How to use Answers class of org.mockito package

Best Mockito code snippet using org.mockito.Answers

Source:InvocationContainerImpl.java

...4 */5package org.mockito.internal.stubbing;6import org.mockito.internal.invocation.InvocationMatcher;7import org.mockito.internal.invocation.StubInfoImpl;8import org.mockito.internal.stubbing.answers.AnswersValidator;9import org.mockito.internal.verification.DefaultRegisteredInvocations;10import org.mockito.internal.verification.RegisteredInvocations;11import org.mockito.internal.verification.SingleRegisteredInvocation;12import org.mockito.invocation.Invocation;13import org.mockito.mock.MockCreationSettings;14import org.mockito.stubbing.Answer;15import static org.mockito.internal.progress.ThreadSafeMockingProgress.mockingProgress;16import java.io.Serializable;17import java.util.ArrayList;18import java.util.LinkedList;19import java.util.List;20@SuppressWarnings("unchecked")21public class InvocationContainerImpl implements InvocationContainer, Serializable {22    private static final long serialVersionUID = -5334301962749537177L;23    private final LinkedList<StubbedInvocationMatcher> stubbed = new LinkedList<StubbedInvocationMatcher>();24    private final List<Answer<?>> answersForStubbing = new ArrayList<Answer<?>>();25    private final RegisteredInvocations registeredInvocations;26    private InvocationMatcher invocationForStubbing;27    public InvocationContainerImpl(MockCreationSettings mockSettings) {28        this.registeredInvocations = createRegisteredInvocations(mockSettings);29    }30    public void setInvocationForPotentialStubbing(InvocationMatcher invocation) {31        registeredInvocations.add(invocation.getInvocation());32        this.invocationForStubbing = invocation;33    }34    public void resetInvocationForPotentialStubbing(InvocationMatcher invocationMatcher) {35        this.invocationForStubbing = invocationMatcher;36    }37    public void addAnswer(Answer answer) {38        registeredInvocations.removeLast();39        addAnswer(answer, false);40    }41    public void addConsecutiveAnswer(Answer answer) {42        addAnswer(answer, true);43    }44    public void addAnswer(Answer answer, boolean isConsecutive) {45        Invocation invocation = invocationForStubbing.getInvocation();46        mockingProgress().stubbingCompleted(invocation);47        AnswersValidator answersValidator = new AnswersValidator();48        answersValidator.validate(answer, invocation);49        synchronized (stubbed) {50            if (isConsecutive) {51                stubbed.getFirst().addAnswer(answer);52            } else {53                stubbed.addFirst(new StubbedInvocationMatcher(invocationForStubbing, answer));54            }55        }56    }57    Object answerTo(Invocation invocation) throws Throwable {58        return findAnswerFor(invocation).answer(invocation);59    }60    public StubbedInvocationMatcher findAnswerFor(Invocation invocation) {61        synchronized (stubbed) {62            for (StubbedInvocationMatcher s : stubbed) {63                if (s.matches(invocation)) {64                    mockingProgress().getStubbingListener().usedStubbing(s.getInvocation(), invocation);65                    s.markStubUsed(invocation);66                    invocation.markStubbed(new StubInfoImpl(s));67                    return s;68                }69            }70        }71        return null;72    }73    public void addAnswerForVoidMethod(Answer answer) {74        answersForStubbing.add(answer);75    }76    public void setAnswersForStubbing(List<Answer<?>> answers) {77        answersForStubbing.addAll(answers);78    }79    public boolean hasAnswersForStubbing() {80        return !answersForStubbing.isEmpty();81    }82    public boolean hasInvocationForPotentialStubbing() {83        return !registeredInvocations.isEmpty();84    }85    public void setMethodForStubbing(InvocationMatcher invocation) {86        invocationForStubbing = invocation;87        assert hasAnswersForStubbing();88        for (int i = 0; i < answersForStubbing.size(); i++) {89            addAnswer(answersForStubbing.get(i), i != 0);90        }91        answersForStubbing.clear();92    }93    @Override94    public String toString() {95        return "invocationForStubbing: " + invocationForStubbing;96    }97    public List<Invocation> getInvocations() {98        return registeredInvocations.getAll();99    }100    public void clearInvocations() {101        registeredInvocations.clear();...

