRaises(OSError, os.remove, support.TESTFN)
def test_chdir(self):
self.assertRaises(OSError, os.chdir, support.TESTFN)
def test_mkdir(self):
self.addCleanup(support.unlink, support.TESTFN)
with open(support.TESTFN, "x") as f:
self.assertRaises(OSError, os.mkdir, support.TESTFN)
def test_utime(self):
self.assertRaises(OSError, os.utime, support.TESTFN, None)
def test_chmod(self):
self.assertRaises(OSError, os.chmod, support.TESTFN, 0)
class TestInvalidFD(unittest.TestCase):
singles = ["fchdir", "dup", "fdopen", "fdatasync", "fstat",
"fstatvfs", "fsync", "tcgetpgrp", "ttyname"]
#singles.append("close")
#We omit close because it doesn't raise an exception on some platforms
def get_single(f):
def helper(self):
if hasattr(os, f):
self.check(getattr(os, f))
return helper
for f in singles:
locals()["test_"+f] = get_single(f)
def check(self, f, *args):
try:
f(support.make_bad_fd(), *args)
except OSError as e:
self.assertEqual(e.errno, errno.EBADF)
else:
self.fail("%r didn't raise an OSError with a bad file descriptor"
% f)
@unittest.skipUnless(hasattr(os, 'isatty'), 'test needs os.isatty()')
def test_isatty(self):
self.assertEqual(os.isatty(support.make_bad_fd()), False)
@unittest.skipUnless(hasattr(os, 'closerange'), 'test needs os.closerange()')
def test_closerange(self):
fd = support.make_bad_fd()
# Make sure none of the descriptors we are about to close are
# currently valid (issue 6542).
for i in range(10):
try: os.fstat(fd+i)
except OSError:
pass
else:
break
if i < 2:
raise unittest.SkipTest(
"Unable to acquire a range of invalid file descriptors")
self.assertEqual(os.closerange(fd, fd + i-1), None)
@unittest.skipUnless(hasattr(os, 'dup2'), 'test needs os.dup2()')
def test_dup2(self):
self.check(os.dup2, 20)
@unittest.skipUnless(hasattr(os, 'fchmod'), 'test needs os.fchmod()')
def test_fchmod(self):
self.check(os.fchmod, 0)
@unittest.skipUnless(hasattr(os, 'fchown'), 'test needs os.fchown()')
def test_fchown(self):
self.check(os.fchown, -1, -1)
@unittest.skipUnless(hasattr(os, 'fpathconf'), 'test needs os.fpathconf()')
def test_fpathconf(self):
self.check(os.pathconf, "PC_NAME_MAX")
self.check(os.fpathconf, "PC_NAME_MAX")
@unittest.skipUnless(hasattr(os, 'ftruncate'), 'test needs os.ftruncate()')
def test_ftruncate(self):
self.check(os.truncate, 0)
self.check(os.ftruncate, 0)
@unittest.skipUnless(hasattr(os, 'lseek'), 'test needs os.lseek()')
def test_lseek(self):
self.check(os.lseek, 0, 0)
@unittest.skipUnless(hasattr(os, 'read'), 'test needs os.read()')
def test_read(self):
self.check(os.read, 1)
@unittest.skipUnless(hasattr(os, 'readv'), 'test needs os.readv()')
def test_readv(self):
buf = bytearray(10)
self.check(os.readv, [buf])
@unittest.skipUnless(hasattr(os, 'tcsetpgrp'), 'test needs os.tcsetpgrp()')
def test_tcsetpgrpt(self):
self.check(os.tcsetpgrp, 0)
@unittest.skipUnless(hasattr(os, 'write'), 'test needs os.write()')
def test_write(self):
self.check(os.write, b" ")
@unittest.skipUnless(hasattr(os, 'writev'), 'test needs os.writev()')
def test_writev(self):
self.check(os.writev, [b'abc'])
def test_inheritable(self):
self.check(os.get_inheritable)
self.check(os.set_inheritable, True)
@unittest.skipUnless(hasattr(os, 'get_blocking'),
'needs os.get_blocking() and os.set_blocking()')
def test_blocking(self):
self.check(os.get_blocking)
self.check(os.set_blocking, True)
class LinkTests(unittest.TestCase):
def setUp(self):
self.file1 = support.TESTFN
self.file2 = os.path.join(support.TESTFN + "2")
def tearDown(self):
for file in (self.file1, self.file2):
if os.path.exists(file):
os.unlink(file)
def _test_link(self, file1, file2):
create_file(file1)
try:
os.link(file1, file2)
except PermissionError as e:
self.skipTest('os.link(): %s' % e)
with open(file1, "r") as f1, open(file2, "r") as f2:
self.assertTrue(os.path.sameopenfile(f1.fileno(), f2.fileno()))
def test_link(self):
self._test_link(self.file1, self.file2)
def test_link_bytes(self):
self._test_link(bytes(self.file1, sys.getfilesystemencoding()),
bytes(self.file2, sys.getfilesystemencoding()))
def test_unicode_name(self):
try:
os.fsencode("\xf1")
except UnicodeError:
raise unittest.SkipTest("Unable to encode for this platform.")
self.file1 += "\xf1"
self.file2 = self.file1 + "2"
self._test_link(self.file1, self.file2)
@unittest.skipIf(sys.platform == "win32", "Posix specific tests")
class PosixUidGidTests(unittest.TestCase):
@unittest.skipUnless(hasattr(os, 'setuid'), 'test needs os.setuid()')
def test_setuid(self):
if os.getuid() != 0:
self.assertRaises(OSError, os.setuid, 0)
self.assertRaises(OverflowError, os.setuid, 1<<32)
@unittest.skipUnless(hasattr(os, 'setgid'), 'test needs os.setgid()')
def test_setgid(self):
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
self.assertRaises(OSError, os.setgid, 0)
self.assertRaises(OverflowError, os.setgid, 1<<32)
@unittest.skipUnless(hasattr(os, 'seteuid'), 'test needs os.seteuid()')
def test_seteuid(self):
if os.getuid() != 0:
self.assertRaises(OSError, os.seteuid, 0)
self.assertRaises(OverflowError, os.seteuid, 1<<32)
@unittest.skipUnless(hasattr(os, 'setegid'), 'test needs os.setegid()')
def test_setegid(self):
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
self.assertRaises(OSError, os.setegid, 0)
self.assertRaises(OverflowError, os.setegid, 1<<32)
@unittest.skipUnless(hasattr(os, 'setreuid'), 'test needs os.setreuid()')
def test_setreuid(self):
if os.getuid() != 0:
self.assertRaises(OSError, os.setreuid, 0, 0)
self.assertRaises(OverflowError, os.setreuid, 1<<32, 0)
self.assertRaises(OverflowError, os.setreuid, 0, 1<<32)
@unittest.skipUnless(hasattr(os, 'setreuid'), 'test needs os.setreuid()')
def test_setreuid_neg1(self):
# Needs to accept -1. We run this in a subprocess to avoid
# altering the test runner's process state (issue8045).
subprocess.check_call([
sys.executable, '-c',
'import os,sys;os.setreuid(-1,-1);sys.exit(0)'])
@unittest.skipUnless(hasattr(os, 'setregid'), 'test needs os.setregid()')
def test_setregid(self):
if os.getuid() != 0 and not HAVE_WHEEL_GROUP:
self.assertRaises(OSError, os.setregid, 0, 0)
self.assertRaises(OverflowError, os.setregid, 1<<32, 0)
self.assertRaises(OverflowError, os.setregid, 0, 1<<32)
@unittest.skipUnless(hasattr(os, 'setregid'), 'test needs os.setregid()')
def test_setregid_neg1(self):
