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-rw-r--r--Lib/distutils/tests/test_dep_util.py101
1 files changed, 101 insertions, 0 deletions
diff --git a/Lib/distutils/tests/test_dep_util.py b/Lib/distutils/tests/test_dep_util.py
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+++ b/Lib/distutils/tests/test_dep_util.py
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+"""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
+
+# XXX needs to be tuned for the various platforms
+_ST_MIME_TIMER = 1
+
+class DepUtilTestCase(support.TempdirManager, unittest.TestCase):
+
+ def test_newer(self):
+ tmpdir = self.mkdtemp()
+ target = os.path.join(tmpdir, 'target')
+ source = os.path.join(tmpdir, 'source')
+
+ # Raise DistutilsFileError if 'source' does not exist.
+ self.assertRaises(DistutilsFileError, newer, target, source)
+
+ # Return true if 'source' exists and is more recently modified than
+ # 'target', or if 'source' exists and 'target' doesn't.
+ self.write_file(target)
+ self.assertTrue(newer(target, source))
+ self.write_file(source, 'xox')
+ time.sleep(_ST_MIME_TIMER) # ensures ST_MTIME differs
+ self.write_file(target, 'xhx')
+ self.assertTrue(newer(target, source))
+
+ # Return false if both exist and 'target' is the same age or younger
+ # than 'source'.
+ self.write_file(source, 'xox'); self.write_file(target, 'xhx')
+ self.assertFalse(newer(target, source))
+ self.write_file(target, 'xox')
+ time.sleep(_ST_MIME_TIMER)
+ self.write_file(source, 'xhx')
+ self.assertFalse(newer(target, source))
+
+ 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.join(targets, 'three')
+ four = os.path.join(targets, 'four')
+
+ self.write_file(one)
+ self.write_file(three)
+ self.write_file(four)
+ time.sleep(_ST_MIME_TIMER)
+ self.write_file(two)
+
+ self.assertEquals(newer_pairwise([one, two], [three, four]),
+ ([two],[four]))
+
+ 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')
+ target = os.path.join(tmpdir, 'target')
+
+ # return true if 'target' is out-of-date with respect to any file
+ # listed in 'sources'.
+ self.write_file(target)
+ time.sleep(_ST_MIME_TIMER)
+ self.write_file(one)
+ self.write_file(two)
+ self.write_file(three)
+ self.assertTrue(newer_group([one, two, three], target))
+
+ self.write_file(one)
+ self.write_file(three)
+ self.write_file(two)
+ time.sleep(0.1)
+ self.write_file(target)
+ self.assertFalse(newer_group([one, two, three], target))
+
+ # missing handling
+ os.remove(one)
+ self.assertRaises(OSError, newer_group, [one, two, three], target)
+
+ self.assertFalse(newer_group([one, two, three], target,
+ missing='ignore'))
+
+ self.assertTrue(newer_group([one, two, three], target,
+ missing='newer'))
+
+
+def test_suite():
+ return unittest.makeSuite(DepUtilTestCase)
+
+if __name__ == "__main__":
+ unittest.main(defaultTest="test_suite")