/src/qt/qtwebkit/Tools/Scripts/webkitpy/common/system/filesystem_unittest.py
Python | 264 lines | 195 code | 32 blank | 37 comment | 17 complexity | e6048241a2c1dadf3432462c8ddbdf82 MD5 | raw file
- # vim: set fileencoding=utf-8 :
- # Copyright (C) 2010 Google Inc. All rights reserved.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # * Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # * Redistributions in binary form must reproduce the above
- # copyright notice, this list of conditions and the following disclaimer
- # in the documentation and/or other materials provided with the
- # distribution.
- # * Neither the name of Google Inc. nor the names of its
- # contributors may be used to endorse or promote products derived from
- # this software without specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- # NOTE: The fileencoding comment on the first line of the file is
- # important; without it, Python will choke while trying to parse the file,
- # since it includes non-ASCII characters.
- import os
- import stat
- import sys
- import tempfile
- import unittest2 as unittest
- from filesystem import FileSystem
- class GenericFileSystemTests(object):
- """Tests that should pass on either a real or mock filesystem."""
- def setup_generic_test_dir(self):
- fs = self.fs
- self.generic_test_dir = str(self.fs.mkdtemp())
- self.orig_cwd = fs.getcwd()
- fs.chdir(self.generic_test_dir)
- fs.write_text_file('foo.txt', 'foo')
- fs.write_text_file('foobar', 'foobar')
- fs.maybe_make_directory('foodir')
- fs.write_text_file(fs.join('foodir', 'baz'), 'baz')
- fs.chdir(self.orig_cwd)
- def teardown_generic_test_dir(self):
- self.fs.rmtree(self.generic_test_dir)
- self.fs.chdir(self.orig_cwd)
- self.generic_test_dir = None
- def test_glob__trailing_asterisk(self):
- self.fs.chdir(self.generic_test_dir)
- self.assertEqual(set(self.fs.glob('fo*')), set(['foo.txt', 'foobar', 'foodir']))
- def test_glob__leading_asterisk(self):
- self.fs.chdir(self.generic_test_dir)
- self.assertEqual(set(self.fs.glob('*xt')), set(['foo.txt']))
- def test_glob__middle_asterisk(self):
- self.fs.chdir(self.generic_test_dir)
- self.assertEqual(set(self.fs.glob('f*r')), set(['foobar', 'foodir']))
- def test_glob__period_is_escaped(self):
- self.fs.chdir(self.generic_test_dir)
- self.assertEqual(set(self.fs.glob('foo.*')), set(['foo.txt']))
- class RealFileSystemTest(unittest.TestCase, GenericFileSystemTests):
- def setUp(self):
- self.fs = FileSystem()
- self.setup_generic_test_dir()
- self._this_dir = os.path.dirname(os.path.abspath(__file__))
- self._missing_file = os.path.join(self._this_dir, 'missing_file.py')
- self._this_file = os.path.join(self._this_dir, 'filesystem_unittest.py')
- def tearDown(self):
- self.teardown_generic_test_dir()
- self.fs = None
- def test_chdir(self):
- fs = FileSystem()
- cwd = fs.getcwd()
- newdir = '/'
- if sys.platform == 'win32':
- newdir = 'c:\\'
- fs.chdir(newdir)
- self.assertEqual(fs.getcwd(), newdir)
- fs.chdir(cwd)
- def test_chdir__notexists(self):
- fs = FileSystem()
- newdir = '/dirdoesnotexist'
- if sys.platform == 'win32':
- newdir = 'c:\\dirdoesnotexist'
- self.assertRaises(OSError, fs.chdir, newdir)
- def test_exists__true(self):
- fs = FileSystem()
- self.assertTrue(fs.exists(self._this_file))
- def test_exists__false(self):
- fs = FileSystem()
- self.assertFalse(fs.exists(self._missing_file))
- def test_getcwd(self):
- fs = FileSystem()
- self.assertTrue(fs.exists(fs.getcwd()))
- def test_isdir__true(self):
- fs = FileSystem()
- self.assertTrue(fs.isdir(self._this_dir))
- def test_isdir__false(self):
- fs = FileSystem()
- self.assertFalse(fs.isdir(self._this_file))
- def test_join(self):
- fs = FileSystem()
- self.assertEqual(fs.join('foo', 'bar'),
- os.path.join('foo', 'bar'))
- def test_listdir(self):
- fs = FileSystem()
- with fs.mkdtemp(prefix='filesystem_unittest_') as d:
- self.assertEqual(fs.listdir(d), [])
- new_file = os.path.join(d, 'foo')
- fs.write_text_file(new_file, u'foo')
- self.assertEqual(fs.listdir(d), ['foo'])
- os.remove(new_file)
- def test_maybe_make_directory__success(self):
- fs = FileSystem()
- with fs.mkdtemp(prefix='filesystem_unittest_') as base_path:
- sub_path = os.path.join(base_path, "newdir")
- self.assertFalse(os.path.exists(sub_path))
- self.assertFalse(fs.isdir(sub_path))
- fs.maybe_make_directory(sub_path)
- self.assertTrue(os.path.exists(sub_path))
- self.assertTrue(fs.isdir(sub_path))
- # Make sure we can re-create it.