# Needs to accept -1. We run this in a subprocess to avoid
# altering the test runner's process state (issue8045).
subprocess.check_call([
sys.executable, '-c',
'import os,sys;os.setregid(-1,-1);sys.exit(0)'])
@unittest.skipIf(sys.platform == "win32", "Posix specific tests")
class Pep383Tests(unittest.TestCase):
def setUp(self):
if support.TESTFN_UNENCODABLE:
self.dir = support.TESTFN_UNENCODABLE
elif support.TESTFN_NONASCII:
self.dir = support.TESTFN_NONASCII
else:
self.dir = support.TESTFN
self.bdir = os.fsencode(self.dir)
bytesfn = []
def add_filename(fn):
try:
fn = os.fsencode(fn)
except UnicodeEncodeError:
return
bytesfn.append(fn)
add_filename(support.TESTFN_UNICODE)
if support.TESTFN_UNENCODABLE:
add_filename(support.TESTFN_UNENCODABLE)
if support.TESTFN_NONASCII:
add_filename(support.TESTFN_NONASCII)
if not bytesfn:
self.skipTest("couldn't create any non-ascii filename")
self.unicodefn = set()
os.mkdir(self.dir)
try:
for fn in bytesfn:
support.create_empty_file(os.path.join(self.bdir, fn))
fn = os.fsdecode(fn)
if fn in self.unicodefn:
raise ValueError("duplicate filename")
self.unicodefn.add(fn)
except:
shutil.rmtree(self.dir)
raise
def tearDown(self):
shutil.rmtree(self.dir)
def test_listdir(self):
expected = self.unicodefn
found = set(os.listdir(self.dir))
self.assertEqual(found, expected)
# test listdir without arguments
current_directory = os.getcwd()
try:
os.chdir(os.sep)
self.assertEqual(set(os.listdir()), set(os.listdir(os.sep)))
finally:
os.chdir(current_directory)
def test_open(self):
for fn in self.unicodefn:
f = open(os.path.join(self.dir, fn), 'rb')
f.close()
@unittest.skipUnless(hasattr(os, 'statvfs'),
"need os.statvfs()")
def test_statvfs(self):
# issue #9645
for fn in self.unicodefn:
# should not fail with file not found error
fullname = os.path.join(self.dir, fn)
os.statvfs(fullname)
def test_stat(self):
for fn in self.unicodefn:
os.stat(os.path.join(self.dir, fn))
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
class Win32KillTests(unittest.TestCase):
def _kill(self, sig):
# Start sys.executable as a subprocess and communicate from the
# subprocess to the parent that the interpreter is ready. When it
# becomes ready, send *sig* via os.kill to the subprocess and check
# that the return code is equal to *sig*.
import ctypes
from ctypes import wintypes
import msvcrt
# Since we can't access the contents of the process' stdout until the
# process has exited, use PeekNamedPipe to see what's inside stdout
# without waiting. This is done so we can tell that the interpreter
# is started and running at a point where it could handle a signal.
PeekNamedPipe = ctypes.windll.kernel32.PeekNamedPipe
PeekNamedPipe.restype = wintypes.BOOL
PeekNamedPipe.argtypes = (wintypes.HANDLE, # Pipe handle
ctypes.POINTER(ctypes.c_char), # stdout buf
wintypes.DWORD, # Buffer size
ctypes.POINTER(wintypes.DWORD), # bytes read
ctypes.POINTER(wintypes.DWORD), # bytes avail
ctypes.POINTER(wintypes.DWORD)) # bytes left
msg = "running"
proc = subprocess.Popen([sys.executable, "-c",
"import sys;"
"sys.stdout.write('{}');"
"sys.stdout.flush();"
"input()".format(msg)],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
stdin=subprocess.PIPE)
self.addCleanup(proc.stdout.close)
self.addCleanup(proc.stderr.close)
self.addCleanup(proc.stdin.close)
count, max = 0, 100
while count < max and proc.poll() is None:
# Create a string buffer to store the result of stdout from the pipe
buf = ctypes.create_string_buffer(len(msg))
# Obtain the text currently in proc.stdout
# Bytes read/avail/left are left as NULL and unused
rslt = PeekNamedPipe(msvcrt.get_osfhandle(proc.stdout.fileno()),
buf, ctypes.sizeof(buf), None, None, None)
self.assertNotEqual(rslt, 0, "PeekNamedPipe failed")
if buf.value:
self.assertEqual(msg, buf.value.decode())
break
time.sleep(0.1)
count += 1
else:
self.fail("Did not receive communication from the subprocess")
os.kill(proc.pid, sig)
self.assertEqual(proc.wait(), sig)
def test_kill_sigterm(self):
# SIGTERM doesn't mean anything special, but make sure it works
self._kill(signal.SIGTERM)
def test_kill_int(self):
# os.kill on Windows can take an int which gets set as the exit code
self._kill(100)
def _kill_with_event(self, event, name):
tagname = "test_os_%s" % uuid.uuid1()
m = mmap.mmap(-1, 1, tagname)
m[0] = 0
# Run a script which has console control handling enabled.
proc = subprocess.Popen([sys.executable,
os.path.join(os.path.dirname(__file__),
"win_console_handler.py"), tagname],
creationflags=subprocess.CREATE_NEW_PROCESS_GROUP)
# Let the interpreter startup before we send signals. See #3137.
count, max = 0, 100
while count < max and proc.poll() is None:
if m[0] == 1:
break
time.sleep(0.1)
count += 1
else:
# Forcefully kill the process if we weren't able to signal it.
os.kill(proc.pid, signal.SIGINT)
self.fail("Subprocess didn't finish initialization")
os.kill(proc.pid, event)
# proc.send_signal(event) could also be done here.
# Allow time for the signal to be passed and the process to exit.
time.sleep(0.5)
if not proc.poll():
# Forcefully kill the process if we weren't able to signal it.
os.kill(proc.pid, signal.SIGINT)
self.fail("subprocess did not stop on {}".format(name))
@unittest.skip("subprocesses aren't inheriting Ctrl+C property")
def test_CTRL_C_EVENT(self):
from ctypes import wintypes
import ctypes
# Make a NULL value by creating a pointer with no argument.
NULL = ctypes.POINTER(ctypes.c_int)()
SetConsoleCtrlHandler = ctypes.windll.kernel32.SetConsoleCtrlHandler
SetConsoleCtrlHandler.argtypes = (ctypes.POINTER(ctypes.c_int),
wintypes.BOOL)
SetConsoleCtrlHandler.restype = wintypes.BOOL
# Calling this with NULL and FALSE causes the calling process to
# handle Ctrl+C, rather than ignore it. This property is inherited
# by subprocesses.
SetConsoleCtrlHandler(NULL, 0)
self._kill_with_event(signal.CTRL_C_EVENT, "CTRL_C_EVENT")
def test_CTRL_BREAK_EVENT(self):
self._kill_with_event(signal.CTRL_BREAK_EVENT, "CTRL_BREAK_EVENT")
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
class Win32ListdirTests(unittest.TestCase):
"""Test listdir on Windows."""
def setUp(self):
self.created_paths = []
for i in range(2):
dir_name = 'SUB%d' % i
dir_path = os.path.join(support.TESTFN, dir_name)
file_name = 'FILE%d' % i
file_path = os.path.join(support.TESTFN, file_name)
os.makedirs(dir_path)
with open(file_path, 'w') as f:
f.write("I'm %s and proud of it. Blame test_os.\n" % file_path)
self.created_paths.extend([dir_name, file_name])
self.created_paths.sort()
def tearDown(self):
shutil.rmtree(support.TESTFN)
def test_listdir_no_extended_path(self):
"""Test when the path is not an "extended" path."""
# unicode
self.assertEqual(
sorted(os.listdir(support.TESTFN)),
self.created_paths)
# bytes
self.assertEqual(
sorted(os.listdir(os.fsencode(support.TESTFN))),
[os.fsencode(path) for path in self.created_paths])
def test_listdir_extended_path(self):
"""Test when the path starts with '\\\\?\\'."""
