"""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 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'two') three = os.path.join(sources, 'three') old_file = os.path.abspath(__file__) # return true if 'old_file' is out-of-date with respect to any file # listed in 'sources'.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__": unittest.main(defaultTest="test_suite")