Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More
How to use doAnswer method of org.mockito.Mockito class
Best Mockito code snippet using org.mockito.Mockito.doAnswer
Source:ConnectionProxyXATest.java 
...71 public void testXABranchCommit() throws Throwable {72 Connection connection = Mockito.mock(Connection.class);73 ValueHolder<Boolean> autoCommitOnConnection = new ValueHolder<>();74 autoCommitOnConnection.value = true;75 Mockito.doAnswer(new Answer() {76 @Override77 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {78 autoCommitOnConnection.value = (boolean)invocationOnMock.getArguments()[0];79 return null;80 }81 }).when(connection).setAutoCommit(any(Boolean.class));82 Mockito.doAnswer(new Answer() {83 @Override84 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {85 return autoCommitOnConnection.value;86 }87 }).when(connection).getAutoCommit();88 XAResource xaResource = Mockito.mock(XAResource.class);89 ValueHolder<Boolean> xaStarted = new ValueHolder<>();90 Mockito.doAnswer(new Answer() {91 @Override92 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {93 xaStarted.value = true;94 return null;95 }96 }).when(xaResource).start(any(Xid.class), any(Integer.class));97 ValueHolder<Boolean> xaEnded = new ValueHolder<>();98 Mockito.doAnswer(new Answer() {99 @Override100 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {101 xaEnded.value = true;102 return null;103 }104 }).when(xaResource).end(any(Xid.class), any(Integer.class));105 ValueHolder<Boolean> xaPrepared = new ValueHolder<>(false);106 Mockito.doAnswer(new Answer() {107 @Override108 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {109 xaPrepared.value = true;110 return null;111 }112 }).when(xaResource).prepare(any(Xid.class));113 XAConnection xaConnection = Mockito.mock(XAConnection.class);114 Mockito.when(xaConnection.getXAResource()).thenReturn(xaResource);115 BaseDataSourceResource<ConnectionProxyXA> baseDataSourceResource = Mockito.mock(BaseDataSourceResource.class);116 String xid = "xxx";117 ResourceManager resourceManager = Mockito.mock(ResourceManager.class);118 Mockito.doNothing().when(resourceManager).registerResource(any(Resource.class));119 DefaultResourceManager.get();120 DefaultResourceManager.mockResourceManager(BranchType.XA, resourceManager);121 ConnectionProxyXA connectionProxyXA = new ConnectionProxyXA(connection, xaConnection, baseDataSourceResource, xid);122 connectionProxyXA.init();123 connectionProxyXA.setAutoCommit(false);124 Assertions.assertFalse(connectionProxyXA.getAutoCommit());125 // Assert setAutoCommit = false was NEVER invoked on the wrapped connection126 Assertions.assertTrue(connection.getAutoCommit());127 // Assert XA start was invoked128 Assertions.assertTrue(xaStarted.value);129 connectionProxyXA.commit();130 Assertions.assertTrue(xaEnded.value);131 Assertions.assertTrue(xaPrepared.value);132 }133 @Test134 public void testXABranchRollback() throws Throwable {135 Connection connection = Mockito.mock(Connection.class);136 ValueHolder<Boolean> autoCommitOnConnection = new ValueHolder<>();137 autoCommitOnConnection.value = true;138 Mockito.doAnswer(new Answer() {139 @Override140 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {141 autoCommitOnConnection.value = (boolean)invocationOnMock.getArguments()[0];142 return null;143 }144 }).when(connection).setAutoCommit(any(Boolean.class));145 Mockito.doAnswer(new Answer() {146 @Override147 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {148 return autoCommitOnConnection.value;149 }150 }).when(connection).getAutoCommit();151 XAResource xaResource = Mockito.mock(XAResource.class);152 ValueHolder<Boolean> xaStarted = new ValueHolder<>();153 Mockito.doAnswer(new Answer() {154 @Override155 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {156 xaStarted.value = true;157 return null;158 }159 }).when(xaResource).start(any(Xid.class), any(Integer.class));160 ValueHolder<Boolean> xaEnded = new ValueHolder<>();161 Mockito.doAnswer(new Answer() {162 @Override163 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {164 xaEnded.value = true;165 return null;166 }167 }).when(xaResource).end(any(Xid.class), any(Integer.class));168 ValueHolder<Boolean> xaPrepared = new ValueHolder<>(false);169 Mockito.doAnswer(new Answer() {170 @Override171 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {172 xaPrepared.value = true;173 return null;174 }175 }).when(xaResource).prepare(any(Xid.class));176 XAConnection xaConnection = Mockito.mock(XAConnection.class);177 Mockito.when(xaConnection.getXAResource()).thenReturn(xaResource);178 BaseDataSourceResource<ConnectionProxyXA> baseDataSourceResource = Mockito.mock(BaseDataSourceResource.class);179 String xid = "xxx";180 ResourceManager resourceManager = Mockito.mock(ResourceManager.class);181 Mockito.doNothing().when(resourceManager).registerResource(any(Resource.class));182 DefaultResourceManager.get();183 DefaultResourceManager.mockResourceManager(BranchType.XA, resourceManager);184 ConnectionProxyXA connectionProxyXA = new ConnectionProxyXA(connection, xaConnection, baseDataSourceResource, xid);185 connectionProxyXA.init();186 connectionProxyXA.setAutoCommit(false);187 Assertions.assertFalse(connectionProxyXA.getAutoCommit());188 // Assert setAutoCommit = false was NEVER invoked on the wrapped connection189 Assertions.assertTrue(connection.getAutoCommit());190 // Assert XA start was invoked191 Assertions.assertTrue(xaStarted.value);192 connectionProxyXA.rollback();193 Assertions.assertTrue(xaEnded.value);194 // Not prepared195 Assertions.assertFalse(xaPrepared.value);196 }197 @Test198 public void testClose() throws Throwable {199 Connection connection = Mockito.mock(Connection.class);200 Mockito.when(connection.getAutoCommit()).thenReturn(true);201 ValueHolder<Boolean> closed = new ValueHolder<>();202 closed.value = false;203 Mockito.doAnswer(new Answer() {204 @Override205 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {206 closed.value = true;207 return null;208 }209 }).when(connection).close();210 XAConnection xaConnection = Mockito.mock(XAConnection.class);211 BaseDataSourceResource<ConnectionProxyXA> baseDataSourceResource = Mockito.mock(BaseDataSourceResource.class);212 String xid = "xxx";213 ConnectionProxyXA connectionProxyXA1 = new