TestMu Conference is Back! Future of Testing + AI LambdaTest G2 Announcement

How to use Invocation class of org.mockito.invocation package

Best Mockito code snippet using org.mockito.invocation.Invocation

Source:StaticMockingExperimentTest.java

...18import org.junit.Test;19import org.mockito.exceptions.verification.NoInteractionsWanted;20import org.mockito.exceptions.verification.WantedButNotInvoked;21import org.mockito.exceptions.verification.opentest4j.ArgumentsAreDifferent;22import org.mockito.invocation.Invocation;23import org.mockito.invocation.InvocationFactory;24import org.mockito.invocation.MockHandler;25import org.mockitoutil.TestBase;26/**27 * This test is an experimental use of Mockito API to simulate static mocking.28 * Other frameworks can use it to build good support for static mocking.29 * Keep in mind that clean code never needs to mock static methods.30 * This test is a documentation how it can be done using current public API of Mockito.31 * This test is not only an experiment it also provides coverage for32 * some of the advanced public API exposed for framework integrators.33 * <p>34 * For more rationale behind this experimental test35 * <a href="https://www.linkedin.com/pulse/mockito-vs-powermock-opinionated-dogmatic-static-mocking-faber">see the article</a>.36 */37public class StaticMockingExperimentTest extends TestBase {38    Foo mock = Mockito.mock(Foo.class);39    MockHandler handler = Mockito.mockingDetails(mock).getMockHandler();40    Method staticMethod;41    InvocationFactory.RealMethodBehavior realMethod =42            new InvocationFactory.RealMethodBehavior() {43                @Override44                public Object call() throws Throwable {45                    return null;46                }47            };48    @Before49    public void before() throws Throwable {50        staticMethod = Foo.class.getDeclaredMethod("staticMethod", String.class);51    }52    @SuppressWarnings({"CheckReturnValue", "MockitoUsage"})53    @Test54    public void verify_static_method() throws Throwable {55        // register staticMethod call on mock56        Invocation invocation =57                Mockito.framework()58                        .getInvocationFactory()59                        .createInvocation(60                                mock,61                                withSettings().build(Foo.class),62                                staticMethod,63                                realMethod,64                                "some arg");65        handler.handle(invocation);66        // verify staticMethod on mock67        // Mockito cannot capture static methods so we will simulate this scenario in 3 steps:68        // 1. Call standard 'verify' method. Internally, it will add verificationMode to the thread69        // local state.70        //  Effectively, we indicate to Mockito that right now we are about to verify a method call71        // on this mock.72        verify(mock);73        // 2. Create the invocation instance using the new public API74        //  Mockito cannot capture static methods but we can create an invocation instance of that75        // static invocation76        Invocation verification =77                Mockito.framework()78                        .getInvocationFactory()79                        .createInvocation(80                                mock,81                                withSettings().build(Foo.class),82                                staticMethod,83                                realMethod,84                                "some arg");85        // 3. Make Mockito handle the static method invocation86        //  Mockito will find verification mode in thread local state and will try verify the87        // invocation88        handler.handle(verification);89        // verify zero times, method with different argument90        verify(mock, times(0));91        Invocation differentArg =92                Mockito.framework()93                        .getInvocationFactory()94                        .createInvocation(95                                mock,96                                withSettings().build(Foo.class),97                                staticMethod,98                                realMethod,99                                "different arg");100        handler.handle(differentArg);101    }102    @SuppressWarnings({"CheckReturnValue", "MockitoUsage"})103    @Test104    public void verification_failure_static_method() throws Throwable {105        // register staticMethod call on mock106        Invocation invocation =107                Mockito.framework()108                        .getInvocationFactory()109                        .createInvocation(110                                mock,111                                withSettings().build(Foo.class),112                                staticMethod,113                                realMethod,114                                "foo");115        handler.handle(invocation);116        // verify staticMethod on mock117        verify(mock);118        Invocation differentArg =119                Mockito.framework()120                        .getInvocationFactory()121                        .createInvocation(122                                mock,123                                withSettings().build(Foo.class),124                                staticMethod,125                                realMethod,126                                "different arg");127        try {128            handler.handle(differentArg);129            fail();130        } catch (ArgumentsAreDifferent e) {131        }132    }133    @Test134    public void stubbing_static_method() throws Throwable {135        // register staticMethod call on mock136        Invocation invocation =137                Mockito.framework()138                        .getInvocationFactory()139                        .createInvocation(140                                mock,141                                withSettings().build(Foo.class),142                                staticMethod,143                                realMethod,144                                "foo");145        handler.handle(invocation);146        // register stubbing147        when(null).thenReturn("hey");148        // validate stubbed return value149        assertEquals("hey", handler.handle(invocation));150        assertEquals("hey", handler.handle(invocation));151        // default null value is returned if invoked with different argument152        Invocation differentArg =153                Mockito.framework()154                        .getInvocationFactory()155                        .createInvocation(156                                mock,157                                withSettings().build(Foo.class),158                                staticMethod,159                                realMethod,160                                "different arg");161        assertEquals(null, handler.handle(differentArg));162    }163    @Test164    public void do_answer_stubbing_static_method() throws Throwable {165        // register stubbed return value166        Object ignored = doReturn("hey").when(mock);167        // complete stubbing by triggering an invocation that needs to be stubbed168        Invocation invocation =169                Mockito.framework()170                        .getInvocationFactory()171                        .createInvocation(172                                mock,173                                withSettings().build(Foo.class),174                                staticMethod,175                                realMethod,176                                "foo");177        handler.handle(invocation);178        // validate stubbed return value179        assertEquals("hey", handler.handle(invocation));180        assertEquals("hey", handler.handle(invocation));181        // default null value is returned if invoked with different argument182        Invocation differentArg =183                Mockito.framework()184                        .getInvocationFactory()185                        .createInvocation(186                                mock,187                                withSettings().build(Foo.class),188                                staticMethod,189                                realMethod,190                                "different arg");191        assertEquals(null, handler.handle(differentArg));192    }193    @Test194    public void verify_no_more_interactions() throws Throwable {195        // works for now because there are not interactions196        verifyNoMoreInteractions(mock);197        // register staticMethod call on mock198        Invocation invocation =199                Mockito.framework()200                        .getInvocationFactory()201                        .createInvocation(202                                mock,203                                withSettings().build(Foo.class),204                                staticMethod,205                                realMethod,206                                "foo");207        handler.handle(invocation);208        // fails now because we have one static invocation recorded209        try {210            verifyNoMoreInteractions(mock);211            fail();212        } catch (NoInteractionsWanted e) {213        }214    }215    @Test216    public void stubbing_new() throws Throwable {217        Constructor<Foo> ctr = Foo.class.getConstructor(String.class);218        Method adapter = ConstructorMethodAdapter.class.getDeclaredMethods()[0];219        // stub constructor220        Object ignored = doReturn(new Foo("hey!")).when(mock);221        Invocation constructor =222                Mockito.framework()223                        .getInvocationFactory()224                        .createInvocation(225                                mock,226                                withSettings().build(Foo.class),227                                adapter,228                                realMethod,229                                ctr,230                                "foo");231        handler.handle(constructor);232        // test stubbing233        Object result = handler.handle(constructor);234        assertEquals("foo:hey!", result.toString());235        // stubbing miss236        Invocation differentArg =237                Mockito.framework()238                        .getInvocationFactory()239                        .createInvocation(240                                mock,241                                withSettings().build(Foo.class),242                                adapter,243                                realMethod,244                                ctr,245                                "different arg");246        Object result2 = handler.handle(differentArg);247        assertEquals(null, result2);248    }249    @SuppressWarnings({"CheckReturnValue", "MockitoUsage"})250    @Test251    public void verifying_new() throws Throwable {252        Constructor<Foo> ctr = Foo.class.getConstructor(String.class);253        Method adapter = ConstructorMethodAdapter.class.getDeclaredMethods()[0];254        // invoke constructor255        Invocation constructor =256                Mockito.framework()257                        .getInvocationFactory()258                        .createInvocation(259                                mock,260                                withSettings().build(Foo.class),261                                adapter,262                                realMethod,263                                ctr,264                                "matching arg");265        handler.handle(constructor);266        // verify successfully267        verify(mock);268        handler.handle(constructor);269        // verification failure270        verify(mock);271        Invocation differentArg =272                Mockito.framework()273                        .getInvocationFactory()274                        .createInvocation(275                                mock,276                                withSettings().build(Foo.class),277                                adapter,278                                realMethod,279                                ctr,280                                "different arg");281        try {282            handler.handle(differentArg);283            fail();284        } catch (WantedButNotInvoked e) {285            assertThat(e.getMessage()).contains("matching arg").contains("different arg");286        }287    }288    static class Foo {...

