diff options
Diffstat (limited to 'Lib/test/test_scope.py')
| -rw-r--r-- | Lib/test/test_scope.py | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/Lib/test/test_scope.py b/Lib/test/test_scope.py index f52ab91..f5c1462 100644 --- a/Lib/test/test_scope.py +++ b/Lib/test/test_scope.py @@ -477,6 +477,39 @@ self.assert_(X.passed) del d['h'] self.assertEqual(d, {'x': 2, 'y': 7, 'w': 6}) + def testLocalsClass(self): + # This test verifies that calling locals() does not pollute + # the local namespace of the class with free variables. Old + # versions of Python had a bug, where a free variable being + # passed through a class namespace would be inserted into + # locals() by locals() or exec or a trace function. + # + # The real bug lies in frame code that copies variables + # between fast locals and the locals dict, e.g. when executing + # a trace function. + + def f(x): + class C: + x = 12 + def m(self): + return x + locals() + return C + + self.assertEqual(f(1).x, 12) + + def f(x): + class C: + y = x + def m(self): + return x + z = list(locals()) + return C + + varnames = f(1).z + self.assert_("x" not in varnames) + self.assert_("y" in varnames) + def testBoundAndFree(self): # var is bound and free in class @@ -607,7 +640,7 @@ self.assert_(X.passed) c = f(0) self.assertEqual(c.get(), 1) self.assert_("x" not in c.__class__.__dict__) - + def testNonLocalGenerator(self): |