How to use nullPassedWhenCreatingInOrder method of org.mockito.internal.exceptions.Reporter class

Best Mockito code snippet using org.mockito.internal.exceptions.Reporter.nullPassedWhenCreatingInOrder

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...10import static org.mockito.internal.exceptions.Reporter.notAMockPassedToVerifyNoMoreInteractions;11import static org.mockito.internal.exceptions.Reporter.notAMockPassedWhenCreatingInOrder;12import static org.mockito.internal.exceptions.Reporter.nullPassedToVerify;13import static org.mockito.internal.exceptions.Reporter.nullPassedToVerifyNoMoreInteractions;14import static org.mockito.internal.exceptions.Reporter.nullPassedWhenCreatingInOrder;15import static org.mockito.internal.progress.ThreadSafeMockingProgress.mockingProgress;16import static org.mockito.internal.util.MockUtil.createMock;17import static org.mockito.internal.util.MockUtil.getMockHandler;18import static org.mockito.internal.util.MockUtil.isMock;19import static org.mockito.internal.util.MockUtil.resetMock;20import static org.mockito.internal.util.MockUtil.typeMockabilityOf;21import static org.mockito.internal.verification.VerificationModeFactory.noMoreInteractions;22import java.util.Arrays;23import java.util.List;24import org.mockito.InOrder;25import org.mockito.MockSettings;26import org.mockito.MockingDetails;27import org.mockito.exceptions.misusing.NotAMockException;28import org.mockito.internal.creation.MockSettingsImpl;29import org.mockito.internal.invocation.finder.VerifiableInvocationsFinder;30import org.mockito.internal.progress.MockingProgress;31import org.mockito.internal.stubbing.InvocationContainer;32import org.mockito.internal.stubbing.OngoingStubbingImpl;33import org.mockito.internal.stubbing.StubberImpl;34import org.mockito.internal.util.DefaultMockingDetails;35import org.mockito.internal.util.MockUtil;36import org.mockito.internal.verification.MockAwareVerificationMode;37import org.mockito.internal.verification.VerificationDataImpl;38import org.mockito.internal.verification.VerificationModeFactory;39import org.mockito.internal.verification.api.InOrderContext;40import org.mockito.internal.verification.api.VerificationDataInOrder;41import org.mockito.internal.verification.api.VerificationDataInOrderImpl;42import org.mockito.invocation.Invocation;43import org.mockito.mock.MockCreationSettings;44import org.mockito.stubbing.OngoingStubbing;45import org.mockito.stubbing.Stubber;46import org.mockito.verification.VerificationMode;47@SuppressWarnings("unchecked")48public class MockitoCore {49 public boolean isTypeMockable(Class<?> typeToMock) {50 return typeMockabilityOf(typeToMock).mockable();51 }52 public <T> T mock(Class<T> typeToMock, MockSettings settings) {53 if (!MockSettingsImpl.class.isInstance(settings)) {54 throw new IllegalArgumentException("Unexpected implementation of '" + settings.getClass().getCanonicalName() + "'\n" + "At the moment, you cannot provide your own implementations of that class.");55 }56 MockSettingsImpl impl = MockSettingsImpl.class.cast(settings);57 MockCreationSettings<T> creationSettings = impl.confirm(typeToMock);58 T mock = createMock(creationSettings);59 mockingProgress().mockingStarted(mock, typeToMock);60 return mock;61 }62 public <T> OngoingStubbing<T> when(T methodCall) {63 MockingProgress mockingProgress = mockingProgress();64 mockingProgress.stubbingStarted();65 @SuppressWarnings("unchecked")66 OngoingStubbing<T> stubbing = (OngoingStubbing<T>) mockingProgress.pullOngoingStubbing();67 if (stubbing == null) {68 mockingProgress.reset();69 throw missingMethodInvocation();70 }71 return stubbing;72 }73 public <T> T verify(T mock, VerificationMode mode) {74 if (mock == null) {75 throw nullPassedToVerify();76 }77 if (!isMock(mock)) {78 throw notAMockPassedToVerify(mock.getClass());79 }80 MockingProgress mockingProgress = mockingProgress();81 VerificationMode actualMode = mockingProgress.maybeVerifyLazily(mode);82 mockingProgress.verificationStarted(new MockAwareVerificationMode(mock, actualMode));83 return mock;84 }85 public <T> void reset(T... mocks) {86 MockingProgress mockingProgress = mockingProgress();87 mockingProgress.validateState();88 mockingProgress.reset();89 mockingProgress.resetOngoingStubbing();90 for (T m : mocks) {91 resetMock(m);92 }93 }94 public <T> void clearInvocations(T... mocks) {95 MockingProgress mockingProgress = mockingProgress();96 mockingProgress.validateState();97 mockingProgress.reset();98 mockingProgress.resetOngoingStubbing();99 for (T m : mocks) {100 getMockHandler(m).getInvocationContainer().clearInvocations();101 }102 }103 public void verifyNoMoreInteractions(Object... mocks) {104 assertMocksNotEmpty(mocks);105 mockingProgress().validateState();106 for (Object mock : mocks) {107 try {108 if (mock == null) {109 throw nullPassedToVerifyNoMoreInteractions();110 }111 InvocationContainer invocations = getMockHandler(mock).getInvocationContainer();112 VerificationDataImpl data = new VerificationDataImpl(invocations, null);113 noMoreInteractions().verify(data);114 } catch (NotAMockException e) {115 throw notAMockPassedToVerifyNoMoreInteractions();116 }117 }118 }119 public void verifyNoMoreInteractionsInOrder(List<Object> mocks, InOrderContext inOrderContext) {120 mockingProgress().validateState();121 VerificationDataInOrder data = new VerificationDataInOrderImpl(inOrderContext, VerifiableInvocationsFinder.find(mocks), null);122 VerificationModeFactory.noMoreInteractions().verifyInOrder(data);123 }124 private void assertMocksNotEmpty(Object[] mocks) {125 if (mocks == null || mocks.length == 0) {126 throw mocksHaveToBePassedToVerifyNoMoreInteractions();127 }128 }129 public InOrder inOrder(Object... mocks) {130 if (mocks == null || mocks.length == 0) {131 throw mocksHaveToBePassedWhenCreatingInOrder();132 }133 for (Object mock : mocks) {134 if (mock == null) {135 throw nullPassedWhenCreatingInOrder();136 }137 if (!isMock(mock)) {138 throw notAMockPassedWhenCreatingInOrder();139 }140 }141 return new InOrderImpl(Arrays.asList(mocks));142 }143 public Stubber stubber() {144 MockingProgress mockingProgress = mockingProgress();145 mockingProgress.stubbingStarted();146 mockingProgress.resetOngoingStubbing();147 return new StubberImpl();148 }149 public void validateMockitoUsage() {...

