testvb.py 文件源码

def TestObjectSemantics(ob):
    # a convenient place to test some of our equality semantics
    assert ob==ob._oleobj_
    assert not ob!=ob._oleobj_
    # same test again, but lhs and rhs reversed.
    assert ob._oleobj_==ob
    assert not ob._oleobj_!=ob
    # same tests but against different pointers.  COM identity rules should
    # still ensure all works
    assert ob._oleobj_==ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)
    assert not ob._oleobj_!=ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)

    assert ob._oleobj_!=None
    assert None!=ob._oleobj_
    assert ob!=None
    assert None!=ob
    if sys.version_info > (3,0):
        try:
            ob < None
            raise error("Expected type error")
        except TypeError:
            pass
        try:
            None < ob
            raise error("Expected type error")
        except TypeError:
            pass

    assert ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)==ob._oleobj_
    assert not ob._oleobj_.QueryInterface(pythoncom.IID_IUnknown)!=ob._oleobj_

    assert ob._oleobj_==ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)
    assert not ob._oleobj_!=ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)

    assert ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)==ob._oleobj_
    assert not ob._oleobj_.QueryInterface(pythoncom.IID_IDispatch)!=ob._oleobj_

    print "Object semantic tests passed"