- fs.maybe_make_directory(sub_path)
- self.assertTrue(os.path.exists(sub_path))
- self.assertTrue(fs.isdir(sub_path))
- # Clean up.
- os.rmdir(sub_path)
- self.assertFalse(os.path.exists(base_path))
- self.assertFalse(fs.isdir(base_path))
- def test_maybe_make_directory__failure(self):
- # FIXME: os.chmod() doesn't work on Windows to set directories
- # as readonly, so we skip this test for now.
- if sys.platform in ('win32', 'cygwin'):
- return
- fs = FileSystem()
- with fs.mkdtemp(prefix='filesystem_unittest_') as d:
- # Remove write permissions on the parent directory.
- os.chmod(d, stat.S_IRUSR)
- # Now try to create a sub directory - should fail.
- sub_dir = fs.join(d, 'subdir')
- self.assertRaises(OSError, fs.maybe_make_directory, sub_dir)
- # Clean up in case the test failed and we did create the
- # directory.
- if os.path.exists(sub_dir):
- os.rmdir(sub_dir)
- def test_read_and_write_text_file(self):
- fs = FileSystem()
- text_path = None
- unicode_text_string = u'\u016An\u012Dc\u014Dde\u033D'
- hex_equivalent = '\xC5\xAA\x6E\xC4\xAD\x63\xC5\x8D\x64\x65\xCC\xBD'
- try:
- text_path = tempfile.mktemp(prefix='tree_unittest_')
- file = fs.open_text_file_for_writing(text_path)
- file.write(unicode_text_string)
- file.close()
- file = fs.open_text_file_for_reading(text_path)
- read_text = file.read()
- file.close()
- self.assertEqual(read_text, unicode_text_string)
- finally:
- if text_path and fs.isfile(text_path):
- os.remove(text_path)
- def test_read_and_write_file(self):
- fs = FileSystem()
- text_path = None
- binary_path = None
- unicode_text_string = u'\u016An\u012Dc\u014Dde\u033D'
- hex_equivalent = '\xC5\xAA\x6E\xC4\xAD\x63\xC5\x8D\x64\x65\xCC\xBD'
- malformed_text_hex = '\x4D\x69\x63\x72\x6F\x73\x6F\x66\x74\xAE\x20\x56\x69\x73\x75\x61\x6C\x20\x53\x74\x75\x64\x69\x6F\xAE\x20\x32\x30\x31\x30\x0D\x0A'
- malformed_ignored_text_hex = '\x4D\x69\x63\x72\x6F\x73\x6F\x66\x74\x20\x56\x69\x73\x75\x61\x6C\x20\x53\x74\x75\x64\x69\x6F\x20\x32\x30\x31\x30\x0D\x0A'
- try:
- text_path = tempfile.mktemp(prefix='tree_unittest_')
- binary_path = tempfile.mktemp(prefix='tree_unittest_')
- fs.write_text_file(text_path, unicode_text_string)
- contents = fs.read_binary_file(text_path)
- self.assertEqual(contents, hex_equivalent)
- fs.write_binary_file(binary_path, hex_equivalent)
- text_contents = fs.read_text_file(binary_path)
- self.assertEqual(text_contents, unicode_text_string)
- self.assertRaises(ValueError, fs.write_text_file, binary_path, malformed_text_hex)
- fs.write_binary_file(binary_path, malformed_text_hex)
- self.assertRaises(ValueError, fs.read_text_file, binary_path)
- text_contents = fs.read_binary_file(binary_path).decode('utf8', 'ignore')
- self.assertEquals(text_contents, malformed_ignored_text_hex)
- finally:
- if text_path and fs.isfile(text_path):
- os.remove(text_path)
- if binary_path and fs.isfile(binary_path):
- os.remove(binary_path)
- def test_read_binary_file__missing(self):
- fs = FileSystem()
- self.assertRaises(IOError, fs.read_binary_file, self._missing_file)
- def test_read_text_file__missing(self):
- fs = FileSystem()
- self.assertRaises(IOError, fs.read_text_file, self._missing_file)
- def test_remove_file_with_retry(self):
- RealFileSystemTest._remove_failures = 2
- def remove_with_exception(filename):
- RealFileSystemTest._remove_failures -= 1
- if RealFileSystemTest._remove_failures >= 0:
- try:
- raise WindowsError
- except NameError:
- raise FileSystem._WindowsError
- fs = FileSystem()
- self.assertTrue(fs.remove('filename', remove_with_exception))
- self.assertEqual(-1, RealFileSystemTest._remove_failures)
- def test_sep(self):
- fs = FileSystem()
- self.assertEqual(fs.sep, os.sep)
- self.assertEqual(fs.join("foo", "bar"),
- os.path.join("foo", "bar"))