Python sample.VirtualMethods類代碼示例

 def testForInfiniteRecursion(self):
     def myVirtualMethod0(obj, pt, val, cpx, b):
         self.call_counter += 1
         return VirtualMethods.virtualMethod0(obj, pt, val, cpx, b)
     vm = VirtualMethods()
     vm.virtualMethod0 = types.MethodType(myVirtualMethod0, vm, VirtualMethods)
     pt, val, cpx, b = Point(1.1, 2.2), 4, complex(3.3, 4.4), True
     vm.virtualMethod0(pt, val, cpx, b)
     self.assertEqual(self.call_counter, 1)

    def testMonkeyPatchOnVirtualMethod(self):
        '''Injects new 'virtualMethod0' on a VirtualMethods instance and makes C++ call it.'''
        vm = VirtualMethods()
        pt, val, cpx, b = Point(1.1, 2.2), 4, complex(3.3, 4.4), True

        result1 = vm.virtualMethod0(pt, val, cpx, b)
        result2 = vm.callVirtualMethod0(pt, val, cpx, b)
        self.assertEqual(result1, result2)
        self.assertEqual(result1, VirtualMethods.virtualMethod0(vm, pt, val, cpx, b))

        def myVirtualMethod0(obj, pt, val, cpx, b):
            self.duck_method_called = True
            return VirtualMethods.virtualMethod0(obj, pt, val, cpx, b) * self.multiplier
        vm.virtualMethod0 = types.MethodType(myVirtualMethod0, vm, VirtualMethods)

        result1 = vm.callVirtualMethod0(pt, val, cpx, b)
        self.assert_(self.duck_method_called)

        result2 = vm.virtualMethod0(pt, val, cpx, b)
        self.assertEqual(result1, result2)
        self.assertEqual(result1, VirtualMethods.virtualMethod0(vm, pt, val, cpx, b) * self.multiplier)

        # This is done to decrease the refcount of the vm object
        # allowing the object wrapper to be deleted before the
        # BindingManager. This is useful when compiling Shiboken
        # for debug, since the BindingManager destructor has an
        # assert that checks if the wrapper mapper is empty.
        vm.virtualMethod0 = None

 def __init__(self):
     VirtualMethods.__init__(self)
     self.name_called = False
     self.sum0_called = False
     self.sum1_called = False
     self.sum2_called = False
     self.sum3_called = False
     self.sum4_called = False
     self.sumThree_called = False
     self.callMe_called = 0
     self.multiplier = 12345

    def testMonkeyPatchOnVirtualMethodWithInheritance(self):
        '''Injects new 'virtualMethod0' on an object that inherits from VirtualMethods and makes C++ call it.'''
        duck = Duck()
        pt, val, cpx, b = Point(1.1, 2.2), 4, complex(3.3, 4.4), True

        result1 = duck.virtualMethod0(pt, val, cpx, b)
        result2 = duck.callVirtualMethod0(pt, val, cpx, b)
        self.assertEqual(result1, result2)
        self.assertEqual(result1, VirtualMethods.virtualMethod0(duck, pt, val, cpx, b))

        def myVirtualMethod0(obj, pt, val, cpx, b):
            self.duck_method_called = True
            return VirtualMethods.virtualMethod0(obj, pt, val, cpx, b) * self.multiplier
        duck.virtualMethod0 = types.MethodType(myVirtualMethod0, duck, Duck)

        result1 = duck.callVirtualMethod0(pt, val, cpx, b)
        self.assert_(self.duck_method_called)

        result2 = duck.virtualMethod0(pt, val, cpx, b)
        self.assertEqual(result1, result2)
        self.assertEqual(result1, VirtualMethods.virtualMethod0(duck, pt, val, cpx, b) * self.multiplier)

        duck.virtualMethod0 = None

 def sum1(self, a0, a1, a2):
     self.sum1_called = True
     return VirtualMethods.sum1(self, a0, a1, a2) * self.multiplier

 def myVirtualMethod0(obj, pt, val, cpx, b):
     self.duck_method_called = True
     return VirtualMethods.virtualMethod0(obj, pt, val, cpx, b) * self.multiplier

 def testCallNonReimplementedMethodWithString(self):
     """Calls createStr method from C++ with a Python string argument."""
     obj = VirtualMethods()
     ok, string = obj.callCreateStr("foo")
     self.assertTrue(ok)
     self.assertEqual(string, Str("foo"))

 def __init__(self):
     ObjectType.__init__(self)
     VirtualMethods.__init__(self)

class VirtualMethodsTest(unittest.TestCase):
    '''Test case for modified virtual methods.'''