Source:Answers.java

...19 * Example:20 * <pre class="code"><code class="java">21 *   &#064;Mock(answer = RETURNS_DEEP_STUBS) UserProvider userProvider;22 * </code></pre>23 * <b>This is not the full list</b> of Answers available in Mockito. Some interesting answers can be found in org.mockito.stubbing.answers package.24 */25public enum Answers implements Answer<Object>{26    /**27     * The default configured answer of every mock.28     *29     * <p>Please see the {@link org.mockito.Mockito#RETURNS_DEFAULTS} documentation for more details.</p>30     *31     * @see org.mockito.Mockito#RETURNS_DEFAULTS32     */33    RETURNS_DEFAULTS(new GloballyConfiguredAnswer()),34    /**35     * An answer that returns smart-nulls.36     *37     * <p>Please see the {@link org.mockito.Mockito#RETURNS_SMART_NULLS} documentation for more details.</p>38     *39     * @see org.mockito.Mockito#RETURNS_SMART_NULLS40     */41    RETURNS_SMART_NULLS(new ReturnsSmartNulls()),42    /**43     * An answer that returns <strong>mocks</strong> (not stubs).44     *45     * <p>Please see the {@link org.mockito.Mockito#RETURNS_MOCKS} documentation for more details.</p>46     *47     * @see org.mockito.Mockito#RETURNS_MOCKS48     */49    RETURNS_MOCKS(new ReturnsMocks()),50    /**51     * An answer that returns <strong>deep stubs</strong> (not mocks).52     *53     * <p>Please see the {@link org.mockito.Mockito#RETURNS_DEEP_STUBS} documentation for more details.</p>54     *55     * @see org.mockito.Mockito#RETURNS_DEEP_STUBS56     */57    RETURNS_DEEP_STUBS(new ReturnsDeepStubs()),58    /**59     * An answer that calls the real methods (used for partial mocks).60     *61     * <p>Please see the {@link org.mockito.Mockito#CALLS_REAL_METHODS} documentation for more details.</p>62     *63     * @see org.mockito.Mockito#CALLS_REAL_METHODS64     */65    CALLS_REAL_METHODS(new CallsRealMethods()),66    /**67     * An answer that tries to return itself. This is useful for mocking {@code Builders}.68     *69     * <p>Please see the {@link org.mockito.Mockito#RETURNS_SELF} documentation for more details.</p>70     *71     * @see org.mockito.Mockito#RETURNS_SELF72     */73    RETURNS_SELF(new TriesToReturnSelf())74    ;75    private final Answer<Object> implementation;76    Answers(Answer<Object> implementation) {77        this.implementation = implementation;78    }79    /**80     * @deprecated as of 2.0. Use the enum-constant directly, instead of this getter. This method will be removed in a future release<br>81     * E.g. instead of <code>Answers.CALLS_REAL_METHODS.get()</code> use <code>Answers.CALLS_REAL_METHODS</code> .82     */83    @Deprecated84    public Answer<Object> get() {85        return this;86    }87    public Object answer(InvocationOnMock invocation) throws Throwable {88        return implementation.answer(invocation);89    } 90}...

Source:StubberImpl.java

...26		if (!MockUtil.isMock(mock)) {27			throw notAMockPassedToWhenMethod();28		}29        30		MockUtil.getMockHandler(mock).setAnswersForStubbing(answers);31        return mock;32    }33    public Stubber doReturn(Object toBeReturned) {34        return doReturnValues(toBeReturned);35    }36    public Stubber doReturn(Object toBeReturned, Object... nextToBeReturned) {37        return doReturnValues(toBeReturned).doReturnValues(nextToBeReturned);38    }39    private StubberImpl doReturnValues(Object... toBeReturned) {40        if(toBeReturned == null) {41            answers.add(new Returns(null));42            return this;43        }44        for (Object r : toBeReturned) {...

