Merge branch 'master' into 2020-06-11-raise-from

1 files changed, 80 insertions, 0 deletions

diff --git a/setuptools/_distutils/tests/test_dep_util.py b/setuptools/_distutils/tests/test_dep_util.py
new file mode 100644
index 00000000..c6fae39c
--- /dev/null
+++ b/setuptools/_distutils/tests/test_dep_util.py
@@ -0,0 +1,80 @@
+"""Tests for distutils.dep_util."""
+import unittest
+import os
+
+from distutils.dep_util import newer, newer_pairwise, newer_group
+from distutils.errors import DistutilsFileError
+from distutils.tests import support
+from 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+        # return true if 'old_file' is out-of-date with respect to any file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())