From: Alex Martelli <aleaxit@gmail.com>
Date: Mon, 7 Feb 2005 12:18:26 +0000 (+0000)
Subject: sligtly strengthen unit tests for copy.py
X-Git-Tag: v2.3.5~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3560fbd2acd1019db8e791515f9d1f8ae13d2a80;p=thirdparty%2FPython%2Fcpython.git

sligtly strengthen unit tests for copy.py
---

diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py
index 8ad5c8511f32..e4b57add20c1 100644
--- a/Lib/test/test_copy.py
+++ b/Lib/test/test_copy.py
@@ -185,7 +185,33 @@ class TestCopy(unittest.TestCase):
         self.assert_(x is not y)
         self.assert_(x.tag is not y.tag)
 
-    # regression tests for metaclass-confusion
+    # regression tests for class-vs-instance and metaclass-confusion
+    def test_copy_classoverinstance(self):
+        class C(object):
+            def __init__(self, v):
+                self.v = v
+            def __cmp__(self, other):
+                return -cmp(other, self.v)
+            def __copy__(self):
+                return self.__class__(self.v)
+        x = C(23)
+        self.assertEqual(copy.copy(x), x)
+        x.__copy__ = lambda: 42
+        self.assertEqual(copy.copy(x), x)
+
+    def test_deepcopy_classoverinstance(self):
+        class C(object):
+            def __init__(self, v):
+                self.v = v
+            def __cmp__(self, other):
+                return -cmp(other, self.v)
+            def __deepcopy__(self, memo):
+                return self.__class__(copy.deepcopy(self.v, memo))
+        x = C(23)
+        self.assertEqual(copy.deepcopy(x), x)
+        x.__deepcopy__ = lambda memo: 42
+        self.assertEqual(copy.deepcopy(x), x)
+
     def test_copy_metaclassconfusion(self):
         class MyOwnError(copy.Error):
             pass