test_interface.py 文件源码

def testUtil(self):
        self.assert_(IC in implementedBy(C))
        self.assert_(I1 in implementedBy(A))
        self.assert_(not I1 in implementedBy(C))
        self.assert_(I2 in implementedBy(B))
        self.assert_(not I2 in implementedBy(C))

        self.assert_(IC in providedBy(C()))
        self.assert_(I1 in providedBy(A()))
        self.assert_(not I1 in providedBy(C()))
        self.assert_(I2 in providedBy(B()))
        self.assert_(not I2 in providedBy(C()))