ConnectionProxyXA(connection, xaConnection, baseDataSourceResource, xid);214 connectionProxyXA1.init();215 // Kept216 connectionProxyXA1.setHeld(true);217 // call close on proxy218 connectionProxyXA1.close();219 // Assert the original connection was NOT closed220 Assertions.assertFalse(closed.value);221 ConnectionProxyXA connectionProxyXA2 = new ConnectionProxyXA(connection, xaConnection, baseDataSourceResource, xid);222 connectionProxyXA2.init();223 // Kept224 connectionProxyXA2.setHeld(false);225 // call close on proxy226 connectionProxyXA2.close();227 // Assert the original connection was ALSO closed228 Assertions.assertTrue(closed.value);229 }230 @Test231 public void testXACommit() throws Throwable {232 Connection connection = Mockito.mock(Connection.class);233 Mockito.when(connection.getAutoCommit()).thenReturn(true);234 XAResource xaResource = Mockito.mock(XAResource.class);235 ValueHolder<Boolean> xaCommitted = new ValueHolder<>(false);236 Mockito.doAnswer(new Answer() {237 @Override238 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {239 xaCommitted.value = true;240 return null;241 }242 }).when(xaResource).commit(any(Xid.class), any(Boolean.class));243 ValueHolder<Boolean> xaRolledback = new ValueHolder<>(false);244 Mockito.doAnswer(new Answer() {245 @Override246 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {247 xaRolledback.value = true;248 return null;249 }250 }).when(xaResource).rollback(any(Xid.class));251 XAConnection xaConnection = Mockito.mock(XAConnection.class);252 Mockito.when(xaConnection.getXAResource()).thenReturn(xaResource);253 BaseDataSourceResource<ConnectionProxyXA> baseDataSourceResource = Mockito.mock(BaseDataSourceResource.class);254 String xid = "xxx";255 ConnectionProxyXA connectionProxyXA = new ConnectionProxyXA(connection, xaConnection, baseDataSourceResource, xid);256 connectionProxyXA.init();257 connectionProxyXA.xaCommit("xxx", 123L, null);258 Assertions.assertTrue(xaCommitted.value);259 Assertions.assertFalse(xaRolledback.value);260 }261 @Test262 public void testXARollback() throws Throwable {263 Connection connection = Mockito.mock(Connection.class);264 Mockito.when(connection.getAutoCommit()).thenReturn(true);265 XAResource xaResource = Mockito.mock(XAResource.class);266 ValueHolder<Boolean> xaCommitted = new ValueHolder<>(false);267 Mockito.doAnswer(new Answer() {268 @Override269 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {270 xaCommitted.value = true;271 return null;272 }273 }).when(xaResource).commit(any(Xid.class), any(Boolean.class));274 ValueHolder<Boolean> xaRolledback = new ValueHolder<>(false);275 Mockito.doAnswer(new Answer() {276 @Override277 public Object answer(InvocationOnMock invocationOnMock) throws Throwable {278 xaRolledback.value = true;279 return null;280 }281 }).when(xaResource).rollback(any(Xid.class));282 XAConnection xaConnection = Mockito.mock(XAConnection.class);283 Mockito.when(xaConnection.getXAResource()).thenReturn(xaResource);284 BaseDataSourceResource<ConnectionProxyXA> baseDataSourceResource = Mockito.mock(BaseDataSourceResource.class);285 String xid = "xxx";286 ConnectionProxyXA connectionProxyXA = new ConnectionProxyXA(connection, xaConnection, baseDataSourceResource, xid);287 connectionProxyXA.init();288 connectionProxyXA.xaRollback("xxx", 123L, null);289 Assertions.assertFalse(xaCommitted.value);...
Source:OfficalTest_Part_4.java
...142 */143 @Test144 public void step_37() {145// // answer by returning 12 every time146// doAnswer(invocation -> 12).when(mock).doSomething();147//148// // answer by using one of the parameters - converting into the right149// // type as your go - in this case, returning the length of the second string parameter150// // as the answer. This gets long-winded quickly, with casting of parameters.151// doAnswer(invocation -> ((String)invocation.getArgument(1)).length())152// .when(mock).doSomething(anyString(), anyString(), anyString());153//154// // Example interface to be mocked has a function like:155// void execute(String operand, Callback callback);156//157// // the example callback has a function and the class under test158// // will depend on the callback being invoked159// void receive(String item);160//161// // Java 8 - style 1162// doAnswer(AdditionalAnswers.answerVoid((operand, callback) -> callback.receive("dummy"))163// .when(mock).execute(anyString(), any(Callback.class));164//165// // Java 8 - style 2 - assuming static import of AdditionalAnswers166// doAnswer(answerVoid((String operand, Callback callback) -> callback.receive("dummy"))167// .when(mock).execute(anyString(), any(Callback.class));168//169// // Java 8 - style 3 - where mocking function to is a static member of test class170// private static void dummyCallbackImpl(String operation, Callback callback) {171// callback.receive("dummy");172// }173//174// doAnswer(answerVoid(TestClass::dummyCallbackImpl)175// .when(mock).execute(anyString(), any(Callback.class));176//177// // Java 7178// doAnswer(answerVoid(new VoidAnswer2() {179// public void answer(String operation, Callback callback) {180// callback.receive("dummy");181// }})).when(mock).execute(anyString(), any(Callback.class));182//183// // returning a value is possible with the answer() function184// // and the non-void version of the functional interfaces185// // so if the mock interface had a method like186// boolean isSameString(String input1, String input2);187//188// // this could be mocked189// // Java 8190// doAnswer(AdditionalAnswers.answer((input1, input2) -> input1.equals(input2))))191// .when(mock).execute(anyString(), anyString());192//193// // Java 7194// doAnswer(answer(new Answer2() {195// public String answer(String input1, String input2) {196// return input1 + input2;197// }})).when(mock).execute(anyString(), anyString());198 }199 /*200 * Meta data and generic type retention (Since 2.1.0)201 * Mockitoç°å¨ä¿çmockedæ¹æ³ä»¥åç±»åä¸ç注éä¿¡æ¯ï¼å°±åä½ä¸ºæ³åå±æ§æ°æ®ä¸æ ·ã202 * 以åï¼æ¨¡æç±»å没æä¿ç对类åç注éï¼é¤éå®ä»¬è¢«æ¾å¼å°ç»§æ¿ï¼å¹¶ä¸ä»æªå¨æ¹æ³ä¸ä¿ç注éã203 * å æ¤ï¼ç°å¨çæ¡ä»¶å¦ä¸ï¼204 * å½æ¶ç¨Java8æ¶ï¼Mockitoç°å¨ä¹ä¼ä¿çç±»å注解ï¼è¿æ¯é»è®¤è¡ä¸ºï¼å¦æ使ç¨å¦ä¸ä¸ªMockMakerå¯è½ä¸ä¼ä¿çã205 */206 /**207 * {@see Mockito208 * https://static.javadoc.io/org.mockito/mockito-core/2.7.22/org/mockito/Mockito.html#38...
