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How to use returnsLastArg method of org.mockito.AdditionalAnswers class
Best Mockito code snippet using org.mockito.AdditionalAnswers.returnsLastArg
Source:AdditionalAnswers.java 
...13 *14 * <p>Currently offer answers that can return the parameter of an invocation at a certain position.15 *16 * <p>See factory methods for more information : {@link #returnsFirstArg}, {@link #returnsSecondArg},17 * {@link #returnsLastArg} and {@link #returnsArgAt}18 *19 * @since 1.9.520 */21@SuppressWarnings("unchecked")22public class AdditionalAnswers {23 private static final ReturnsArgumentAt RETURNS_FIRST_ARGUMENT = new ReturnsArgumentAt(0);24 private static final ReturnsArgumentAt RETURNS_SECOND_ARGUMENT = new ReturnsArgumentAt(1);25 private static final ReturnsArgumentAt RETURNS_LAST_ARGUMENT = new ReturnsArgumentAt(-1);26 /**27 * Returns the first parameter of an invocation.28 *29 * <p>30 * This additional answer could be used at stub time using the31 * <code>then|do|will{@link org.mockito.stubbing.Answer}</code> methods. For example :32 * </p>33 *34 * <pre class="code"><code class="java">given(carKeyFob.authenticate(carKey)).will(returnsFirstArg());35 * doAnswer(returnsFirstArg()).when(carKeyFob).authenticate(carKey)</code></pre>36 *37 * @param <T> Return type of the invocation.38 * @return Answer that will return the first argument of the invocation.39 *40 * @since 1.9.541 */42 public static <T> Answer<T> returnsFirstArg() {43 return (Answer<T>) RETURNS_FIRST_ARGUMENT;44 }45 /**46 * Returns the second parameter of an invocation.47 *48 * <p>49 * This additional answer could be used at stub time using the50 * <code>then|do|will{@link org.mockito.stubbing.Answer}</code> methods. For example :51 * </p>52 *53 * <pre class="code"><code class="java">given(trader.apply(leesFormula, onCreditDefaultSwap)).will(returnsSecondArg());54 * doAnswer(returnsSecondArg()).when(trader).apply(leesFormula, onCreditDefaultSwap)</code></pre>55 *56 * @param <T> Return type of the invocation.57 * @return Answer that will return the second argument of the invocation.58 *59 * @since 1.9.560 */61 public static <T> Answer<T> returnsSecondArg() {62 return (Answer<T>) RETURNS_SECOND_ARGUMENT;63 }64 /**65 * Returns the last parameter of an invocation.66 *67 * <p>68 * This additional answer could be used at stub time using the69 * <code>then|do|will{@link org.mockito.stubbing.Answer}</code> methods. For example :70 * </p>71 *72 * <pre class="code"><code class="java">given(person.remember(dream1, dream2, dream3, dream4)).will(returnsLastArg());73 * doAnswer(returnsLastArg()).when(person).remember(dream1, dream2, dream3, dream4)</code></pre>74 *75 * @param <T> Return type of the invocation.76 * @return Answer that will return the last argument of the invocation.77 *78 * @since 1.9.579 */80 public static <T> Answer<T> returnsLastArg() {81 return (Answer<T>) RETURNS_LAST_ARGUMENT;82 }83 /**84 * Returns the parameter of an invocation at the given position.85 *86 * <p>87 * This additional answer could be used at stub time using the88 * <code>then|do|will{@link org.mockito.stubbing.Answer}</code> methods. For example :89 * </p>90 *91 * <pre class="code"><code class="java">given(person.remember(dream1, dream2, dream3, dream4)).will(returnsArgAt(3));92 * doAnswer(returnsArgAt(3)).when(person).remember(dream1, dream2, dream3, dream4)</code></pre>93 *94 * @param <T> Return type of the invocation....
Source:WithAdditionalAnswers.java
...35 default<T> Answer<T> returnsSecondArg() {36 return AdditionalAnswers.returnsSecondArg();37 }38 /**39 * @see AdditionalAnswers#returnsLastArg()40 */41 default<T> Answer<T> returnsLastArg() {42 return AdditionalAnswers.returnsLastArg();43 }44 /**45 * @see AdditionalAnswers#returnsArgAt(int)46 */47 default<T> Answer<T> returnsArgAt(int position) {48 return AdditionalAnswers.returnsArgAt(position);49 }50 /**51 * @see AdditionalAnswers#delegatesTo(Object) 52 */53 default<T> Answer<T> delegatesTo(Object delegate) {54 return AdditionalAnswers.delegatesTo(delegate);55 }56 /**...
