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improve test coverage of filecmp (closes #21357)

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Patch by Diana Clarke.
This commit is contained in:
Benjamin Peterson 2014-05-03 20:07:16 -04:00
parent c9926088dd
commit f24600eb64
1 changed files with 75 additions and 5 deletions
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80
Lib/test/test_filecmp.py
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@ -1,7 +1,12 @@
import os, filecmp, shutil, tempfile
import filecmp
import os
import shutil
import tempfile
import unittest
from test import support
class FileCompareTestCase(unittest.TestCase):
def setUp(self):
self.name = support.TESTFN
@ -120,30 +125,95 @@ class DirCompareTestCase(unittest.TestCase):
else:
self.assertEqual([d.left_list, d.right_list],[['file'], ['file']])
self.assertEqual(d.common, ['file'])
self.assertTrue(d.left_only == d.right_only == [])
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']",
]
self._assert_report(d.report, expected_report)
# Check attributes for comparison of two different directories
# 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)
self.assertEqual(d.left, left_dir)
self.assertEqual(d.right, right_dir)
self.assertEqual(d.left_list, ['file'])
self.assertTrue(d.right_list == ['file', 'file2'])
self.assertEqual(d.right_list, ['file', 'file2'])
self.assertEqual(d.common, ['file'])
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']",
]
self._assert_report(d.report, expected_report)
# Check attributes for comparison of two different directories (left)
left_dir, right_dir = self.dir, self.dir_diff
shutil.move(
os.path.join(self.dir_diff, 'file2'),
os.path.join(self.dir, 'file2')
)
d = filecmp.dircmp(left_dir, right_dir)
self.assertEqual(d.left, left_dir)
self.assertEqual(d.right, right_dir)
self.assertEqual(d.left_list, ['file', 'file2'])
self.assertEqual(d.right_list, ['file'])
self.assertEqual(d.common, ['file'])
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, self.dir_diff),
"Only in {} : ['file2']".format(self.dir),
"Identical files : ['file']",
]
self._assert_report(d.report, expected_report)
# Add different file2
output = open(os.path.join(self.dir, 'file2'), 'w')
output = open(os.path.join(self.dir_diff, 'file2'), 'w')
output.write('Different contents.\n')
output.close()
d = filecmp.dircmp(self.dir, self.dir_diff)
self.assertEqual(d.same_files, ['file'])
self.assertEqual(d.diff_files, ['file2'])
expected_report = [
"diff {} {}".format(self.dir, self.dir_diff),
"Identical files : ['file']",
"Differing files : ['file2']",
]
self._assert_report(d.report, expected_report)
def test_report_partial_closure(self):
left_dir, right_dir = self.dir, self.dir_same
d = filecmp.dircmp(left_dir, right_dir)
expected_report = [
"diff {} {}".format(self.dir, self.dir_same),
"Identical files : ['file']",
]
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)
expected_report = [
"diff {} {}".format(self.dir, self.dir_same),
"Identical files : ['file']",
]
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)
def test_main():