Source:MockParserMapFactories.java
1// Copyright (c) Microsoft Corporation.2// Licensed under the MIT license.3package com.microsoft.maps.moduletoolstest;4import static org.mockito.Mockito.doAnswer;5import android.graphics.Bitmap;6import android.graphics.BitmapFactory;7import android.graphics.Color;8import androidx.annotation.NonNull;9import com.microsoft.maps.Geopath;10import com.microsoft.maps.Geopoint;11import com.microsoft.maps.MapElementLayer;12import com.microsoft.maps.MapIcon;13import com.microsoft.maps.MapImage;14import com.microsoft.maps.MapPolygon;15import com.microsoft.maps.MapPolyline;16import com.microsoft.maps.MockMapElementCollection;17import com.microsoft.maps.moduletools.MapFactories;18import java.io.InputStream;19import java.util.ArrayList;20import java.util.concurrent.atomic.AtomicReference;21import org.mockito.Mockito;22public class MockParserMapFactories implements MapFactories {23 @Override24 public MapElementLayer createMapElementLayer() {25 MapElementLayer layer = Mockito.mock(MapElementLayer.class);26 MockMapElementCollection mockElementCollection = new MockMapElementCollection(layer);27 Mockito.doAnswer(invocation -> mockElementCollection).when(layer).getElements();28 return layer;29 }30 @Override31 public MapIcon createMapIcon() {32 MapIcon icon = Mockito.mock(MapIcon.class);33 // location must be final for use within the 'doAnswer' clause34 // AtomicReference used as a wrapper class to capture changes to location35 final AtomicReference<Geopoint> location = new AtomicReference<>();36 Mockito.doAnswer(37 invocation -> {38 location.set(invocation.getArgument(0));39 return true;40 })41 .when(icon)42 .setLocation(Mockito.any(Geopoint.class));43 Mockito.doAnswer(invocation -> location.get()).when(icon).getLocation();44 final AtomicReference<String> title = new AtomicReference<>();45 Mockito.doAnswer(46 invocation -> {47 title.set(invocation.getArgument(0));48 return true;49 })50 .when(icon)51 .setTitle(Mockito.any(String.class));52 Mockito.doAnswer(invocation -> title.get()).when(icon).getTitle();53 final AtomicReference<MapImage> image = new AtomicReference<MapImage>();54 Mockito.doAnswer(55 invocation -> {56 image.set(invocation.getArgument(0));57 return true;58 })59 .when(icon)60 .setImage(Mockito.any(MapImage.class));61 Mockito.doAnswer(invocation -> image.get()).when(icon).getImage();62 return icon;63 }64 @Override65 public MapPolyline createMapPolyline() {66 MapPolyline polyline = Mockito.mock(MapPolyline.class);67 // paths must be final for use within the 'doAnswer' clause68 // AtomicReference used as a wrapper class to capture changes to paths69 final AtomicReference<Geopath> paths = new AtomicReference();70 Mockito.doAnswer(71 invocation -> {72 paths.set(invocation.getArgument(0));73 return true;74 })75 .when(polyline)76 .setPath(Mockito.any(Geopath.class));77 Mockito.doAnswer(invocation -> paths.get()).when(polyline).getPath();78 final AtomicReference<Integer> strokeWidth = new AtomicReference();79 strokeWidth.set(1);80 Mockito.doAnswer(81 invocation -> {82 strokeWidth.set(invocation.getArgument(0));83 return true;84 })85 .when(polyline)86 .setStrokeWidth(Mockito.anyInt());87 Mockito.doAnswer(invocation -> strokeWidth.get()).when(polyline).getStrokeWidth();88 final AtomicReference<Integer> strokeColor = new AtomicReference();89 // set the default value90 strokeColor.set(Color.BLUE);91 doAnswer(92 invocation -> {93 strokeColor.set(invocation.getArgument(0));94 return true;95 })96 .when(polyline)97 .setStrokeColor(Mockito.anyInt());98 doAnswer(invocation -> strokeColor.get()).when(polyline).getStrokeColor();99 return polyline;100 }101 @Override102 public MapPolygon createMapPolygon() {103 MapPolygon polygon = Mockito.mock(MapPolygon.class);104 // paths must be final for use within the 'doAnswer' clause105 // AtomicReference used as a wrapper class to capture changes to paths106 final AtomicReference<ArrayList<Geopath>> paths = new AtomicReference(new ArrayList<Geopath>());107 Mockito.doAnswer(108 invocation -> {109 paths.set(invocation.getArgument(0));110 return true;111 })112 .when(polygon)113 .setPaths(Mockito.anyList());114 Mockito.doAnswer(invocation -> paths.get()).when(polygon).getPaths();115 final AtomicReference<Integer> fillColor = new AtomicReference();116 // set the default value117 fillColor.set(Color.BLUE);118 doAnswer(119 invocation -> {120 fillColor.set(invocation.getArgument(0));121 return true;122 })123 .when(polygon)124 .setFillColor(Mockito.anyInt());125 doAnswer(invocation -> fillColor.get()).when(polygon).getFillColor();126 final AtomicReference<Integer> strokeColor = new AtomicReference();127 // set the default value128 strokeColor.set(Color.BLUE);129 doAnswer(130 invocation -> {131 strokeColor.set(invocation.getArgument(0));132 return true;133 })134 .when(polygon)135 .setStrokeColor(Mockito.anyInt());136 doAnswer(invocation -> strokeColor.get()).when(polygon).getStrokeColor();137 final AtomicReference<Integer> strokeWidth = new AtomicReference();138 // set the default value139 strokeWidth.set(1);140 doAnswer(141 invocation -> {142 strokeWidth.set(invocation.getArgument(0));143 return true;144 })145 .when(polygon)146 .setStrokeWidth(Mockito.anyInt());147 doAnswer(invocation -> strokeWidth.get()).when(polygon).getStrokeWidth();148 return polygon;149 }150 public MapImage createMapImage(@NonNull InputStream inputStream) {151 MapImage mapImage = Mockito.mock(MapImage.class);152 // image must be final for use within the 'doAnswer' clause153 // AtomicReference used as a wrapper class to capture changes to inputStream154 final AtomicReference<Bitmap> image = new AtomicReference<>();155 image.set(BitmapFactory.decodeStream(inputStream));156 Mockito.doAnswer(invocation -> image.get()).when(mapImage).getBitmap();157 return mapImage;158 }159}...