# See: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#maxpath
# unicode
path = '\\\\?\\' + os.path.abspath(support.TESTFN)
self.assertEqual(
sorted(os.listdir(path)),
self.created_paths)
# bytes
path = b'\\\\?\\' + os.fsencode(os.path.abspath(support.TESTFN))
self.assertEqual(
sorted(os.listdir(path)),
[os.fsencode(path) for path in self.created_paths])
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
@support.skip_unless_symlink
class Win32SymlinkTests(unittest.TestCase):
filelink = 'filelinktest'
filelink_target = os.path.abspath(__file__)
dirlink = 'dirlinktest'
dirlink_target = os.path.dirname(filelink_target)
missing_link = 'missing link'
def setUp(self):
assert os.path.exists(self.dirlink_target)
assert os.path.exists(self.filelink_target)
assert not os.path.exists(self.dirlink)
assert not os.path.exists(self.filelink)
assert not os.path.exists(self.missing_link)
def tearDown(self):
if os.path.exists(self.filelink):
os.remove(self.filelink)
if os.path.exists(self.dirlink):
os.rmdir(self.dirlink)
if os.path.lexists(self.missing_link):
os.remove(self.missing_link)
def test_directory_link(self):
os.symlink(self.dirlink_target, self.dirlink)
self.assertTrue(os.path.exists(self.dirlink))
self.assertTrue(os.path.isdir(self.dirlink))
self.assertTrue(os.path.islink(self.dirlink))
self.check_stat(self.dirlink, self.dirlink_target)
def test_file_link(self):
os.symlink(self.filelink_target, self.filelink)
self.assertTrue(os.path.exists(self.filelink))
self.assertTrue(os.path.isfile(self.filelink))
self.assertTrue(os.path.islink(self.filelink))
self.check_stat(self.filelink, self.filelink_target)
def _create_missing_dir_link(self):
'Create a "directory" link to a non-existent target'
linkname = self.missing_link
if os.path.lexists(linkname):
os.remove(linkname)
target = r'c:\\target does not exist.29r3c740'
assert not os.path.exists(target)
target_is_dir = True
os.symlink(target, linkname, target_is_dir)
def test_remove_directory_link_to_missing_target(self):
self._create_missing_dir_link()
# For compatibility with Unix, os.remove will check the
# directory status and call RemoveDirectory if the symlink
# was created with target_is_dir==True.
os.remove(self.missing_link)
@unittest.skip("currently fails; consider for improvement")
def test_isdir_on_directory_link_to_missing_target(self):
self._create_missing_dir_link()
# consider having isdir return true for directory links
self.assertTrue(os.path.isdir(self.missing_link))
@unittest.skip("currently fails; consider for improvement")
def test_rmdir_on_directory_link_to_missing_target(self):
self._create_missing_dir_link()
# consider allowing rmdir to remove directory links
os.rmdir(self.missing_link)
def check_stat(self, link, target):
self.assertEqual(os.stat(link), os.stat(target))
self.assertNotEqual(os.lstat(link), os.stat(link))
bytes_link = os.fsencode(link)
self.assertEqual(os.stat(bytes_link), os.stat(target))
self.assertNotEqual(os.lstat(bytes_link), os.stat(bytes_link))
def test_12084(self):
level1 = os.path.abspath(support.TESTFN)
level2 = os.path.join(level1, "level2")
level3 = os.path.join(level2, "level3")
self.addCleanup(support.rmtree, level1)
os.mkdir(level1)
os.mkdir(level2)
os.mkdir(level3)
file1 = os.path.abspath(os.path.join(level1, "file1"))
create_file(file1)
orig_dir = os.getcwd()
try:
os.chdir(level2)
link = os.path.join(level2, "link")
os.symlink(os.path.relpath(file1), "link")
self.assertIn("link", os.listdir(os.getcwd()))
# Check os.stat calls from the same dir as the link
self.assertEqual(os.stat(file1), os.stat("link"))
# Check os.stat calls from a dir below the link
os.chdir(level1)
self.assertEqual(os.stat(file1),
os.stat(os.path.relpath(link)))
# Check os.stat calls from a dir above the link
os.chdir(level3)
self.assertEqual(os.stat(file1),
os.stat(os.path.relpath(link)))
finally:
os.chdir(orig_dir)
@unittest.skipUnless(os.path.lexists(r'C:\Users\All Users')
and os.path.exists(r'C:\ProgramData'),
'Test directories not found')
def test_29248(self):
# os.symlink() calls CreateSymbolicLink, which creates
# the reparse data buffer with the print name stored
# first, so the offset is always 0. CreateSymbolicLink
# stores the "PrintName" DOS path (e.g. "C:\") first,
# with an offset of 0, followed by the "SubstituteName"
# NT path (e.g. "\??\C:\"). The "All Users" link, on
# the other hand, seems to have been created manually
# with an inverted order.
target = os.readlink(r'C:\Users\All Users')
self.assertTrue(os.path.samefile(target, r'C:\ProgramData'))
def test_buffer_overflow(self):
# Older versions would have a buffer overflow when detecting
# whether a link source was a directory. This test ensures we
# no longer crash, but does not otherwise validate the behavior
segment = 'X' * 27
path = os.path.join(*[segment] * 10)
test_cases = [
# overflow with absolute src
('\\' + path, segment),
# overflow dest with relative src
(segment, path),
# overflow when joining src
(path[:180], path[:180]),
]
for src, dest in test_cases:
try:
os.symlink(src, dest)
except FileNotFoundError:
pass
else:
try:
os.remove(dest)
except OSError:
pass
# Also test with bytes, since that is a separate code path.
try:
os.symlink(os.fsencode(src), os.fsencode(dest))
except FileNotFoundError:
pass
else:
try:
os.remove(dest)
except OSError:
pass
@unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
class Win32JunctionTests(unittest.TestCase):
junction = 'junctiontest'
junction_target = os.path.dirname(os.path.abspath(__file__))
def setUp(self):
assert os.path.exists(self.junction_target)
assert not os.path.exists(self.junction)
def tearDown(self):
if os.path.exists(self.junction):
# os.rmdir delegates to Windows' RemoveDirectoryW,
# which removes junction points safely.
os.rmdir(self.junction)
def test_create_junction(self):
_winapi.CreateJunction(self.junction_target, self.junction)
self.assertTrue(os.path.exists(self.junction))
self.assertTrue(os.path.isdir(self.junction))
# Junctions are not recognized as links.
self.assertFalse(os.path.islink(self.junction))
def test_unlink_removes_junction(self):
_winapi.CreateJunction(self.junction_target, self.junction)
self.assertTrue(os.path.exists(self.junction))
os.unlink(self.junction)
self.assertFalse(os.path.exists(self.junction))
@support.skip_unless_symlink
class NonLocalSymlinkTests(unittest.TestCase):
def setUp(self):
r"""
Create this structure:
base
\___ some_dir
"""
os.makedirs('base/some_dir')
def tearDown(self):
shutil.rmtree('base')
def test_directory_link_nonlocal(self):
"""
The symlink target should resolve relative to the link, not relative
to the current directory.
Then, link base/some_link -> base/some_dir and ensure that some_link
is resolved as a directory.
In issue13772, it was discovered that directory detection failed if
the symlink target was not specified relative to the current
directory, which was a defect in the implementation.
"""
src = os.path.join('base', 'some_link')
os.symlink('some_dir', src)
assert os.path.isdir(src)
class FSEncodingTests(unittest.TestCase):
def test_nop(self):
self.assertEqual(os.fsencode(b'abc\xff'), b'abc\xff')
self.assertEqual(os.fsdecode('abc\u0141'), 'abc\u0141')
def test_identity(self):
# assert fsdecode(fsencode(x)) == x
for fn in ('unicode\u0141', 'latin\xe9', 'ascii'):
try:
bytesfn = os.fsencode(fn)
except UnicodeEncodeError:
continue
self.assertEqual(os.fsdecode(bytesfn), fn)
class DeviceEncodingTests(unittest.TestCase):
def test_bad_fd(self):
# Return None when an fd doesn't actually exist.
self.assertIsNone(os.device_encoding(123456))
@unittest.skipUnless(os.isatty(0) and (sys.platform.startswith('win') or
(hasattr(locale, 'nl_langinfo') and hasattr(locale, 'CODESET'))),
'test requires a tty and either Windows or nl_langinfo(CODESET)')
def test_device_encoding(self):
encoding = os.device_encoding(0)
self.assertIsNotNone(encoding)
self.assertTrue(codecs.lookup(encoding))
class PidTests(unittest.TestCase):
@unittest.skipUnless(hasattr(os, 'getppid'), "test needs os.getppid")
def test_getppid(self):
p = subprocess.Popen([sys.executable, '-c',
'import os; print(os.getppid())'],
stdout=subprocess.PIPE)
stdout, _ = p.communicate()
# We are the parent of our subprocess
self.assertEqual(int(stdout), os.getpid())
def test_waitpid(self):
args = [sys.executable, '-c', 'pass']
