/usr/lib/python3.7/test/test_winconsoleio.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 | '''Tests for WindowsConsoleIO
'''
import io
import os
import sys
import tempfile
import unittest
from test import support
if sys.platform != 'win32':
raise unittest.SkipTest("test only relevant on win32")
from _testconsole import write_input
ConIO = io._WindowsConsoleIO
class WindowsConsoleIOTests(unittest.TestCase):
def test_abc(self):
self.assertTrue(issubclass(ConIO, io.RawIOBase))
self.assertFalse(issubclass(ConIO, io.BufferedIOBase))
self.assertFalse(issubclass(ConIO, io.TextIOBase))
def test_open_fd(self):
self.assertRaisesRegex(ValueError,
"negative file descriptor", ConIO, -1)
fd, _ = tempfile.mkstemp()
try:
# Windows 10: "Cannot open non-console file"
# Earlier: "Cannot open console output buffer for reading"
self.assertRaisesRegex(ValueError,
"Cannot open (console|non-console file)", ConIO, fd)
finally:
os.close(fd)
try:
f = ConIO(0)
except ValueError:
# cannot open console because it's not a real console
pass
else:
self.assertTrue(f.readable())
self.assertFalse(f.writable())
self.assertEqual(0, f.fileno())
f.close() # multiple close should not crash
f.close()
try:
f = ConIO(1, 'w')
except ValueError:
# cannot open console because it's not a real console
pass
else:
self.assertFalse(f.readable())
self.assertTrue(f.writable())
self.assertEqual(1, f.fileno())
f.close()
f.close()
try:
f = ConIO(2, 'w')
except ValueError:
# cannot open console because it's not a real console
pass
else:
self.assertFalse(f.readable())
self.assertTrue(f.writable())
self.assertEqual(2, f.fileno())
f.close()
f.close()
def test_open_name(self):
self.assertRaises(ValueError, ConIO, sys.executable)
f = ConIO("CON")
self.assertTrue(f.readable())
self.assertFalse(f.writable())
self.assertIsNotNone(f.fileno())
f.close() # multiple close should not crash
f.close()
f = ConIO('CONIN$')
self.assertTrue(f.readable())
self.assertFalse(f.writable())
self.assertIsNotNone(f.fileno())
f.close()
f.close()
f = ConIO('CONOUT$', 'w')
self.assertFalse(f.readable())
self.assertTrue(f.writable())
self.assertIsNotNone(f.fileno())
f.close()
f.close()
f = open('C:/con', 'rb', buffering=0)
self.assertIsInstance(f, ConIO)
f.close()
@unittest.skipIf(sys.getwindowsversion()[:2] <= (6, 1),
"test does not work on Windows 7 and earlier")
def test_conin_conout_names(self):
f = open(r'\\.\conin$', 'rb', buffering=0)
self.assertIsInstance(f, ConIO)
f.close()
f = open('//?/conout$', 'wb', buffering=0)
self.assertIsInstance(f, ConIO)
f.close()
def test_conout_path(self):
temp_path = tempfile.mkdtemp()
self.addCleanup(support.rmtree, temp_path)
conout_path = os.path.join(temp_path, 'CONOUT$')
with open(conout_path, 'wb', buffering=0) as f:
if sys.getwindowsversion()[:2] > (6, 1):
self.assertIsInstance(f, ConIO)
else:
self.assertNotIsInstance(f, ConIO)
def test_write_empty_data(self):
with ConIO('CONOUT$', 'w') as f:
self.assertEqual(f.write(b''), 0)
def assertStdinRoundTrip(self, text):
stdin = open('CONIN$', 'r')
old_stdin = sys.stdin
try:
sys.stdin = stdin
write_input(
stdin.buffer.raw,
(text + '\r\n').encode('utf-16-le', 'surrogatepass')
)
actual = input()
finally:
sys.stdin = old_stdin
self.assertEqual(actual, text)
def test_input(self):
# ASCII
self.assertStdinRoundTrip('abc123')
# Non-ASCII
self.assertStdinRoundTrip('ϼўТλФЙ')
# Combining characters
self.assertStdinRoundTrip('A͏B ﬖ̳AA̝')
# Non-BMP
self.assertStdinRoundTrip('\U00100000\U0010ffff\U0010fffd')
def test_partial_reads(self):
# Test that reading less than 1 full character works when stdin
# contains multibyte UTF-8 sequences
source = 'ϼўТλФЙ\r\n'.encode('utf-16-le')
expected = 'ϼўТλФЙ\r\n'.encode('utf-8')
for read_count in range(1, 16):
with open('CONIN$', 'rb', buffering=0) as stdin:
write_input(stdin, source)
actual = b''
while not actual.endswith(b'\n'):
b = stdin.read(read_count)
actual += b
self.assertEqual(actual, expected, 'stdin.read({})'.format(read_count))
def test_partial_surrogate_reads(self):
# Test that reading less than 1 full character works when stdin
# contains surrogate pairs that cannot be decoded to UTF-8 without
# reading an extra character.
source = '\U00101FFF\U00101001\r\n'.encode('utf-16-le')
expected = '\U00101FFF\U00101001\r\n'.encode('utf-8')
for read_count in range(1, 16):
with open('CONIN$', 'rb', buffering=0) as stdin:
write_input(stdin, source)
actual = b''
while not actual.endswith(b'\n'):
b = stdin.read(read_count)
actual += b
self.assertEqual(actual, expected, 'stdin.read({})'.format(read_count))
def test_ctrl_z(self):
with open('CONIN$', 'rb', buffering=0) as stdin:
source = '\xC4\x1A\r\n'.encode('utf-16-le')
expected = '\xC4'.encode('utf-8')
write_input(stdin, source)
a, b = stdin.read(1), stdin.readall()
self.assertEqual(expected[0:1], a)
self.assertEqual(expected[1:], b)
if __name__ == "__main__":
unittest.main()
|