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How to use willThrow method of org.mockito.BDDMockito class

Best Mockito code snippet using org.mockito.BDDMockito.willThrow

Source:BDDMockito.java

...40 * 41 * Stubbing voids with throwables:42 * <pre class="code"><code class="java">43 *   //given44 *   willThrow(new RuntimeException("boo")).given(mock).foo();45 *   46 *   //when47 *   Result result = systemUnderTest.perform();48 *   49 *   //then50 *   assertEquals(failure, result);51 * </code></pre>52 * <p>53 * One of the purposes of BDDMockito is also to show how to tailor the mocking syntax to a different programming style.54 *55 * @since 1.8.056 */57@SuppressWarnings("unchecked")58public class BDDMockito extends Mockito {59    60    /**61     * See original {@link OngoingStubbing}62     * @since 1.8.063     */64    public static interface BDDMyOngoingStubbing<T> {65        66        /**67         * See original {@link OngoingStubbing#thenAnswer(Answer)}68         * @since 1.8.069         */70        BDDMyOngoingStubbing<T> willAnswer(Answer<?> answer);7172        /**73         * See original {@link OngoingStubbing#then(Answer)}74         * @since 1.9.075         */76        BDDMyOngoingStubbing<T> will(Answer<?> answer);7778        /**79         * See original {@link OngoingStubbing#thenReturn(Object)}80         * @since 1.8.081         */82        BDDMyOngoingStubbing<T> willReturn(T value);8384        /**85         * See original {@link OngoingStubbing#thenReturn(Object, Object[])}86         * @since 1.8.087         */88        BDDMyOngoingStubbing<T> willReturn(T value, T... values);8990        /**91         * See original {@link OngoingStubbing#thenThrow(Throwable...)}92         * @since 1.8.093         */94        BDDMyOngoingStubbing<T> willThrow(Throwable... throwables);9596        /**97         * See original {@link OngoingStubbing#thenThrow(Class[])}98         * @since 1.9.099         */100        BDDMyOngoingStubbing<T> willThrow(Class<? extends Throwable>... throwableClasses);101102        /**103         * See original {@link OngoingStubbing#thenCallRealMethod()}104         * @since 1.9.0105         */106        BDDMyOngoingStubbing<T> willCallRealMethod();107108        /**109         * See original {@link OngoingStubbing#getMock()}110         * @since 1.9.0111         */112        <M> M getMock();113    }114    115    public static class BDDOngoingStubbingImpl<T> implements BDDMyOngoingStubbing<T> {116117        private final OngoingStubbing<T> mockitoOngoingStubbing;118119        public BDDOngoingStubbingImpl(OngoingStubbing<T> ongoingStubbing) {120            this.mockitoOngoingStubbing = ongoingStubbing;121        }122123        /* (non-Javadoc)124         * @see BDDMockito.BDDMyOngoingStubbing#willAnswer(Answer)125         */126        public BDDMyOngoingStubbing<T> willAnswer(Answer<?> answer) {127            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.thenAnswer(answer));128        }129130        /* (non-Javadoc)131         * @see BDDMockito.BDDMyOngoingStubbing#will(Answer)132         */133        public BDDMyOngoingStubbing<T> will(Answer<?> answer) {134            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.then(answer));135        }136137        /* (non-Javadoc)138         * @see BDDMockito.BDDMyOngoingStubbing#willReturn(java.lang.Object)139         */140        public BDDMyOngoingStubbing<T> willReturn(T value) {141            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.thenReturn(value));142        }143144        /* (non-Javadoc)145         * @see BDDMockito.BDDMyOngoingStubbing#willReturn(java.lang.Object, T[])146         */147        public BDDMyOngoingStubbing<T> willReturn(T value, T... values) {148            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.thenReturn(value, values));149        }150151        /* (non-Javadoc)152         * @see BDDMockito.BDDMyOngoingStubbing#willThrow(java.lang.Throwable[])153         */154        public BDDMyOngoingStubbing<T> willThrow(Throwable... throwables) {155            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.thenThrow(throwables));156        }157        /* (non-Javadoc)158         * @see BDDMockito.BDDMyOngoingStubbing#willThrow(java.lang.Class[])159         */160        public BDDMyOngoingStubbing<T> willThrow(Class<? extends Throwable>... throwableClasses) {161            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.thenThrow(throwableClasses));162        }163164        public BDDMyOngoingStubbing<T> willCallRealMethod() {165            return