Пример #1
0
    def test_mergeUnresolvedIID(self):
        """
        Test that merging a typelib with an unresolved definition of
        an interface that's also unresolved in this typelib, but one
        has a valid IID copies the IID value to the resulting typelib.

        """
        # Unresolved in both, but t1 has an IID value
        t1 = xpt.Typelib()
        # add an unresolved interface with a valid IID
        t1.interfaces.append(
            xpt.Interface("IFoo", iid="11223344-5566-7788-9900-aabbccddeeff"))
        t2 = xpt.Typelib()
        # add an unresolved interface, no IID
        t2.interfaces.append(xpt.Interface("IFoo"))
        t1.merge(t2)

        self.assertEqual(1, len(t1.interfaces))
        self.assertEqual("IFoo", t1.interfaces[0].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t1.interfaces[0].iid)
        # Unresolved in both, but t2 has an IID value
        t1 = xpt.Typelib()
        # add an unresolved interface, no IID
        t1.interfaces.append(xpt.Interface("IFoo"))
        t2 = xpt.Typelib()
        # add an unresolved interface with a valid IID
        t2.interfaces.append(
            xpt.Interface("IFoo", iid="11223344-5566-7788-9900-aabbccddeeff"))
        t1.merge(t2)

        self.assertEqual(1, len(t1.interfaces))
        self.assertEqual("IFoo", t1.interfaces[0].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t1.interfaces[0].iid)
Пример #2
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    def test_mergeConflict(self):
        """
        Test that merging two typelibs with conflicting interface definitions
        raises an error.
        
        """
        # Same names, different IIDs
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(
            xpt.Interface("IFoo", iid="11223344-5566-7788-9900-aabbccddeeff"))
        t2 = xpt.Typelib()
        # add an unresolved interface, same name different IID
        t2.interfaces.append(
            xpt.Interface("IFoo", iid="44332211-6655-8877-0099-aabbccddeeff"))
        self.assertRaises(xpt.DataError, xpt.xpt_link, [t1, t2])

        # Same IIDs, different names
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(
            xpt.Interface("IFoo", iid="11223344-5566-7788-9900-aabbccddeeff"))
        t2 = xpt.Typelib()
        # add an unresolved interface, same IID different name
        t2.interfaces.append(
            xpt.Interface("IBar", iid="11223344-5566-7788-9900-aabbccddeeff"))
        self.assertRaises(xpt.DataError, xpt.xpt_link, [t1, t2])
Пример #3
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    def test_mergeDifferent(self):
        """
        Test that merging two typelibs with completely different interfaces
        produces the correctly merged typelib.
        
        """
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(xpt.Interface("IFoo"))
        t2 = xpt.Typelib()
        # add an unresolved interface
        t2.interfaces.append(xpt.Interface("IBar"))
        t1.merge(t2)

        self.assertEqual(2, len(t1.interfaces))
        # Interfaces should wind up sorted
        self.assertEqual("IBar", t1.interfaces[0].name)
        self.assertEqual("IFoo", t1.interfaces[1].name)

        # Add some IID values
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(
            xpt.Interface("IFoo", iid="11223344-5566-7788-9900-aabbccddeeff"))
        t2 = xpt.Typelib()
        # add an unresolved interface
        t2.interfaces.append(
            xpt.Interface("IBar", iid="44332211-6655-8877-0099-aabbccddeeff"))
        t1.merge(t2)

        self.assertEqual(2, len(t1.interfaces))
        # Interfaces should wind up sorted
        self.assertEqual("IFoo", t1.interfaces[0].name)
        self.assertEqual("IBar", t1.interfaces[1].name)
Пример #4
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 def test_simple(self):
     t = xpt.Typelib()
     # add an unresolved interface
     t.interfaces.append(xpt.Interface("IFoo"))
     self.checkRoundtrip(t)
     
     t = xpt.Typelib()
     # add an unresolved interface with an IID
     t.interfaces.append(xpt.Interface("IBar", "11223344-5566-7788-9900-aabbccddeeff"))
     self.checkRoundtrip(t)
Пример #5
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    def test_mergeResolvedUnresolved(self):
        """
        Test that merging two typelibs, one of which contains an unresolved
        reference to an interface, and the other of which contains a
        resolved reference to the same interface results in keeping the
        resolved reference.