Source:InvocationNotifierHandlerTest.java

...18import org.mockito.Mock;19import org.mockito.Spy;20import org.mockito.exceptions.base.MockitoException;21import org.mockito.internal.creation.MockSettingsImpl;22import org.mockito.invocation.Invocation;23import org.mockito.junit.MockitoJUnitRunner;24import org.mockito.listeners.InvocationListener;25import org.mockito.listeners.MethodInvocationReport;26import org.mockito.mock.MockCreationSettings;27import org.mockito.stubbing.Answer;28@RunWith(MockitoJUnitRunner.class)29@SuppressWarnings("unchecked")30public class InvocationNotifierHandlerTest {31    private static final String SOME_LOCATION = "some location";32    private static final RuntimeException SOME_EXCEPTION = new RuntimeException();33    private static final OutOfMemoryError SOME_ERROR = new OutOfMemoryError();34    private static final Answer<?> SOME_ANSWER = mock(Answer.class);35    @Mock private InvocationListener listener1;36    @Mock private InvocationListener listener2;37    @Spy private CustomListener customListener;38    @Mock private Invocation invocation;39    @Mock private MockHandlerImpl<ArrayList<Answer<?>>> mockHandler;40    private InvocationNotifierHandler<ArrayList<Answer<?>>> notifier;41    @Before42    public void setUp() throws Exception {43        notifier =44                new InvocationNotifierHandler<ArrayList<Answer<?>>>(45                        mockHandler,46                        (MockCreationSettings<ArrayList<Answer<?>>>)47                                new MockSettingsImpl<ArrayList<Answer<?>>>()48                                        .invocationListeners(customListener, listener1, listener2));49    }50    @Test51    public void should_notify_all_listeners_when_calling_delegate_handler() throws Throwable {52        // given53        given(mockHandler.handle(invocation)).willReturn("returned value");54        // when55        notifier.handle(invocation);56        // then57        verify(listener1)58                .reportInvocation(new NotifiedMethodInvocationReport(invocation, "returned value"));59        verify(listener2)60                .reportInvocation(new NotifiedMethodInvocationReport(invocation, "returned value"));61    }62    @Test63    public void should_notify_all_listeners_when_called_delegate_handler_returns_ex()64            throws Throwable {65        // given66        Exception computedException = new Exception("computed");67        given(mockHandler.handle(invocation)).willReturn(computedException);68        // when69        notifier.handle(invocation);70        // then71        verify(listener1)72                .reportInvocation(73                        new NotifiedMethodInvocationReport(invocation, (Object) computedException));74        verify(listener2)75                .reportInvocation(76                        new NotifiedMethodInvocationReport(invocation, (Object) computedException));77    }78    @Test(expected = ParseException.class)79    public void80            should_notify_all_listeners_when_called_delegate_handler_throws_exception_and_rethrow_it()81                    throws Throwable {82        // given83        ParseException parseException = new ParseException("", 0);84        given(mockHandler.handle(invocation)).willThrow(parseException);85        // when86        try {87            notifier.handle(invocation);88            fail();89        } finally {90            // then91            verify(listener1)92                    .reportInvocation(93                            new NotifiedMethodInvocationReport(invocation, parseException));94            verify(listener2)95                    .reportInvocation(96                            new NotifiedMethodInvocationReport(invocation, parseException));97        }98    }99    @Test100    public void should_report_listener_exception() throws Throwable {101        willThrow(new NullPointerException())102                .given(customListener)103                .reportInvocation(any(MethodInvocationReport.class));104        try {105            notifier.handle(invocation);106            fail();107        } catch (MockitoException me) {108            assertThat(me.getMessage())109                    .contains("invocation listener")110                    .contains("CustomListener")111                    .contains("threw an exception")112                    .contains("NullPointerException");113        }114    }115    @Test116    public void should_delegate_all_MockHandlerInterface_to_the_parameterized_MockHandler()117            throws Exception {118        notifier.getInvocationContainer();119        notifier.getMockSettings();120        verify(mockHandler).getInvocationContainer();121        verify(mockHandler).getMockSettings();122    }123    private static class CustomListener implements InvocationListener {124        public void reportInvocation(MethodInvocationReport methodInvocationReport) {125            // nop126        }127    }128}...

