mirror of https://github.com/python/cpython
339 lines
14 KiB
Python
339 lines
14 KiB
Python
import filecmp
|
|
import os
|
|
import re
|
|
import shutil
|
|
import tempfile
|
|
import unittest
|
|
|
|
from test import support
|
|
from test.support import os_helper
|
|
|
|
|
|
def _create_file_shallow_equal(template_path, new_path):
|
|
"""create a file with the same size and mtime but different content."""
|
|
shutil.copy2(template_path, new_path)
|
|
with open(new_path, 'r+b') as f:
|
|
next_char = bytearray(f.read(1))
|
|
next_char[0] = (next_char[0] + 1) % 256
|
|
f.seek(0)
|
|
f.write(next_char)
|
|
shutil.copystat(template_path, new_path)
|
|
assert os.stat(new_path).st_size == os.stat(template_path).st_size
|
|
assert os.stat(new_path).st_mtime == os.stat(template_path).st_mtime
|
|
|
|
class FileCompareTestCase(unittest.TestCase):
|
|
def setUp(self):
|
|
self.name = os_helper.TESTFN
|
|
self.name_same = os_helper.TESTFN + '-same'
|
|
self.name_diff = os_helper.TESTFN + '-diff'
|
|
self.name_same_shallow = os_helper.TESTFN + '-same-shallow'
|
|
data = 'Contents of file go here.\n'
|
|
for name in [self.name, self.name_same, self.name_diff]:
|
|
with open(name, 'w', encoding="utf-8") as output:
|
|
output.write(data)
|
|
|
|
with open(self.name_diff, 'a+', encoding="utf-8") as output:
|
|
output.write('An extra line.\n')
|
|
|
|
for name in [self.name_same, self.name_diff]:
|
|
shutil.copystat(self.name, name)
|
|
|
|
_create_file_shallow_equal(self.name, self.name_same_shallow)
|
|
|
|
self.dir = tempfile.gettempdir()
|
|
|
|
def tearDown(self):
|
|
os.unlink(self.name)
|
|
os.unlink(self.name_same)
|
|
os.unlink(self.name_diff)
|
|
os.unlink(self.name_same_shallow)
|
|
|
|
def test_matching(self):
|
|
self.assertTrue(filecmp.cmp(self.name, self.name),
|
|
"Comparing file to itself fails")
|
|
self.assertTrue(filecmp.cmp(self.name, self.name, shallow=False),
|
|
"Comparing file to itself fails")
|
|
self.assertTrue(filecmp.cmp(self.name, self.name_same),
|
|
"Comparing file to identical file fails")
|
|
self.assertTrue(filecmp.cmp(self.name, self.name_same, shallow=False),
|
|
"Comparing file to identical file fails")
|
|
self.assertTrue(filecmp.cmp(self.name, self.name_same_shallow),
|
|
"Shallow identical files should be considered equal")
|
|
|
|
def test_different(self):
|
|
self.assertFalse(filecmp.cmp(self.name, self.name_diff),
|
|
"Mismatched files compare as equal")
|
|
self.assertFalse(filecmp.cmp(self.name, self.dir),
|
|
"File and directory compare as equal")
|
|
self.assertFalse(filecmp.cmp(self.name, self.name_same_shallow,
|
|
shallow=False),
|
|
"Mismatched file to shallow identical file compares as equal")
|
|
|
|
def test_cache_clear(self):
|
|
first_compare = filecmp.cmp(self.name, self.name_same, shallow=False)
|
|
second_compare = filecmp.cmp(self.name, self.name_diff, shallow=False)
|
|
filecmp.clear_cache()
|
|
self.assertTrue(len(filecmp._cache) == 0,
|
|
"Cache not cleared after calling clear_cache")
|
|
|
|
class DirCompareTestCase(unittest.TestCase):
|
|
def setUp(self):
|
|
tmpdir = tempfile.gettempdir()
|
|
self.dir = os.path.join(tmpdir, 'dir')
|
|
self.dir_same = os.path.join(tmpdir, 'dir-same')
|
|
self.dir_diff = os.path.join(tmpdir, 'dir-diff')
|
|
self.dir_diff_file = os.path.join(tmpdir, 'dir-diff-file')
|
|
self.dir_same_shallow = os.path.join(tmpdir, 'dir-same-shallow')
