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How to use CannotStubVoidMethodWithReturnValue method of org.mockito.exceptions.misusing.WrongTypeOfReturnValue class

Best Mockito code snippet using org.mockito.exceptions.misusing.WrongTypeOfReturnValue.CannotStubVoidMethodWithReturnValue

Source:Reporter_ESTest_scaffolding.java

...152      "org.mockito.internal.configuration.plugins.PluginFinder",153      "org.mockito.internal.util.MockUtil",154      "org.mockito.internal.matchers.LocalizedMatcher",155      "org.mockito.exceptions.verification.NeverWantedButInvoked",156      "org.mockito.exceptions.misusing.CannotStubVoidMethodWithReturnValue",157      "org.mockito.exceptions.misusing.CannotVerifyStubOnlyMock",158      "org.hamcrest.Matcher"159    );160  } 161  private static void resetClasses() {162    org.evosuite.runtime.classhandling.ClassResetter.getInstance().setClassLoader(Reporter_ESTest_scaffolding.class.getClassLoader()); 163    org.evosuite.runtime.classhandling.ClassStateSupport.resetClasses(164      "org.mockito.exceptions.Reporter",165      "org.mockito.internal.junit.JUnitDetecter",166      "org.mockito.internal.junit.JUnitTool",167      "org.mockito.exceptions.base.MockitoException",168      "org.mockito.internal.util.StringJoiner",169      "org.mockito.internal.exceptions.stacktrace.ConditionalStackTraceFilter",170      "org.mockito.internal.configuration.GlobalConfiguration",171      "org.mockito.configuration.DefaultMockitoConfiguration",172      "org.mockito.internal.configuration.ClassPathLoader",173      "org.mockito.internal.configuration.plugins.PluginRegistry",174      "org.mockito.internal.configuration.plugins.PluginLoader",175      "org.mockito.internal.configuration.plugins.DefaultPluginSwitch",176      "org.mockito.internal.configuration.plugins.PluginFinder",177      "org.mockito.internal.util.collections.Iterables",178      "org.mockito.internal.creation.cglib.CglibMockMaker",179      "org.mockito.internal.exceptions.stacktrace.DefaultStackTraceCleanerProvider",180      "org.mockito.internal.configuration.plugins.Plugins",181      "org.mockito.internal.exceptions.stacktrace.DefaultStackTraceCleaner",182      "org.mockito.internal.exceptions.stacktrace.StackTraceFilter",183      "org.mockito.internal.reporting.Discrepancy",184      "org.mockito.internal.invocation.InvocationMatcher",185      "org.mockito.internal.invocation.ArgumentsProcessor",186      "org.mockito.exceptions.misusing.InvalidUseOfMatchersException",187      "org.hamcrest.BaseMatcher",188      "org.hamcrest.DiagnosingMatcher",189      "org.hamcrest.core.IsInstanceOf",190      "org.mockito.internal.invocation.SerializableMethod",191      "org.mockito.exceptions.misusing.NotAMockException",192      "org.mockito.internal.debugging.LocationImpl",193      "org.mockito.exceptions.verification.SmartNullPointerException",194      "org.mockito.internal.invocation.realmethod.DefaultRealMethod",195      "org.mockito.internal.invocation.InvocationImpl",196      "org.mockito.exceptions.misusing.NullInsteadOfMockException",197      "org.hamcrest.internal.ReflectiveTypeFinder",198      "org.hamcrest.TypeSafeDiagnosingMatcher",199      "org.hamcrest.core.CombinableMatcher",200      "org.hamcrest.core.ShortcutCombination",201      "org.hamcrest.core.AnyOf",202      "org.hamcrest.core.AllOf",203      "org.mockito.internal.matchers.LocalizedMatcher",204      "org.mockito.internal.debugging.VerboseMockInvocationLogger",205      "org.mockito.exceptions.misusing.WrongTypeOfReturnValue",206      "org.mockito.exceptions.base.MockitoAssertionError",207      "org.mockito.internal.reporting.Pluralizer",208      "org.mockito.exceptions.misusing.UnfinishedStubbingException",209      "org.mockito.exceptions.misusing.FriendlyReminderException",210      "org.hamcrest.core.Is",211      "org.hamcrest.core.IsEqual",212      "org.mockito.exceptions.misusing.CannotVerifyStubOnlyMock",213      "org.mockito.exceptions.misusing.CannotStubVoidMethodWithReturnValue",214      "org.hamcrest.collection.IsIn",215      "org.hamcrest.TypeSafeMatcher",216      "org.hamcrest.beans.HasProperty",217      "org.hamcrest.beans.HasPropertyWithValue$2",218      "org.hamcrest.beans.HasPropertyWithValue",219      "org.mockito.internal.invocation.realmethod.CleanTraceRealMethod",220      "org.mockito.exceptions.misusing.UnfinishedVerificationException",221      "org.hamcrest.core.IsNull",222      "org.hamcrest.core.IsSame",223      "org.hamcrest.number.OrderingComparison",224      "org.hamcrest.core.SubstringMatcher",225      "org.hamcrest.core.StringEndsWith",226      "org.hamcrest.Description$NullDescription",227      "org.mockito.internal.stubbing.StubbedInvocationMatcher",...

