def test_negative(self):
class A:
def foo(self):
pass
class B(A):
pass
assert not overrides(B, 'foo')
assert not overrides(B(), 'foo')
def test_positive(self):
class A:
def foo(self):
pass
class B(A):
def foo(self):
pass
assert overrides(B, 'foo')
assert overrides(B(), 'foo')
def test_custom_base(self):
class A:
def foo(self): pass
class B:
def foo(self): pass
class C:
pass
assert overrides(B, 'foo', A)
assert not overrides(C, 'foo', A)
def test_three_class(self):
class A:
def foo(self): pass
class B(A):
pass
class C(B):
def foo(self): pass
assert overrides(C, 'foo')
assert not overrides(B, 'foo')