# Add an implicit test for PyUnicode_FSConverter().
pid = os.spawnv(os.P_NOWAIT, FakePath(args[0]), args)
status = os.waitpid(pid, 0)
self.assertEqual(status, (pid, 0))
class SpawnTests(unittest.TestCase):
def create_args(self, *, with_env=False, use_bytes=False):
self.exitcode = 17
filename = support.TESTFN
self.addCleanup(support.unlink, filename)
if not with_env:
code = 'import sys; sys.exit(%s)' % self.exitcode
else:
self.env = dict(os.environ)
# create an unique key
self.key = str(uuid.uuid4())
self.env[self.key] = self.key
# read the variable from os.environ to check that it exists
code = ('import sys, os; magic = os.environ[%r]; sys.exit(%s)'
% (self.key, self.exitcode))
with open(filename, "w") as fp:
fp.write(code)
args = [sys.executable, filename]
if use_bytes:
args = [os.fsencode(a) for a in args]
self.env = {os.fsencode(k): os.fsencode(v)
for k, v in self.env.items()}
return args
@requires_os_func('spawnl')
def test_spawnl(self):
args = self.create_args()
exitcode = os.spawnl(os.P_WAIT, args[0], *args)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnle')
def test_spawnle(self):
args = self.create_args(with_env=True)
exitcode = os.spawnle(os.P_WAIT, args[0], *args, self.env)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnlp')
def test_spawnlp(self):
args = self.create_args()
exitcode = os.spawnlp(os.P_WAIT, args[0], *args)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnlpe')
def test_spawnlpe(self):
args = self.create_args(with_env=True)
exitcode = os.spawnlpe(os.P_WAIT, args[0], *args, self.env)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnv')
def test_spawnv(self):
args = self.create_args()
exitcode = os.spawnv(os.P_WAIT, args[0], args)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnve')
def test_spawnve(self):
args = self.create_args(with_env=True)
exitcode = os.spawnve(os.P_WAIT, args[0], args, self.env)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnvp')
def test_spawnvp(self):
args = self.create_args()
exitcode = os.spawnvp(os.P_WAIT, args[0], args)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnvpe')
def test_spawnvpe(self):
args = self.create_args(with_env=True)
exitcode = os.spawnvpe(os.P_WAIT, args[0], args, self.env)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnv')
def test_nowait(self):
args = self.create_args()
pid = os.spawnv(os.P_NOWAIT, args[0], args)
result = os.waitpid(pid, 0)
self.assertEqual(result[0], pid)
status = result[1]
if hasattr(os, 'WIFEXITED'):
self.assertTrue(os.WIFEXITED(status))
self.assertEqual(os.WEXITSTATUS(status), self.exitcode)
else:
self.assertEqual(status, self.exitcode << 8)
@requires_os_func('spawnve')
def test_spawnve_bytes(self):
# Test bytes handling in parse_arglist and parse_envlist (#28114)
args = self.create_args(with_env=True, use_bytes=True)
exitcode = os.spawnve(os.P_WAIT, args[0], args, self.env)
self.assertEqual(exitcode, self.exitcode)
@requires_os_func('spawnl')
def test_spawnl_noargs(self):
args = self.create_args()
self.assertRaises(ValueError, os.spawnl, os.P_NOWAIT, args[0])
self.assertRaises(ValueError, os.spawnl, os.P_NOWAIT, args[0], '')
@requires_os_func('spawnle')
def test_spawnle_noargs(self):
args = self.create_args()
self.assertRaises(ValueError, os.spawnle, os.P_NOWAIT, args[0], {})
self.assertRaises(ValueError, os.spawnle, os.P_NOWAIT, args[0], '', {})
@requires_os_func('spawnv')
def test_spawnv_noargs(self):
args = self.create_args()
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, args[0], ())
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, args[0], [])
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, args[0], ('',))
self.assertRaises(ValueError, os.spawnv, os.P_NOWAIT, args[0], [''])
@requires_os_func('spawnve')
def test_spawnve_noargs(self):
args = self.create_args()
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, args[0], (), {})
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, args[0], [], {})
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, args[0], ('',), {})
self.assertRaises(ValueError, os.spawnve, os.P_NOWAIT, args[0], [''], {})
def _test_invalid_env(self, spawn):
args = [sys.executable, '-c', 'pass']
# null character in the environment variable name
newenv = os.environ.copy()
newenv["FRUIT\0VEGETABLE"] = "cabbage"
try:
exitcode = spawn(os.P_WAIT, args[0], args, newenv)
except ValueError:
pass
else:
self.assertEqual(exitcode, 127)
# null character in the environment variable value
newenv = os.environ.copy()
newenv["FRUIT"] = "orange\0VEGETABLE=cabbage"
try:
exitcode = spawn(os.P_WAIT, args[0], args, newenv)
except ValueError:
pass
else:
self.assertEqual(exitcode, 127)
# equal character in the environment variable name
newenv = os.environ.copy()
newenv["FRUIT=ORANGE"] = "lemon"
try:
exitcode = spawn(os.P_WAIT, args[0], args, newenv)
except ValueError:
pass
else:
self.assertEqual(exitcode, 127)
# equal character in the environment variable value
filename = support.TESTFN
self.addCleanup(support.unlink, filename)
with open(filename, "w") as fp:
fp.write('import sys, os\n'
'if os.getenv("FRUIT") != "orange=lemon":\n'
' raise AssertionError')
args = [sys.executable, filename]
newenv = os.environ.copy()
newenv["FRUIT"] = "orange=lemon"
exitcode = spawn(os.P_WAIT, args[0], args, newenv)
self.assertEqual(exitcode, 0)
@requires_os_func('spawnve')
def test_spawnve_invalid_env(self):
self._test_invalid_env(os.spawnve)
@requires_os_func('spawnvpe')
def test_spawnvpe_invalid_env(self):
self._test_invalid_env(os.spawnvpe)
# The introduction of this TestCase caused at least two different errors on
# *nix buildbots. Temporarily skip this to let the buildbots move along.
@unittest.skip("Skip due to platform/environment differences on *NIX buildbots")
@unittest.skipUnless(hasattr(os, 'getlogin'), "test needs os.getlogin")
class LoginTests(unittest.TestCase):
def test_getlogin(self):
user_name = os.getlogin()
self.assertNotEqual(len(user_name), 0)
@unittest.skipUnless(hasattr(os, 'getpriority') and hasattr(os, 'setpriority'),
"needs os.getpriority and os.setpriority")
class ProgramPriorityTests(unittest.TestCase):
"""Tests for os.getpriority() and os.setpriority()."""
def test_set_get_priority(self):
base = os.getpriority(os.PRIO_PROCESS, os.getpid())
os.setpriority(os.PRIO_PROCESS, os.getpid(), base + 1)
try:
new_prio = os.getpriority(os.PRIO_PROCESS, os.getpid())
if base >= 19 and new_prio <= 19:
raise unittest.SkipTest("unable to reliably test setpriority "
"at current nice level of %s" % base)
else:
self.assertEqual(new_prio, base + 1)
finally:
try:
os.setpriority(os.PRIO_PROCESS, os.getpid(), base)
except OSError as err:
if err.errno != errno.EACCES:
raise
class SendfileTestServer(asyncore.dispatcher, threading.Thread):
class Handler(asynchat.async_chat):
def __init__(self, conn):
asynchat.async_chat.__init__(self, conn)
self.in_buffer = []
self.closed = False
self.push(b"220 ready\r\n")
def handle_read(self):
data = self.recv(4096)
self.in_buffer.append(data)
def get_data(self):
return b''.join(self.in_buffer)
def handle_close(self):
self.close()
self.closed = True
def handle_error(self):
raise
def __init__(self, address):
threading.Thread.__init__(self)
asyncore.dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.bind(address)
self.listen(5)
self.host, self.port = self.socket.getsockname()[:2]
self.handler_instance = None
self._active = False
self._active_lock = threading.Lock()
# --- public API
@property
def running(self):
return self._active
def start(self):
assert not self.running
self.__flag = threading.Event()
threading.Thread.start(self)
self.__flag.wait()
def stop(self):
assert self.running
self._active = False
self.join()
def wait(self):
# wait for handler connection to be closed, then stop the server
while not getattr(self.handler_instance, "closed", False):
time.sleep(0.001)
self.stop()
# --- internals
def run(self):
self._active = True
self.__flag.set()
while self._active and asyncore.socket_map:
self._active_lock.acquire()
asyncore.loop(timeout=0.001, count=1)
self._active_lock.release()
asyncore.close_all()
def handle_accept(self):
conn, addr = self.accept()
self.handler_instance = self.Handler(conn)
def handle_connect(self):
self.close()
handle_read = handle_connect
def writable(self):
return 0
def handle_error(self):
raise
@unittest.skipUnless(hasattr(os, 'sendfile'), "test needs os.sendfile()")
class TestSendfile(unittest.TestCase):
DATA = b"12345abcde" * 16 * 1024 # 160 KiB
SUPPORT_HEADERS_TRAILERS = not sys.platform.startswith("linux") and \
not sys.platform.startswith("solaris") and \
not sys.platform.startswith("sunos")
requires_headers_trailers = unittest.skipUnless(SUPPORT_HEADERS_TRAILERS,
'requires headers and trailers support')
@classmethod
def setUpClass(cls):
cls.key = support.threading_setup()
create_file(support.TESTFN, cls.DATA)
@classmethod
def tearDownClass(cls):
support.threading_cleanup(*cls.key)
support.unlink(support.TESTFN)
def setUp(self):
self.server = SendfileTestServer((support.HOST, 0))
self.server.start()
self.client = socket.socket()
self.client.connect((self.server.host, self.server.port))
self.client.settimeout(1)
# synchronize by waiting for "220 ready" response
self.client.recv(1024)
self.sockno = self.client.fileno()
self.file = open(support.TESTFN, 'rb')
self.fileno = self.file.fileno()
def tearDown(self):
self.file.close()
self.client.close()
if self.server.running:
self.server.stop()
self.server = None
def sendfile_wrapper(self, sock, file, offset, nbytes, headers=[], trailers=[]):
"""A higher level wrapper representing how an application is
supposed to use sendfile().