Source:BookServiceUnitTest.java
...34 public void givenCheckifEqualsMethodMocked_whenCheckifEqualsInvoked_ThenReturnLastArgument_UnitTest() {35 Book book1 = new Book(1L, "The Stranger", "Albert Camus", 456);36 Book book2 = new Book(2L, "Animal Farm", "George Orwell", 300);37 Book book3 = new Book(3L, "Romeo and Juliet", "William Shakespeare", 200);38 Mockito.when(bookRepository.selectRandomBook(any(Book.class), any(Book.class), any(Book.class))).then(AdditionalAnswers.returnsLastArg());39 Book lastBook = bookService.selectRandomBook(book1, book2, book3);40 assertEquals(lastBook, book3);41 }42 @Test43 public void givenCheckifEqualsMethodMocked_whenCheckifEqualsInvoked_ThenReturnArgumentAtIndex_UnitTest() {44 Book book1 = new Book(1L, "The Stranger", "Albert Camus", 456);45 Book book2 = new Book(2L, "Animal Farm", "George Orwell", 300);46 Book book3 = new Book(3L, "Romeo and Juliet", "William Shakespeare", 200);47 Mockito.when(bookRepository.selectRandomBook(any(Book.class), any(Book.class), any(Book.class))).then(AdditionalAnswers.returnsArgAt(1));48 Book bookOnIndex = bookService.selectRandomBook(book1, book2, book3);49 assertEquals(bookOnIndex, book2);50 }51}...
Source:ReturnsArgumentTest.java
...41 Person firstPerson = new Person("first");42 Person secondPerson = new Person("second");43 Person thirdPerson = new Person("third");44 Mockito.when(personRepository.select(firstPerson, secondPerson, thirdPerson))45 .then(AdditionalAnswers.returnsLastArg());46 Person actual = personService.select(firstPerson, secondPerson, thirdPerson);47 Assertions.assertThat(actual).isEqualTo(thirdPerson);48 }49 @Test50 public void shouldReturnArgAt() {51 Person firstPerson = new Person("first");52 Person secondPerson = new Person("second");53 Person thirdPerson = new Person("third");54 Mockito.when(personRepository.select(firstPerson, secondPerson, thirdPerson))55 .then(AdditionalAnswers.returnsArgAt(1));56 Person actual = personService.select(firstPerson, secondPerson, thirdPerson);57 Assertions.assertThat(actual).isEqualTo(secondPerson);58 }59}...
Source:StubbingWithAdditionalAnswers.java
...10import org.mockitousage.IMethods;11import static org.fest.assertions.Assertions.assertThat;12import static org.mockito.AdditionalAnswers.returnsArgAt;13import static org.mockito.AdditionalAnswers.returnsFirstArg;14import static org.mockito.AdditionalAnswers.returnsLastArg;15import static org.mockito.AdditionalAnswers.returnsSecondArg;16import static org.mockito.BDDMockito.given;17import static org.mockito.Matchers.anyInt;18import static org.mockito.Matchers.anyObject;19import static org.mockito.Matchers.anyString;20import static org.mockito.Matchers.anyVararg;21import static org.mockito.Matchers.eq;22@RunWith(MockitoJUnitRunner.class)23public class StubbingWithAdditionalAnswers {24 @Mock IMethods iMethods;25 @Test26 public void can_return_arguments_of_invocation() throws Exception {27 given(iMethods.objectArgMethod(anyObject())).will(returnsFirstArg());28 given(iMethods.threeArgumentMethod(eq(0), anyObject(), anyString())).will(returnsSecondArg());29 given(iMethods.threeArgumentMethod(eq(1), anyObject(), anyString())).will(returnsLastArg());30 assertThat(iMethods.objectArgMethod("first")).isEqualTo("first");31 assertThat(iMethods.threeArgumentMethod(0, "second", "whatever")).isEqualTo("second");32 assertThat(iMethods.threeArgumentMethod(1, "whatever", "last")).isEqualTo("last");33 }34 @Test35 public void can_return_expanded_arguments_of_invocation() throws Exception {36 given(iMethods.varargsObject(eq(1), anyVararg())).will(returnsArgAt(3));37 assertThat(iMethods.varargsObject(1, "bob", "alexander", "alice", "carl")).isEqualTo("alice");38 }39 @Test40 public void can_return_primitives_or_wrappers() throws Exception {41 given(iMethods.toIntPrimitive(anyInt())).will(returnsFirstArg());42 given(iMethods.toIntWrapper(anyInt())).will(returnsFirstArg());43 assertThat(iMethods.toIntPrimitive(1)).isEqualTo(1);...