Source:MockHandlerImplTest.java

...15import org.mockito.exceptions.base.MockitoException;16import org.mockito.exceptions.misusing.InvalidUseOfMatchersException;17import org.mockito.exceptions.misusing.WrongTypeOfReturnValue;18import org.mockito.internal.creation.MockSettingsImpl;19import org.mockito.internal.invocation.InvocationBuilder;20import org.mockito.internal.invocation.InvocationMatcher;21import org.mockito.internal.invocation.MatchersBinder;22import org.mockito.internal.progress.ArgumentMatcherStorage;23import org.mockito.internal.stubbing.InvocationContainerImpl;24import org.mockito.internal.stubbing.StubbedInvocationMatcher;25import org.mockito.internal.stubbing.answers.Returns;26import org.mockito.internal.verification.VerificationModeFactory;27import org.mockito.invocation.Invocation;28import org.mockito.listeners.InvocationListener;29import org.mockito.listeners.MethodInvocationReport;30import org.mockitoutil.TestBase;31@SuppressWarnings({"unchecked", "serial"})32public class MockHandlerImplTest extends TestBase {33    private StubbedInvocationMatcher stubbedInvocationMatcher =34            mock(StubbedInvocationMatcher.class);35    private Invocation invocation = mock(Invocation.class);36    @Test37    public void should_remove_verification_mode_even_when_invalid_matchers() throws Throwable {38        // given39        Invocation invocation = new InvocationBuilder().toInvocation();40        @SuppressWarnings("rawtypes")41        MockHandlerImpl<?> handler = new MockHandlerImpl(new MockSettingsImpl());42        mockingProgress().verificationStarted(VerificationModeFactory.atLeastOnce());43        handler.matchersBinder =44                new MatchersBinder() {45                    public InvocationMatcher bindMatchers(46                            ArgumentMatcherStorage argumentMatcherStorage, Invocation invocation) {47                        throw new InvalidUseOfMatchersException();48                    }49                };50        try {51            // when52            handler.handle(invocation);53            // then54            fail();55        } catch (InvalidUseOfMatchersException ignored) {56        }57        assertNull(mockingProgress().pullVerificationMode());58    }59    @Test(expected = MockitoException.class)60    public void should_throw_mockito_exception_when_invocation_handler_throws_anything()61            throws Throwable {62        // given63        InvocationListener throwingListener = mock(InvocationListener.class);64        doThrow(new Throwable())65                .when(throwingListener)66                .reportInvocation(any(MethodInvocationReport.class));67        MockHandlerImpl<?> handler = create_correctly_stubbed_handler(throwingListener);68        // when69        handler.handle(invocation);70    }71    @Test(expected = WrongTypeOfReturnValue.class)72    public void should_report_bogus_default_answer() throws Throwable {73        MockSettingsImpl mockSettings = mock(MockSettingsImpl.class);74        MockHandlerImpl<?> handler = new MockHandlerImpl(mockSettings);75        given(mockSettings.getDefaultAnswer()).willReturn(new Returns(AWrongType.WRONG_TYPE));76        @SuppressWarnings("unused") // otherwise cast is not done77        String there_should_not_be_a_CCE_here =78                (String)79                        handler.handle(80                                new InvocationBuilder()81                                        .method(Object.class.getDeclaredMethod("toString"))82                                        .toInvocation());83    }84    private MockHandlerImpl<?> create_correctly_stubbed_handler(85            InvocationListener throwingListener) {86        MockHandlerImpl<?> handler = create_handler_with_listeners(throwingListener);87        stub_ordinary_invocation_with_given_return_value(handler);88        return handler;89    }90    private void stub_ordinary_invocation_with_given_return_value(MockHandlerImpl<?> handler) {91        stub_ordinary_invocation_with_invocation_matcher(handler, stubbedInvocationMatcher);92    }93    private void stub_ordinary_invocation_with_invocation_matcher(94            MockHandlerImpl<?> handler, StubbedInvocationMatcher value) {95        handler.invocationContainer = mock(InvocationContainerImpl.class);96        given(handler.invocationContainer.findAnswerFor(any(Invocation.class))).willReturn(value);97    }98    private MockHandlerImpl<?> create_handler_with_listeners(InvocationListener... listener) {99        @SuppressWarnings("rawtypes")100        MockHandlerImpl<?> handler = new MockHandlerImpl(mock(MockSettingsImpl.class));101        handler.matchersBinder = mock(MatchersBinder.class);102        given(handler.getMockSettings().getInvocationListeners())103                .willReturn(Arrays.asList(listener));104        return handler;105    }106    private static class AWrongType {107        public static final AWrongType WRONG_TYPE = new AWrongType();108    }109}...