        """
        # t1 has an unresolved interface, t2 has a resolved version
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(xpt.Interface("IFoo"))
        t2 = xpt.Typelib()
        # add a resolved interface
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        t2.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(1, len(t3.interfaces))
        self.assertEqual("IFoo", t3.interfaces[0].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[0].iid)
        self.assert_(t3.interfaces[0].resolved)
        self.assertEqual(1, len(t3.interfaces[0].methods))
        self.assertEqual("Bar", t3.interfaces[0].methods[0].name)

        # t1 has a resolved interface, t2 has an unresolved version
        t1 = xpt.Typelib()
        # add a resolved interface
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        t1.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t2 = xpt.Typelib()
        # add an unresolved interface
        t2.interfaces.append(xpt.Interface("IFoo"))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(1, len(t3.interfaces))
        self.assertEqual("IFoo", t3.interfaces[0].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[0].iid)
        self.assert_(t3.interfaces[0].resolved)
        self.assertEqual(1, len(t3.interfaces[0].methods))
        self.assertEqual("Bar", t3.interfaces[0].methods[0].name)
Пример #6
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    def test_mergeReplaceArrayTypeParams(self):
        """
        Test that merging an interface correctly updates ArrayType
        params whose element_type is an InterfaceType on methods
        of other interfaces.

        """
        # t1 has an unresolved interface and an interface that uses the
        # unresolved interface as a type in an ArrayType in a parameter
        # of a method. t2 has a resolved version of the unresolved interface.
        t1 = xpt.Typelib()
        # add an unresolved interface
        i = xpt.Interface("IFoo")
        t1.interfaces.append(i)
        # add an interface that uses the unresolved interface
        # as a type in an ArrayType in a param value in a method.
        vp = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        intp = xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32))
        p = xpt.Param(xpt.ArrayType(xpt.InterfaceType(i), 1, 2))
        m = xpt.Method("ArrayIfaceParam", vp, params=[p, intp, intp])
        t1.interfaces.append(
            xpt.Interface("IParam",
                          iid="11111111-1111-1111-1111-111111111111",
                          methods=[m],
                          scriptable=True))
        t2 = xpt.Typelib()
        # add a resolved interface
        m = xpt.Method("Bar", vp)
        t2.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(2, len(t3.interfaces))
        self.assertEqual("IParam", t3.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t3.interfaces[0].iid)
        self.assertEqual("IFoo", t3.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[1].iid)
        self.assert_(t3.interfaces[1].resolved)
        # Ensure that IRetval's method's param type has been updated.
        self.assertEqual(1, len(t3.interfaces[0].methods))
        self.assert_(t3.interfaces[0].methods[0].params[0].type.element_type.
                     iface.resolved)
        self.assertEqual(
            t3.interfaces[1],
            t3.interfaces[0].methods[0].params[0].type.element_type.iface)
Пример #7
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    def test_xpt_link(self):
        """
        Test the xpt_link method.
        
        """
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(xpt.Interface("IFoo"))
        f1 = self.gettempfile()
        t1.write(f1)

        t2 = xpt.Typelib()
        # add an unresolved interface
        t2.interfaces.append(xpt.Interface("IBar"))
        f2 = self.gettempfile()
        t2.write(f2)

        f3 = self.gettempfile()
        xpt.xpt_link(f3, [f1, f2])
        t3 = xpt.Typelib.read(f3)

        self.assertEqual(2, len(t3.interfaces))
        # Interfaces should wind up sorted
        self.assertEqual("IBar", t3.interfaces[0].name)
        self.assertEqual("IFoo", t3.interfaces[1].name)

        # Add some IID values
        t1 = xpt.Typelib()
        # add an unresolved interface
        t1.interfaces.append(
            xpt.Interface("IFoo", iid="11223344-5566-7788-9900-aabbccddeeff"))
        f1 = self.gettempfile()
        t1.write(f1)

        t2 = xpt.Typelib()
        # add an unresolved interface
        t2.interfaces.append(
            xpt.Interface("IBar", iid="44332211-6655-8877-0099-aabbccddeeff"))
        f2 = self.gettempfile()
        t2.write(f2)

        f3 = self.gettempfile()
        xpt.xpt_link(f3, [f1, f2])
        t3 = xpt.Typelib.read(f3)

        self.assertEqual(2, len(t3.interfaces))
        # Interfaces should wind up sorted
        self.assertEqual("IFoo", t3.interfaces[0].name)
        self.assertEqual("IBar", t3.interfaces[1].name)
Пример #8
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def write_typelib(idl, fd, filename):
    """ Generate the typelib. """

    # We only care about interfaces that are scriptable.
    ifaces = []
    for p in idl.productions:
        if p.kind == 'interface' and p.attributes.scriptable:
            ifaces.append(build_interface(p, ifaces))

    typelib = xpt.Typelib(interfaces=ifaces)
    typelib.writefd(fd)
Пример #9
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def write_typelib(idl, fd, filename):
    """ Generate the typelib. """

    # We only care about interfaces
    ifaces = []
    for p in idl.productions:
        if p.kind == 'interface':
            ifaces.append(build_interface(p, ifaces))

    typelib = xpt.Typelib(interfaces=ifaces)
    typelib.writefd(fd)
Пример #10
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    def test_ifaceFlags(self):
        """
        Test that an interface's flags are correctly serialized
        and deserialized.