new BDDOngoingStubbingImpl<T>(mockitoOngoingStubbing.thenCallRealMethod());166        }167168        public <M> M getMock() {169            return (M) mockitoOngoingStubbing.getMock();170        }171    }172    173    /**174     * see original {@link Mockito#when(Object)}175     * @since 1.8.0176     */177    public static <T> BDDMyOngoingStubbing<T> given(T methodCall) {178        return new BDDOngoingStubbingImpl<T>(Mockito.when(methodCall));179    }180    181    /**182     * See original {@link Stubber}183     * @since 1.8.0184     */185    public static interface BDDStubber {186        /**187         * See original {@link Stubber#doAnswer(Answer)}188         * @since 1.8.0189         */190        BDDStubber willAnswer(Answer answer);191        192        /**193         * See original {@link Stubber#doNothing()}194         * @since 1.8.0195         */196        BDDStubber willNothing();197        198        /**199         * See original {@link Stubber#doReturn(Object)}200         * @since 1.8.0201         */202        BDDStubber willReturn(Object toBeReturned);203        204        /**205         * See original {@link Stubber#doThrow(Throwable)}206         * @since 1.8.0207         */208        BDDStubber willThrow(Throwable toBeThrown);209210        /**211         * See original {@link Stubber#doThrow(Class)}212         * @since 1.9.0213         */214        BDDStubber willThrow(Class<? extends Throwable> toBeThrown);215216        /**217         * See original {@link Stubber#doCallRealMethod()}218         * @since 1.9.0219         */220        BDDStubber willCallRealMethod();221222        /**223         * See original {@link Stubber#when(Object)}224         * @since 1.8.0225         */226        <T> T given(T mock);227    }228    229    public static class BDDStubberImpl implements BDDStubber {230231        private final Stubber mockitoStubber;232233        public BDDStubberImpl(Stubber mockitoStubber) {234            this.mockitoStubber = mockitoStubber;235        }236237        /* (non-Javadoc)238         * @see BDDMockito.BDDStubber#given(java.lang.Object)239         */240        public <T> T given(T mock) {241            return mockitoStubber.when(mock);242        }243244        /* (non-Javadoc)245         * @see BDDMockito.BDDStubber#willAnswer(Answer)246         */247        public BDDStubber willAnswer(Answer answer) {248            return new BDDStubberImpl(mockitoStubber.doAnswer(answer));249        }250251        /* (non-Javadoc)252         * @see BDDMockito.BDDStubber#willNothing()253         */254        public BDDStubber willNothing() {255            return new BDDStubberImpl(mockitoStubber.doNothing());256        }257258        /* (non-Javadoc)259         * @see BDDMockito.BDDStubber#willReturn(java.lang.Object)260         */261        public BDDStubber willReturn(Object toBeReturned) {262            return new BDDStubberImpl(mockitoStubber.doReturn(toBeReturned));263        }264265        /* (non-Javadoc)266         * @see BDDMockito.BDDStubber#willThrow(java.lang.Throwable)267         */268        public BDDStubber willThrow(Throwable toBeThrown) {269            return new BDDStubberImpl(mockitoStubber.doThrow(toBeThrown));270        }271272        /* (non-Javadoc)273         * @see BDDMockito.BDDStubber#willThrow(Class)274         */275        public BDDStubber willThrow(Class<? extends Throwable> toBeThrown) {276            return new BDDStubberImpl(mockitoStubber.doThrow(toBeThrown));277        }278279        /* (non-Javadoc)280         * @see BDDMockito.BDDStubber#willCallRealMethod()281         */282        public BDDStubber willCallRealMethod() {283            return new BDDStubberImpl(mockitoStubber.doCallRealMethod());284        }285    }286    287    /**288     * see original {@link Mockito#doThrow(Throwable)}289     * @since 1.8.0290     */291    public static BDDStubber willThrow(Throwable toBeThrown) {292        return new BDDStubberImpl(Mockito.doThrow(toBeThrown));293    }294295    /**296     * see original {@link Mockito#doThrow(Throwable)}297     * @since 1.9.0298     */299    public static BDDStubber willThrow(Class<? extends Throwable> toBeThrown) {300        return new BDDStubberImpl(Mockito.doThrow(toBeThrown));301    }302    303    /**304     * see original {@link Mockito#doAnswer(Answer)}305     * @since 1.8.0306     */307    public static BDDStubber willAnswer(Answer answer) {308        return new BDDStubberImpl(Mockito.doAnswer(answer));309    }  310    311    /**312     * see original {@link Mockito#doNothing()}313     * @since 1.8.0
...

