관리-도구

편집 파일: fake_filesystem_unittest_test.py

# Copyright 2014 Altera Corporation. All Rights Reserved. # Copyright 2015-2017 John McGehee # Author: John McGehee # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """ Test the :py:class`pyfakefs.fake_filesystem_unittest.TestCase` base class. """ import glob import io import multiprocessing import os import pathlib import runpy import shutil import sys import tempfile import unittest import warnings from pathlib import Path from unittest import TestCase, mock import pyfakefs.tests.import_as_example import pyfakefs.tests.logsio from pyfakefs import fake_filesystem_unittest, fake_filesystem from pyfakefs.fake_filesystem import OSType from pyfakefs.fake_filesystem_unittest import ( Patcher, Pause, patchfs, PatchMode, ) from pyfakefs.tests.fixtures import module_with_attributes if sys.version_info < (3, 12): # distutils removed in Python 3.12 from distutils.dir_util import copy_tree, remove_tree class TestPatcher(TestCase): def test_context_manager(self): with Patcher() as patcher: patcher.fs.create_file("/foo/bar", contents="test") with open("/foo/bar") as f: contents = f.read() self.assertEqual("test", contents) @patchfs def test_context_decorator(self, fake_fs): fake_fs.create_file("/foo/bar", contents="test") with open("/foo/bar") as f: contents = f.read() self.assertEqual("test", contents) class TestPatchfsArgumentOrder(TestCase): @patchfs @mock.patch("os.system") def test_argument_order1(self, fake_fs, patched_system): fake_fs.create_file("/foo/bar", contents="test") with open("/foo/bar") as f: contents = f.read() self.assertEqual("test", contents) os.system("foo") patched_system.assert_called_with("foo") @mock.patch("os.system") @patchfs def test_argument_order2(self, patched_system, fake_fs): fake_fs.create_file("/foo/bar", contents="test") with open("/foo/bar") as f: contents = f.read() self.assertEqual("test", contents) os.system("foo") patched_system.assert_called_with("foo") class TestPyfakefsUnittestBase(fake_filesystem_unittest.TestCase): def setUp(self): """Set up the fake file system""" self.setUpPyfakefs() class TestPyfakefsUnittest(TestPyfakefsUnittestBase): # pylint: disable=R0904 """Test the `pyfakefs.fake_filesystem_unittest.TestCase` base class.""" def test_open(self): """Fake `open()` function is bound""" self.assertFalse(os.path.exists("/fake_file.txt")) with open("/fake_file.txt", "w") as f: f.write("This test file was created using the open() function.\n") self.assertTrue(self.fs.exists("/fake_file.txt")) with open("/fake_file.txt") as f: content = f.read() self.assertEqual( "This test file was created using the " "open() function.\n", content, ) def test_io_open(self): """Fake io module is bound""" self.assertFalse(os.path.exists("/fake_file.txt")) with io.open("/fake_file.txt", "w") as f: f.write("This test file was created using the" " io.open() function.\n") self.assertTrue(self.fs.exists("/fake_file.txt")) with open("/fake_file.txt") as f: content = f.read() self.assertEqual( "This test file was created using the " "io.open() function.\n", content, ) def test_os(self): """Fake os module is bound""" self.assertFalse(self.fs.exists("/test/dir1/dir2")) os.makedirs("/test/dir1/dir2") self.assertTrue(self.fs.exists("/test/dir1/dir2")) def test_glob(self): """Fake glob module is bound""" is_windows = sys.platform.startswith("win") self.assertEqual([], glob.glob("/test/dir1/dir*")) self.fs.create_dir("/test/dir1/dir2a") matching_paths = glob.glob("/test/dir1/dir*") if is_windows: self.assertEqual([r"/test/dir1\dir2a"], matching_paths) else: self.assertEqual(["/test/dir1/dir2a"], matching_paths) self.fs.create_dir("/test/dir1/dir2b") matching_paths = sorted(glob.glob("/test/dir1/dir*")) if is_windows: self.assertEqual([r"/test/dir1\dir2a", r"/test/dir1\dir2b"], matching_paths) else: self.assertEqual(["/test/dir1/dir2a", "/test/dir1/dir2b"], matching_paths) def test_shutil(self): """Fake shutil module is bound""" self.fs.create_dir("/test/dir1/dir2a") self.fs.create_dir("/test/dir1/dir2b") self.assertTrue(self.fs.exists("/test/dir1/dir2b")) self.assertTrue(self.fs.exists("/test/dir1/dir2a")) shutil.rmtree("/test/dir1") self.assertFalse(self.fs.exists("/test/dir1")) def test_fakepathlib(self): p = pathlib.Path("/fake_file.txt") with p.open("w") as f: f.write("text") is_windows = sys.platform.startswith("win") if is_windows: self.assertTrue(self.fs.exists(r"\fake_file.txt")) else: self.assertTrue(self.fs.exists("/fake_file.txt")) class TestPatchingImports(TestPyfakefsUnittestBase): def