returnsLastArg
Using AI Code Generation
1import static org.mockito.Mockito.mock;2import static org.mockito.Mockito.when;3import static org.mockito.AdditionalAnswers.returnsLastArg;4import java.util.List;5public class ReturnsLastArgExample {6 public static void main(String[] args) {7 List list = mock(List.class);8 when(list.add("one")).then(returnsLastArg());9 list.add("one");10 System.out.println(list.add("two"));11 }12}13import static org.mockito.Mockito.mock;14import static org.mockito.Mockito.when;15import static org.mockito.AdditionalAnswers.returnsFirstArg;16import java.util.List;17public class ReturnsFirstArgExample {18 public static void main(String[] args) {19 List list = mock(List.class);20 when(list.add("one")).then(returnsFirstArg());21 list.add("one");22 System.out.println(list.add("two"));23 }24}25import static org.mockito.Mockito.mock;26import static org.mockito.Mockito.when;27import static org.mockito.AdditionalAnswers.returnsSecondArg;28import java.util.List;29public class ReturnsSecondArgExample {30 public static void main(String[] args) {31 List list = mock(List.class);32 when(list.add("one")).then(returnsSecondArg());33 list.add("one");34 System.out.println(list.add("two"));35 }36}37import static org.mockito.Mockito.mock;38import static org.mockito.Mockito.when;39import static org.mockito.AdditionalAnswers.returnsArgAt;40import java.util.List;41public class ReturnsArgAtExample {42 public static void main(String[] args) {43 List list = mock(List.class);44 when(list.add("one")).then(returnsArgAt(1));45 list.add("one");46 System.out.println(list.add("two"));47 }48}49import static org.mockito.Mockito.mock;50import static org.mockito.Mockito.when;51import static org.mockito.AdditionalAnswers.returnsElements
returnsLastArg
Using AI Code Generation
1import org.mockito.AdditionalAnswers;2import org.mockito.Mock;3import org.mockito.Mockito;4import org.mockito.MockitoAnnotations;5import org.mockito.Spy;6import org.mockito.stubbing.Answer;7import org.testng.annotations.BeforeMethod;8import org.testng.annotations.Test;9import java.util.Arrays;10import java.util.List;11import static org.mockito.Mockito.*;12public class MockitoReturnsLastArgTest {13 private List<String> list;14 private List<String> spyList;15 public void setUp() {16 MockitoAnnotations.initMocks(this);17 }18 public void testReturnsLastArg() {19 when(list.add(anyString())).then(AdditionalAnswers.returnsLastArg());20 String result = list.add("test");21 System.out.println(result);22 }23 public void testReturnsLastArgWithSpy() {24 when(spyList.add(anyString())).then(AdditionalAnswers.returnsLastArg());25 String result = spyList.add("test");26 System.out.println(result);27 }28 public void testReturnsLastArgWithSpy2() {29 when(spyList.addAll(anyCollection())).then(AdditionalAnswers.returnsLastArg());30 List<String> result = spyList.addAll(Arrays.asList("test1", "test2"));31 System.out.println(result);32 }33 public void testReturnsLastArgWithSpy3() {34 doReturn(true).when(spyList).add(anyString());35 boolean result = spyList.add("test");36 System.out.println(result);37 }38 public void testReturnsLastArgWithSpy4() {39 doReturn(true).when(spyList).addAll(anyCollection());40 boolean result = spyList.addAll(Arrays.asList("test1", "test2"));41 System.out.println(result);42 }43 public void testReturnsLastArgWithSpy5() {44 doAnswer(AdditionalAnswers.returnsLastArg()).when(spyList).add(anyString());45 String result = spyList.add("test");46 System.out.println(result);47 }48 public void testReturnsLastArgWithSpy6() {
returnsLastArg
Using AI Code Generation
1import org.mockito.AdditionalAnswers;2import org.mockito.Mockito;3import java.util.List;4public class ReturnsLastArgExample {5 public static void main(String[] args) {6 List list = Mockito.mock(List.class);7 Mockito.when(list.get(Mockito.anyInt())).then(AdditionalAnswers.returnsLastArg());8 list.add("Hello");9 list.add("Mockito");10 System.out.println(list.get(0));11 System.out.println(list.get(1));12 }13}14Mockito returnsFirstArg() Method Example15Mockito returnsSecondArg() Method Example
returnsLastArg
Using AI Code Generation
1public class 1 {2 public static void main(String[] args) {3 List mock = mock(List.class);4 when(mock.add(anyString())).then(returnsLastArg());5 mock.add("one");6 mock.add("two");7 assertEquals("two", mock.add("three"));8 }9}10public class 2 {11 public static void main(String[] args) {12 List mock = mock(List.class);13 when(mock.add(anyString())).then(returnsFirstArg());14 mock.add("one");15 mock.add("two");16 assertEquals("one", mock.add("three"));17 }18}19public class 3 {20 public static void main(String[] args) {21 List mock = mock(List.class);22 when(mock.add(anyString())).then(returnsFirstArg());23 mock.add("one");24 mock.add("two");25 assertEquals("one", mock.add("three"));26 }27}28public class 4 {29 public static void main(String[] args) {30 List mock = mock(List.class);31 when(mock.add(anyString())).then(returnsArgAt(0));32 mock.add("one");33 mock.add("two");34 assertEquals("one", mock.add("three"));35 }36}37public class 5 {38 public static void main(String[] args) {39 List mock = mock(List.class);40 when(mock.add(anyString())).then(returnsArgAt(1));41 mock.add("one");42 mock.add("two");43 assertEquals("two", mock.add("three"));44 }45}46public class 6 {47 public static void main(String[] args) {48 List mock = mock(List.class);49 when(mock.add(anyString())).then(returnsArg