Source:InternalGuavaSpanStoreAdapterTest.java
...29import static org.assertj.core.api.Assertions.assertThat;30import static org.hamcrest.core.Is.isA;31import static org.mockito.Matchers.any;32import static org.mockito.Matchers.eq;33import static org.mockito.Mockito.doAnswer;34import static zipkin.TestObjects.LINKS;35import static zipkin.TestObjects.TRACE;36public class InternalGuavaSpanStoreAdapterTest {37 @Rule38 public MockitoRule mocks = MockitoJUnit.rule();39 @Rule40 public ExpectedException thrown = ExpectedException.none();41 @Mock42 private AsyncSpanStore asyncSpanStore;43 private GuavaSpanStore spanStore;44 @Before45 public void setUp() throws Exception {46 spanStore = new InternalGuavaSpanStoreAdapter(asyncSpanStore);47 }48 @Test49 public void getTraces_success() throws Exception {50 QueryRequest request = QueryRequest.builder().build();51 doAnswer(answer(c -> c.onSuccess(asList(TRACE))))52 .when(asyncSpanStore).getTraces(eq(request), any(Callback.class));53 assertThat(spanStore.getTraces(request).get()).containsExactly(TRACE);54 }55 @Test56 public void getTraces_exception() throws Exception {57 QueryRequest request = QueryRequest.builder().build();58 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))59 .when(asyncSpanStore).getTraces(eq(request), any(Callback.class));60 thrown.expect(ExecutionException.class);61 thrown.expectCause(isA(IllegalStateException.class));62 spanStore.getTraces(request).get();63 }64 @Test65 public void getTrace_success() throws Exception {66 doAnswer(answer(c -> c.onSuccess(TRACE)))67 .when(asyncSpanStore).getTrace(eq(1L), any(Callback.class));68 assertThat(spanStore.getTrace(1L).get()).isEqualTo(TRACE);69 }70 @Test71 public void getTrace_exception() throws Exception {72 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))73 .when(asyncSpanStore).getTrace(eq(1L), any(Callback.class));74 thrown.expect(ExecutionException.class);75 thrown.expectCause(isA(IllegalStateException.class));76 spanStore.getTrace(1L).get();77 }78 @Test79 public void getRawTrace_success() throws Exception {80 doAnswer(answer(c -> c.onSuccess(TRACE)))81 .when(asyncSpanStore).getRawTrace(eq(1L), any(Callback.class));82 assertThat(spanStore.getRawTrace(1L).get()).isEqualTo(TRACE);83 }84 @Test85 public void getRawTrace_exception() throws Exception {86 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))87 .when(asyncSpanStore).getRawTrace(eq(1L), any(Callback.class));88 thrown.expect(ExecutionException.class);89 thrown.expectCause(isA(IllegalStateException.class));90 spanStore.getRawTrace(1L).get();91 }92 @Test93 public void getServiceNames_success() throws Exception {94 doAnswer(answer(c -> c.onSuccess(asList("service1", "service2"))))95 .when(asyncSpanStore).getServiceNames(any(Callback.class));96 assertThat(spanStore.getServiceNames().get()).containsExactly("service1", "service2");97 }98 @Test99 public void getServiceNames_exception() throws Exception {100 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))101 .when(asyncSpanStore).getServiceNames(any(Callback.class));102 thrown.expect(ExecutionException.class);103 thrown.expectCause(isA(IllegalStateException.class));104 spanStore.getServiceNames().get();105 }106 @Test107 public void getSpanNames_success() throws Exception {108 doAnswer(answer(c -> c.onSuccess(asList("span1", "span2"))))109 .when(asyncSpanStore).getSpanNames(eq("service"), any(Callback.class));110 assertThat(spanStore.getSpanNames("service").get()).containsExactly("span1", "span2");111 }112 @Test113 public void getSpanNames_exception() throws Exception {114 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))115 .when(asyncSpanStore).getSpanNames(eq("service"), any(Callback.class));116 thrown.expect(ExecutionException.class);117 thrown.expectCause(isA(IllegalStateException.class));118 spanStore.getSpanNames("service").get();119 }120 @Test121 public void getDependencies_success() throws Exception {122 doAnswer(answer(c -> c.onSuccess(LINKS)))123 .when(asyncSpanStore).getDependencies(eq(1L), eq(0L), any(Callback.class));124 assertThat(spanStore.getDependencies(1L, 0L).get()).containsExactlyElementsOf(LINKS);125 }126 @Test127 public void getDependencies_exception() throws Exception {128 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))129 .when(asyncSpanStore).getDependencies(eq(1L), eq(0L), any(Callback.class));130 thrown.expect(ExecutionException.class);131 thrown.expectCause(isA(IllegalStateException.class));132 spanStore.getDependencies(1L, 0L).get();133 }134 static <T> Answer answer(Consumer<Callback<T>> onCallback) {135 return invocation -> {136 onCallback.accept((Callback) invocation.getArguments()[invocation.getArguments().length - 1]);137 return null;138 };139 }140}...
Source:PowerMockitoStubber.java
...24 */25public interface PowerMockitoStubber extends Stubber {26 /**27 * Allows to choose a static method when stubbing in28 * doThrow()|doAnswer()|doNothing()|doReturn() style29 * <p>30 * Example:31 * 32 * <pre>33 * doThrow(new RuntimeException()).when(StaticList.class);34 * StaticList.clear();35 * 36 * //following throws RuntimeException:37 * StaticList.clear();38 * </pre>39 * 40 * Read more about those methods:41 * <p>42 * {@link Mockito#doThrow(Throwable)}43 * <p>44 * {@link Mockito#doAnswer(Answer)}45 * <p>46 * {@link Mockito#doNothing()}47 * <p>48 * {@link Mockito#doReturn(Object)}49 * <p>50 * 51 * See examples in javadoc for {@link Mockito}52 */53 void when(Class<?> classMock);54 /**55 * Allows to mock a private instance method when stubbing in56 * doThrow()|doAnswer()|doNothing()|doReturn() style.57 * <p>58 * Example:59 * 60 * <pre>61 * doThrow(new RuntimeException()).when(instance, method("myMethod")).withNoArguments();62 * </pre>63 * 64 * Read more about those methods:65 * <p>66 * {@link Mockito#doThrow(Throwable)}67 * <p>68 * {@link Mockito#doAnswer(Answer)}69 * <p>70 * {@link Mockito#doNothing()}71 * <p>72 * {@link Mockito#doReturn(Object)}73 * <p>74 * 75 * See examples in javadoc for {@link Mockito}76 */77 <T> PrivatelyExpectedArguments when(T mock, Method method) throws Exception;78 /**79 * Allows to mock a private instance method based on the parameters when80 * stubbing in doThrow()|doAnswer()|doNothing()|doReturn() style.81 * <p>82 * Example:83 * 84 * <pre>85 * doThrow(new RuntimeException()).when(instance, parameter1, parameter2);86 * </pre>87 * 88 * Read more about those methods:89 * <p>90 * {@link Mockito#doThrow(Throwable)}91 * <p>92 * {@link Mockito#doAnswer(Answer)}93 * <p>94 * {@link Mockito#doNothing()}95 * <p>96 * {@link Mockito#doReturn(Object)}97 * <p>98 * 99 * See examples in javadoc for {@link Mockito}100 */101 <T> void when(T mock, Object... arguments) throws Exception;102 /**103 * Allows to mock a private instance method based on method name and104 * parameters when stubbing in doThrow()|doAnswer()|doNothing()|doReturn()105 * style.106 * <p>107 * Example:108 * 109 * <pre>110 * doThrow(new RuntimeException()).when(instance, "methodName", parameter1, parameter2);111 * </pre>112 * 113 * Read more about those methods:114 * <p>115 * {@link Mockito#doThrow(Throwable)}116 * <p>117 * {@link Mockito#doAnswer(Answer)}118 * <p>119 * {@link Mockito#doNothing()}120 * <p>121 * {@link Mockito#doReturn(Object)}122 * <p>123 * 124 * See examples in javadoc for {@link Mockito}125 */126 <T> void when(T mock, String methodToExpect, Object... arguments) throws Exception;127 /**128 * Allows to mock a static private method when stubbing in129 * doThrow()|doAnswer()|doNothing()|doReturn() style.130 * <p>131 * Example:132 * 133 * <pre>134 * doThrow(new RuntimeException()).when(MyClass.class, method("myMethod")).withNoArguments();135 * </pre>136 * 137 * Read more about those methods:138 * <p>139 * {@link Mockito#doThrow(Throwable)}140 * <p>141 * {@link Mockito#doAnswer(Answer)}142 * <p>143 * {@link Mockito#doNothing()}144 * <p>145 * {@link Mockito#doReturn(Object)}146 * <p>147 * 148 * See examples in javadoc for {@link Mockito}149 */150 <T> PrivatelyExpectedArguments when(Class<T> classMock, Method method) throws Exception;151 /**152 * Allows to mock a static private method based on the parameters when153 * stubbing in doThrow()|doAnswer()|doNothing()|doReturn() style.154 * <p>155 * Example:156 * 157 * <pre>158 * doThrow(new RuntimeException()).when(MyClass.class, parameter1, parameter2);159 * </pre>160 * 161 * Read more about those methods:162 * <p>163 * {@link Mockito#doThrow(Throwable)}164 * <p>165 * {@link Mockito#doAnswer(Answer)}166 * <p>167 * {@link Mockito#doNothing()}168 * <p>169 * {@link Mockito#doReturn(Object)}170 * <p>171 * 172 * See examples in javadoc for {@link Mockito}173 */174 <T> void when(Class<T> classMock, Object... arguments) throws Exception;175 /**176 * Allows to mock a static private method based on method name and177 * parameters when stubbing in doThrow()|doAnswer()|doNothing()|doReturn()178 * style.179 * <p>180 * Example:181 * 182 * <pre>183 * doThrow(new RuntimeException()).when(MyClass.class, "methodName", parameter1, parameter2);184 * </pre>185 * 186 * Read more about those methods:187 * <p>188 * {@link Mockito#doThrow(Throwable)}189 * <p>190 * {@link Mockito#doAnswer(Answer)}191 * <p>192 * {@link Mockito#doNothing()}193 * <p>194 * {@link Mockito#doReturn(Object)}195 * <p>196 * 197 * See examples in javadoc for {@link Mockito}198 */199 <T> void when(Class<T> classMock, String methodToExpect, Object... parameters) throws Exception;200}...