Source:BDDMockitoMixin.java

...65    default BDDMockito.BDDStubber willReturn(Object toBeReturned, Object... toBeReturnedNext) {66        return BDDMockito.willReturn(toBeReturned, toBeReturnedNext);67    }68    /**69     * Delegate call to public static org.mockito.BDDMockito$BDDStubber org.mockito.BDDMockito.willThrow(java.lang.Class<? extends java.lang.Throwable>)70     * {@link org.mockito.BDDMockito#willThrow(java.lang.Class)}71     */72    default BDDMockito.BDDStubber willThrow(Class<? extends Throwable> toBeThrown) {73        return BDDMockito.willThrow(toBeThrown);74    }75    /**76     * Delegate call to public static org.mockito.BDDMockito$BDDStubber org.mockito.BDDMockito.willThrow(java.lang.Throwable...)77     * {@link org.mockito.BDDMockito#willThrow(java.lang.Throwable[])}78     */79    default BDDMockito.BDDStubber willThrow(Throwable... toBeThrown) {80        return BDDMockito.willThrow(toBeThrown);81    }82    /**83     * Delegate call to public static org.mockito.BDDMockito$BDDStubber org.mockito.BDDMockito.willThrow(java.lang.Class<? extends java.lang.Throwable>,java.lang.Class<? extends java.lang.Throwable>...)84     * {@link org.mockito.BDDMockito#willThrow(java.lang.Class,java.lang.Class[])}85     */86    default BDDMockito.BDDStubber willThrow(Class<? extends Throwable> toBeThrown, Class<? extends Throwable>... throwableTypes) {87        return BDDMockito.willThrow(toBeThrown, throwableTypes);88    }89}...

willThrow

Using AI Code Generation

1import static org.mockito.BDDMockito.willThrow;2import static org.mockito.BDDMockito.willReturn;3import static org.mockito.BDDMockito.willDoNothing;4import static org.mockito.BDDMockito.willAnswer;5import static org.mockito.BDDMockito.willCallRealMethod;6public class MockingVoidMethod {7    public void test() {8        List mockedList = mock(List.class);9        willThrow(new RuntimeException()).given(mockedList).clear();10        willReturn(true).given(mockedList).add("one");11        willReturn(true).given(mockedList).add("two");12        willDoNothing().given(mockedList).add("three");13        willAnswer(new Answer() {14            public Object answer(InvocationOnMock invocation) {15                Object[] args = invocation.getArguments();16                Object mock = invocation.getMock();17                return "called with arguments: " + args;18            }19        }).given(mockedList).add("four");20        willCallRealMethod().given(mockedList).add("five");21        mockedList.clear();22        System.out.println(mockedList.add("one"));23        System.out.println(mockedList.add("two"));24        System.out.println(mockedList.add("three"));25        System.out.println(mockedList.add("four"));26        System.out.println(mockedList.add("five"));27    }28}

willThrow

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.Mock;4import org.mockito.junit.MockitoJUnitRunner;5import static org.mockito.BDDMockito.*;6import static org.junit.Assert.*;7@RunWith(MockitoJUnitRunner.class)8public class Test1 {9    private Test1 test1;10    public void test1() {11        willThrow(new RuntimeException()).given(test1).test1();12        try {13            test1.test1();14            fail("Expected exception");15        } catch (RuntimeException e) {16        }17    }18}

