diff options
Diffstat (limited to 'Lib/test/test_gc.py')
| -rw-r--r-- | Lib/test/test_gc.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Lib/test/test_gc.py b/Lib/test/test_gc.py index 2ac1d4bb64..254f64b2b8 100644 --- a/Lib/test/test_gc.py +++ b/Lib/test/test_gc.py @@ -546,11 +546,31 @@ class GCTests(unittest.TestCase): class UserClass: pass + + class UserInt(int): + pass + + # Base class is object; no extra fields. + class UserClassSlots: + __slots__ = () + + # Base class is fixed size larger than object; no extra fields. + class UserFloatSlots(float): + __slots__ = () + + # Base class is variable size; no extra fields. + class UserIntSlots(int): + __slots__ = () + self.assertTrue(gc.is_tracked(gc)) self.assertTrue(gc.is_tracked(UserClass)) self.assertTrue(gc.is_tracked(UserClass())) + self.assertTrue(gc.is_tracked(UserInt())) self.assertTrue(gc.is_tracked([])) self.assertTrue(gc.is_tracked(set())) + self.assertFalse(gc.is_tracked(UserClassSlots())) + self.assertFalse(gc.is_tracked(UserFloatSlots())) + self.assertFalse(gc.is_tracked(UserIntSlots())) def test_bug1055820b(self): # Corresponds to temp2b.py in the bug report. |