Source:InternalAsyncToBlockingSpanStoreAdapterTest.java
...24import static java.util.Arrays.asList;25import static org.assertj.core.api.Assertions.assertThat;26import static org.mockito.Matchers.any;27import static org.mockito.Matchers.eq;28import static org.mockito.Mockito.doAnswer;29import static zipkin.TestObjects.LINKS;30import static zipkin.TestObjects.TRACE;31public class InternalAsyncToBlockingSpanStoreAdapterTest {32 @Rule33 public MockitoRule mocks = MockitoJUnit.rule();34 @Rule35 public ExpectedException thrown = ExpectedException.none();36 @Mock37 private AsyncSpanStore delegate;38 private InternalAsyncToBlockingSpanStoreAdapter spanStore;39 @Before40 public void setUp() {41 spanStore = new InternalAsyncToBlockingSpanStoreAdapter(delegate);42 }43 @Test44 public void getTraces_success() {45 QueryRequest request = QueryRequest.builder().serviceName("service").endTs(1000L).build();46 doAnswer(answer(c -> c.onSuccess(asList(TRACE))))47 .when(delegate).getTraces(eq(request), any(Callback.class));48 assertThat(spanStore.getTraces(request)).containsExactly(TRACE);49 }50 @Test51 public void getTraces_exception() {52 QueryRequest request = QueryRequest.builder().serviceName("service").endTs(1000L).build();53 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))54 .when(delegate).getTraces(eq(request), any(Callback.class));55 thrown.expect(IllegalStateException.class);56 spanStore.getTraces(request);57 }58 @Test59 public void getTrace_success() {60 doAnswer(answer(c -> c.onSuccess(TRACE)))61 .when(delegate).getTrace(eq(1L), any(Callback.class));62 assertThat(spanStore.getTrace(1L)).isEqualTo(TRACE);63 }64 @Test65 public void getTrace_exception() {66 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))67 .when(delegate).getTrace(eq(1L), any(Callback.class));68 thrown.expect(IllegalStateException.class);69 spanStore.getTrace(1L);70 }71 @Test72 public void getRawTrace_success() {73 doAnswer(answer(c -> c.onSuccess(TRACE)))74 .when(delegate).getRawTrace(eq(1L), any(Callback.class));75 assertThat(spanStore.getRawTrace(1L)).isEqualTo(TRACE);76 }77 @Test78 public void getRawTrace_exception() {79 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))80 .when(delegate).getRawTrace(eq(1L), any(Callback.class));81 thrown.expect(IllegalStateException.class);;82 spanStore.getRawTrace(1L);83 }84 @Test85 public void getServiceNames_success() {86 doAnswer(answer(c -> c.onSuccess(asList("service1", "service2"))))87 .when(delegate).getServiceNames(any(Callback.class));88 assertThat(spanStore.getServiceNames()).containsExactly("service1", "service2");89 }90 @Test91 public void getServiceNames_exception() {92 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))93 .when(delegate).getServiceNames(any(Callback.class));94 thrown.expect(IllegalStateException.class);95 spanStore.getServiceNames();96 }97 @Test98 public void getSpanNames_success() {99 doAnswer(answer(c -> c.onSuccess(asList("span1", "span2"))))100 .when(delegate).getSpanNames(eq("service"), any(Callback.class));101 assertThat(spanStore.getSpanNames("service")).containsExactly("span1", "span2");102 }103 @Test104 public void getSpanNames_exception() {105 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))106 .when(delegate).getSpanNames(eq("service"), any(Callback.class));107 thrown.expect(IllegalStateException.class);108 spanStore.getSpanNames("service");109 }110 @Test111 public void getDependencies_success() {112 doAnswer(answer(c -> c.onSuccess(LINKS)))113 .when(delegate).getDependencies(eq(1L), eq(0L), any(Callback.class));114 assertThat(spanStore.getDependencies(1L, 0L)).containsExactlyElementsOf(LINKS);115 }116 @Test117 public void getDependencies_exception() {118 doAnswer(answer(c -> c.onError(new IllegalStateException("failed"))))119 .when(delegate).getDependencies(eq(1L), eq(0L), any(Callback.class));120 thrown.expect(IllegalStateException.class);;121 spanStore.getDependencies(1L, 0L);122 }123 static <T> Answer answer(Consumer<Callback<T>> onCallback) {124 return invocation -> {125 onCallback.accept((Callback) invocation.getArguments()[invocation.getArguments().length - 1]);126 return null;127 };128 }129}...