        """
        t = xpt.Typelib()
        t.interfaces.append(xpt.Interface("IFlags", iid="11223344-5566-7788-9900-aabbccddeeff",
                                          resolved=True,
                                          scriptable=True,
                                          function=True))
        self.checkRoundtrip(t)
Пример #11
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    def test_parent(self):
        """
        Test that an interface's parent property is correctly serialized
        and deserialized.

        """
        t = xpt.Typelib()
        pi = xpt.Interface("IParent")
        t.interfaces.append(pi)
        t.interfaces.append(xpt.Interface("IChild", iid="11223344-5566-7788-9900-aabbccddeeff",
                                          parent=pi, resolved=True))
        self.checkRoundtrip(t)
Пример #12
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 def test_read_file(self):
     """
     Test that a Typelib can be read/written from/to a file.
     """
     t = xpt.Typelib()
     # add an unresolved interface
     t.interfaces.append(xpt.Interface("IFoo"))
     fd, f = tempfile.mkstemp()
     os.close(fd)
     t.write(f)
     t2 = xpt.Typelib.read(f)
     os.remove(f)
     self.assert_(t2 is not None)
     self.assertEqualTypelibs(t, t2)
Пример #13
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 def test_constants(self):
     c = xpt.Constant("X", xpt.SimpleType(xpt.Type.Tags.uint32), 0xF000F000)
     i = xpt.Interface("IFoo",
                       iid="11223344-5566-7788-9900-aabbccddeeff",
                       constants=[c])
     t = xpt.Typelib(interfaces=[i])
     self.checkRoundtrip(t)
     # tack on some more constants
     i.constants.append(
         xpt.Constant("Y", xpt.SimpleType(xpt.Type.Tags.int16), -30000))
     i.constants.append(
         xpt.Constant("Z", xpt.SimpleType(xpt.Type.Tags.uint16), 0xB0B0))
     i.constants.append(
         xpt.Constant("A", xpt.SimpleType(xpt.Type.Tags.int32), -1000000))
     self.checkRoundtrip(t)
Пример #14
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    def test_mergeReplaceRetval(self):
        """
        Test that merging an interface correctly updates InterfaceType
        return values on methods of other interfaces.

        """
        # t1 has an unresolved interface and an interface that uses the
        # unresolved interface as a return value from a method. t2
        # has a resolved version of the unresolved interface.
        t1 = xpt.Typelib()
        # add an unresolved interface
        i = xpt.Interface("IFoo")
        t1.interfaces.append(i)
        # add an interface that uses the unresolved interface
        # as a return value in a method.
        p = xpt.Param(xpt.InterfaceType(i))
        m = xpt.Method("ReturnIface", p)
        t1.interfaces.append(
            xpt.Interface("IRetval",
                          iid="11111111-1111-1111-1111-111111111111",
                          methods=[m],
                          scriptable=True))
        t2 = xpt.Typelib()
        # add a resolved interface
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        t2.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(2, len(t3.interfaces))
        self.assertEqual("IRetval", t3.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t3.interfaces[0].iid)
        self.assertEqual("IFoo", t3.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[1].iid)
        self.assert_(t3.interfaces[1].resolved)
        # Ensure that IRetval's method's return value type has been updated.
        self.assertEqual(1, len(t3.interfaces[0].methods))
        self.assert_(t3.interfaces[0].methods[0].result.type.iface.resolved)
        self.assertEqual(t3.interfaces[1],
                         t3.interfaces[0].methods[0].result.type.iface)