|
|
|
|
# Another dir is created under dir_same, but it has a name from the
|
|
# ignored list so it should not affect testing results.
|
|
self.dir_ignored = os.path.join(self.dir_same, '.hg')
|
|
|
|
self.caseinsensitive = os.path.normcase('A') == os.path.normcase('a')
|
|
data = 'Contents of file go here.\n'
|
|
|
|
shutil.rmtree(self.dir, True)
|
|
os.mkdir(self.dir)
|
|
subdir_path = os.path.join(self.dir, 'subdir')
|
|
os.mkdir(subdir_path)
|
|
dir_file_path = os.path.join(self.dir, "file")
|
|
with open(dir_file_path, 'w', encoding="utf-8") as output:
|
|
output.write(data)
|
|
|
|
for dir in (self.dir_same, self.dir_same_shallow,
|
|
self.dir_diff, self.dir_diff_file):
|
|
shutil.rmtree(dir, True)
|
|
os.mkdir(dir)
|
|
subdir_path = os.path.join(dir, 'subdir')
|
|
os.mkdir(subdir_path)
|
|
if self.caseinsensitive and dir is self.dir_same:
|
|
fn = 'FiLe' # Verify case-insensitive comparison
|
|
else:
|
|
fn = 'file'
|
|
|
|
file_path = os.path.join(dir, fn)
|
|
|
|
if dir is self.dir_same_shallow:
|
|
_create_file_shallow_equal(dir_file_path, file_path)
|
|
else:
|
|
shutil.copy2(dir_file_path, file_path)
|
|
|
|
with open(os.path.join(self.dir_diff, 'file2'), 'w', encoding="utf-8") as output:
|
|
output.write('An extra file.\n')
|
|
|
|
# Add different file2 with respect to dir_diff
|
|
with open(os.path.join(self.dir_diff_file, 'file2'), 'w', encoding="utf-8") as output:
|
|
output.write('Different contents.\n')
|
|
|
|
|
|
def tearDown(self):
|
|
for dir in (self.dir, self.dir_same, self.dir_diff,
|
|
self.dir_same_shallow, self.dir_diff_file):
|
|
shutil.rmtree(dir)
|
|
|
|
def test_default_ignores(self):
|
|
self.assertIn('.hg', filecmp.DEFAULT_IGNORES)
|
|
|
|
def test_cmpfiles(self):
|
|
self.assertTrue(filecmp.cmpfiles(self.dir, self.dir, ['file']) ==
|
|
(['file'], [], []),
|
|
"Comparing directory to itself fails")
|
|
self.assertTrue(filecmp.cmpfiles(self.dir, self.dir_same, ['file']) ==
|
|
(['file'], [], []),
|
|
"Comparing directory to same fails")
|
|
|
|
# Try it with shallow=False
|
|
self.assertTrue(filecmp.cmpfiles(self.dir, self.dir, ['file'],
|
|
shallow=False) ==
|
|
(['file'], [], []),
|
|
"Comparing directory to itself fails")
|
|
self.assertTrue(filecmp.cmpfiles(self.dir, self.dir_same, ['file'],
|
|
shallow=False),
|
|
"Comparing directory to same fails")
|
|
|
|
self.assertFalse(filecmp.cmpfiles(self.dir, self.dir_diff_file,
|
|
['file', 'file2']) ==
|
|
(['file'], ['file2'], []),
|
|
"Comparing mismatched directories fails")
|
|
|
|
|
|
def _assert_lists(self, actual, expected):
|
|
"""Assert that two lists are equal, up to ordering."""