Source:Stubber.java
...67import org.mockito.Mockito;89/**10 * Allows to choose a method when stubbing in doThrow()|doAnswer()|doNothing()|doReturn() style11 * <p> 12 * Example:13 * <pre>14 * doThrow(new RuntimeException()).when(mockedList).clear();15 * 16 * //following throws RuntimeException:17 * mockedList.clear();18 * </pre>19 * 20 * Also useful when stubbing consecutive calls:21 * 22 * <pre>23 * doThrow(new RuntimeException("one")).24 * doThrow(new RuntimeException("two"))25 * .when(mock).someVoidMethod();26 * </pre>27 * 28 * Read more about those methods:29 * <p>30 * {@link Mockito#doThrow(Throwable)}31 * <p>32 * {@link Mockito#doAnswer(Answer)}33 * <p>34 * {@link Mockito#doNothing()}35 * <p>36 * {@link Mockito#doReturn(Object)}37 * <p>38 * 39 * See examples in javadoc for {@link Mockito}40 */41@SuppressWarnings("unchecked")42public interface Stubber {4344 /**45 * Allows to choose a method when stubbing in doThrow()|doAnswer()|doNothing()|doReturn() style46 * <p> 47 * Example:48 * <pre>49 * doThrow(new RuntimeException())50 * .when(mockedList).clear();51 * 52 * //following throws RuntimeException:53 * mockedList.clear();54 * </pre>55 * 56 * Read more about those methods:57 * <p>58 * {@link Mockito#doThrow(Throwable)}59 * <p>60 * {@link Mockito#doAnswer(Answer)}61 * <p>62 * {@link Mockito#doNothing()}63 * <p>64 * {@link Mockito#doReturn(Object)}65 * <p>66 * 67 * See examples in javadoc for {@link Mockito}68 * 69 * @param mock70 * @return select method for stubbing71 */72 <T> T when(T mock);7374 /**75 * Use it for stubbing consecutive calls in {@link Mockito#doThrow(Throwable)} style:76 * <pre>77 * doThrow(new RuntimeException("one")).78 * doThrow(new RuntimeException("two"))79 * .when(mock).someVoidMethod();80 * </pre>81 * See javadoc for {@link Mockito#doThrow(Throwable)}82 * 83 * @param toBeThrown to be thrown when the stubbed method is called84 * @return stubber - to select a method for stubbing85 */86 Stubber doThrow(Throwable toBeThrown);87 88 /**89 * Use it for stubbing consecutive calls in {@link Mockito#doAnswer(Answer)} style:90 * <pre>91 * doAnswer(answerOne).92 * doAnswer(answerTwo)93 * .when(mock).someVoidMethod();94 * </pre>95 * See javadoc for {@link Mockito#doAnswer(Answer)}96 * 97 * @param answer to answer when the stubbed method is called98 * @return stubber - to select a method for stubbing99 */100 Stubber doAnswer(Answer answer); 101 102 /**103 * Use it for stubbing consecutive calls in {@link Mockito#doNothing()} style:104 * <pre>105 * doNothing().106 * doThrow(new RuntimeException("two"))107 * .when(mock).someVoidMethod();108 * </pre>109 * See javadoc for {@link Mockito#doNothing()}110 * 111 * @return stubber - to select a method for stubbing112 */113 Stubber doNothing();114
...
Source:BaseUnitTest.java
...44 System.out.println(invocation.getMethod().getName().toUpperCase() + "/[" + tag + "] " + msg);45 return null;46 }47 };48 PowerMockito.doAnswer(logAnswer).when(Log.class, "d", anyString(), anyString());49 PowerMockito.doAnswer(logAnswer).when(Log.class, "i", anyString(), anyString());50 PowerMockito.doAnswer(logAnswer).when(Log.class, "w", anyString(), anyString());51 PowerMockito.doAnswer(logAnswer).when(Log.class, "e", anyString(), anyString());52 PowerMockito.doAnswer(new Answer<Boolean>() {53 @Override54 public Boolean answer(InvocationOnMock invocation) throws Throwable {55 final String s = (String)invocation.getArguments()[0];56 return s == null || s.length() == 0;57 }58 }).when(TextUtils.class, "isEmpty", anyString());59 when(sharedPreferences.getString(anyString(), anyString())).thenReturn("");60 when(sharedPreferences.getLong(anyString(), anyLong())).thenReturn(0L);61 when(sharedPreferences.getInt(anyString(), anyInt())).thenReturn(0);62 when(sharedPreferences.getBoolean(anyString(), anyBoolean())).thenReturn(false);63 when(sharedPreferences.getFloat(anyString(), anyFloat())).thenReturn(0f);64 when(context.getSharedPreferences(anyString(), anyInt())).thenReturn(sharedPreferences);65 when(context.getPackageName()).thenReturn("org.thoughtcrime.securesms");66 }...
doAnswer
Using AI Code Generation
1import static org.mockito.Mockito.doAnswer;2import static org.mockito.Mockito.mock;3import static org.mockito.Mockito.when;4import java.util.ArrayList;5import java.util.List;6import org.junit.Assert;7import org.junit.Test;8import org.mockito.invocation.InvocationOnMock;9import org.mockito.stubbing.Answer;10public class MockitoDoAnswerExample {11 public void testDoAnswer() {12 List mockedList = mock(List.class);13 doAnswer(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 }).when(mockedList).get(0);20 System.out.println(mockedList.get(0));21 Assert.assertEquals("called with arguments: foo", mockedList.get(0));22 }23 public void testDoAnswerWithRealCall() {24 ArrayList<String> mockedList = mock(ArrayList.class);25 doAnswer(new Answer() {26 public Object answer(InvocationOnMock invocation) {27 Object[] args = invocation.getArguments();28 Object mock = invocation.getMock();29 return "called with arguments: " + args;30 }31 }).when(mockedList).add("test");32 mockedList.add("test");33 System.out.println(mockedList.get(0));34 Assert.assertEquals("called with arguments: foo", mockedList.get(0));35 }36}
doAnswer
Using AI Code Generation
1package com.automationrhapsody.mockito;2import static org.mockito.Mockito.doAnswer;3import static org.mockito.Mockito.mock;4import java.util.LinkedList;5import org.junit.Test;6import org.mockito.invocation.InvocationOnMock;7import org.mockito.stubbing.Answer;8public class DoAnswerTest {9 public void testDoAnswer() {10 LinkedList mockedList = mock(LinkedList.class);11 doAnswer(new Answer() {12 public Object answer(InvocationOnMock invocation) {13 Object[] args = invocation.getArguments();14 Object mock = invocation.getMock();15 System.out.println("called with arguments: " + args[0]);16 return null;17 }18 }).when(mockedList).add("one");19 mockedList.add("one");20 }21}22Related Posts: Mockito : How to use doCallRealMethod() method23Mockito : How to use doThrow() method24Mockito : How to use doNothing() method25Mockito : How to use doReturn() method26Mockito : How to use doReturn() method with multiple…27Mockito : How to use doThrow() method with multiple…28Mockito : How to use doNothing() method with multiple…
doAnswer
Using AI Code Generation
1import static org.mockito.Mockito.*;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.Mockito;5import org.mockito.invocation.InvocationOnMock;6import org.mockito.runners.MockitoJUnitRunner;7import org.mockito.stubbing.Answer;8import static org.junit.Assert.*;9@RunWith(MockitoJUnitRunner.class)10public class 1 {11 public void test() {12 Example a = Mockito.mock(Example.class);13 when(a.get()).thenReturn("1");14 doThrow(NullPointerException.class).when(a).get();15 when(a.get()).thenThrow(NullPointerException.class);16 doAnswer(new Answer() {17 public Object answer(InvocationOnMock invocation) throws Throwable {18 return "Answer";19 }20 }).when(a).get();21 when(a.get()).thenAnswer(new Answer() {22 public Object answer(InvocationOnMock invocation) throws Throwable {23 return "Answer";24 }25 });26 doAnswer(new Answer() {27 public Object answer(InvocationOnMock invocation) throws Throwable {28 return "Answer";29 }30 }).when(a).get();31 when(a.get()).thenAnswer(new Answer() {32 public Object answer(InvocationOnMock invocation) throws Throwable {33 return "Answer";34 }35 });36 doAnswer(new Answer() {37 public Object answer(InvocationOnMock invocation) throws Throwable {38 return "Answer";39 }40 }).when(a).get();41 when(a.get()).thenAnswer(new Answer() {42 public Object answer(InvocationOnMock invocation) throws Throwable {43 return "Answer";44 }45 });46 doAnswer(new Answer() {47 public Object answer(InvocationOnMock invocation) throws Throwable {48 return "Answer";49 }
