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-rw-r--r--Lib/test/test_shutil.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py
index 30d9e07e35..8d003a8f98 100644
--- a/Lib/test/test_shutil.py
+++ b/Lib/test/test_shutil.py
@@ -645,6 +645,14 @@ class TestShutil(unittest.TestCase):
diff = self._compare_dirs(tmpdir, tmpdir2)
self.assertEqual(diff, [])
+ # and again, this time with the format specified
+ tmpdir3 = self.mkdtemp()
+ unpack_archive(filename, tmpdir3, format=format)
+ diff = self._compare_dirs(tmpdir, tmpdir3)
+ self.assertEqual(diff, [])
+ self.assertRaises(shutil.ReadError, unpack_archive, TESTFN)
+ self.assertRaises(ValueError, unpack_archive, TESTFN, format='xxx')
+
def test_unpack_registery(self):
formats = get_unpack_formats()