"""
while 1:
try:
if self.SUPPORT_HEADERS_TRAILERS:
return os.sendfile(sock, file, offset, nbytes, headers,
trailers)
else:
return os.sendfile(sock, file, offset, nbytes)
except OSError as err:
if err.errno == errno.ECONNRESET:
# disconnected
raise
elif err.errno in (errno.EAGAIN, errno.EBUSY):
# we have to retry send data
continue
else:
raise
def test_send_whole_file(self):
# normal send
total_sent = 0
offset = 0
nbytes = 4096
while total_sent < len(self.DATA):
sent = self.sendfile_wrapper(self.sockno, self.fileno, offset, nbytes)
if sent == 0:
break
offset += sent
total_sent += sent
self.assertTrue(sent <= nbytes)
self.assertEqual(offset, total_sent)
self.assertEqual(total_sent, len(self.DATA))
self.client.shutdown(socket.SHUT_RDWR)
self.client.close()
self.server.wait()
data = self.server.handler_instance.get_data()
self.assertEqual(len(data), len(self.DATA))
self.assertEqual(data, self.DATA)
def test_send_at_certain_offset(self):
# start sending a file at a certain offset
total_sent = 0
offset = len(self.DATA) // 2
must_send = len(self.DATA) - offset
nbytes = 4096
while total_sent < must_send:
sent = self.sendfile_wrapper(self.sockno, self.fileno, offset, nbytes)
if sent == 0:
break
offset += sent
total_sent += sent
self.assertTrue(sent <= nbytes)
self.client.shutdown(socket.SHUT_RDWR)
self.client.close()
self.server.wait()
data = self.server.handler_instance.get_data()
expected = self.DATA[len(self.DATA) // 2:]
self.assertEqual(total_sent, len(expected))
self.assertEqual(len(data), len(expected))
self.assertEqual(data, expected)
def test_offset_overflow(self):
# specify an offset > file size
offset = len(self.DATA) + 4096
try:
sent = os.sendfile(self.sockno, self.fileno, offset, 4096)
except OSError as e:
# Solaris can raise EINVAL if offset >= file length, ignore.
if e.errno != errno.EINVAL:
raise
else:
self.assertEqual(sent, 0)
self.client.shutdown(socket.SHUT_RDWR)
self.client.close()
self.server.wait()
data = self.server.handler_instance.get_data()
self.assertEqual(data, b'')
def test_invalid_offset(self):
with self.assertRaises(OSError) as cm:
os.sendfile(self.sockno, self.fileno, -1, 4096)
self.assertEqual(cm.exception.errno, errno.EINVAL)
def test_keywords(self):
# Keyword arguments should be supported
os.sendfile(out=self.sockno, offset=0, count=4096,
**{'in': self.fileno})
if self.SUPPORT_HEADERS_TRAILERS:
os.sendfile(self.sockno, self.fileno, offset=0, count=4096,
headers=(), trailers=(), flags=0)
# --- headers / trailers tests
@requires_headers_trailers
def test_headers(self):
total_sent = 0
sent = os.sendfile(self.sockno, self.fileno, 0, 4096,
headers=[b"x" * 512])
total_sent += sent
offset = 4096
nbytes = 4096
while 1:
sent = self.sendfile_wrapper(self.sockno, self.fileno,
offset, nbytes)
if sent == 0:
break
total_sent += sent
offset += sent
expected_data = b"x" * 512 + self.DATA
self.assertEqual(total_sent, len(expected_data))
self.client.close()
self.server.wait()
data = self.server.handler_instance.get_data()
self.assertEqual(hash(data), hash(expected_data))
@requires_headers_trailers
def test_trailers(self):
TESTFN2 = support.TESTFN + "2"
file_data = b"abcdef"
self.addCleanup(support.unlink, TESTFN2)
create_file(TESTFN2, file_data)
with open(TESTFN2, 'rb') as f:
os.sendfile(self.sockno, f.fileno(), 0, len(file_data),
trailers=[b"1234"])
self.client.close()
self.server.wait()
data = self.server.handler_instance.get_data()
self.assertEqual(data, b"abcdef1234")
@requires_headers_trailers
@unittest.skipUnless(hasattr(os, 'SF_NODISKIO'),
'test needs os.SF_NODISKIO')
def test_flags(self):
try:
os.sendfile(self.sockno, self.fileno, 0, 4096,
flags=os.SF_NODISKIO)
except OSError as err:
if err.errno not in (errno.EBUSY, errno.EAGAIN):
raise
def supports_extended_attributes():
if not hasattr(os, "setxattr"):
return False
try:
with open(support.TESTFN, "xb", 0) as fp:
try:
os.setxattr(fp.fileno(), b"user.test", b"")
except OSError:
return False
finally:
support.unlink(support.TESTFN)
return True
@unittest.skipUnless(supports_extended_attributes(),
"no non-broken extended attribute support")