test_import_as_other_name(self): file_path = "/foo/bar/baz" self.fs.create_file(file_path) self.assertTrue(self.fs.exists(file_path)) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists1(file_path)) def test_import_path_from_os(self): """Make sure `from os import path` patches `path`.""" file_path = "/foo/bar/baz" self.fs.create_file(file_path) self.assertTrue(self.fs.exists(file_path)) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists2(file_path)) def test_import_path_from_pathlib(self): file_path = "/foo/bar" self.fs.create_dir(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists3(file_path)) def test_import_exists_from_os_path(self): file_path = "/foo/bar" self.fs.create_dir(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists5(file_path)) def test_import_isfile_from_os_path(self): file_path = "/foo/bar" self.fs.create_file(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_isfile(file_path)) def test_import_isdir_from_os_path(self): file_path = "/foo/bar" self.fs.create_dir(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_isdir(file_path)) def test_import_islink_from_os_path(self): file_path = "/foo/bar" link_path = "/foo/link" self.fs.create_file(file_path) self.fs.create_symlink(link_path, file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_islink(link_path)) def test_import_function_from_os_path_as_other_name(self): file_path = "/foo/bar" self.fs.create_dir(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists6(file_path)) def test_import_pathlib_path(self): file_path = "/foo/bar" self.fs.create_dir(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists7(file_path)) def test_import_function_from_os(self): file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"abc") stat_result = pyfakefs.tests.import_as_example.file_stat1(file_path) self.assertEqual(3, stat_result.st_size) def test_import_function_from_os_as_other_name(self): file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"abc") stat_result = pyfakefs.tests.import_as_example.file_stat2(file_path) self.assertEqual(3, stat_result.st_size) @unittest.skipIf(sys.version_info >= (3, 12), "Currently not working in 3.12") def test_import_open_as_other_name(self): file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"abc") contents = pyfakefs.tests.import_as_example.file_contents1(file_path) self.assertEqual("abc", contents) @unittest.skipIf(sys.version_info >= (3, 12), "Currently not working in 3.12") def test_import_io_open_as_other_name(self): file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"abc") contents = pyfakefs.tests.import_as_example.file_contents2(file_path) self.assertEqual("abc", contents) class TestPatchingDefaultArgs(fake_filesystem_unittest.TestCase): def setUp(self): self.setUpPyfakefs(patch_default_args=True) def test_path_exists_as_default_arg_in_function(self): file_path = "/foo/bar" self.fs.create_dir(file_path) self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists4(file_path)) def test_path_exists_as_default_arg_in_method(self): file_path = "/foo/bar" self.fs.create_dir(file_path) sut = pyfakefs.tests.import_as_example.TestDefaultArg() self.assertTrue(sut.check_if_exists(file_path)) def test_fake_path_exists4(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists4("foo")) class TestAttributesWithFakeModuleNames(TestPyfakefsUnittestBase): """Test that module attributes with names like `path` or `io` are not stubbed out. """ def test_attributes(self): """Attributes of module under test are not patched""" self.assertEqual(module_with_attributes.os, "os attribute value") self.assertEqual(module_with_attributes.path, "path attribute value") self.assertEqual(module_with_attributes.pathlib, "pathlib attribute value") self.assertEqual(module_with_attributes.shutil, "shutil attribute value") self.assertEqual(module_with_attributes.io, "io attribute value") import math as path # noqa: E402 wanted import not at top class TestPathNotPatchedIfNotOsPath(TestPyfakefsUnittestBase): """Tests that `path` is not patched if it is not `os.path`. An own path module (in this case an alias to math) can be imported and used. """ def test_own_path_module(self): self.assertEqual(2, path.floor(2.5)) class FailedPatchingTest(TestPyfakefsUnittestBase): """Negative tests: make sure the tests for `modules_to_reload` and `modules_to_patch` fail if not providing the arguments. """ @unittest.expectedFailure def test_system_stat(self): file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"test") self.assertEqual( 