diff options
Diffstat (limited to 'Lib/test/test_class.py')
-rw-r--r-- | Lib/test/test_class.py | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Lib/test/test_class.py b/Lib/test/test_class.py index 601b8b4..d872357 100644 --- a/Lib/test/test_class.py +++ b/Lib/test/test_class.py @@ -363,3 +363,37 @@ except AttributeError, x: pass else: print "attribute error for I.__init__ got masked" + + +# Test comparison and hash of methods +class A: + def __init__(self, x): + self.x = x + def f(self): + pass + def g(self): + pass + def __eq__(self, other): + return self.x == other.x + def __hash__(self): + return self.x +class B(A): + pass + +a1 = A(1) +a2 = A(2) +assert a1.f == a1.f +assert a1.f != a2.f +assert a1.f != a1.g +assert a1.f == A(1).f +assert hash(a1.f) == hash(a1.f) +assert hash(a1.f) == hash(A(1).f) + +assert A.f != a1.f +assert A.f != A.g +assert B.f == A.f +assert hash(B.f) == hash(A.f) + +# the following triggers a SystemError in 2.4 +a = A(hash(A.f.im_func)^(-1)) +hash(a.f) |