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//usr/lib/python2.4/test/test_filecmp.py
import os, filecmp, shutil, tempfile import unittest from test import test_support class FileCompareTestCase(unittest.TestCase): def setUp(self): self.name = test_support.TESTFN self.name_same = test_support.TESTFN + '-same' self.name_diff = test_support.TESTFN + '-diff' data = 'Contents of file go here.\n' for name in [self.name, self.name_same, self.name_diff]: output = open(name, 'w') output.write(data) output.close() output = open(self.name_diff, 'a+') output.write('An extra line.\n') output.close() self.dir = tempfile.gettempdir() def tearDown(self): os.unlink(self.name) os.unlink(self.name_same) os.unlink(self.name_diff) def test_matching(self): self.failUnless(filecmp.cmp(self.name, self.name_same), "Comparing file to itself fails") self.failUnless(filecmp.cmp(self.name, self.name_same, shallow=False), "Comparing file to itself fails") self.failUnless(filecmp.cmp(self.name, self.name, shallow=False), "Comparing file to identical file fails") self.failUnless(filecmp.cmp(self.name, self.name), "Comparing file to identical file fails") def test_different(self): self.failIf(filecmp.cmp(self.name, self.name_diff), "Mismatched files compare as equal") self.failIf(filecmp.cmp(self.name, self.dir), "File and directory compare as equal") 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.caseinsensitive = os.path.normcase('A') == os.path.normcase('a') data = 'Contents of file go here.\n' for dir in [self.dir, self.dir_same, self.dir_diff]: os.mkdir(dir) if self.caseinsensitive and dir is self.dir_same: fn = 'FiLe' # Verify case-insensitive comparison else: fn = 'file' output = open(os.path.join(dir, fn), 'w') output.write(data) output.close() output = open(os.path.join(self.dir_diff, 'file2'), 'w') output.write('An extra file.\n') output.close() def tearDown(self): shutil.rmtree(self.dir) shutil.rmtree(self.dir_same) shutil.rmtree(self.dir_diff) def test_cmpfiles(self): self.failUnless(filecmp.cmpfiles(self.dir, self.dir, ['file']) == (['file'], [], []), "Comparing directory to itself fails") self.failUnless(filecmp.cmpfiles(self.dir, self.dir_same, ['file']) == (['file'], [], []), "Comparing directory to same fails") # Try it with shallow=False self.failUnless(filecmp.cmpfiles(self.dir, self.dir, ['file'], shallow=False) == (['file'], [], []), "Comparing directory to itself fails") self.failUnless(filecmp.cmpfiles(self.dir, self.dir_same, ['file'], shallow=False), "Comparing directory to same fails") # Add different file2 output = open(os.path.join(self.dir, 'file2'), 'w') output.write('Different contents.\n') output.close() self.failIf(filecmp.cmpfiles(self.dir, self.dir_same, ['file', 'file2']) == (['file'], ['file2'], []), "Comparing mismatched directories fails") def test_dircmp(self): # Check attributes for comparison of two identical directories d = filecmp.dircmp(self.dir, self.dir_same) if self.caseinsensitive: self.assertEqual([d.left_list, d.right_list],[['file'], ['FiLe']]) else: self.assertEqual([d.left_list, d.right_list],[['file'], ['file']]) self.failUnless(d.common == ['file']) self.failUnless(d.left_only == d.right_only == []) self.failUnless(d.same_files == ['file']) self.failUnless(d.diff_files == []) # Check attributes for comparison of two different directories d = filecmp.dircmp(self.dir, self.dir_diff) self.failUnless(d.left_list == ['file']) self.failUnless(d.right_list == ['file', 'file2']) self.failUnless(d.common == ['file']) self.failUnless(d.left_only == []) self.failUnless(d.right_only == ['file2']) self.failUnless(d.same_files == ['file']) self.failUnless(d.diff_files == []) # Add different file2 output = open(os.path.join(self.dir, 'file2'), 'w') output.write('Different contents.\n') output.close() d = filecmp.dircmp(self.dir, self.dir_diff) self.failUnless(d.same_files == ['file']) self.failUnless(d.diff_files == ['file2']) def test_main(): test_support.run_unittest(FileCompareTestCase, DirCompareTestCase) if __name__ == "__main__": test_main()