4, pyfakefs.tests.import_as_example.system_stat(file_path).st_size ) class ReloadModuleTest(fake_filesystem_unittest.TestCase): """Make sure that reloading a module allows patching of classes not patched automatically. """ def setUp(self): """Set up the fake file system""" self.setUpPyfakefs(modules_to_reload=[pyfakefs.tests.import_as_example]) class NoSkipNamesTest(fake_filesystem_unittest.TestCase): """Reference test for additional_skip_names tests: make sure that the module is patched by default.""" def setUp(self): self.setUpPyfakefs() def test_path_exists(self): self.assertFalse(pyfakefs.tests.import_as_example.exists_this_file()) def test_fake_path_exists1(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists1("foo")) def test_fake_path_exists2(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists2("foo")) def test_fake_path_exists3(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists3("foo")) def test_fake_path_exists5(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists5("foo")) def test_fake_path_exists6(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists6("foo")) def test_fake_path_exists7(self): self.fs.create_file("foo") self.assertTrue(pyfakefs.tests.import_as_example.check_if_exists7("foo")) def test_open_fails(self): with self.assertRaises(OSError): pyfakefs.tests.import_as_example.open_this_file() def test_open_patched_in_module_ending_with_io(self): # regression test for #569 file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"abc") contents = pyfakefs.tests.logsio.file_contents(file_path) self.assertEqual(b"abc", contents) class AdditionalSkipNamesTest(fake_filesystem_unittest.TestCase): """Make sure that modules in additional_skip_names are not patched. Passes module name to `additional_skip_names`.""" def setUp(self): self.setUpPyfakefs(additional_skip_names=["pyfakefs.tests.import_as_example"]) def test_path_exists(self): self.assertTrue(pyfakefs.tests.import_as_example.exists_this_file()) def test_fake_path_does_not_exist1(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists1("foo")) def test_fake_path_does_not_exist2(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists2("foo")) def test_fake_path_does_not_exist3(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists3("foo")) def test_fake_path_does_not_exist4(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists4("foo")) def test_fake_path_does_not_exist5(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists5("foo")) def test_fake_path_does_not_exist6(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists6("foo")) def test_fake_path_does_not_exist7(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists7("foo")) @unittest.skipIf( sys.version_info >= (3, 12), "Skip modules currently not working for open in 3.12", ) def test_open_succeeds(self): pyfakefs.tests.import_as_example.open_this_file() def test_path_succeeds(self): pyfakefs.tests.import_as_example.return_this_file_path() class AdditionalSkipNamesModuleTest(fake_filesystem_unittest.TestCase): """Make sure that modules in additional_skip_names are not patched. Passes module to `additional_skip_names`.""" def setUp(self): self.setUpPyfakefs(additional_skip_names=[pyfakefs.tests.import_as_example]) def test_path_exists(self): self.assertTrue(pyfakefs.tests.import_as_example.exists_this_file()) def test_fake_path_does_not_exist1(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists1("foo")) def test_fake_path_does_not_exist2(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists2("foo")) def test_fake_path_does_not_exist3(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists3("foo")) def test_fake_path_does_not_exist4(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists4("foo")) def test_fake_path_does_not_exist5(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists5("foo")) def test_fake_path_does_not_exist6(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists6("foo")) def test_fake_path_does_not_exist7(self): self.fs.create_file("foo") self.assertFalse(pyfakefs.tests.import_as_example.check_if_exists7("foo")) @unittest.skipIf( sys.version_info >= (3, 12), "Skip modules currently not working for open in 3.12", ) def test_open_succeeds(self): pyfakefs.tests.import_as_example.open_this_file() def test_path_succeeds(self): pyfakefs.tests.import_as_example.return_this_file_path() class FakeExampleModule: """Used to patch a function that uses system-specific functions that cannot be patched automatically.""" _orig_module = pyfakefs.tests.import_as_example def __init__(self, fs): pass def system_stat(self, filepath): return os.stat(filepath) def __getattr__(self, name): """Forwards any non-faked calls to the standard module.""" return getattr(self._orig_module, name) class PatchModuleTest(fake_filesystem_unittest.TestCase): """Make sure that reloading a module allows patching of classes not patched automatically. """ def setUp(self): """Set up the fake file system""" self.setUpPyfakefs( modules_to_patch={"pyfakefs.tests.import_as_example": FakeExampleModule} ) def test_system_stat(self): file_path = "/foo/bar" self.fs.create_file(file_path, contents=b"test") self.assertEqual( 4, pyfakefs.tests.import_as_example.system_stat(file_path).st_size ) class PatchModuleTestUsingDecorator(unittest.TestCase): """Make sure that reloading a module allows patching of classes not patched automatically - use patchfs decorator with parameter. """ @patchfs @unittest.expectedFailure def test_system_stat_failing(self, fake_fs): file_path = "/foo/bar" fake_fs.create_file(file_path, contents=b"test") self.assertEqual( 4, pyfakefs.tests.import_as_example.system_stat(file_path).st_size ) @patchfs(modules_to_patch={"pyfakefs.tests.import_as_example": FakeExampleModule}) def test_system_stat(self, fake_fs): file_path = "/foo/bar" fake_fs.create_file(file_path, contents=b"test") self.assertEqual( 4, pyfakefs.tests.import_as_example.system_stat(file_path).st_size ) class NoRootUserTest(fake_filesystem_unittest.TestCase): """Test allow_root_user argument to setUpPyfakefs.""" def setUp(self): self.setUpPyfakefs(allow_root_user=False) def test_non_root_behavior(self): """Check that fs behaves as non-root user regardless of actual user rights. """ self.fs.is_windows_fs = False dir_path = "/foo/bar" self.fs.create_dir(dir_path, perm_bits=0o555) file_path = dir_path + "baz" with self.assertRaises(OSError): self.fs.create_file(file_path) file_path = "/baz" self.fs.create_file(file_path) os.chmod(file_path, 0o400) with self.assertRaises(OSError): open(file_path, "w") class PauseResumeTest(fake_filesystem_unittest.TestCase): def setUp(self): self.real_temp_file = None self.setUpPyfakefs() def tearDown(self): if self.real_temp_file is not None: self.real_temp_file.close() def test_pause_resume(self): fake_temp_file = tempfile.NamedTemporaryFile() self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) self.pause() self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertFalse(os.path.exists(fake_temp_file.name)) self.real_temp_file = tempfile.NamedTemporaryFile() self.assertFalse(self.fs.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(self.real_temp_file.name)) self.resume() self.assertFalse(os.path.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) def test_pause_resume_fs(self): fake_temp_file = tempfile.NamedTemporaryFile() self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) # resume does nothing if not paused self.fs.resume() self.assertTrue(os.path.exists(fake_temp_file.name)) self.fs.pause() self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertFalse(os.path.exists(fake_temp_file.name)) self.real_temp_file = tempfile.NamedTemporaryFile() self.assertFalse(self.fs.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(self.real_temp_file.name)) # pause does nothing if already paused self.fs.pause() self.assertFalse(self.fs.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(self.real_temp_file.name)) self.fs.resume() self.assertFalse(os.path.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) def test_pause_resume_contextmanager(self): fake_temp_file = tempfile.NamedTemporaryFile() self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) with Pause(self): self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertFalse(os.path.exists(fake_temp_file.name)) self.real_temp_file = tempfile.NamedTemporaryFile() self.assertFalse(self.fs.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(self.real_temp_file.name)) self.assertFalse(os.path.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) def test_pause_resume_fs_contextmanager(self): fake_temp_file = tempfile.NamedTemporaryFile() self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) with Pause(self.fs): self.assertTrue(self.fs.exists(fake_temp_file.name)) self.assertFalse(os.path.exists(fake_temp_file.name)) self.real_temp_file = tempfile.NamedTemporaryFile() self.assertFalse(self.fs.