        # t1 has a resolved interface. t2 has an unresolved version and
        # an interface that uses the unresolved interface as a return value
        # from a method.
        t1 = xpt.Typelib()
        # add a resolved interface
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        t1.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t2 = xpt.Typelib()
        # add an unresolved interface
        i = xpt.Interface("IFoo")
        t2.interfaces.append(i)
        # add an interface that uses the unresolved interface
        # as a return value in a method.
        p = xpt.Param(xpt.InterfaceType(i))
        m = xpt.Method("ReturnIface", p)
        t2.interfaces.append(
            xpt.Interface("IRetval",
                          iid="11111111-1111-1111-1111-111111111111",
                          methods=[m],
                          scriptable=True))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(2, len(t3.interfaces))
        self.assertEqual("IRetval", t3.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t3.interfaces[0].iid)
        self.assertEqual("IFoo", t3.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[1].iid)
        self.assert_(t3.interfaces[1].resolved)
        # Ensure that IRetval's method's return value type has been updated.
        self.assertEqual(1, len(t3.interfaces[0].methods))
        self.assert_(t3.interfaces[0].methods[0].result.type.iface.resolved)
        self.assertEqual(t3.interfaces[1],
                         t3.interfaces[0].methods[0].result.type.iface)
Пример #15
0
    def test_mergeReplaceParents(self):
        """
        Test that merging an interface results in other interfaces' parent
        member being updated properly.

        """
        # t1 has an unresolved interface, t2 has a resolved version,
        # but t1 also has another interface whose parent is the unresolved
        # interface.
        t1 = xpt.Typelib()
        # add an unresolved interface
        pi = xpt.Interface("IFoo")
        t1.interfaces.append(pi)
        # add a child of the unresolved interface
        t1.interfaces.append(
            xpt.Interface("IChild",
                          iid="11111111-1111-1111-1111-111111111111",
                          resolved=True,
                          parent=pi,
                          scriptable=True))
        t2 = xpt.Typelib()
        # add a resolved interface
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        t2.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(2, len(t3.interfaces))
        self.assertEqual("IChild", t3.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t3.interfaces[0].iid)
        self.assertEqual("IFoo", t3.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[1].iid)
        self.assert_(t3.interfaces[0].resolved)
        # Ensure that IChild's parent has been updated
        self.assertEqual(t3.interfaces[1], t3.interfaces[0].parent)
        self.assert_(t3.interfaces[0].parent.resolved)

        # t1 has a resolved interface, t2 has an unresolved version,
        # but t2 also has another interface whose parent is the unresolved
        # interface.
        t1 = xpt.Typelib()
        # add a resolved interface
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        t1.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m],
                          scriptable=True))
        t2 = xpt.Typelib()
        # add an unresolved interface
        pi = xpt.Interface("IFoo")
        t2.interfaces.append(pi)
        # add a child of the unresolved interface
        t2.interfaces.append(
            xpt.Interface("IChild",
                          iid="11111111-1111-1111-1111-111111111111",
                          resolved=True,
                          parent=pi,
                          scriptable=True))
        t3 = xpt.xpt_link([t1, t2])

        self.assertEqual(2, len(t3.interfaces))
        self.assertEqual("IChild", t3.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t3.interfaces[0].iid)
        self.assertEqual("IFoo", t3.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t3.interfaces[1].iid)
        self.assert_(t3.interfaces[0].resolved)
        # Ensure that IChild's parent has been updated
        self.assertEqual(t3.interfaces[1], t3.interfaces[0].parent)
        self.assert_(t3.interfaces[0].parent.resolved)
Пример #16
0
    def test_methods(self):
        p = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        m = xpt.Method("Bar", p)
        i = xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m])
        t = xpt.Typelib(interfaces=[i])
        self.checkRoundtrip(t)
        # add some more methods
        i.methods.append(
            xpt.Method("One",
                       xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                       params=[
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int64)),
                           xpt.Param(
                               xpt.SimpleType(xpt.Type.Tags.float,
                                              pointer=True))
                       ]))
        self.checkRoundtrip(t)
        # test some other types (should really be more thorough)
        i.methods.append(
            xpt.Method("Two",
                       xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                       params=[
                           xpt.Param(
                               xpt.SimpleType(xpt.Type.Tags.UTF8String,
                                              pointer=True)),
                           xpt.Param(
                               xpt.SimpleType(xpt.Type.Tags.wchar_t_ptr,
                                              pointer=True))
                       ]))
        self.checkRoundtrip(t)
        # add a method with an InterfaceType argument
        bar = xpt.Interface("IBar")
        t.interfaces.append(bar)
        i.methods.append(
            xpt.Method("IFaceMethod",
                       xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                       params=[xpt.Param(xpt.InterfaceType(bar))]))
        self.checkRoundtrip(t)