|
|
self.assertEqual(sorted(actual), sorted(expected))
|
|
|
|
def test_dircmp_identical_directories(self):
|
|
self._assert_dircmp_identical_directories()
|
|
self._assert_dircmp_identical_directories(shallow=False)
|
|
|
|
def test_dircmp_different_file(self):
|
|
self._assert_dircmp_different_file()
|
|
self._assert_dircmp_different_file(shallow=False)
|
|
|
|
def test_dircmp_different_directories(self):
|
|
self._assert_dircmp_different_directories()
|
|
self._assert_dircmp_different_directories(shallow=False)
|
|
|
|
def _assert_dircmp_identical_directories(self, **options):
|
|
# Check attributes for comparison of two identical directories
|
|
left_dir, right_dir = self.dir, self.dir_same
|
|
d = filecmp.dircmp(left_dir, right_dir, **options)
|
|
self.assertEqual(d.left, left_dir)
|
|
self.assertEqual(d.right, right_dir)
|
|
if self.caseinsensitive:
|
|
self._assert_lists(d.left_list, ['file', 'subdir'])
|
|
self._assert_lists(d.right_list, ['FiLe', 'subdir'])
|
|
else:
|
|
self._assert_lists(d.left_list, ['file', 'subdir'])
|
|
self._assert_lists(d.right_list, ['file', 'subdir'])
|
|
self._assert_lists(d.common, ['file', 'subdir'])
|
|
self._assert_lists(d.common_dirs, ['subdir'])
|
|
self.assertEqual(d.left_only, [])
|
|
self.assertEqual(d.right_only, [])
|
|
self.assertEqual(d.same_files, ['file'])
|
|
self.assertEqual(d.diff_files, [])
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir, self.dir_same),
|
|
"Identical files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
]
|
|
self._assert_report(d.report, expected_report)
|
|
|
|
def _assert_dircmp_different_directories(self, **options):
|
|
# Check attributes for comparison of two different directories (right)
|
|
left_dir, right_dir = self.dir, self.dir_diff
|
|
d = filecmp.dircmp(left_dir, right_dir, **options)
|
|
self.assertEqual(d.left, left_dir)
|
|
self.assertEqual(d.right, right_dir)
|
|
self._assert_lists(d.left_list, ['file', 'subdir'])
|
|
self._assert_lists(d.right_list, ['file', 'file2', 'subdir'])
|
|
self._assert_lists(d.common, ['file', 'subdir'])
|
|
self._assert_lists(d.common_dirs, ['subdir'])
|
|
self.assertEqual(d.left_only, [])
|
|
self.assertEqual(d.right_only, ['file2'])
|
|
self.assertEqual(d.same_files, ['file'])
|
|
self.assertEqual(d.diff_files, [])
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir, self.dir_diff),
|
|
"Only in {} : ['file2']".format(self.dir_diff),
|
|
"Identical files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
]
|
|
self._assert_report(d.report, expected_report)
|
|
|
|
# Check attributes for comparison of two different directories (left)
|
|
left_dir, right_dir = self.dir_diff, self.dir
|
|
d = filecmp.dircmp(left_dir, right_dir, **options)
|
|
self.assertEqual(d.left, left_dir)
|
|
self.assertEqual(d.right, right_dir)
|
|
self._assert_lists(d.left_list, ['file', 'file2', 'subdir'])
|
|
self._assert_lists(d.right_list, ['file', 'subdir'])
|
|
self._assert_lists(d.common, ['file', 'subdir'])
|
|
self.assertEqual(d.left_only, ['file2'])
|
|
self.assertEqual(d.right_only, [])
|
|
self.assertEqual(d.same_files, ['file'])
|
|
self.assertEqual(d.diff_files, [])
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir_diff, self.dir),
|
|
"Only in {} : ['file2']".format(self.dir_diff),
|
|
"Identical files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
]
|
|
self._assert_report(d.report, expected_report)
|
|
|
|
|
|
def _assert_dircmp_different_file(self, **options):