# Kernels < 2.6.39 don't respect setxattr flags.
@support.requires_linux_version(2, 6, 39)
class ExtendedAttributeTests(unittest.TestCase):
def _check_xattrs_str(self, s, getxattr, setxattr, removexattr, listxattr, **kwargs):
fn = support.TESTFN
self.addCleanup(support.unlink, fn)
create_file(fn)
with self.assertRaises(OSError) as cm:
getxattr(fn, s("user.test"), **kwargs)
self.assertEqual(cm.exception.errno, errno.ENODATA)
init_xattr = listxattr(fn)
self.assertIsInstance(init_xattr, list)
setxattr(fn, s("user.test"), b"", **kwargs)
xattr = set(init_xattr)
xattr.add("user.test")
self.assertEqual(set(listxattr(fn)), xattr)
self.assertEqual(getxattr(fn, b"user.test", **kwargs), b"")
setxattr(fn, s("user.test"), b"hello", os.XATTR_REPLACE, **kwargs)
self.assertEqual(getxattr(fn, b"user.test", **kwargs), b"hello")
with self.assertRaises(OSError) as cm:
setxattr(fn, s("user.test"), b"bye", os.XATTR_CREATE, **kwargs)
self.assertEqual(cm.exception.errno, errno.EEXIST)
with self.assertRaises(OSError) as cm:
setxattr(fn, s("user.test2"), b"bye", os.XATTR_REPLACE, **kwargs)
self.assertEqual(cm.exception.errno, errno.ENODATA)
setxattr(fn, s("user.test2"), b"foo", os.XATTR_CREATE, **kwargs)
xattr.add("user.test2")
self.assertEqual(set(listxattr(fn)), xattr)
removexattr(fn, s("user.test"), **kwargs)
with self.assertRaises(OSError) as cm:
getxattr(fn, s("user.test"), **kwargs)
self.assertEqual(cm.exception.errno, errno.ENODATA)
xattr.remove("user.test")
self.assertEqual(set(listxattr(fn)), xattr)
self.assertEqual(getxattr(fn, s("user.test2"), **kwargs), b"foo")
setxattr(fn, s("user.test"), b"a"*1024, **kwargs)
self.assertEqual(getxattr(fn, s("user.test"), **kwargs), b"a"*1024)
removexattr(fn, s("user.test"), **kwargs)
many = sorted("user.test{}".format(i) for i in range(100))
for thing in many:
setxattr(fn, thing, b"x", **kwargs)
self.assertEqual(set(listxattr(fn)), set(init_xattr) | set(many))
def _check_xattrs(self, *args, **kwargs):
self._check_xattrs_str(str, *args, **kwargs)
support.unlink(support.TESTFN)
self._check_xattrs_str(os.fsencode, *args, **kwargs)
support.unlink(support.TESTFN)
def test_simple(self):
self._check_xattrs(os.getxattr, os.setxattr, os.removexattr,
os.listxattr)
def test_lpath(self):
self._check_xattrs(os.getxattr, os.setxattr, os.removexattr,
os.listxattr, follow_symlinks=False)
def test_fds(self):
def getxattr(path, *args):
with open(path, "rb") as fp:
return os.getxattr(fp.fileno(), *args)
def setxattr(path, *args):
with open(path, "wb", 0) as fp:
os.setxattr(fp.fileno(), *args)
def removexattr(path, *args):
with open(path, "wb", 0) as fp:
os.removexattr(fp.fileno(), *args)
def listxattr(path, *args):
with open(path, "rb") as fp:
return os.listxattr(fp.fileno(), *args)
self._check_xattrs(getxattr, setxattr, removexattr, listxattr)
@unittest.skipUnless(hasattr(os, 'get_terminal_size'), "requires os.get_terminal_size")
class TermsizeTests(unittest.TestCase):
def test_does_not_crash(self):
"""Check if get_terminal_size() returns a meaningful value.
There's no easy portable way to actually check the size of the
terminal, so let's check if it returns something sensible instead.
"""
try:
size = os.get_terminal_size()
except OSError as e:
if sys.platform == "win32" or e.errno in (errno.EINVAL, errno.ENOTTY):
# Under win32 a generic OSError can be thrown if the
# handle cannot be retrieved
self.skipTest("failed to query terminal size")
raise
self.assertGreaterEqual(size.columns, 0)
self.assertGreaterEqual(size.lines, 0)
def test_stty_match(self):
"""Check if stty returns the same results
stty actually tests stdin, so get_terminal_size is invoked on
stdin explicitly. If stty succeeded, then get_terminal_size()
should work too.
"""
try:
size = subprocess.check_output(['stty', 'size']).decode().split()
except (FileNotFoundError, subprocess.CalledProcessError,
PermissionError):
self.skipTest("stty invocation failed")
expected = (int(size[1]), int(size[0])) # reversed order
try:
actual = os.get_terminal_size(sys.__stdin__.fileno())
except OSError as e:
if sys.platform == "win32" or e.errno in (errno.EINVAL, errno.ENOTTY):
# Under win32 a generic OSError can be thrown if the
# handle cannot be retrieved
self.skipTest("failed to query terminal size")
raise
self.assertEqual(expected, actual)
class OSErrorTests(unittest.TestCase):
def setUp(self):
class Str(str):
pass
self.bytes_filenames = []
self.unicode_filenames = []
if support.TESTFN_UNENCODABLE is not None:
decoded = support.TESTFN_UNENCODABLE
else:
decoded = support.TESTFN
self.unicode_filenames.append(decoded)
self.unicode_filenames.append(Str(decoded))
if support.TESTFN_UNDECODABLE is not None:
encoded = support.TESTFN_UNDECODABLE
else:
encoded = os.fsencode(support.TESTFN)
self.bytes_filenames.append(encoded)
self.bytes_filenames.append(bytearray(encoded))
self.bytes_filenames.append(memoryview(encoded))
self.filenames = self.bytes_filenames + self.unicode_filenames
def test_oserror_filename(self):
funcs = [
(self.filenames, os.chdir,),
(self.filenames, os.chmod, 0o777),
(self.filenames, os.lstat,),
(self.filenames, os.open, os.O_RDONLY),
(self.filenames, os.rmdir,),
(self.filenames, os.stat,),
(self.filenames, os.unlink,),
]
if sys.platform == "win32":
funcs.extend((
(self.bytes_filenames, os.rename, b"dst"),
(self.bytes_filenames, os.replace, b"dst"),
(self.unicode_filenames, os.rename, "dst"),
(self.unicode_filenames, os.replace, "dst"),
(self.unicode_filenames, os.listdir, ),
))
else:
funcs.extend((
(self.filenames, os.listdir,),
(self.filenames, os.rename, "dst"),
(self.filenames, os.replace, "dst"),
))
if hasattr(os, "chown"):
funcs.append((self.filenames, os.chown, 0, 0))
if hasattr(os, "lchown"):
funcs.append((self.filenames, os.lchown, 0, 0))
if hasattr(os, "truncate"):
funcs.append((self.filenames, os.truncate, 0))
if hasattr(os, "chflags"):
funcs.append((self.filenames, os.chflags, 0))
if hasattr(os, "lchflags"):
funcs.append((self.filenames, os.lchflags, 0))
if hasattr(os, "chroot"):
funcs.append((self.filenames, os.chroot,))
if hasattr(os, "link"):
if sys.platform == "win32":
funcs.append((self.bytes_filenames, os.link, b"dst"))
funcs.append((self.unicode_filenames, os.link, "dst"))
else:
funcs.append((self.filenames, os.link, "dst"))
if hasattr(os, "listxattr"):
funcs.extend((
(self.filenames, os.listxattr,),
(self.filenames, os.getxattr, "user.test"),
(self.filenames, os.setxattr, "user.test", b'user'),
(self.filenames, os.removexattr, "user.test"),
))
if hasattr(os, "lchmod"):
funcs.append((self.filenames, os.lchmod, 0o777))
if hasattr(os, "readlink"):
if sys.platform == "win32":
funcs.append((self.unicode_filenames, os.readlink,))
else:
funcs.append((self.filenames, os.readlink,))
for filenames, func, *func_args in funcs:
for name in filenames:
try:
if isinstance(name, (str, bytes)):
func(name, *func_args)
else:
with self.assertWarnsRegex(DeprecationWarning, 'should be'):
func(name, *func_args)
except OSError as err:
self.assertIs(err.filename, name, str(func))
except UnicodeDecodeError:
pass
else:
self.fail("No exception thrown by {}".format(func))
class CPUCountTests(unittest.TestCase):
def test_cpu_count(self):
cpus = os.cpu_count()
if cpus is not None:
self.assertIsInstance(cpus, int)
self.assertGreater(cpus, 0)
else:
self.skipTest("Could not determine the number of CPUs")
class FDInheritanceTests(unittest.TestCase):
def test_get_set_inheritable(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(os.get_inheritable(fd), False)
os.set_inheritable(fd, True)
self.assertEqual(os.get_inheritable(fd), True)
@unittest.skipIf(fcntl is None, "need fcntl")
def test_get_inheritable_cloexec(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(os.get_inheritable(fd), False)
