bpo-41919, test_codecs: Move codecs.register calls to setUp() (GH-22513)
* Move the codecs' (un)register operation to testcases.
* Remove _codecs._forget_codec() and _PyCodec_Forget()
diff --git a/Lib/test/test_charmapcodec.py b/Lib/test/test_charmapcodec.py
index 0d4594d..3f62890 100644
--- a/Lib/test/test_charmapcodec.py
+++ b/Lib/test/test_charmapcodec.py
@@ -20,12 +20,15 @@
return tuple(testcodec.getregentry())
return None
-codecs.register(codec_search_function)
-
# test codec's name (see test/testcodec.py)
codecname = 'testcodec'
class CharmapCodecTest(unittest.TestCase):
+
+ def setUp(self):
+ codecs.register(codec_search_function)
+ self.addCleanup(codecs.unregister, codec_search_function)
+
def test_constructorx(self):
self.assertEqual(str(b'abc', codecname), 'abc')
self.assertEqual(str(b'xdef', codecname), 'abcdef')