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(self.real_temp_file.name)) self.assertFalse(os.path.exists(self.real_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) def test_pause_resume_without_patcher(self): fs = fake_filesystem.FakeFilesystem() with self.assertRaises(RuntimeError): fs.resume() class PauseResumePatcherTest(fake_filesystem_unittest.TestCase): def test_pause_resume(self): with Patcher() as p: fake_temp_file = tempfile.NamedTemporaryFile() self.assertTrue(p.fs.exists(fake_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) p.pause() self.assertTrue(p.fs.exists(fake_temp_file.name)) self.assertFalse(os.path.exists(fake_temp_file.name)) real_temp_file = tempfile.NamedTemporaryFile() self.assertFalse(p.fs.exists(real_temp_file.name)) self.assertTrue(os.path.exists(real_temp_file.name)) p.resume() self.assertFalse(os.path.exists(real_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) real_temp_file.close() def test_pause_resume_contextmanager(self): with Patcher() as p: fake_temp_file = tempfile.NamedTemporaryFile() self.assertTrue(p.fs.exists(fake_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) with Pause(p): self.assertTrue(p.fs.exists(fake_temp_file.name)) self.assertFalse(os.path.exists(fake_temp_file.name)) real_temp_file = tempfile.NamedTemporaryFile() self.assertFalse(p.fs.exists(real_temp_file.name)) self.assertTrue(os.path.exists(real_temp_file.name)) self.assertFalse(os.path.exists(real_temp_file.name)) self.assertTrue(os.path.exists(fake_temp_file.name)) real_temp_file.close() class TestPyfakefsTestCase(unittest.TestCase): def setUp(self): class TestTestCase(fake_filesystem_unittest.TestCase): def runTest(self): pass self.test_case = TestTestCase("runTest") def test_test_case_type(self): self.assertIsInstance(self.test_case, unittest.TestCase) self.assertIsInstance(self.test_case, fake_filesystem_unittest.TestCaseMixin) class TestTempDirCreation(fake_filesystem_unittest.TestCase): """Test that the temp directory exists at test start.""" def setUp(self): self.setUpPyfakefs() def test_tempdir_exists(self): self.assertTrue(os.path.exists(tempfile.gettempdir())) @unittest.skipIf(sys.platform == "win32", "POSIX only test") def test_tmp_exists(self): # directory or link under Linux, link under macOS self.assertTrue(os.path.exists("/tmp")) class TestTempFileReload(unittest.TestCase): """Regression test for #356 to make sure that reloading the tempfile does not affect other tests.""" def test_fakefs(self): with Patcher() as patcher: patcher.fs.create_file("/mytempfile", contents="abcd") def test_value(self): v = multiprocessing.Value("I", 0) self.assertEqual(v.value, 0) class TestPyfakefsTestCaseMixin( unittest.TestCase, fake_filesystem_unittest.TestCaseMixin ): def test_set_up_pyfakefs(self): self.setUpPyfakefs() self.assertTrue(hasattr(self, "fs")) self.assertIsInstance(self.fs, fake_filesystem.FakeFilesystem) class TestShutilWithZipfile(fake_filesystem_unittest.TestCase): """Regression test for #427.""" def setUp(self): self.setUpPyfakefs() self.fs.create_file("foo/bar") def test_a(self): shutil.make_archive("archive", "zip", root_dir="foo") def test_b(self): # used to fail because 'bar' could not be found shutil.make_archive("archive", "zip", root_dir="foo") if sys.version_info < (3, 12): class TestDistutilsCopyTree(fake_filesystem_unittest.TestCase): """Regression test for #501.""" def setUp(self): self.setUpPyfakefs() self.fs.create_dir("./test/subdir/") self.fs.create_dir("./test/subdir2/") self.fs.create_file("./test2/subdir/1.txt") def test_file_copied(self): copy_tree("./test2/", "./test/") remove_tree("./test2/") self.assertTrue(os.path.isfile("./test/subdir/1.txt")) self.assertFalse(os.path.isdir("./test2/")) def test_file_copied_again(self): # used to fail because 'test2' could not be found self.assertTrue(os.path.isfile("./test2/subdir/1.txt")) copy_tree("./test2/", "./test/") remove_tree("./test2/") self.assertTrue(os.path.isfile("./test/subdir/1.txt")) self.assertFalse(os.path.isdir("./test2/")) class PathlibTest(TestCase): """Regression test for #527""" @patchfs def test_cwd(self, fs): """Make sure fake file system is used for os in pathlib""" is_windows = sys.platform.startswith("win") root_dir = "C:" + os.path.sep if is_windows else os.path.sep self.assertEqual(root_dir, str(pathlib.Path.cwd())) dot_abs = pathlib.Path(".").absolute() self.assertEqual(root_dir, str(dot_abs)) self.assertTrue(dot_abs.exists()) class TestDeprecationSuppression(fake_filesystem_unittest.TestCase): @unittest.skipIf( sys.version_info[1] == 6, "Test fails for Python 3.6 for unknown reason", ) def