test_odd_declarations.py 文件源码

def test_directlyProvides(self):
        class IA1(Interface): pass
        class IA2(Interface): pass
        class IB(Interface): pass
        class IC(Interface): pass
        class A(Odd):
            pass
        classImplements(A, IA1, IA2)

        class B(Odd):
            pass
        classImplements(B, IB)

        class C(A, B):
            pass
        classImplements(C, IC)


        ob = C()
        directlyProvides(ob, I1, I2)
        self.assertTrue(I1 in providedBy(ob))
        self.assertTrue(I2 in providedBy(ob))
        self.assertTrue(IA1 in providedBy(ob))
        self.assertTrue(IA2 in providedBy(ob))
        self.assertTrue(IB in providedBy(ob))
        self.assertTrue(IC in providedBy(ob))

        directlyProvides(ob, directlyProvidedBy(ob)-I2)
        self.assertTrue(I1 in providedBy(ob))
        self.assertFalse(I2 in providedBy(ob))
        self.assertFalse(I2 in providedBy(ob))
        directlyProvides(ob, directlyProvidedBy(ob), I2)
        self.assertTrue(I2 in providedBy(ob))