returnsLastArg
Using AI Code Generation
1import org.mockito.AdditionalAnswers;2import org.mockito.Mockito;3public class ReturnsLastArg {4 public static void main(String[] args) {5 SomeClass mock = Mockito.mock(SomeClass.class);6 Mockito.when(mock.someMethod(Mockito.anyInt(), Mockito.anyInt())).then(AdditionalAnswers.returnsLastArg());7 System.out.println(mock.someMethod(1, 2));8 }9}10class SomeClass {11 public int someMethod(int i, int j) {12 return i + j;13 }14}15Related posts: Mockito – How to use doThrow() method of Mockito class? Mockito – How to use doReturn() method of Mockito class? Mockito – How to use doCallRealMethod() metho
returnsLastArg
Using AI Code Generation
1import org.mockito.Mockito;2import org.mockito.stubbing.Answer;3public class ReturnsLastArgTest {4 public static void main(String[] args) {5 MyInterface myInterface = Mockito.mock(MyInterface.class);6 Answer<String> answer = AdditionalAnswers.returnsLastArg();7 Mockito.when(myInterface.someMethod(Mockito.anyString())).thenAnswer(answer);8 String result = myInterface.someMethod("Hello");9 System.out.println(result);10 }11}12import org.mockito.Mockito;13import org.mockito.stubbing.Answer;14public class ReturnsFirstArgTest {15 public static void main(String[] args) {16 MyInterface myInterface = Mockito.mock(MyInterface.class);17 Answer<String> answer = AdditionalAnswers.returnsFirstArg();18 Mockito.when(myInterface.someMethod(Mockito.anyString(), Mockito.anyString())).thenAnswer(answer);19 String result = myInterface.someMethod("Hello", "World");20 System.out.println(result);21 }22}23import org.mockito.Mockito;24import org.mockito.stubbing.Answer;25public class ReturnsSecondArgTest {26 public static void main(String[] args) {27 MyInterface myInterface = Mockito.mock(MyInterface.class);28 Answer<String> answer = AdditionalAnswers.returnsSecondArg();29 Mockito.when(myInterface.someMethod(Mockito.anyString(), Mockito.anyString())).thenAnswer(answer);30 String result = myInterface.someMethod("Hello", "World");31 System.out.println(result);32 }33}34import org.mockito.Mockito;35import org.mockito.stubbing.Answer;36public class ReturnsArgAtTest {37 public static void main(String[] args) {38 MyInterface myInterface = Mockito.mock(My
returnsLastArg
Using AI Code Generation
1public class Test {2 public void test() {3 List mockList = mock(List.class);4 doAnswer(AdditionalAnswers.returnsLastArg()).when(mockList).add(any());5 mockList.add("hello");6 assertEquals("hello", mockList.get(0));7 }8}9at org.junit.Assert.fail(Assert.java:88)10at org.junit.Assert.failNotEquals(Assert.java:834)11at org.junit.Assert.assertEquals(Assert.java:645)12at org.junit.Assert.assertEquals(Assert.java:631)13at Test.test(1.java:7)14at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)15at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)16at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)17at java.lang.reflect.Method.invoke(Method.java:498)18at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)19at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)20at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)21at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)22at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)23at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)24at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)25at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)26at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)27at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)28at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)29at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)30at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)31at org.junit.runners.ParentRunner.run(ParentRunner.java:363)32at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)33at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
returnsLastArg
Using AI Code Generation
1import org.mockito.AdditionalAnswers;2import org.mockito.Mockito;3import static org.mockito.Mockito.mock;4public class returnsLastArgExample {5 public static void main(String[] args) {6 MyInterface myInterface = mock(MyInterface.class);7 Mockito.when(myInterface.doSomething("Hello")).then(AdditionalAnswers.returnsLastArg());8 System.out.println(myInterface.doSomething("Hello"));9 }10}11interface MyInterface {12 String doSomething(String s);13}
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