Invocation

Using AI Code Generation

1import org.mockito.invocation.Invocation;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4import static org.mockito.Mockito.mock;5import static org.mockito.Mockito.when;6import static org.mockito.Mockito.doAnswer;7import static org.mockito.Mockito.doNothing;8import static org.mockito.Mockito.doThrow;9import static org.mockito.Mockito.doReturn;10import static org.mockito.Mockito.doCallRealMethod;11import static org.mockito.Mockito.doAnswer;12import static org.mockito.Mockito.verify;13import static org.mockito.Mockito.times;14import static org.mockito.Mockito.spy;15import static org.mockito.Mockito.inOrder;16import static org.mockito.Mockito.verifyNoMoreInteractions;17import static org.mockito.Mockito.verifyZeroInteractions;18import static org.mockito.Mockito.never;19import static org.mockito.Mockito.only;20import static org.mockito.Mockito.ignoreStubs;21import static org.mockito.Mockito.timeout;22import static org.mockito.Mockito.atLeastOnce;23import static org.mockito.Mockito.atLeast;24import static org.mockito.Mockito.atMost;25import static org.mockito.Mockito.after;26import static org.mockito.Mockito.before;27import static org.mockito.Mockito.clearInvocations;28import static org.mockito.Mockito.reset;29import static org.mockito.Mockito.withSettings;30import static org.mockito.Mockito.RETURNS_SMART_NULLS;31import static org.mockito.Mockito.RETURNS_DEEP_STUBS;32import static org.mockito.Mockito.RETURNS_MOCKS;33import static org.mockito.Mockito.RETURNS_DEFAULTS;34import static org.mockito.Mockito.RETURNS_SELF;35import static org.mockito.Mockito.RETURNS_ARG_AT;36import static org.mockito.Mockito.RETURNS_ARG_AT_0;37import static org.mockito.Mockito.RETURNS_ARG_AT_1;38import static org.mockito.Mockito.RETURNS_ARG_AT_2;39import static org.mockito.Mockito.RETURNS_ARG_AT_3;40import static org.mockito.Mockito.RETURNS_ARG_AT_4;41import static org.mockito.Mockito.RETURNS_ARG_AT_5;42import static org.mockito.Mockito.RETURNS_ARG_AT_6;43import static org.mockito.Mockito.RETURNS_ARG_AT_7;44import static org.mockito.Mockito.RETURNS_ARG_AT_8;45import static org.mockito.Mockito.RETURNS_ARG_AT_9;46import static org.mockito.Mockito.RETURNS_ARG_AT_10;47import static org.mockito.Mockito.RETURNS_ARG_AT_11;48import static org.mockito.Mockito.RETURNS_ARG_AT_12;49import static org.mockito.Mockito.RETURNS_ARG_AT_13;50import static org.mockito.Mockito.RETURNS_ARG_AT_

