test_interface.py 文件源码

def test_classImplements_multiple_w_explict_implements(self):
        from zope.interface import Interface
        from zope.interface import implementedBy
        from zope.interface import providedBy

        class ILeft(Interface):

            def method():
                pass

        class IRight(ILeft):
            pass

        class IOther(Interface):
            pass

        class Left():
            __implemented__ = ILeft

            def method(self):
                pass

        class Right(object):
            __implemented__ = IRight

        class Other(object):
            __implemented__ = IOther

        class Mixed(Left, Right):
            __implemented__ = Left.__implemented__, Other.__implemented__

        mixed = Mixed()

        self.assertTrue(ILeft.implementedBy(Mixed))
        self.assertFalse(IRight.implementedBy(Mixed))
        self.assertTrue(IOther.implementedBy(Mixed))
        self.assertTrue(ILeft in implementedBy(Mixed))
        self.assertFalse(IRight in implementedBy(Mixed))
        self.assertTrue(IOther in implementedBy(Mixed))
        self.assertTrue(ILeft in providedBy(mixed))
        self.assertFalse(IRight in providedBy(mixed))
        self.assertTrue(IOther in providedBy(mixed))