        # add a method with an InterfaceIsType argument
        i.methods.append(
            xpt.Method("IFaceIsMethod",
                       xpt.Param(xpt.SimpleType(xpt.Type.Tags.void)),
                       params=[
                           xpt.Param(xpt.InterfaceIsType(1)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.nsIID))
                       ]))
        self.checkRoundtrip(t)

        # add a method with an ArrayType argument
        i.methods.append(
            xpt.Method("ArrayMethod",
                       xpt.Param(xpt.SimpleType(xpt.Type.Tags.void)),
                       params=[
                           xpt.Param(
                               xpt.ArrayType(
                                   xpt.SimpleType(xpt.Type.Tags.int32), 1, 2)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                       ]))
        self.checkRoundtrip(t)

        # add a method with a StringWithSize and WideStringWithSize arguments
        i.methods.append(
            xpt.Method("StringWithSizeMethod",
                       xpt.Param(xpt.SimpleType(xpt.Type.Tags.void)),
                       params=[
                           xpt.Param(xpt.StringWithSizeType(1, 2)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                           xpt.Param(xpt.WideStringWithSizeType(4, 5)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                           xpt.Param(xpt.SimpleType(xpt.Type.Tags.int32)),
                       ]))
        self.checkRoundtrip(t)
Пример #17
0
    def test_mergeReplaceParams(self):
        """
        Test that merging an interface correctly updates InterfaceType
        params on methods of other interfaces.

        """
        # t1 has an unresolved interface and an interface that uses the
        # unresolved interface as a param value in a method. t2
        # has a resolved version of the unresolved interface.
        t1 = xpt.Typelib()
        # add an unresolved interface
        i = xpt.Interface("IFoo")
        t1.interfaces.append(i)
        # add an interface that uses the unresolved interface
        # as a param value in a method.
        vp = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        p = xpt.Param(xpt.InterfaceType(i))
        m = xpt.Method("IfaceParam", vp, params=[p])
        t1.interfaces.append(
            xpt.Interface("IParam",
                          iid="11111111-1111-1111-1111-111111111111",
                          methods=[m]))
        t2 = xpt.Typelib()
        # add a resolved interface
        m = xpt.Method("Bar", vp)
        t2.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m]))
        t1.merge(t2)

        self.assertEqual(2, len(t1.interfaces))
        self.assertEqual("IParam", t1.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t1.interfaces[0].iid)
        self.assertEqual("IFoo", t1.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t1.interfaces[1].iid)
        self.assert_(t1.interfaces[1].resolved)
        # Ensure that IRetval's method's param type has been updated.
        self.assertEqual(1, len(t1.interfaces[0].methods))
        self.assert_(t1.interfaces[0].methods[0].params[0].type.iface.resolved)
        self.assertEqual(t1.interfaces[1],
                         t1.interfaces[0].methods[0].params[0].type.iface)

        # t1 has a resolved interface. t2 has an unresolved version
        # and an interface that uses the unresolved interface as a
        # param value in a method.
        t1 = xpt.Typelib()
        # add a resolved interface
        m = xpt.Method("Bar", vp)
        t1.interfaces.append(
            xpt.Interface("IFoo",
                          iid="11223344-5566-7788-9900-aabbccddeeff",
                          methods=[m]))
        t2 = xpt.Typelib()
        # add an unresolved interface
        i = xpt.Interface("IFoo")
        t2.interfaces.append(i)
        # add an interface that uses the unresolved interface
        # as a param value in a method.
        vp = xpt.Param(xpt.SimpleType(xpt.Type.Tags.void))
        p = xpt.Param(xpt.InterfaceType(i))
        m = xpt.Method("IfaceParam", vp, params=[p])
        t2.interfaces.append(
            xpt.Interface("IParam",
                          iid="11111111-1111-1111-1111-111111111111",
                          methods=[m]))
        t1.merge(t2)

        self.assertEqual(2, len(t1.interfaces))
        self.assertEqual("IParam", t1.interfaces[0].name)
        self.assertEqual("11111111-1111-1111-1111-111111111111",
                         t1.interfaces[0].iid)
        self.assertEqual("IFoo", t1.interfaces[1].name)
        self.assertEqual("11223344-5566-7788-9900-aabbccddeeff",
                         t1.interfaces[1].iid)
        self.assert_(t1.interfaces[1].resolved)
        # Ensure that IRetval's method's param type has been updated.
        self.assertEqual(1, len(t1.interfaces[0].methods))
        self.assert_(t1.interfaces[0].methods[0].params[0].type.iface.resolved)
        self.assertEqual(t1.interfaces[1],
                         t1.interfaces[0].methods[0].params[0].type.iface)