| 1 |
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| 2 | import os, filecmp, shutil, tempfile
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| 3 | import unittest
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| 4 | from test import test_support
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| 5 |
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| 6 | class FileCompareTestCase(unittest.TestCase):
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| 7 | def setUp(self):
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| 8 | self.name = test_support.TESTFN
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| 9 | self.name_same = test_support.TESTFN + '-same'
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| 10 | self.name_diff = test_support.TESTFN + '-diff'
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| 11 | data = 'Contents of file go here.\n'
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| 12 | for name in [self.name, self.name_same, self.name_diff]:
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| 13 | output = open(name, 'w')
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| 14 | output.write(data)
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| 15 | output.close()
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| 16 |
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| 17 | output = open(self.name_diff, 'a+')
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| 18 | output.write('An extra line.\n')
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| 19 | output.close()
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| 20 | self.dir = tempfile.gettempdir()
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| 21 |
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| 22 | def tearDown(self):
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| 23 | os.unlink(self.name)
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| 24 | os.unlink(self.name_same)
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| 25 | os.unlink(self.name_diff)
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| 26 |
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| 27 | def test_matching(self):
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| 28 | self.assertTrue(filecmp.cmp(self.name, self.name_same),
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| 29 | "Comparing file to itself fails")
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| 30 | self.assertTrue(filecmp.cmp(self.name, self.name_same, shallow=False),
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| 31 | "Comparing file to itself fails")
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| 32 | self.assertTrue(filecmp.cmp(self.name, self.name, shallow=False),
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| 33 | "Comparing file to identical file fails")
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| 34 | self.assertTrue(filecmp.cmp(self.name, self.name),
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| 35 | "Comparing file to identical file fails")
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| 36 |
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| 37 | def test_different(self):
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| 38 | self.assertFalse(filecmp.cmp(self.name, self.name_diff),
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| 39 | "Mismatched files compare as equal")
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| 40 | self.assertFalse(filecmp.cmp(self.name, self.dir),
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| 41 | "File and directory compare as equal")
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| 42 |
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| 43 | class DirCompareTestCase(unittest.TestCase):
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| 44 | def setUp(self):
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| 45 | tmpdir = tempfile.gettempdir()
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| 46 | self.dir = os.path.join(tmpdir, 'dir')
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| 47 | self.dir_same = os.path.join(tmpdir, 'dir-same')
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| 48 | self.dir_diff = os.path.join(tmpdir, 'dir-diff')
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| 49 | self.caseinsensitive = os.path.normcase('A') == os.path.normcase('a')
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| 50 | data = 'Contents of file go here.\n'
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| 51 | for dir in [self.dir, self.dir_same, self.dir_diff]:
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| 52 | shutil.rmtree(dir, True)
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| 53 | os.mkdir(dir)
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| 54 | if self.caseinsensitive and dir is self.dir_same:
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| 55 | fn = 'FiLe' # Verify case-insensitive comparison
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| 56 | else:
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| 57 | fn = 'file'
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| 58 | output = open(os.path.join(dir, fn), 'w')
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| 59 | output.write(data)
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| 60 | output.close()
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| 61 |
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| 62 | output = open(os.path.join(self.dir_diff, 'file2'), 'w')
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| 63 | output.write('An extra file.\n')
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| 64 | output.close()
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| 65 |
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| 66 | def tearDown(self):
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| 67 | shutil.rmtree(self.dir)
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| 68 | shutil.rmtree(self.dir_same)
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| 69 | shutil.rmtree(self.dir_diff)
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| 70 |
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| 71 | def test_cmpfiles(self):
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| 72 | self.assertTrue(filecmp.cmpfiles(self.dir, self.dir, ['file']) ==
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| 73 | (['file'], [], []),
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| 74 | "Comparing directory to itself fails")
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| 75 | self.assertTrue(filecmp.cmpfiles(self.dir, self.dir_same, ['file']) ==
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| 76 | (['file'], [], []),
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| 77 | "Comparing directory to same fails")
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| 78 |
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| 79 | # Try it with shallow=False
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| 80 | self.assertTrue(filecmp.cmpfiles(self.dir, self.dir, ['file'],
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| 81 | shallow=False) ==
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| 82 | (['file'], [], []),
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| 83 | "Comparing directory to itself fails")
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| 84 | self.assertTrue(filecmp.cmpfiles(self.dir, self.dir_same, ['file'],
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| 85 | shallow=False),
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| 86 | "Comparing directory to same fails")
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| 87 |
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| 88 | # Add different file2
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| 89 | output = open(os.path.join(self.dir, 'file2'), 'w')
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| 90 | output.write('Different contents.\n')
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| 91 | output.close()
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| 92 |
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| 93 | self.assertFalse(filecmp.cmpfiles(self.dir, self.dir_same,
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| 94 | ['file', 'file2']) ==
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| 95 | (['file'], ['file2'], []),
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| 96 | "Comparing mismatched directories fails")
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| 97 |
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| 98 |
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| 99 | def test_dircmp(self):
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| 100 | # Check attributes for comparison of two identical directories
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| 101 | d = filecmp.dircmp(self.dir, self.dir_same)
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| 102 | if self.caseinsensitive:
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| 103 | self.assertEqual([d.left_list, d.right_list],[['file'], ['FiLe']])
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| 104 | else:
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| 105 | self.assertEqual([d.left_list, d.right_list],[['file'], ['file']])
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| 106 | self.assertTrue(d.common == ['file'])
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| 107 | self.assertTrue(d.left_only == d.right_only == [])
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| 108 | self.assertTrue(d.same_files == ['file'])
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| 109 | self.assertTrue(d.diff_files == [])
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| 110 |
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| 111 | # Check attributes for comparison of two different directories
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| 112 | d = filecmp.dircmp(self.dir, self.dir_diff)
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| 113 | self.assertTrue(d.left_list == ['file'])
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| 114 | self.assertTrue(d.right_list == ['file', 'file2'])
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| 115 | self.assertTrue(d.common == ['file'])
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| 116 | self.assertTrue(d.left_only == [])
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| 117 | self.assertTrue(d.right_only == ['file2'])
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| 118 | self.assertTrue(d.same_files == ['file'])
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| 119 | self.assertTrue(d.diff_files == [])
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| 120 |
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| 121 | # Add different file2
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| 122 | output = open(os.path.join(self.dir, 'file2'), 'w')
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| 123 | output.write('Different contents.\n')
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| 124 | output.close()
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| 125 | d = filecmp.dircmp(self.dir, self.dir_diff)
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| 126 | self.assertTrue(d.same_files == ['file'])
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| 127 | self.assertTrue(d.diff_files == ['file2'])
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| 128 |
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| 129 |
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| 130 | def test_main():
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| 131 | test_support.run_unittest(FileCompareTestCase, DirCompareTestCase)
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| 132 |
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| 133 | if __name__ == "__main__":
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| 134 | test_main()
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