Invocation

Using AI Code Generation

1import org.mockito.invocation.Invocation;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4import org.mockito.stubbing.Stubber;5import java.util.ArrayList;6import java.util.List;7import static org.mockito.Mockito.doAnswer;8import static org.mockito.Mockito.mock;9import static org.mockito.Mockito.when;10public class InvocationClassExample {11    public static void main(String[] args) {12        List mockedList = mock(ArrayList.class);13        when(mockedList.get(0)).thenReturn("one");14        when(mockedList.get(1)).thenReturn("two");15        System.out.println(mockedList.get(0));16        System.out.println(mockedList.get(1));17        Stubber stubber = doAnswer(new Answer() {18            public Object answer(InvocationOnMock invocation) throws Throwable {19                Invocation invocation1 = (Invocation) invocation;20                System.out.println("Method name: " + invocation1.getMethod().getName());21                System.out.println("Arguments: " + invocation1.getArguments()[0]);22                return null;23            }24        });25        stubber.when(mockedList).get(0);26        stubber.when(mockedList).get(1);27        mockedList.get(0);28        mockedList.get(1);29    }30}

Invocation

Using AI Code Generation

1import org.mockito.invocation.Invocation;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4import org.mockito.invocation.MockHandler;5import org.mockito.invocation.MockHandlerFactory;6import org.mockito.invocation.MockHandlerInterface;7import org.mockito.invocation.MockAwareVerificationMode;8import org.mockito.invocation.Location;9import org.mockito.invocation.MockitoMethod;10import org.mockito.invocation.MockitoInvocationHandler;11import org.mockito.Mockito;12import org.mockito.MockitoAnnotations;13import org.mockito.Mock;14import org.mockito.Spy;15import org.mockito.Captor;16import org.mockito.ArgumentCaptor;17import org.mockito.InOrder;18import org.mockito.MockSettings;19import org.mockito.MockitoSession;20import org.mockito.MockitoSessionBuilder;21import org.mockito.MockitoSessionLogger;22import org.mockito.MockitoSessionLoggerBase;23import org.mockito.MockitoSessionLoggerFactory;24import org.mockito.MockitoSessionLoggerProvider;25import org.mockito.MockitoSessionBuilder;26import org.mockito.exceptions.base.MockitoException;27import org.mockito.exceptions.base.MockitoInitializationException;28import org.mockito.exceptions.base.MockitoAssertionError;29import org.mockito.exceptions.misusing.*;30import org.mockito.exceptions.verification.*;31import org.mockito.exceptions.verification.junit.ArgumentsAreDifferent;32import org.mockito.exceptions.verification.junit.WantedButNotInvoked;33import org.mockito.exceptions.verification.junit.TooLittleActualInvocations;34import org.mockito.exceptions.verification.junit.TooManyActualInvocations;35import org.mockito.exceptions.verification.junit.NeverWantedButInvoked;36import org.mockito.exceptions.verification.junit.NoInteractionsWanted;37import org.mockito.exceptions.verification.junit.NoInteractionsWanted;38import org.mockito.exceptions.verification.junit.JUnitNoInteractionsWanted;39import org.mockito.exceptions.verification.junit.JUnitNoInteractionsWanted;40import org.mockito.exceptions.verification.junit.ArgumentsAreDifferent;41import org.mockito.exceptions.verification.junit.ArgumentsAreDifferent;42import org.mockito.exceptions.verification.junit.WantedButNotInvoked;43import org.mockito.exceptions.verification.junit.WantedButNotInvoked;44import org.mockito.exceptions.verification.junit.TooLittleActualInvocations;45import org.mockito.exceptions.verification.junit.TooLittleActualInvocations;46import org.mockito.exceptions.verification.junit.TooManyActualInvocations;47import org.mockito.exceptions.verification.junit.TooManyActualInvocations;48import org.mockito.exceptions.verification.junit.NeverWantedButInvoked;49import org.mockito.exceptions.verification.junit.NeverWantedButInvoked;