|
|
# A different file2
|
|
d = filecmp.dircmp(self.dir_diff, self.dir_diff_file, **options)
|
|
self.assertEqual(d.same_files, ['file'])
|
|
self.assertEqual(d.diff_files, ['file2'])
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir_diff, self.dir_diff_file),
|
|
"Identical files : ['file']",
|
|
"Differing files : ['file2']",
|
|
"Common subdirectories : ['subdir']",
|
|
]
|
|
self._assert_report(d.report, expected_report)
|
|
|
|
def test_dircmp_no_shallow_different_file(self):
|
|
# A non shallow different file2
|
|
d = filecmp.dircmp(self.dir, self.dir_same_shallow, shallow=False)
|
|
self.assertEqual(d.same_files, [])
|
|
self.assertEqual(d.diff_files, ['file'])
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir, self.dir_same_shallow),
|
|
"Differing files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
]
|
|
self._assert_report(d.report, expected_report)
|
|
|
|
def test_dircmp_shallow_same_file(self):
|
|
# A non shallow different file2
|
|
d = filecmp.dircmp(self.dir, self.dir_same_shallow)
|
|
self.assertEqual(d.same_files, ['file'])
|
|
self.assertEqual(d.diff_files, [])
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir, self.dir_same_shallow),
|
|
"Identical files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
]
|
|
self._assert_report(d.report, expected_report)
|
|
|
|
def test_dircmp_shallow_is_keyword_only(self):
|
|
with self.assertRaisesRegex(
|
|
TypeError,
|
|
re.escape("dircmp.__init__() takes from 3 to 5 positional arguments but 6 were given"),
|
|
):
|
|
filecmp.dircmp(self.dir, self.dir_same, None, None, True)
|
|
self.assertIsInstance(
|
|
filecmp.dircmp(self.dir, self.dir_same, None, None, shallow=True),
|
|
filecmp.dircmp,
|
|
)
|
|
|
|
def test_dircmp_subdirs_type(self):
|
|
"""Check that dircmp.subdirs respects subclassing."""
|
|
class MyDirCmp(filecmp.dircmp):
|
|
pass
|
|
d = MyDirCmp(self.dir, self.dir_diff)
|
|
sub_dirs = d.subdirs
|
|
self.assertEqual(list(sub_dirs.keys()), ['subdir'])
|
|
sub_dcmp = sub_dirs['subdir']
|
|
self.assertEqual(type(sub_dcmp), MyDirCmp)
|
|
|
|
def test_report_partial_closure(self):
|
|
left_dir, right_dir = self.dir, self.dir_same
|
|
d = filecmp.dircmp(left_dir, right_dir)
|
|
left_subdir = os.path.join(left_dir, 'subdir')
|
|
right_subdir = os.path.join(right_dir, 'subdir')
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir, self.dir_same),
|
|
"Identical files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
'',
|
|
"diff {} {}".format(left_subdir, right_subdir),
|
|
]
|
|
self._assert_report(d.report_partial_closure, expected_report)
|
|
|
|
def test_report_full_closure(self):
|
|
left_dir, right_dir = self.dir, self.dir_same
|
|
d = filecmp.dircmp(left_dir, right_dir)
|
|
left_subdir = os.path.join(left_dir, 'subdir')
|
|
right_subdir = os.path.join(right_dir, 'subdir')
|
|
expected_report = [
|
|
"diff {} {}".format(self.dir, self.dir_same),
|
|
"Identical files : ['file']",
|
|
"Common subdirectories : ['subdir']",
|
|
'',
|
|
"diff {} {}".format(left_subdir, right_subdir),
|
|
]
|
|
self._assert_report(d.report_full_closure, expected_report)
|
|
|
|
def _assert_report(self, dircmp_report, expected_report_lines):
|
|
with support.captured_stdout() as stdout:
|
|
dircmp_report()
|
|
report_lines = stdout.getvalue().strip().split('\n')
|
|
self.assertEqual(report_lines, expected_report_lines)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|