/usr/lib/python3/dist-packages/h5py/tests/old/test_file.py is in python3-h5py 2.6.0-1.
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 | # This file is part of h5py, a Python interface to the HDF5 library.
#
# http://www.h5py.org
#
# Copyright 2008-2013 Andrew Collette and contributors
#
# License: Standard 3-clause BSD; see "license.txt" for full license terms
# and contributor agreement.
"""
File object test module.
Tests all aspects of File objects, including their creation.
"""
from __future__ import absolute_import, with_statement
import os, stat
import six
from .common import ut, TestCase, unicode_filenames
from h5py.highlevel import File
import h5py
mpi = h5py.get_config().mpi
class TestFileOpen(TestCase):
"""
Feature: Opening files with Python-style modes.
"""
def test_default(self):
""" Default semantics in the presence or absence of a file """
fname = self.mktemp()
# No existing file; create a new file and open RW
with File(fname) as f:
self.assertTrue(f)
self.assertEqual(f.mode, 'r+')
# Existing readonly file; open read-only
os.chmod(fname, stat.S_IREAD)
try:
with File(fname) as f:
self.assertTrue(f)
#self.assertEqual(f.mode, 'r')
finally:
os.chmod(fname, stat.S_IWRITE)
# File exists but is not HDF5; raise IOError
with open(fname, 'wb') as f:
f.write(b'\x00')
with self.assertRaises(IOError):
File(fname)
def test_create(self):
""" Mode 'w' opens file in overwrite mode """
fname = self.mktemp()
fid = File(fname, 'w')
self.assertTrue(fid)
fid.create_group('foo')
fid.close()
fid = File(fname, 'w')
self.assertNotIn('foo', fid)
fid.close()
def test_create_exclusive(self):
""" Mode 'w-' opens file in exclusive mode """
fname = self.mktemp()
fid = File(fname, 'w-')
self.assert_(fid)
fid.close()
with self.assertRaises(IOError):
File(fname, 'w-')
def test_append(self):
""" Mode 'a' opens file in append/readwrite mode, creating if necessary """
fname = self.mktemp()
fid = File(fname, 'a')
try:
self.assert_(fid)
fid.create_group('foo')
self.assert_('foo' in fid)
finally:
fid.close()
fid = File(fname, 'a')
try:
self.assert_('foo' in fid)
fid.create_group('bar')
self.assert_('bar' in fid)
finally:
fid.close()
def test_readonly(self):
""" Mode 'r' opens file in readonly mode """
fname = self.mktemp()
fid = File(fname, 'w')
fid.close()
self.assert_(not fid)
fid = File(fname, 'r')
self.assert_(fid)
with self.assertRaises(ValueError):
fid.create_group('foo')
fid.close()
def test_readwrite(self):
""" Mode 'r+' opens existing file in readwrite mode """
fname = self.mktemp()
fid = File(fname, 'w')
fid.create_group('foo')
fid.close()
fid = File(fname, 'r+')
self.assert_('foo' in fid)
fid.create_group('bar')
self.assert_('bar' in fid)
fid.close()
def test_nonexistent_file(self):
""" Modes 'r' and 'r+' do not create files """
fname = self.mktemp()
with self.assertRaises(IOError):
File(fname, 'r')
with self.assertRaises(IOError):
File(fname, 'r+')
def test_invalid_mode(self):
""" Invalid modes raise ValueError """
with self.assertRaises(ValueError):
File(self.mktemp(), 'mongoose')
class TestModes(TestCase):
"""
Feature: File mode can be retrieved via file.mode
"""
def test_mode_attr(self):
""" Mode equivalent can be retrieved via property """
fname = self.mktemp()
with File(fname, 'w') as f:
self.assertEqual(f.mode, 'r+')
with File(fname, 'r') as f:
self.assertEqual(f.mode, 'r')
def test_mode_external(self):
""" Mode property works for files opened via external links
Issue 190.
