How to use can_spy_abstract_classes_with_casted_null method of org.mockitousage.constructor.CreatingMocksWithConstructorTest class

Best Mockito code snippet using org.mockitousage.constructor.CreatingMocksWithConstructorTest.can_spy_abstract_classes_with_casted_null

Source:CreatingMocksWithConstructorTest.java Github

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...60 CreatingMocksWithConstructorTest.AbstractMessage mock = Mockito.mock(CreatingMocksWithConstructorTest.AbstractMessage.class, Mockito.withSettings().useConstructor(new Object[]{ null }).defaultAnswer(Mockito.CALLS_REAL_METHODS));61 Assert.assertNull(mock.getMessage());62 }63 @Test64 public void can_spy_abstract_classes_with_casted_null() {65 CreatingMocksWithConstructorTest.AbstractMessage mock = Mockito.mock(CreatingMocksWithConstructorTest.AbstractMessage.class, Mockito.withSettings().useConstructor(((String) (null))).defaultAnswer(Mockito.CALLS_REAL_METHODS));66 Assert.assertNull(mock.getMessage());67 }68 @Test69 public void can_spy_abstract_classes_with_null_varargs() {70 try {71 Mockito.mock(CreatingMocksWithConstructorTest.AbstractMessage.class, Mockito.withSettings().useConstructor(null).defaultAnswer(Mockito.CALLS_REAL_METHODS));72 Assert.fail();73 } catch (IllegalArgumentException e) {74 assertThat(e).hasMessageContaining(("constructorArgs should not be null. " + "If you need to pass null, please cast it to the right type, e.g.: useConstructor((String) null)"));75 }76 }77 @Test78 public void can_mock_inner_classes() {...

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can_spy_abstract_classes_with_casted_null

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1 symbol: method can_spy_abstract_classes_with_casted_null()2at org.mockito.internal.exceptions.Reporter.cannotMock(Reporter.java:54)3at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:28)4at org.mockito.internal.MockitoCore.mock(MockitoCore.java:59)5at org.mockito.Mockito.mock(Mockito.java:1700)6at org.mockito.Mockito.mock(Mockito.java:1609)7at org.mockitousage.constructor.CreatingMocksWithConstructorTest.can_spy_abstract_classes_with_casted_null(CreatingMocksWithConstructorTest.java:85)8at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)9at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)10at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)11at java.lang.reflect.Method.invoke(Method.java:498)12at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)13at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)14at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)15at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)16at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)17at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)18at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)19at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)20at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)21at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)

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how to setup a call to method of mocked object in mockito without calling the original method itself

You can easily create your own HandlerMethod without mocking. There's a constructor that accepts an Object (the controller) and a Method (the controller method). The easiest way to get a Method is to simply call Class.getMethod(). What you want to do is just create a dummy controller class, and then use that class to get the method. For example

class TestController {
    @Custom
    public void testMethod() {}
}

Method method = TestController.class.getMethod("testMethod");
TestController controller = new TestController();
HandlerMethod handlerMethod = new HandlerMethod(controller, method);

Custom annotation = handlerMethod.getMethodAnnotation(Custom.class);

It's that easy. Below is a complete test.

public class HandlerInterceptorTest {

    @Target(ElementType.METHOD)
    @Retention(RetentionPolicy.RUNTIME)
    private @interface Custom {
    }

    private static class MyHandlerInterceptor implements HandlerInterceptor {

        @Override
        public boolean preHandle(HttpServletRequest req, HttpServletResponse res, Object handler) {
            if (handler instanceof HandlerMethod) {
                HandlerMethod handlerMethod = (HandlerMethod) handler;
                Custom annotation = handlerMethod.getMethodAnnotation(Custom.class);
                if (annotation != null) {
                    return true;
                }
            }
            return false;
        }
    }

    private static class TestController {
        @Custom
        public void testMethodWithAnnotation() {}

        public void testMethodWithoutAnnotation() {}
    }

    @Test
    public void testMethodWithAnnotation() throws Exception {
        Method method = TestController.class.getMethod("testMethodWithAnnotation");
        TestController controller = new TestController();
        HandlerMethod handlerMethod = new HandlerMethod(controller, method);

        MyHandlerInterceptor interceptor = new MyHandlerInterceptor();
        boolean result = interceptor.preHandle(null, null, handlerMethod);

        assertTrue(result);
    }

    @Test
    public void testMethodWithoutAnnotation() throws Exception {
        Method method = TestController.class.getMethod("testMethodWithoutAnnotation");
        TestController controller = new TestController();
        HandlerMethod handlerMethod = new HandlerMethod(controller, method);

        MyHandlerInterceptor interceptor = new MyHandlerInterceptor();
        boolean result = interceptor.preHandle(null, null, handlerMethod);

        assertFalse(result);
    }
}
https://stackoverflow.com/questions/51682442/testing-annotation-based-requestinterceptor

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