Answers

Using AI Code Generation

1import static org.mockito.Mockito.*;2import static org.junit.Assert.*;3import org.junit.Test;4public class TestJunit1 {5   public void testAdd() {6      Answers mockedList = mock(Answers.class);7      when(mockedList.getAnswer()).thenReturn("42");8      assertEquals("42",mockedList.getAnswer());9   }10}

Answers

Using AI Code Generation

1import org.mockito.Answers;2import org.mockito.Mock;3import org.mockito.MockitoAnnotations;4import org.testng.annotations.BeforeMethod;5import org.testng.annotations.Test;6import static org.mockito.Mockito.*;7public class AnswersTest {8    @Mock(answer = Answers.RETURNS_SMART_NULLS)9    private List mockedList;10    public void initMocks() {11        MockitoAnnotations.initMocks(this);12    }13    public void testStubbing() {14        mockedList.add("one");15        System.out.println(mockedList.get(0));16        System.out.println(mockedList.get(999));17    }18}19import org.mockito.Mock;20import org.mockito.MockitoAnnotations;21import org.mockito.internal.stubbing.answers.ReturnsMocks;22import org.testng.annotations.BeforeMethod;23import org.testng.annotations.Test;24import static org.mockito.Mockito.*;25public class ReturnsMocksTest {26    private List mockedList;27    public void initMocks() {28        MockitoAnnotations.initMocks(this);29    }30    public void testStubbing() {31        mockedList.add("one");32        System.out.println(mockedList.get(0));33        System.out.println(mockedList.get(999));34    }35}36import org.mockito.Mock;37import org.mockito.MockitoAnnotations;38import org.mockito.internal.stubbing.answers.ReturnsEmptyValues;39import org.testng.annotations.BeforeMethod;40import org.testng.annotations.Test;41import static org.mockito.Mockito.*;42public class ReturnsEmptyValuesTest {43    private List mockedList;44    public void initMocks() {45        MockitoAnnotations.initMocks(this);46    }47    public void testStubbing() {48        mockedList.add("one");49        System.out.println(mockedList.get(0));50        System.out.println(mockedList.get(999));51    }52}53import org.mockito.Mock;54import org.mockito.MockitoAnnotations;55import org.mockito.internal.stubbing.answers.ReturnsDelegatesTo;56import org.testng.annotations.BeforeMethod;57import org.testng.annotations.Test;58import static org.mockito.Mockito.*;59public class ReturnsDelegatesToTest {60    private List mockedList;61    public void initMocks()

Answers

Using AI Code Generation

1import static org.mockito.Mockito.*;2import java.util.List;3public class MockitoTest {4	public static void main(String[] args) {5		List mockedList = mock(List.class);6		mockedList.add("one");7		mockedList.clear();8		System.out.println(mockedList);9		verify(mockedList).add("one");10		verify(mockedList).clear();11	}12}

Answers

Using AI Code Generation

1package com.ack.j2se.mockito;2import static org.mockito.Mockito.*;3import java.util.LinkedList;4import java.util.List;5public class AnswersTest {6  public static void main( String[] args ) {7    LinkedList mockedList = mock( LinkedList.class );8    when( mockedList.get( 0 ) ).thenReturn( "first" );9    when( mockedList.get( 1 ) ).thenThrow( new RuntimeException() );10    System.out.println( mockedList.get( 0 ) );11    System.out.println( mockedList.get( 1 ) );12    System.out.println( mockedList.get( 999 ) );13    verify( mockedList ).get( 0 );14  }15}16package com.ack.j2se.mockito;17import static org.mockito.Mockito.*;18import java.util.LinkedList;19import java.util.List;20public class ArgumentMatcherTest {21  public static void main( String[] args ) {22    LinkedList mockedList = mock( LinkedList.class );23    when( mockedList.get( anyInt() ) ).thenReturn( "element" );24    when( mockedList.contains( argThat( new IsValid() ) ) ).thenReturn( true );25    System.out.println( mockedList.get( 999 ) );26    verify( mockedList ).get( anyInt() );27    verify( mockedList ).add( argThat( ( String argument ) -> argument.length