CannotStubVoidMethodWithReturnValue

Using AI Code Generation

1public class A {2    public void foo() {3        B bar = new B();4        bar.bar();5    }6}7public class B {8    public void bar() {9    }10}11I am trying to mock the bar() method in B. I have tried the following code:12B mockB = Mockito.mock(B.class);13Mockito.when(mockB.bar()).thenReturn(1);14What is the correct way to mock the bar() method in B?15public class A {16    public void foo() {17    }18}19A mockA = Mockito.mock(A.class);20Mockito.when(mockA.foo()).thenReturn(1);21What is the correct way to mock the foo() method in A?

CannotStubVoidMethodWithReturnValue

Using AI Code Generation

1import org.mockito.exceptions.misusing.WrongTypeOfReturnValue;2import org.mockito.exceptions.misusing.CannotStubVoidMethodWithReturnValue;3import static org.mockito.Mockito.*;4List mockedList = mock(List.class);5when(mockedList.get(0)).thenThrow(new WrongTypeOfReturnValue("message"));6when(mockedList.clear()).thenThrow(new CannotStubVoidMethodWithReturnValue());7mockedList.get(0);8mockedList.clear();9doThrow(new RuntimeException()).when(mockedList).clear();10System.out.println(mockedList.get(0));11mockedList.clear();12When to use doThrow()?13doThrow() is a shortcut to the following (but shorter and more readable):14doAnswer(new Answer() {15    public Object answer(InvocationOnMock invocation) {16        throw exception;17    }18}).when(mock).someMethod();19Example: doThrow() with arguments20import org.mockito.exceptions.misusing.WrongTypeOfReturnValue;21import org.mockito.exceptions.misusing.CannotStubVoidMethodWithReturnValue;22import static org.mockito.Mockito.*;23List mockedList = mock(List.class);24doThrow(new WrongTypeOfReturnValue("message")).when(mockedList).get(0);25doThrow(new CannotStubVoidMethodWithReturnValue()).when(mockedList).clear();26mockedList.get(0);27mockedList.clear();28Example: doThrow() with generic exception29import org.mockito.exceptions.misusing.WrongTypeOfReturnValue;30import org.mockito.exceptions.misusing.CannotStubVoidMethodWithReturnValue;31import static org.mockito.Mockito.*;32List mockedList = mock(List.class);33doThrow(WrongTypeOfReturnValue.class).when(mockedList).get(0);34doThrow(CannotStubVoidMethod

CannotStubVoidMethodWithReturnValue

Using AI Code Generation

1public class WrongTypeOfReturnValueTest {2    private List mockedList;3    public void shouldFailWhenStubbingVoidMethodWithReturnValue() {4        when(mockedList.clear()).thenReturn(true);5    }6}7	at org.mockito.internal.stubbing.answers.ReturnsMocks.answer(ReturnsMocks.java:35)8	at org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:91)9	at org.mockito.internal.handler.NullResultGuardian.handle(NullResultGuardian.java:29)10	at org.mockito.internal.handler.InvocationNotifierHandler.handle(InvocationNotifierHandler.java:38)11	at org.mockito.internal.creation.cglib.MethodInterceptorFilter.intercept(MethodInterceptorFilter.java:59)12	at org.mockito.internal.creation.cglib.MethodInterceptorFilter$$FastClassByCGLIB$$a7a5f9d9.invoke(<generated>)13	at org.mockito.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)14	at org.mockito.internal.util.MockUtil$MockName.getMockName(MockUtil.java:66)15	at org.mockito.internal.util.MockUtil.getMockName(MockUtil.java:43)16	at org.mockito.internal.util.MockNameImpl.toString(MockNameImpl.java:17)17	at java.lang.String.valueOf(String.java:2994)18	at java.lang.StringBuilder.append(StringBuilder.java:131)19	at org.mockito.internal.invocation.DefaultInvocation.toString(DefaultInvocation.java:47)20	at org.mockito.internal.invocation.InvocationMarker.markVerified(InvocationMarker.java:27)21	at org.mockito.internal.verification.VerificationModeFactory$AtLeastXNumberOfInvocationsMode.verify(VerificationModeFactory.java:76)22	at org.mockito.internal.verification.VerificationModeFactory$AtLeastXNumberOfInvocationsMode.verify(VerificationModeFactory.java:66)23	at org.mockito.internal.verification.VerificationOverTimeImpl.verify(VerificationOverTimeImpl.java:42)24	at org.mockito.internal.verification.VerificationOverTimeImpl.verify(VerificationOverTimeImpl.java:30)25	at org.mockito.internal.verification.api.VerificationDataImpl.validate(VerificationDataImpl.java:55)

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