"""
fname1 = self.mktemp()
fname2 = self.mktemp()
f1 = File(fname1,'w')
f1.close()
f2 = File(fname2,'w')
try:
f2['External'] = h5py.ExternalLink(fname1, '/')
f3 = f2['External'].file
self.assertEqual(f3.mode, 'r+')
finally:
f2.close()
f3.close()
f2 = File(fname2,'r')
try:
f3 = f2['External'].file
self.assertEqual(f3.mode, 'r')
finally:
f2.close()
f3.close()
class TestDrivers(TestCase):
"""
Feature: Files can be opened with low-level HDF5 drivers
"""
@ut.skipUnless(os.name == 'posix', "Stdio driver is supported on posix")
def test_stdio(self):
""" Stdio driver is supported on posix """
fid = File(self.mktemp(), 'w', driver='stdio')
self.assertTrue(fid)
self.assertEqual(fid.driver, 'stdio')
fid.close()
@ut.skipUnless(os.name == 'posix', "Sec2 driver is supported on posix")
def test_sec2(self):
""" Sec2 driver is supported on posix """
fid = File(self.mktemp(), 'w', driver='sec2')
self.assert_(fid)
self.assertEqual(fid.driver, 'sec2')
fid.close()
def test_core(self):
""" Core driver is supported (no backing store) """
fname = self.mktemp()
fid = File(fname, 'w', driver='core', backing_store=False)
self.assert_(fid)
self.assertEqual(fid.driver, 'core')
fid.close()
self.assertFalse(os.path.exists(fname))
def test_backing(self):
""" Core driver saves to file when backing store used """
fname = self.mktemp()
fid = File(fname, 'w', driver='core', backing_store=True)
fid.create_group('foo')
fid.close()
fid = File(fname, 'r')
self.assert_('foo' in fid)
fid.close()
def test_readonly(self):
""" Core driver can be used to open existing files """
fname = self.mktemp()
fid = File(fname, 'w')
fid.create_group('foo')
fid.close()
fid = File(fname, 'r', driver='core')
self.assert_(fid)
self.assert_('foo' in fid)
with self.assertRaises(ValueError):
fid.create_group('bar')
fid.close()
def test_blocksize(self):
""" Core driver supports variable block size """
fname = self.mktemp()
fid = File(fname, 'w', driver='core', block_size=1024,
backing_store=False)
self.assert_(fid)
fid.close()
@ut.skipUnless(mpi, "Parallel HDF5 is required for MPIO driver test")
def test_mpio(self):
""" MPIO driver and options """
from mpi4py import MPI
fname = self.mktemp()
with File(fname, 'w', driver='mpio', comm=MPI.COMM_WORLD) as f:
self.assertTrue(f)
self.assertEqual(f.driver, 'mpio')
@ut.skipUnless(mpi, "Parallel HDF5 required")
def test_mpi_atomic(self):
""" Enable atomic mode for MPIO driver """
from mpi4py import MPI
fname = self.mktemp()
with File(fname, 'w', driver='mpio', comm=MPI.COMM_WORLD) as f:
self.assertFalse(f.atomic)
f.atomic = True
self.assertTrue(f.atomic)
#TODO: family driver tests
class TestLibver(TestCase):
"""
Feature: File format compatibility bounds can be specified when
opening a file.
"""
def test_single(self):
""" Opening with single libver arg """
f = File(self.mktemp(), 'w', libver='latest')
self.assertEqual(f.libver, ('latest','latest'))
f.close()
def test_multiple(self):
""" Opening with two libver args """
f = File(self.mktemp(), 'w', libver=('earliest','latest'))
self.assertEqual(f.libver, ('earliest', 'latest'))
f.close()
def test_none(self):
""" Omitting libver arg results in maximum compatibility """
f = File(self.mktemp(), 'w')
self.assertEqual(f.libver, ('earliest', 'latest'))
f.close()
class TestUserblock(TestCase):
"""
Feature: Files can be create with user blocks
"""
def test_create_blocksize(self):
""" User blocks created with w, w-, x and properties work correctly """
f = File(self.mktemp(),'w-', userblock_size=512)
try:
self.assertEqual(f.userblock_size, 512)
finally:
f.close()
f = File(self.mktemp(),'x', userblock_size=512)
try:
self.assertEqual(f.userblock_size, 512)
finally:
f.close()
f = File(self.mktemp(),'w', userblock_size=512)
try:
self.assertEqual(f.userblock_size, 512)
finally:
f.close()
def test_write_only(self):
""" User block only allowed for write """
name = self.mktemp()
f = File(name, 'w')
f.close()
with self.assertRaises(ValueError):
f = h5py.File(name, 'r', userblock_size=512)
with self.assertRaises(ValueError):
f = h5py.File(name, 'r+', userblock_size=512)
def test_match_existing(self):
""" User block size must match that of file when opening for append """
name = self.mktemp()
f = File(name, 'w', userblock_size=512)
f.close()
with self.assertRaises(ValueError):
f = File(name, 'a', userblock_size=1024)
f = File(name, 'a', userblock_size=512)
try:
self.assertEqual(f.userblock_size, 512)
finally:
f.close()