Invocation

Using AI Code Generation

1import org.mockito.invocation.Invocation;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4import static org.mockito.Mockito.*;5import static org.junit.Assert.*;6import org.junit.Before;7import org.junit.Test;8public class MockitoTest {9    private Invokable invokable;10    private Invokable spy;11    public void setUp() {12        invokable = mock(Invokable.class);13        spy = spy(new Invokable());14    }15    public void testInvocation() {16        doAnswer(new Answer() {17            public Object answer(InvocationOnMock invocation) throws Throwable {18                Invocation inv = (Invocation) invocation;19                System.out.println("Invoked method: " + inv.getMethod());20                System.out.println("With arguments: " + inv.getArguments());21                return null;22            }23        }).when(invokable).invoke();24        invokable.invoke();25    }26    public void testInvocationOnMock() {27        doAnswer(new Answer() {28            public Object answer(InvocationOnMock invocation) throws Throwable {29                System.out.println("Invoked method: " + invocation.getMethod());30                System.out.println("With arguments: " + invocation.getArguments());31                return null;32            }33        }).when(spy).invoke();34        spy.invoke();35    }36}37import org.mockito.Mockito;38import org.mockito.invocation.Invocation;39import org.mockito.invocation.InvocationOnMock;40import org.mockito.stubbing.Answer;41import static org.mockito.Mockito.*;42import static org.junit.Assert.*;43import org.junit.Before;44import org.junit.Test;45public class MockitoTest {46    private Invokable invokable;47    private Invokable spy;48    public void setUp() {49        invokable = mock(Invokable.class);50        spy = spy(new Invokable());51    }52    public void testInvocation() {53        doAnswer(new Answer() {54            public Object answer(InvocationOnMock invocation) throws Throwable {55                Invocation inv = Mockito.invocation(invocation);56                System.out.println("Invoked method: " + inv.getMethod());57                System.out.println("With arguments: " + inv.getArguments());58                return null;59            }60        }).when(invokable).invoke();61        invokable.invoke();62    }

Invocation

Using AI Code Generation

1import org.mockito.invocation.Invocation;2import org.mockito.stubbing.Answer;3public class 1 {4    public static void main(String[] args) {5        List mock = mock(List.class);6        when(mock.get(anyInt())).thenAnswer(new Answer<String>() {7            public String answer(InvocationOnMock invocation) throws Throwable {8                Object[] args = invocation.getArguments();9                Object mock = invocation.getMock();10                return "foo";11            }12        });13    }14}15Recommended Posts: Mockito - when() method16Mockito - doReturn() method17Mockito - doThrow() method18Mockito - doAnswer() method19Mockito - doNothing() method20Mockito - doCallRealMethod() method21Mockito - @RunWith(MockitoJUnitRunner.class)22Mockito - @RunWith(MockitoJUnitRunner.class)23Mockito - @RunWith(MockitoJUnitRunner.class)24Mockito - @RunWith(MockitoJUnitRunner.class)25Mockito - @RunWith(MockitoJUnitRunner.class)26Mockito - @RunWith(MockitoJUnitRunner.class)27Mockito - @RunWith(MockitoJUnitRunner.class)28Mockito - @RunWith(MockitoJUnitRunner.class)29Mockito - @RunWith(MockitoJUnitRunner.class)