doAnswer
Using AI Code Generation
1package com.automationrhapsody.mockito;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.Mock;5import org.mockito.runners.MockitoJUnitRunner;6import java.util.LinkedList;7import java.util.List;8import static org.mockito.Mockito.doAnswer;9import static org.mockito.Mockito.verify;10@RunWith(MockitoJUnitRunner.class)11public class DoAnswerTest {12 private List mockedList;13 public void testDoAnswer() {14 doAnswer(invocation -> {15 Object arg0 = invocation.getArguments()[0];16 System.out.println("called with arguments: " + arg0);17 return null;18 }).when(mockedList).add("one");19 mockedList.add("one");20 mockedList.add("two");21 verify(mockedList).add("one");22 }23}245. doAnswer() with an Answer25package com.automationrhapsody.mockito;26import org.junit.Test;27import org.junit.runner.RunWith;28import org.mockito.Mock;29import org.mockito.invocation.InvocationOnMock;30import org.mockito.runners.MockitoJUnitRunner;31import org.mockito.stubbing.Answer;32import java.util.LinkedList;33import java.util.List;34import static org.mockito.Mockito.doAnswer;35import static org.mockito.Mockito.verify;36@RunWith(MockitoJUnitRunner.class)37public class DoAnswerTest {38 private List mockedList;39 public void testDoAnswer() {40 doAnswer(new Answer() {41 public Object answer(InvocationOnMock invocation) {42 Object arg0 = invocation.getArguments()[0];43 System.out.println("called with arguments: " + arg0);44 return null;45 }46 }).when(mockedList).add("one");47 mockedList.add("one");48 mockedList.add("two");49 verify(mockedList).add("one");50 }51}526. doAnswer() with a Lambda Expression
doAnswer
Using AI Code Generation
1package com.automationrhapsody.mockito;2import static org.mockito.Mockito.*;3import org.junit.Test;4import org.mockito.invocation.InvocationOnMock;5import org.mockito.stubbing.Answer;6public class DoAnswerTest {7 public void testDoAnswer() {8 Interface1 mock = mock(Interface1.class);9 when(mock.method1(anyInt())).thenAnswer(new Answer() {10 public Object answer(InvocationOnMock invocation) {11 Object[] args = invocation.getArguments();12 Object mock = invocation.getMock();13 return "called with arguments: " + args;14 }15 });16 System.out.println(mock.method1(1));17 }18}19interface Interface1 {20 String method1(int i);21}22package com.automationrhapsody.mockito;23import static org.mockito.Mockito.*;24import org.junit.Test;25import org.mockito.invocation.InvocationOnMock;26import org.mockito.stubbing.Answer;27public class DoAnswerTest {28 public void testDoAnswer() {29 Interface1 mock = mock(Interface1.class);30 doAnswer(new Answer() {31 public Object answer(InvocationOnMock invocation) {32 Object[] args = invocation.getArguments();33 Object mock = invocation.getMock();34 System.out.println("called with arguments: " + args);35 return null;36 }37 }).when(mock).method1(anyInt());38 mock.method1(1);39 }40}41interface Interface1 {42 void method1(int i);43}44Mockito doThrow method is used to stub a method to throw an exception. This is similar to doReturn() method. The difference is that doReturn() method can be used to stub a method with a return value
doAnswer
Using AI Code Generation
1import org.mockito.Mockito;2import static org.mockito.Mockito.*;3import org.mockito.invocation.InvocationOnMock;4import org.mockito.stubbing.Answer;5import java.util.*;6import java.io.*;7public class 1 {8public static void main(String[] args) {9List mockList = mock(ArrayList.class);10doAnswer(new Answer() {11public Object answer(InvocationOnMock invocation) throws Throwable {12Object[] args = invocation.getArguments();13Object mock = invocation.getMock();14System.out.println("called with arguments: " + Arrays.toString(args));15return null;16}17}).when(mockList).add(1);18mockList.add(1);19}20}21import org.mockito.Mockito;22import static org.mockito.Mockito.*;23import org.mockito.invocation.InvocationOnMock;24import org.mockito.stubbing.Answer;25import java.util.*;26import java.io.*;27public class 2 {28public static void main(String[] args) {29List mockList = mock(ArrayList.class);30doAnswer(new Answer() {31public Object answer(InvocationOnMock invocation) throws Throwable {32Object[] args = invocation.getArguments();33Object mock = invocation.getMock();34System.out.println("called with arguments: " + Arrays.toString(args));35return null;36}37}).when(mockList).add(1);38mockList.add(1);39}40}41import org.mockito.Mockito;42import static org.mockito.Mockito.*;43import org.mockito.invocation.InvocationOnMock;44import org.mockito.stubbing.Answer;45import java.util.*;46import java.io.*;47public class 3 {48public static void main(String[] args) {49List mockList = mock(ArrayList.class);50doAnswer(new Answer() {51public Object answer(InvocationOnMock invocation) throws Throwable {
doAnswer
Using AI Code Generation
1import org.mockito.Mockito;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4public class MockitoDoAnswerExample {5 public static void main(String[] args) {6 MyClass test = Mockito.mock(MyClass.class);7 Mockito.doAnswer(new Answer() {8 public Object answer(InvocationOnMock invocation) {9 Object[] args = invocation.getArguments();10 Object mock = invocation.getMock();11 return "called with arguments: " + args;12 }13 }).when(test).simpleMethod(Mockito.anyInt());14 System.out.println(test.simpleMethod(100));15 }16}17Next Topic Mockito doNothing() and doThrow() examples
doAnswer
Using AI Code Generation
1import org.mockito.Mockito;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4public class 1 {5 public static void main(String[] args) {6 MyInterface myInterface = Mockito.mock(MyInterface.class);7 Answer answer = new Answer() {8 public Object answer(InvocationOnMock invocation) throws Throwable {9 Object[] args = invocation.getArguments();10 String methodName = invocation.getMethod().getName();11 Class returnType = invocation.getMethod().getReturnType();12 if (methodName.equals("doSomething") && returnType == int.class) {13 return 20;14 }15 return null;16 }17 };18 Mockito.doAnswer(answer).when(myInterface).doSomething();19 int result = myInterface.doSomething();20 System.out.println(result);21 }22}
doAnswer
Using AI Code Generation
1package org.mockito;2import static org.mockito.Mockito.*;3import org.mockito.invocation.InvocationOnMock;4import org.mockito.stubbing.Answer;5public class 1 {6 public static void main(String[] args) {7 List mockedList = mock(List.class);8 when(mockedList.get(anyInt())).thenAnswer(new Answer() {9 public Object answer(InvocationOnMock invocation) {10 Object[] args = invocation.getArguments();11 Object mock = invocation.getMock();12 return "called with arguments: " + args;13 }14 });15 System.out.println(mockedList.get(0));16 verify(mockedList).get(anyInt());17 }18}