def test_power_of_two(self):
""" User block size must be a power of 2 and at least 512 """
name = self.mktemp()
with self.assertRaises(ValueError):
f = File(name, 'w', userblock_size=128)
with self.assertRaises(ValueError):
f = File(name, 'w', userblock_size=513)
with self.assertRaises(ValueError):
f = File(name, 'w', userblock_size=1023)
def test_write_block(self):
""" Test that writing to a user block does not destroy the file """
name = self.mktemp()
f = File(name, 'w', userblock_size=512)
f.create_group("Foobar")
f.close()
pyfile = open(name, 'r+b')
try:
pyfile.write(b'X'*512)
finally:
pyfile.close()
f = h5py.File(name, 'r')
try:
self.assert_("Foobar" in f)
finally:
f.close()
pyfile = open(name, 'rb')
try:
self.assertEqual(pyfile.read(512), b'X'*512)
finally:
pyfile.close()
class TestContextManager(TestCase):
"""
Feature: File objects can be used as context managers
"""
def test_context_manager(self):
""" File objects can be used in with statements """
with File(self.mktemp(), 'w') as fid:
self.assertTrue(fid)
self.assertTrue(not fid)
class TestUnicode(TestCase):
"""
Feature: Unicode filenames are supported
"""
@ut.skipIf(not unicode_filenames, "Filesystem unicode support required")
def test_unicode(self):
""" Unicode filenames can be used, and retrieved properly via .filename
"""
fname = self.mktemp(prefix = six.unichr(0x201a))
fid = File(fname, 'w')
try:
self.assertEqual(fid.filename, fname)
self.assertIsInstance(fid.filename, six.text_type)
finally:
fid.close()
class TestFileProperty(TestCase):
"""
Feature: A File object can be retrieved from any child object,
via the .file property
"""
def test_property(self):
""" File object can be retrieved from subgroup """
fname = self.mktemp()
hfile = File(fname, 'w')
try:
hfile2 = hfile['/'].file
self.assertEqual(hfile, hfile2)
finally:
hfile.close()
def test_close(self):
""" All retrieved File objects are closed at the same time """
fname = self.mktemp()
hfile = File(fname, 'w')
grp = hfile.create_group('foo')
hfile2 = grp.file
hfile3 = hfile['/'].file
hfile2.close()
self.assertFalse(hfile)
self.assertFalse(hfile2)
self.assertFalse(hfile3)
def test_mode(self):
""" Retrieved File objects have a meaningful mode attribute """
hfile = File(self.mktemp(),'w')
try:
grp = hfile.create_group('foo')
self.assertEqual(grp.file.mode, hfile.mode)
finally:
hfile.close()
class TestClose(TestCase):
"""
Feature: Files can be closed
"""
def test_close(self):
""" Close file via .close method """
fid = File(self.mktemp())
self.assert_(fid)
fid.close()
self.assert_(not fid)
def test_closed_file(self):
""" Trying to modify closed file raises ValueError """
fid = File(self.mktemp(), 'w')
fid.close()
with self.assertRaises(ValueError):
fid.create_group('foo')
class TestFlush(TestCase):
"""
Feature: Files can be flushed
"""
def test_flush(self):
""" Flush via .flush method """
fid = File(self.mktemp(), 'w')
fid.flush()
fid.close()
class TestRepr(TestCase):
"""
Feature: File objects provide a helpful __repr__ string
"""
def test_repr(self):
""" __repr__ behaves itself when files are open and closed """
fid = File(self.mktemp())
self.assertIsInstance(repr(fid), six.string_types)
fid.close()
self.assertIsInstance(repr(fid), six.string_types)
class TestFilename(TestCase):
"""
Feature: The name of a File object can be retrieved via .filename
"""
def test_filename(self):
""" .filename behaves properly for string data """
fname = self.mktemp()
fid = File(fname, 'w')
try:
self.assertEqual(fid.filename, fname)
self.assertIsInstance(fid.filename, six.text_type)
finally:
fid.close()
class TestBackwardsCompat(TestCase):
"""
Feauture: Deprecated attributes are included to support 1.3 code
"""
def test_fid(self):
""" File objects provide a .fid attribute aliased to the file ID """
with File(self.mktemp(), 'w') as hfile:
self.assertIs(hfile.fid, hfile.id)
class TestCloseInvalidatesOpenObjectIDs(TestCase):
"""
Ensure that closing a file invalidates object IDs, as appropriate
"""
def test_close(self):
""" Closing a file invalidates any of the file's open objects """
with File(self.mktemp(), 'w') as f1:
g1 = f1.create_group('foo')
self.assertTrue(bool(f1.id))
self.assertTrue(bool(g1.id))
f1.close()
self.assertFalse(bool(f1.id))
self.assertFalse(bool(g1.id))
with File(self.mktemp(), 'w') as f2:
g2 = f2.create_group('foo')
self.assertTrue(bool(f2.id))
self.assertTrue(bool(g2.id))
self.assertFalse(bool(f1.id))
self.assertFalse(bool(g1.id))
|