# clear FD_CLOEXEC flag
flags = fcntl.fcntl(fd, fcntl.F_GETFD)
flags &= ~fcntl.FD_CLOEXEC
fcntl.fcntl(fd, fcntl.F_SETFD, flags)
self.assertEqual(os.get_inheritable(fd), True)
@unittest.skipIf(fcntl is None, "need fcntl")
def test_set_inheritable_cloexec(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC,
fcntl.FD_CLOEXEC)
os.set_inheritable(fd, True)
self.assertEqual(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC,
0)
def test_open(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(os.get_inheritable(fd), False)
@unittest.skipUnless(hasattr(os, 'pipe'), "need os.pipe()")
def test_pipe(self):
rfd, wfd = os.pipe()
self.addCleanup(os.close, rfd)
self.addCleanup(os.close, wfd)
self.assertEqual(os.get_inheritable(rfd), False)
self.assertEqual(os.get_inheritable(wfd), False)
def test_dup(self):
fd1 = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd1)
fd2 = os.dup(fd1)
self.addCleanup(os.close, fd2)
self.assertEqual(os.get_inheritable(fd2), False)
@unittest.skipUnless(hasattr(os, 'dup2'), "need os.dup2()")
def test_dup2(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
# inheritable by default
fd2 = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd2)
self.assertEqual(os.dup2(fd, fd2), fd2)
self.assertTrue(os.get_inheritable(fd2))
# force non-inheritable
fd3 = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd3)
self.assertEqual(os.dup2(fd, fd3, inheritable=False), fd3)
self.assertFalse(os.get_inheritable(fd3))
@unittest.skipUnless(hasattr(os, 'openpty'), "need os.openpty()")
def test_openpty(self):
master_fd, slave_fd = os.openpty()
self.addCleanup(os.close, master_fd)
self.addCleanup(os.close, slave_fd)
self.assertEqual(os.get_inheritable(master_fd), False)
self.assertEqual(os.get_inheritable(slave_fd), False)
class PathTConverterTests(unittest.TestCase):
# tuples of (function name, allows fd arguments, additional arguments to
# function, cleanup function)
functions = [
('stat', True, (), None),
('lstat', False, (), None),
('access', False, (os.F_OK,), None),
('chflags', False, (0,), None),
('lchflags', False, (0,), None),
('open', False, (0,), getattr(os, 'close', None)),
]
def test_path_t_converter(self):
str_filename = support.TESTFN
if os.name == 'nt':
bytes_fspath = bytes_filename = None
else:
bytes_filename = support.TESTFN.encode('ascii')
bytes_fspath = FakePath(bytes_filename)
fd = os.open(FakePath(str_filename), os.O_WRONLY|os.O_CREAT)
self.addCleanup(support.unlink, support.TESTFN)
self.addCleanup(os.close, fd)
int_fspath = FakePath(fd)
str_fspath = FakePath(str_filename)
for name, allow_fd, extra_args, cleanup_fn in self.functions:
with self.subTest(name=name):
try:
fn = getattr(os, name)
except AttributeError:
continue
for path in (str_filename, bytes_filename, str_fspath,
bytes_fspath):
if path is None:
continue
with self.subTest(name=name, path=path):
result = fn(path, *extra_args)
if cleanup_fn is not None:
cleanup_fn(result)
with self.assertRaisesRegex(
TypeError, 'should be string, bytes'):
fn(int_fspath, *extra_args)
if allow_fd:
result = fn(fd, *extra_args) # should not fail
if cleanup_fn is not None:
cleanup_fn(result)
else:
with self.assertRaisesRegex(
TypeError,
'os.PathLike'):
fn(fd, *extra_args)
@unittest.skipUnless(hasattr(os, 'get_blocking'),
'needs os.get_blocking() and os.set_blocking()')
class BlockingTests(unittest.TestCase):
def test_blocking(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(os.get_blocking(fd), True)
os.set_blocking(fd, False)
self.assertEqual(os.get_blocking(fd), False)
os.set_blocking(fd, True)
self.assertEqual(os.get_blocking(fd), True)
class ExportsTests(unittest.TestCase):
def test_os_all(self):
self.assertIn('open', os.__all__)
self.assertIn('walk', os.__all__)
class TestScandir(unittest.TestCase):
check_no_resource_warning = support.check_no_resource_warning
def setUp(self):
self.path = os.path.realpath(support.TESTFN)
self.bytes_path = os.fsencode(self.path)
self.addCleanup(support.rmtree, self.path)
os.mkdir(self.path)
def create_file(self, name="file.txt"):
path = self.bytes_path if isinstance(name, bytes) else self.path
filename = os.path.join(path, name)
create_file(filename, b'python')
return filename
def get_entries(self, names):
entries = dict((entry.name, entry)
for entry in os.scandir(self.path))
self.assertEqual(sorted(entries.keys()), names)
return entries
def assert_stat_equal(self, stat1, stat2, skip_fields):
if skip_fields:
for attr in dir(stat1):
if not attr.startswith("st_"):
continue
if attr in ("st_dev", "st_ino", "st_nlink"):
continue
self.assertEqual(getattr(stat1, attr),
getattr(stat2, attr),
(stat1, stat2, attr))
else:
self.assertEqual(stat1, stat2)
def check_entry(self, entry, name, is_dir, is_file, is_symlink):
self.assertIsInstance(entry, os.DirEntry)
self.assertEqual(entry.name, name)
self.assertEqual(entry.path, os.path.join(self.path, name))
self.assertEqual(entry.inode(),
os.stat(entry.path, follow_symlinks=False).st_ino)
entry_stat = os.stat(entry.path)
self.assertEqual(entry.is_dir(),
stat.S_ISDIR(entry_stat.st_mode))
self.assertEqual(entry.is_file(),
stat.S_ISREG(entry_stat.st_mode))
self.assertEqual(entry.is_symlink(),
os.path.islink(entry.path))
entry_lstat = os.stat(entry.path, follow_symlinks=False)
self.assertEqual(entry.is_dir(follow_symlinks=False),
stat.S_ISDIR(entry_lstat.st_mode))
self.assertEqual(entry.is_file(follow_symlinks=False),
stat.S_ISREG(entry_lstat.st_mode))
self.assert_stat_equal(entry.stat(),
entry_stat,
os.name == 'nt' and not is_symlink)
self.assert_stat_equal(entry.stat(follow_symlinks=False),
entry_lstat,
os.name == 'nt')
def test_attributes(self):
link = hasattr(os, 'link')
symlink = support.can_symlink()
dirname = os.path.join(self.path, "dir")
os.mkdir(dirname)
filename = self.create_file("file.txt")
if link:
try:
os.link(filename, os.path.join(self.path, "link_file.txt"))
except PermissionError as e:
self.skipTest('os.link(): %s' % e)
if symlink:
os.symlink(dirname, os.path.join(self.path, "symlink_dir"),
target_is_directory=True)
os.symlink(filename, os.path.join(self.path, "symlink_file.txt"))
names = ['dir', 'file.txt']
if link:
names.append('link_file.txt')
if symlink:
names.extend(('symlink_dir', 'symlink_file.txt'))
entries = self.get_entries(names)
entry = entries['dir']
self.check_entry(entry, 'dir', True, False, False)
entry = entries['file.txt']
self.check_entry(entry, 'file.txt', False, True, False)
if link:
entry = entries['link_file.txt']
self.check_entry(entry, 'link_file.txt', False, True, False)
if symlink:
entry = entries['symlink_dir']
self.check_entry(entry, 'symlink_dir', True, False, True)
entry = entries['symlink_file.txt']
self.check_entry(entry, 'symlink_file.txt', False, True, True)
def get_entry(self, name):
path = self.bytes_path if isinstance(name, bytes) else self.path
entries = list(os.scandir(path))
self.assertEqual(len(entries), 1)
entry = entries[0]
self.assertEqual(entry.name, name)
return entry
def create_file_entry(self, name='file.txt'):
filename = self.create_file(name=name)
return self.get_entry(os.path.basename(filename))
def test_current_directory(self):
filename = self.create_file()
old_dir = os.getcwd()
try:
os.chdir(self.path)
# call scandir() without parameter: it must list the content
# of the current directory
entries = dict((entry.name, entry) for entry in os.scandir())
self.assertEqual(sorted(entries.keys()),
[os.path.basename(filename)])
finally:
os.chdir(old_dir)
def test_repr(self):
entry = self.create_file_entry()
self.assertEqual(repr(entry), "<DirEntry 'file.txt'>")
def test_fspath_protocol(self):
entry = self.create_file_entry()
self.assertEqual(os.fspath(entry), os.path.join(self.path, 'file.txt'))
def test_fspath_protocol_bytes(self):
bytes_filename = os.fsencode('bytesfile.txt')