    def setUp(self):
        self.vm = VirtualMethods()
        self.evm = ExtendedVirtualMethods()

    def tearDown(self):
        del self.vm
        del self.evm

    def testModifiedVirtualMethod0(self):
        '''Renamed virtual method.'''
        a0, a1, a2 = 2, 3, 5
        result0 = self.vm.callSum0(a0, a1, a2)
        result1 = self.vm.sumThree(a0, a1, a2)
        self.assertEqual(result0, a0 + a1 + a2)
        self.assertEqual(result0, result1)
        self.assertRaises(AttributeError, getattr, self.vm, 'sum0')

    def testReimplementedModifiedVirtualMethod0(self):
        '''Override of a renamed virtual method.'''
        a0, a1, a2 = 2, 3, 5
        result0 = self.vm.callSum0(a0, a1, a2)
        result1 = self.vm.sumThree(a0, a1, a2)
        result2 = self.evm.callSum0(a0, a1, a2)
        self.assertEqual(result0, result1)
        self.assertEqual(result0 * self.evm.multiplier, result2)
        self.assert_(self.evm.sumThree_called)
        self.assertFalse(self.evm.sum0_called)

    def testModifiedVirtualMethod1(self):
        '''Virtual method with three arguments and the last one
        changed to have the default value set to 1000.'''
        a0, a1, a2 = 2, 3, 5
        result0 = self.vm.sum1(a0, a1)
        self.assertEqual(result0, a0 + a1 + 1000)
        result1 = self.vm.sum1(a0, a1, a2)
        result2 = self.vm.callSum1(a0, a1, a2)
        self.assertEqual(result1, result2)

    def testReimplementedModifiedVirtualMethod1(self):
        '''Override of the virtual method with three arguments and
        the last one changed to have the default value set to 1000.'''
        a0, a1 = 2, 3
        result0 = self.vm.sum1(a0, a1)
        result1 = self.evm.callSum1(a0, a1, 1000)
        self.assertEqual(result0 * self.evm.multiplier, result1)
        self.assert_(self.evm.sum1_called)

    def testModifiedVirtualMethod2(self):
        '''Virtual method originally with three arguments, the last
        one was removed and the default value set to 2000.'''
        a0, a1 = 1, 2
        result0 = self.vm.sum2(a0, a1)
        self.assertEqual(result0, a0 + a1 + 2000)
        result1 = self.vm.sum2(a0, a1)
        result2 = self.vm.callSum2(a0, a1, 2000)
        self.assertEqual(result1, result2)
        self.assertRaises(TypeError, self.vm.sum2, 1, 2, 3)

    def testReimplementedModifiedVirtualMethod2(self):
        '''Override of the virtual method originally with three arguments,
        the last one was removed and the default value set to 2000.'''
        a0, a1 = 1, 2
        ignored = 54321
        result0 = self.vm.sum2(a0, a1)
        result1 = self.evm.callSum2(a0, a1, ignored)
        self.assertEqual(result0 * self.evm.multiplier, result1)
        self.assert_(self.evm.sum2_called)

    def testModifiedVirtualMethod3(self):
        '''Virtual method originally with three arguments have the second
        one removed and replaced by custom code that replaces it by the sum
        of the first and the last arguments.'''
        a0, a1 = 1, 2
        result0 = self.vm.sum3(a0, a1)
        self.assertEqual(result0, a0 + (a0 + a1) + a1)
        result1 = self.vm.callSum3(a0, 10, a1)
        self.assertNotEqual(result0, result1)
        result2 = self.vm.callSum3(a0, a0 + a1, a1)
        self.assertEqual(result0, result2)
        self.assertRaises(TypeError, self.vm.sum3, 1, 2, 3)

    def testReimplementedModifiedVirtualMethod3(self):
        '''Override of the virtual method originally with three arguments
        have the second one removed and replaced by custom code that
        replaces it by the sum of the first and the last arguments.'''
        a0, a1 = 1, 2
        ignored = 54321
        result0 = self.vm.sum3(a0, a1)
        result1 = self.evm.callSum3(a0, ignored, a1)
        self.assertEqual(result0 * self.evm.multiplier, result1)
        self.assert_(self.evm.sum3_called)

    def testModifiedVirtualMethod4(self):
        '''Virtual method originally with three arguments, the
        last one was removed and the default value set to 3000.'''
        a0, a1 = 1, 2
        default_value = 3000
#.........這裏部分代碼省略.........

 def testCallNonReimplementedMethodWithString(self):
     '''Calls createStr method from C++ with a Python string argument.'''
     obj = VirtualMethods()
     ok, string = obj.callCreateStr('foo')
     self.assert_(ok)
     self.assertEqual(string, Str('foo'))

 def testCallNonReimplementedMethodWithNone(self):
     '''Calls createStr method from C++ with a None argument.'''
     obj = VirtualMethods()
     ok, string = obj.callCreateStr(None)
     self.assertFalse(ok)
     self.assertEqual(string, None)

 def testSimpleCallWithString(self):
     '''Simple call to createStr method with a Python string argument.'''
     obj = VirtualMethods()
     ok, string = obj.createStr('foo')
     self.assert_(ok)
     self.assertEqual(string, Str('foo'))

 def testSimpleCallWithNone(self):
     '''Simple call to createStr method with a None argument.'''
     obj = VirtualMethods()
     ok, string = obj.createStr(None)
     self.assertFalse(ok)
     self.assertEqual(string, None)

 def createStr(self, text):
     ext_text = text
     if text is not None:
         ext_text = self.prefix + text
     print ext_text
     return VirtualMethods.createStr(self, ext_text)

 def __init__(self):
     VirtualMethods.__init__(self)
     self.prefix = 'Ext'