Invocation

Using AI Code Generation

1import org.mockito.invocation.InvocationOnMock;2import org.mockito.stubbing.Answer;3public class TestInvocation implements Answer {4    public Object answer(InvocationOnMock invocation) {5        Object[] args = invocation.getArguments();6        Object mock = invocation.getMock();7        return "called with arguments: " + args;8    }9}10import org.mockito.invocation.InvocationOnMock;11import org.mockito.stubbing.Answer;12public class TestInvocation implements Answer {13    public Object answer(InvocationOnMock invocation) {14        Object[] args = invocation.getArguments();15        Object mock = invocation.getMock();16        return "called with arguments: " + args;17    }18}19import org.mockito.invocation.InvocationOnMock;20import org.mockito.stubbing.Answer;21public class TestInvocationOnMock implements Answer {22    public Object answer(InvocationOnMock invocation) {23        Object[] args = invocation.getArguments();24        Object mock = invocation.getMock();25        return "called with arguments: " + args;26    }27}28import org.mockito.invocation.InvocationOnMock;29import org.mockito.stubbing.Answer;30public class TestInvocationOnMock implements Answer {31    public Object answer(InvocationOnMock invocation) {32        Object[] args = invocation.getArguments();33        Object mock = invocation.getMock();34        return "called with arguments: " + args;35    }36}

Invocation

Using AI Code Generation

1package org.example;2import org.mockito.invocation.Invocation;3import org.mockito.stubbing.Answer;4public class Example {5    public String method() {6        return "Hello World";7    }8    public static void main(String[] args) {9        Example mock = org.mockito.Mockito.mock(Example.class);10        org.mockito.Mockito.when(mock.method()).thenAnswer(new Answer<String>() {11            public String answer(InvocationOnMock invocation) throws Throwable {12                Invocation invocation = invocation.getInvocation();13                return "Hello World";14            }15        });16        System.out.println(mock.method());17    }18}

Invocation

Using AI Code Generation

1package com.automationrhapsody.junit;2import static org.junit.Assert.assertEquals;3import static org.mockito.Mockito.mock;4import static org.mockito.Mockito.when;5import static org.mockito.Mockito.verify;6import java.util.List;7import org.junit.Test;8import org.mockito.invocation.Invocation;9public class MockitoInvocationTest {10    public void testInvocation() {11        List mockedList = mock(List.class);12        when(mockedList.get(0)).thenReturn("first");13        String firstElement = mockedList.get(0).toString();14        assertEquals("first", firstElement);15        Invocation invocation = verify(mockedList).get(0);16        Object[] arguments = invocation.getArguments();17        assertEquals(1, arguments.length);18        assertEquals(0, arguments[0]);19    }20}

Invocation

Using AI Code Generation

1package org.mockito.invocation;2import org.mockito.invocation.Invocation;3public class Test {4    public static void main(String[] args) {5        Invocation invocation = null;6    }7}

Invocation

Using AI Code Generation

1import org.mockito.invocation.Invocation;2import org.mockito.stubbing.Answer;3import static org.mockito.Mockito.*;4import static org.mockito.Matchers.*;5import org.mockito.ArgumentCaptor;6import org.mockito.InOrder;7import org.mockito.exceptions.verification.NoInteractionsWanted;8import org.mockito.exceptions.verification.TooLittleActualInvocations;9import org.mockito.exceptions.verification.TooManyActualInvocations;10import java.util.*;11public class 1 {12public static void main(String[] args) {13List mockedList = mock(List.class);14when(mockedList.get(0)).thenReturn("first");15when(mockedList.get(1)).thenThrow(new RuntimeException());16System.out.println(mockedList.get(0));17System.out.println(mockedList.get(1));18System.out.println(mockedList.get(999));19verify(mockedList).get(0);20}21}22at 1.main(1.java:21)

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.