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nullPassedWhenCreatingInOrder

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1public void test() {2 List mock = mock(List.class);3 mock.add("one");4 mock.add("two");5 mock.add("three");6 InOrder inOrder = inOrder(mock);7 inOrder.verify(mock).add("one");8 inOrder.verify(mock).add("two");9 inOrder.verify(mock).add("three");10}11public void test() {12 List mock = mock(List.class);13 mock.add("one");14 mock.add("two");15 mock.add("three");16 InOrder inOrder = inOrder(mock);17 inOrder.verify(mock).add("one");18 inOrder.verify(mock).add("three");19 inOrder.verify(mock).add("two");20}

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StackOverFlow community discussions

Questions
Discussion

Mockito verify that a specific lambda has been passed as an argument in mock&#39;s method

Mockito: Wanted but not invoked

Ensure non-mocked methods are not called in mockito

Use Mockito to mock some methods but not others

Simulate first call fails, second call succeeds

Why doesn&#39;t IntelliJ Idea recognize my Spek tests?

Testing - how to create Mock object

Using @MockBean in tests forces reloading of Application Context

The type MockitoAnnotations.Mock is deprecated

Mockito bypass static method for testing

Yes, you can. The trick here is that you have to get to the instance of the lambda that is passed to the registerMessage and then execute that expression and then you can verify the result.

For the purpose of a meaningful example I created this Handler class that contains the dispatchMessage that you want to test:

public class Handler {

    private Dispatcher dispatcher = new Dispatcher();

    public void dispatchMessage(MessageHandler handler, String argument1, String argument2, Long argument3) {

        handler.registerMessage(() -> {
            dispatcher.dispatch(argument1,
                    argument2,
                    argument3);
        });

    }

    interface MessageHandler {
        void registerMessage(Runnable run);
    }

    static class Dispatcher {
        void dispatch(String a, String b, long c){
            // Do dispatch
        }
    }
}

What you have to remember is that a lambda expression is just a short hand form to pass a function to a method. In this example the function is the run method of a Runnable. Therefore the method registerMessage of the interface for MessageHandler takes a Runnable as it's argument. I also included an implementation for the Dispatcher, which is called from within registerMessage. The test for this looks like this:

@RunWith(MockitoJUnitRunner.class)
public class HandlerTest {
    @Mock
    private Dispatcher dispatcher;
    @InjectMocks
    private Handler classUnderTest;
    @Captor
    private ArgumentCaptor<Runnable> registerMessageLambdaCaptor;

    @Test
    public void shouldCallDispatchMethod() {
        final String a = "foo";
        final String b = "bar";
        final long c = 42L;

        MessageHandler handler = mock(MessageHandler.class);

        classUnderTest.dispatchMessage(handler, a, b, c);

        verify(handler).registerMessage(registerMessageLambdaCaptor.capture());

        Runnable lambda = registerMessageLambdaCaptor.getValue();

        lambda.run();

        verify(dispatcher).dispatch(a, b, c);
    }
}

There is an ArgumentCaptor for the lambda expression which we use in the first verification of the registerMessage. After that verification we can retrieve the lambda expression from the captor. The type of the lambda expression is Runnable, as defined in the MessageHandler interface. Hence we can call the run method on it and then verify that the dispatch method on the Dispatcher was called with all the appropriate arguments.

https://stackoverflow.com/questions/41462913/mockito-verify-that-a-specific-lambda-has-been-passed-as-an-argument-in-mocks-m

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