test_no_deprecation_warning(self): """Ensures that deprecation warnings are suppressed during module lookup, see #542. """ from pyfakefs.tests.fixtures.deprecated_property import ( # noqa: F401 DeprecationTest, ) with warnings.catch_warnings(record=True) as w: warnings.simplefilter("error", DeprecationWarning) self.setUpPyfakefs() self.assertEqual(0, len(w)) def load_configs(configs): """Helper code for patching open_code in auto mode, see issue #554.""" retval = [] for config in configs: if len(config) > 3 and config[-3:] == ".py": retval += runpy.run_path(config) else: retval += runpy.run_module(config) return retval class AutoPatchOpenCodeTestCase(fake_filesystem_unittest.TestCase): """Test patching open_code in auto mode, see issue #554.""" def setUp(self): self.setUpPyfakefs(patch_open_code=PatchMode.AUTO) self.configpy = "configpy.py" self.fs.create_file(self.configpy, contents="configurable_value='yup'") self.config_module = "pyfakefs.tests.fixtures.config_module" def test_both(self): load_configs([self.configpy, self.config_module]) def test_run_path(self): load_configs([self.configpy]) def test_run_module(self): load_configs([self.config_module]) class TestOtherFS(fake_filesystem_unittest.TestCase): def setUp(self): self.setUpPyfakefs() def test_real_file_with_home(self): """Regression test for #558""" self.fs.is_windows_fs = os.name != "nt" if self.fs.is_windows_fs: self.fs.is_macos = False self.fs.add_real_file(__file__) with open(__file__) as f: self.assertTrue(f.read()) home = Path.home() os.chdir(home) with open(__file__) as f: self.assertTrue(f.read()) def test_windows(self): self.fs.os = OSType.WINDOWS path = r"C:\foo\bar" self.assertEqual(path, os.path.join("C:\\", "foo", "bar")) self.assertEqual(("C:", r"\foo\bar"), os.path.splitdrive(path)) self.fs.create_file(path) self.assertTrue(os.path.exists(path)) self.assertTrue(os.path.exists(path.upper())) self.assertTrue(os.path.ismount(r"\\share\foo")) self.assertTrue(os.path.ismount(r"C:")) self.assertEqual("\\", os.sep) self.assertEqual("\\", os.path.sep) self.assertEqual("/", os.altsep) self.assertEqual(";", os.pathsep) self.assertEqual("\r\n", os.linesep) self.assertEqual("nul", os.devnull) def test_linux(self): self.fs.os = OSType.LINUX path = "/foo/bar" self.assertEqual(path, os.path.join("/", "foo", "bar")) self.assertEqual(("", "C:/foo/bar"), os.path.splitdrive("C:/foo/bar")) self.fs.create_file(path) self.assertTrue(os.path.exists(path)) self.assertFalse(os.path.exists(path.upper())) self.assertTrue(os.path.ismount("/")) self.assertFalse(os.path.ismount("//share/foo")) self.assertEqual("/", os.sep) self.assertEqual("/", os.path.sep) self.assertEqual(None, os.altsep) self.assertEqual(":", os.pathsep) self.assertEqual("\n", os.linesep) self.assertEqual("/dev/null", os.devnull) def test_macos(self): self.fs.os = OSType.MACOS path = "/foo/bar" self.assertEqual(path, os.path.join("/", "foo", "bar")) self.assertEqual(("", "C:/foo/bar"), os.path.splitdrive("C:/foo/bar")) self.fs.create_file(path) self.assertTrue(os.path.exists(path)) self.assertTrue(os.path.exists(path.upper())) self.assertTrue(os.path.ismount("/")) self.assertFalse(os.path.ismount("//share/foo")) self.assertEqual("/", os.sep) self.assertEqual("/", os.path.sep) self.assertEqual(None, os.altsep) self.assertEqual(":", os.pathsep) self.assertEqual("\n", os.linesep) self.assertEqual("/dev/null", os.devnull) def test_drivelike_path(self): self.fs.os = OSType.LINUX folder = Path("/test") file_path = folder / "C:/testfile" file_path.parent.mkdir(parents=True) file_path.touch() os.chdir(folder) self.assertTrue(os.path.exists(str(file_path.relative_to(folder)))) @unittest.skipIf(sys.platform != "win32", "Windows-specific behavior") class TestAbsolutePathOnWindows(fake_filesystem_unittest.TestCase): @patchfs def test_is_absolute(self, fs): # regression test for #673 self.assertTrue(pathlib.Path(".").absolute().is_absolute()) @unittest.skipIf(sys.version_info < (3, 8), "Not available before Python 3.8") class TestClassSetup(fake_filesystem_unittest.TestCase): @classmethod def setUpClass(cls): cls.setUpClassPyfakefs() cls.fake_fs().create_file("foo/bar", contents="test") def test_using_fs_functions(self): self.assertTrue(os.path.exists("foo/bar")) with open("foo/bar") as f: contents = f.read() self.assertEqual("test", contents) def test_using_fakefs(self): self.assertTrue(self.fs.exists("foo/bar")) f = self.fs.get_object("foo/bar") self.assertEqual("test", f.contents) if __name__ == "__main__": unittest.main()