Python mock.side_effect方法代码示例

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_side_effect_iterator(self):
        mock = Mock(side_effect=iter([1, 2, 3]))
        self.assertEqual([mock(), mock(), mock()], [1, 2, 3])
        self.assertRaises(StopIteration, mock)

        mock = MagicMock(side_effect=['a', 'b', 'c'])
        self.assertEqual([mock(), mock(), mock()], ['a', 'b', 'c'])
        self.assertRaises(StopIteration, mock)

        mock = Mock(side_effect='ghi')
        self.assertEqual([mock(), mock(), mock()], ['g', 'h', 'i'])
        self.assertRaises(StopIteration, mock)

        class Foo(object):
            pass
        mock = MagicMock(side_effect=Foo)
        self.assertIsInstance(mock(), Foo)

        mock = Mock(side_effect=Iter())
        self.assertEqual([mock(), mock(), mock(), mock()],
                         ['this', 'is', 'an', 'iter'])
        self.assertRaises(StopIteration, mock) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_side_effect_setting_iterator(self):
        mock = Mock()
        mock.side_effect = iter([1, 2, 3])
        self.assertEqual([mock(), mock(), mock()], [1, 2, 3])
        self.assertRaises(StopIteration, mock)
        side_effect = mock.side_effect
        self.assertIsInstance(side_effect, type(iter([])))

        mock.side_effect = ['a', 'b', 'c']
        self.assertEqual([mock(), mock(), mock()], ['a', 'b', 'c'])
        self.assertRaises(StopIteration, mock)
        side_effect = mock.side_effect
        self.assertIsInstance(side_effect, type(iter([])))

        this_iter = Iter()
        mock.side_effect = this_iter
        self.assertEqual([mock(), mock(), mock(), mock()],
                         ['this', 'is', 'an', 'iter'])
        self.assertRaises(StopIteration, mock)
        self.assertIs(mock.side_effect, this_iter) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_autospec_side_effect(self):
        # Test for issue17826
        results = [1, 2, 3]
        def effect():
            return results.pop()
        def f():
            pass

        mock = create_autospec(f)
        mock.side_effect = [1, 2, 3]
        self.assertEqual([mock(), mock(), mock()], [1, 2, 3],
                          "side effect not used correctly in create_autospec")
        # Test where side effect is a callable
        results = [1, 2, 3]
        mock = create_autospec(f)
        mock.side_effect = effect
        self.assertEqual([mock(), mock(), mock()], [3, 2, 1],
                          "callable side effect not used correctly") 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_configure_mock(self):
        mock = Mock(foo='bar')
        self.assertEqual(mock.foo, 'bar')

        mock = MagicMock(foo='bar')
        self.assertEqual(mock.foo, 'bar')

        kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33,
                  'foo': MagicMock()}
        mock = Mock(**kwargs)
        self.assertRaises(KeyError, mock)
        self.assertEqual(mock.foo.bar(), 33)
        self.assertIsInstance(mock.foo, MagicMock)

        mock = Mock()
        mock.configure_mock(**kwargs)
        self.assertRaises(KeyError, mock)
        self.assertEqual(mock.foo.bar(), 33)
        self.assertIsInstance(mock.foo, MagicMock) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_side_effect(self):
        mock = Mock()

        def effect(*args, **kwargs):
            raise SystemError('kablooie')

        mock.side_effect = effect
        self.assertRaises(SystemError, mock, 1, 2, fish=3)
        mock.assert_called_with(1, 2, fish=3)

        results = [1, 2, 3]
        def effect():
            return results.pop()
        mock.side_effect = effect

        self.assertEqual([mock(), mock(), mock()], [3, 2, 1],
                          "side effect not used correctly")

        mock = Mock(side_effect=sentinel.SideEffect)
        self.assertEqual(mock.side_effect, sentinel.SideEffect,
                          "side effect in constructor not used")

        def side_effect():
            return DEFAULT
        mock = Mock(side_effect=side_effect, return_value=sentinel.RETURN)
        self.assertEqual(mock(), sentinel.RETURN) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_java_exception_side_effect(self):
        import java
        mock = Mock(side_effect=java.lang.RuntimeException("Boom!"))

        # can't use assertRaises with java exceptions
        try:
            mock(1, 2, fish=3)
        except java.lang.RuntimeException:
            pass
        else:
            self.fail('java exception not raised')
        mock.assert_called_with(1,2, fish=3) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_reset_mock(self):
        parent = Mock()
        spec = ["something"]
        mock = Mock(name="child", parent=parent, spec=spec)
        mock(sentinel.Something, something=sentinel.SomethingElse)
        something = mock.something
        mock.something()
        mock.side_effect = sentinel.SideEffect
        return_value = mock.return_value
        return_value()

        mock.reset_mock()

        self.assertEqual(mock._mock_name, "child",
                         "name incorrectly reset")
        self.assertEqual(mock._mock_parent, parent,
                         "parent incorrectly reset")
        self.assertEqual(mock._mock_methods, spec,
                         "methods incorrectly reset")

        self.assertFalse(mock.called, "called not reset")
        self.assertEqual(mock.call_count, 0, "call_count not reset")
        self.assertEqual(mock.call_args, None, "call_args not reset")
        self.assertEqual(mock.call_args_list, [], "call_args_list not reset")
        self.assertEqual(mock.method_calls, [],
                        "method_calls not initialised correctly: %r != %r" %
                        (mock.method_calls, []))
        self.assertEqual(mock.mock_calls, [])

        self.assertEqual(mock.side_effect, sentinel.SideEffect,
                          "side_effect incorrectly reset")
        self.assertEqual(mock.return_value, return_value,
                          "return_value incorrectly reset")
        self.assertFalse(return_value.called, "return value mock not reset")
        self.assertEqual(mock._mock_children, {'something': something},
                          "children reset incorrectly")
        self.assertEqual(mock.something, something,
                          "children incorrectly cleared")
        self.assertFalse(mock.something.called, "child not reset") 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_exceptional_side_effect(self):
        mock = Mock(side_effect=AttributeError)
        self.assertRaises(AttributeError, mock)

        mock = Mock(side_effect=AttributeError('foo'))
        self.assertRaises(AttributeError, mock) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_baseexceptional_side_effect(self):
        mock = Mock(side_effect=KeyboardInterrupt)
        self.assertRaises(KeyboardInterrupt, mock)

        mock = Mock(side_effect=KeyboardInterrupt('foo'))
        self.assertRaises(KeyboardInterrupt, mock) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_side_effect_iterator_exceptions(self):
        for Klass in Mock, MagicMock:
            iterable = (ValueError, 3, KeyError, 6)
            m = Klass(side_effect=iterable)
            self.assertRaises(ValueError, m)
            self.assertEqual(m(), 3)
            self.assertRaises(KeyError, m)
            self.assertEqual(m(), 6) 

# 需要导入模块: from unittest import mock [as 别名]
# 或者: from unittest.mock import side_effect [as 别名]
def test_autospec_side_effect_exception(self):
        # Test for issue 23661
        def f():
            pass

        mock = create_autospec(f)
        mock.side_effect = ValueError('Bazinga!')
        self.assertRaisesRegex(ValueError, 'Bazinga!', mock)