| """Tests for distutils.dep_util.""" | |
| import unittest | |
| import os | |
| import time | |
| from distutils.dep_util import newer, newer_pairwise, newer_group | |
| from distutils.errors import DistutilsFileError | |
| from distutils.tests import support | |
| from test.test_support import run_unittest | |
| class DepUtilTestCase(support.TempdirManager, unittest.TestCase): | |
| def test_newer(self): | |
| tmpdir = self.mkdtemp() | |
| new_file = os.path.join(tmpdir, 'new') | |
| old_file = os.path.abspath(__file__) | |
| # Raise DistutilsFileError if 'new_file' does not exist. | |
| self.assertRaises(DistutilsFileError, newer, new_file, old_file) | |
| # Return true if 'new_file' exists and is more recently modified than | |
| # 'old_file', or if 'new_file' exists and 'old_file' doesn't. | |
| self.write_file(new_file) | |
| self.assertTrue(newer(new_file, 'I_dont_exist')) | |
| self.assertTrue(newer(new_file, old_file)) | |
| # Return false if both exist and 'old_file' is the same age or younger | |
| # than 'new_file'. | |
| self.assertFalse(newer(old_file, new_file)) | |
| def test_newer_pairwise(self): | |
| tmpdir = self.mkdtemp() | |
| sources = os.path.join(tmpdir, 'sources') | |
| targets = os.path.join(tmpdir, 'targets') | |
| os.mkdir(sources) | |
| os.mkdir(targets) | |
| one = os.path.join(sources, 'one') | |
| two = os.path.join(sources, 'two') | |
| three = os.path.abspath(__file__) # I am the old file | |
| four = os.path.join(targets, 'four') | |
| self.write_file(one) | |
| self.write_file(two) | |
| self.write_file(four) | |
| self.assertEqual(newer_pairwise([one, two], [three, four]), | |
| ([one],[three])) | |
| def test_newer_group(self): | |
| tmpdir = self.mkdtemp() | |
| sources = os.path.join(tmpdir, 'sources') | |
| os.mkdir(sources) | |
| one = os.path.join(sources, 'one') | |
| two = os.path.join(sources, 'two') | |
| three = os.path.join(sources, 'three') | |
| old_file = os.path.abspath(__file__) | |
| # return true if 'old_file' is out-of-date with respect to any file | |
| # listed in 'sources'. | |
| self.write_file(one) | |
| self.write_file(two) | |
| self.write_file(three) | |
| self.assertTrue(newer_group([one, two, three], old_file)) | |
| self.assertFalse(newer_group([one, two, old_file], three)) | |
| # missing handling | |
| os.remove(one) | |
| self.assertRaises(OSError, newer_group, [one, two, old_file], three) | |
| self.assertFalse(newer_group([one, two, old_file], three, | |
| missing='ignore')) | |
| self.assertTrue(newer_group([one, two, old_file], three, | |
| missing='newer')) | |
| def test_suite(): | |
| return unittest.makeSuite(DepUtilTestCase) | |
| if __name__ == "__main__": | |
| run_unittest(test_suite()) |