bytes_entry = self.create_file_entry(name=bytes_filename)
fspath = os.fspath(bytes_entry)
self.assertIsInstance(fspath, bytes)
self.assertEqual(fspath,
os.path.join(os.fsencode(self.path),bytes_filename))
def test_removed_dir(self):
path = os.path.join(self.path, 'dir')
os.mkdir(path)
entry = self.get_entry('dir')
os.rmdir(path)
# On POSIX, is_dir() result depends if scandir() filled d_type or not
if os.name == 'nt':
self.assertTrue(entry.is_dir())
self.assertFalse(entry.is_file())
self.assertFalse(entry.is_symlink())
if os.name == 'nt':
self.assertRaises(FileNotFoundError, entry.inode)
# don't fail
entry.stat()
entry.stat(follow_symlinks=False)
else:
self.assertGreater(entry.inode(), 0)
self.assertRaises(FileNotFoundError, entry.stat)
self.assertRaises(FileNotFoundError, entry.stat, follow_symlinks=False)
def test_removed_file(self):
entry = self.create_file_entry()
os.unlink(entry.path)
self.assertFalse(entry.is_dir())
# On POSIX, is_dir() result depends if scandir() filled d_type or not
if os.name == 'nt':
self.assertTrue(entry.is_file())
self.assertFalse(entry.is_symlink())
if os.name == 'nt':
self.assertRaises(FileNotFoundError, entry.inode)
# don't fail
entry.stat()
entry.stat(follow_symlinks=False)
else:
self.assertGreater(entry.inode(), 0)
self.assertRaises(FileNotFoundError, entry.stat)
self.assertRaises(FileNotFoundError, entry.stat, follow_symlinks=False)
def test_broken_symlink(self):
if not support.can_symlink():
return self.skipTest('cannot create symbolic link')
filename = self.create_file("file.txt")
os.symlink(filename,
os.path.join(self.path, "symlink.txt"))
entries = self.get_entries(['file.txt', 'symlink.txt'])
entry = entries['symlink.txt']
os.unlink(filename)
self.assertGreater(entry.inode(), 0)
self.assertFalse(entry.is_dir())
self.assertFalse(entry.is_file()) # broken symlink returns False
self.assertFalse(entry.is_dir(follow_symlinks=False))
self.assertFalse(entry.is_file(follow_symlinks=False))
self.assertTrue(entry.is_symlink())
self.assertRaises(FileNotFoundError, entry.stat)
# don't fail
entry.stat(follow_symlinks=False)
def test_bytes(self):
self.create_file("file.txt")
path_bytes = os.fsencode(self.path)
entries = list(os.scandir(path_bytes))
self.assertEqual(len(entries), 1, entries)
entry = entries[0]
self.assertEqual(entry.name, b'file.txt')
self.assertEqual(entry.path,
os.fsencode(os.path.join(self.path, 'file.txt')))
def test_bytes_like(self):
self.create_file("file.txt")
for cls in bytearray, memoryview:
path_bytes = cls(os.fsencode(self.path))
with self.assertWarns(DeprecationWarning):
entries = list(os.scandir(path_bytes))
self.assertEqual(len(entries), 1, entries)
entry = entries[0]
self.assertEqual(entry.name, b'file.txt')
self.assertEqual(entry.path,
os.fsencode(os.path.join(self.path, 'file.txt')))
self.assertIs(type(entry.name), bytes)
self.assertIs(type(entry.path), bytes)
@unittest.skipUnless(os.listdir in os.supports_fd,
'fd support for listdir required for this test.')
def test_fd(self):
self.assertIn(os.scandir, os.supports_fd)
self.create_file('file.txt')
expected_names = ['file.txt']
if support.can_symlink():
os.symlink('file.txt', os.path.join(self.path, 'link'))
expected_names.append('link')
fd = os.open(self.path, os.O_RDONLY)
try:
with os.scandir(fd) as it:
entries = list(it)
names = [entry.name for entry in entries]
self.assertEqual(sorted(names), expected_names)
self.assertEqual(names, os.listdir(fd))
for entry in entries:
self.assertEqual(entry.path, entry.name)
self.assertEqual(os.fspath(entry), entry.name)
self.assertEqual(entry.is_symlink(), entry.name == 'link')
if os.stat in os.supports_dir_fd:
st = os.stat(entry.name, dir_fd=fd)
self.assertEqual(entry.stat(), st)
st = os.stat(entry.name, dir_fd=fd, follow_symlinks=False)
self.assertEqual(entry.stat(follow_symlinks=False), st)
finally:
os.close(fd)
def test_empty_path(self):
self.assertRaises(FileNotFoundError, os.scandir, '')
def test_consume_iterator_twice(self):
self.create_file("file.txt")
iterator = os.scandir(self.path)
entries = list(iterator)
self.assertEqual(len(entries), 1, entries)
# check than consuming the iterator twice doesn't raise exception
entries2 = list(iterator)
self.assertEqual(len(entries2), 0, entries2)
def test_bad_path_type(self):
for obj in [1.234, {}, []]:
self.assertRaises(TypeError, os.scandir, obj)
def test_close(self):
self.create_file("file.txt")
self.create_file("file2.txt")
iterator = os.scandir(self.path)
next(iterator)
iterator.close()
# multiple closes
iterator.close()
with self.check_no_resource_warning():
del iterator
def test_context_manager(self):
self.create_file("file.txt")
self.create_file("file2.txt")
with os.scandir(self.path) as iterator:
next(iterator)
with self.check_no_resource_warning():
del iterator
def test_context_manager_close(self):
self.create_file("file.txt")
self.create_file("file2.txt")
with os.scandir(self.path) as iterator:
next(iterator)
iterator.close()
def test_context_manager_exception(self):
self.create_file("file.txt")
self.create_file("file2.txt")
with self.assertRaises(ZeroDivisionError):
with os.scandir(self.path) as iterator:
next(iterator)
1/0
with self.check_no_resource_warning():
del iterator
def test_resource_warning(self):
self.create_file("file.txt")
self.create_file("file2.txt")
iterator = os.scandir(self.path)
next(iterator)
with self.assertWarns(ResourceWarning):
del iterator
support.gc_collect()
# exhausted iterator
iterator = os.scandir(self.path)
list(iterator)
with self.check_no_resource_warning():
del iterator
class TestPEP519(unittest.TestCase):
# Abstracted so it can be overridden to test pure Python implementation
# if a C version is provided.
fspath = staticmethod(os.fspath)
def test_return_bytes(self):
for b in b'hello', b'goodbye', b'some/path/and/file':
self.assertEqual(b, self.fspath(b))
def test_return_string(self):
for s in 'hello', 'goodbye', 'some/path/and/file':
self.assertEqual(s, self.fspath(s))
def test_fsencode_fsdecode(self):
for p in "path/like/object", b"path/like/object":
pathlike = FakePath(p)
self.assertEqual(p, self.fspath(pathlike))
self.assertEqual(b"path/like/object", os.fsencode(pathlike))
self.assertEqual("path/like/object", os.fsdecode(pathlike))
def test_pathlike(self):
self.assertEqual('#feelthegil', self.fspath(FakePath('#feelthegil')))
self.assertTrue(issubclass(FakePath, os.PathLike))
self.assertTrue(isinstance(FakePath('x'), os.PathLike))
def test_garbage_in_exception_out(self):
vapor = type('blah', (), {})
for o in int, type, os, vapor():
self.assertRaises(TypeError, self.fspath, o)
def test_argument_required(self):
self.assertRaises(TypeError, self.fspath)
def test_bad_pathlike(self):
# __fspath__ returns a value other than str or bytes.
self.assertRaises(TypeError, self.fspath, FakePath(42))
# __fspath__ attribute that is not callable.
c = type('foo', (), {})
c.__fspath__ = 1
self.assertRaises(TypeError, self.fspath, c())
# __fspath__ raises an exception.
self.assertRaises(ZeroDivisionError, self.fspath,
FakePath(ZeroDivisionError()))
class TimesTests(unittest.TestCase):
def test_times(self):
times = os.times()
self.assertIsInstance(times, os.times_result)
for field in ('user', 'system', 'children_user', 'children_system',
'elapsed'):
value = getattr(times, field)
self.assertIsInstance(value, float)
if os.name == 'nt':
self.assertEqual(times.children_user, 0)
self.assertEqual(times.children_system, 0)
self.assertEqual(times.elapsed, 0)
# Only test if the C version is provided, otherwise TestPEP519 already tested
# the pure Python implementation.
if hasattr(os, "_fspath"):
class TestPEP519PurePython(TestPEP519):
"""Explicitly test the pure Python implementation of os.fspath()."""
fspath = staticmethod(os._fspath)
if __name__ == "__main__":
unittest.main()
|