willThrow

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.BDDMockito;4import org.mockito.runners.MockitoJUnitRunner;5import java.util.List;6@RunWith(MockitoJUnitRunner.class)7public class Test1 {8    public void test1() {9        List mock = BDDMockito.mock(List.class);10        BDDMockito.willThrow(new RuntimeException("Exception")).given(mock).clear();11        mock.clear();12    }13}14mock.clear();15-> at Test1.test1(Test1.java:17)16    given(mock.get(anyObject())).willReturn(1);17    given(mock.get(anyObject())).willReturn(Integer.valueOf(1));18	at org.mockito.Mockito.validateMockitoUsage(Mockito.java:159)19	at org.mockito.internal.runners.DefaultInternalRunner$1.validateMockitoUsage(DefaultInternalRunner.java:46)20	at org.mockito.internal.runners.DefaultInternalRunner$1.run(DefaultInternalRunner.java:38)21	at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:84)22	at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39)23	at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)24	at org.junit.runner.JUnitCore.run(JUnitCore.java:157)25	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78)26	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212)27	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)28	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)29	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)30	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)31	at java.lang.reflect.Method.invoke(Method.java:597)32	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

willThrow

Using AI Code Generation

1import static org.mockito.BDDMockito.willThrow;2import static org.mockito.Mockito.mock;3import static org.mockito.Mockito.verify;4import static org.mockito.Mockito.when;5import org.junit.Test;6import org.mockito.Mockito;7public class Test1 {8    public void test1() {9        List mockedList = mock(List.class);10        willThrow(new RuntimeException()).given(mockedList).clear();11        mockedList.clear();12    }13}

willThrow

Using AI Code Generation

1import org.junit.Test;2public class Test1 {3  public void test() {4    Foo foo = mock(Foo.class);5    willThrow(new RuntimeException()).given(foo).bar();6    foo.bar();7  }8}9at org.mockito.internal.stubbing.answers.ThrowsException.createException(ThrowsException.java:35)10at org.mockito.internal.stubbing.answers.ThrowsException.answer(ThrowsException.java:26)11at org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:91)12at org.mockito.internal.handler.NullResultGuardian.handle(NullResultGuardian.java:29)13at org.mockito.internal.handler.InvocationNotifierHandler.handle(InvocationNotifierHandler.java:38)14at org.mockito.internal.creation.cglib.MethodInterceptorFilter.intercept(MethodInterceptorFilter.java:59)15at com.example.Test1$Foo$MockitoMock$-1184903090.bar(Unknown Source)16at com.example.Test1.test(Test1.java:11)17at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)18at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)19at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)20at java.lang.reflect.Method.invoke(Method.java:597)21at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)22at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)23at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)24at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)25at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)26at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)27at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)28at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)29at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)30at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)31at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)

willThrow

Using AI Code Generation

1public class TestMockito {2    private List<String> mockList;3    public void testWillThrow() {4        BDDMockito.given(mockList.get(0)).willThrow(new RuntimeException());5    }6}7	at org.mockito.BDDMockito$2.answer(BDDMockito.java:202)8	at org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:91)9	at org.mockito.internal.handler.NullResultGuardian.handle(NullResultGuardian.java:29)10	at org.mockito.internal.handler.InvocationNotifierHandler.handle(InvocationNotifierHandler.java:38)11	at org.mockito.internal.creation.cglib.MethodInterceptorFilter.intercept(MethodInterceptorFilter.java:59)12	at org.mockito.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)13	at org.mockito.internal.util.MockUtil$MockProxyInvocationHandler.invoke(MockUtil.java:111)14	at com.sun.proxy.$Proxy0.get(Unknown Source)15	at TestMockito.testWillThrow(TestMockito.java:20)16	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)17	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)18	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)19	at java.lang.reflect.Method.invoke(Method.java:498)20	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)21	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)22	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)23	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)24	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)25	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)26	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)27	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)28	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)29	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)30	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)31	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:

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