doAnswer
Using AI Code Generation
1import org.mockito.invocation.InvocationOnMock;2import org.mockito.stubbing.Answer;3public class MockingDoAnswer {4public static void main(String[] args) {5CalculatorService calcService = mock(CalculatorService.class);6when(calcService.add(10.0,20.0)).thenReturn(30.00);7when(calcService.subtract(20.0,10.0)).thenReturn(10.00);8when(calcService.multiply(10.0,20.0)).thenReturn(200.00);9when(calcService.divide(20.0,10.0)).thenReturn(2.00);10doAnswer(new Answer<Double>() {11public Double answer(InvocationOnMock invocation) {12Object[] args = invocation.getArguments();13Object mock = invocation.getMock();14return 10.0;15}16}).when(calcService).add(10.0,20.0);17doAnswer(new Answer<Double>() {18public Double answer(InvocationOnMock invocation) {19Object[] args = invocation.getArguments();20Object mock = invocation.getMock();21return 10.0;22}23}).when(calcService).subtract(20.0,10.0);24doAnswer(new Answer<Double>() {25public Double answer(InvocationOnMock invocation) {26Object[] args = invocation.getArguments();27Object mock = invocation.getMock();28return 200.0;29}30}).when(calcService).multiply(10.0,20.0);31doAnswer(new Answer<Double>() {32public Double answer(InvocationOnMock invocation) {33Object[] args = invocation.getArguments();34Object mock = invocation.getMock();35return 2.0;36}37}).when(calcService).divide(20.0,10.0);38assertEquals(calcService.add(10.0,20.0),10.0,039@RunWith(MockitoJUnitRunner.class)40public class DoAnswerTest {41 private List mockedList;42 public void testDoAnswer() {43 doAnswer(new Answer() {44 public Object answer(InvocationOnMock invocation) {45 Object arg0 = invocation.getArguments()[0];46 System.out.println("called with arguments: " + arg0);47 return null;48 }49 }).when(mockedList).add("one");50 mockedList.add("one");51 mockedList.add("two");52 verify(mockedList).add("one");53 }54}556. doAnswer() with a Lambda Expression
doAnswer
Using AI Code Generation
1import org.mockito.invocation.InvocationOnMock;2import org.mockito.stubbing.Answer;3public class MockingDoAnswer {4public static void main(String[] args) {5CalculatorService calcService = mock(CalculatorService.clfss);6when(calcService.add(10.0,20.0)).thenReturn(30.00);7when(calcService.subtract(20.0,10.0)).thenReturn(10.00);8when(calcService.multiply(10.0,20.0)).thenReturn(200.00);9when(calcService.divide(20.0,10.0)).thenReturn(2.00);10doAnswer(new Answer<Double>() {11public Double answer(InvocationOnMock invocation) {12Object[] args = invocation.getArguments();13Object mock = invocation.getMock();14return 10.0;15}16}).when(calcService).add(10.0,20.0);17doAnswer(new Answer<Double>() {18public Double answer(InvocationOnMock invocation) {19Object[] args = invocation.getArguments();20Object mock = invocation.getMock();21return 10.0;22}23}).when(calcService).subtract(20.0,10.0);24doAnswer(new Answer<Double>() {25public Double answer(InvocationOnMock invocation) {26Object[] args = invocation.getArguments();27Object mock = invocation.getMock();28return 200.0;29}30}).when(calcService).multiply(10.0,20.0);31doAnswer(new Answer<Double>() {32public Double answer(InvocationOnMock invocation) {33Object[] args = invocation.getArguments();34Object mock = invocation.getMock();35return 2.0;36}37}).when(calcService).divide(20.0,10.0);38assertEquals(calcService.add(10.0,20.0),10.0,0rg.mockito.Mockito class39package com.automationrhapsody.mockito;40import static org.mockito.Mockito.*;41import org.junit.Test;42import org.mockito.invocation.InvocationOnMock;43import org.mockito.stubbing.Answer;44public class DoAnswerTest {45 public void testDoAnswer() {46 Interface1 mock = mock(Interface1.class);47 when(mock.method1(anyInt())).thenAnswer(new Answer() {48 public Object answer(InvocationOnMock invocation) {49 Object[] args = invocation.getArguments();50 Object mock = invocation.getMock();51 return "called with arguments: " + args;52 }53 });54 System.out.println(mock.method1(1));55 }56}57interface Interface1 {58 String method1(int i);59}60package com.automationrhapsody.mockito;61import static org.mockito.Mockito.*;62import org.junit.Test;63import org.mockito.invocation.InvocationOnMock;64import org.mockito.stubbing.Answer;65public class DoAnswerTest {66 public void testDoAnswer() {67 Interface1 mock = mock(Interface1.class);68 doAnswer(new Answer() {69 public Object answer(InvocationOnMock invocation) {70 Object[] args = invocation.getArguments();71 Object mock = invocation.getMock();72 System.out.println("called with arguments: " + args);73 return null;74 }75 }).when(mock).method1(anyInt());76 mock.method1(1);77 }78}79interface Interface1 {80 void method1(int i);81}82Mockito doThrow method is used to stub a method to throw an exception. This is similar to doReturn() method. The difference is that doReturn() method can be used to stub a method with a return value
doAnswer
Using AI Code Generation
1import org.mockito.Mockito;2import org.mockito.invocation.InvocationOnMock;3import org.mockito.stubbing.Answer;4public class MockitoDoAnswerExample {5 public static void main(String[] args) {6 MyClass test = Mockito.mock(MyClass.class);7 Mockito.doAnswer(new Answer() {8 public Object answer(InvocationOnMock invocation) {9 Object[] args = invocation.getArguments();10 Object mock = invocation.getMock();11 return "called with arguments: " + args;12 }13 }).when(test).simpleMethod(Mockito.anyInt());14 System.out.println(test.simpleMethod(100));15 }16}17Next Topic Mockito doNothing() and doThrow() examples
doAnswer
Using AI Code Generation
1package org.mockito;2import static org.mockito.Mockito.*;3import org.mockito.invocation.InvocationOnMock;4import org.mockito.stubbing.Answer;5public class 1 {6 public static void main(String[] args) {7 List mockedList = mock(List.class);8 when(mockedList.get(anyInt())).thenAnswer(new Answer() {9 public Object answer(InvocationOnMock invocation) {10 Object[] args = invocation.getArguments();11 Object mock = invocation.getMock();12 return "called with arguments: " + args;13 }14 });15 System.out.println(mockedList.get(0));16 verify(mockedList).get(anyInt());17 }18}
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.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run Mockito automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used method in Mockito
- integrations
- answer
- shouldBuyBread
- MockitoJUnit.rule
- matches
- dummyCallbackImpl
- HttpRequesterWithHeaders
- request
- HttpBuilder
- withUrl
- withHeader
- use_full_builder_with_terminating_method
- mock
- mockingDetails
- mockStatic
- mockConstructionWithAnswer
- mockConstruction
- when
- verify
- reset
- clearAllCaches
- clearInvocations
- verifyNoMoreInteractions
- verifyZeroInteractions
- verifyNoInteractions
- doThrow
- doCallRealMethod
- doAnswer
- doNothing
- doReturn
- inOrder
- ignoreStubs
- times
- never
- atLeastOnce
- atLeast
- atMostOnce
- atMost
- calls
- only
- timeout
- after
- validateMockitoUsage
- withSettings
- description
- framework
- mockitoSession
- before
- test1
- test2
- test3
- lenient
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