Answers

Using AI Code Generation

1import static org.mockito.Mockito.*;2import org.mockito.Mockito;3import org.mockito.MockitoAnnotations;4import org.mockito.Mock;5import org.mockito.InjectMocks;6import org.mockito.Spy;7import org.mockito.runners.MockitoJUnitRunner;8import org.mockito.ArgumentCaptor;9import org.mockito.exceptions.verification.NoInteractionsWanted;10import org.mockito.exceptions.verification.WantedButNotInvoked;11import org.mockito.exceptions.verification.VerificationInOrderFailure;12import org.mockito.exceptions.verification.NeverWantedButInvoked;13import org.mockito.exceptions.verification.TooLittleActualInvocations;14import org.mockito.exceptions.verification.TooManyActualInvocations;15import org.mockito.exceptions.verification.junit.ArgumentsAreDifferent;16import org.mockito.exceptions.verification.junit.NoInteractionsWanted;17import org.mockito.exceptions.verification.junit.WantedButNotInvoked;18import org.mockito.exceptions.verification.junit.VerificationInOrderFailure;19import org.mockito.exceptions.verification.junit.NeverWantedButInvoked;20import org.mockito.exceptions.verification.junit.TooLittleActualInvocations;21import org.mockito.exceptions.verification.junit.TooManyActualInvocations;22import org.mockito.exceptions.verification.juni

Answers

Using AI Code Generation

1import static org.mockito.Mockito.*;2import org.mockito.*;3import org.mockito.invocation.InvocationOnMock;4import org.mockito.stubbing.Answer;5import org.mockito.stubbing.Stubber;6import org.mockito.stubbing.VoidMethodStubber;7public class Test {8    public static void main(String[] args) {9        Answers answers = new Answers() {10            public Object answer(InvocationOnMock invocation) throws Throwable {11                return null;12            }13            public Stubber doAnswer(Answer answer) {14                return null;15            }

Answers

Using AI Code Generation

1import static org.mockito.Mockito.*;2import org.mockito.*;3import org.junit.*;4import org.junit.runner.*;5import org.junit.runners.*;6import org.junit.runners.Parameterized.*;7import org.junit.runners.Parameterized;8import java.util.*;9import java.util.Arrays;10import java.util.Collection;11import java.util.List;12import java.util.ArrayList;13import java.util.Iterator;14@RunWith(Parameterized.class)15public class TestAnswers{16  private Answers answers;17  private String input;18  private String expected;19  public TestAnswers(String input, String expected){20    this.input = input;21    this.expected = expected;22  }23  public void initialize(){24    answers = new Answers();25  }26  public static Collection<String[]> answers(){27    return Arrays.asList(new String[][]{28      {"1+1","2"},{"1+2","3"},{"1+3","4"},{"1+4","5"},{"1+5","6"},{"1+6","7"},{"1+7","8"},{"1+8","9"},{"1+9","10"},{"1+10","11"},{"1+11","12"},{"1+12","13"},{"1+13","14"},{"1+14","15"},{"1+15","16"},{"1+16","17"},{"1+17","18"},{"1+18","19"},{"1+19","20"},{"1+20","21"},{"1+21","22"},{"1+22","23"},{"1+23","24"},{"1+24","25"},{"1+25","26"},{"1+26","27"},{"1+27","28"},{"1+28","29"},{"1+29","30"},{"1+30","31"},{"1+31","32"},{"1+32","33"},{"1+33","34"},{"1+34","35"},{"1+35","36"},{"1+36","37"},{"1+37","38"},{"1+38","39"},{"1+39","40"},{"1+40","41"},{"1+41","42"},{"1+42","43"},{"1+43","44"},{"1+44","45"},{"1+45","46"},{"1+46","47"},{"1+47","48"},{"1+48","49"},{"1+49","50"},{"1+50","51"},{"1+51","52"},{"1+52","53"},{"1+53","54"},{"1+54","55"},{"1+55","56"},{"1+56","57"},{"1+57","58"},{"1

Answers

Using AI Code Generation

1import org.mockito.*;2import static org.mockito.Mockito.*;3import static org.junit.Assert.*;4import org.junit.*;5import java.util.*;6public class AnswersTest{7	public void testAnswers(){8		List mock = mock(List.class);9		when(mock.size()).thenAnswer(new Answer(){10			public Object answer(InvocationOnMock invocation){11				return 100;12			}13		});14		System.out.println("mock.size() = " + mock.size());15		System.out.println("mock.size() = " + mock.size());16	}17}

Answers

Using AI Code Generation

1package org.mockito;2import static org.mockito.Mockito.*;3import static org.junit.Assert.*;4import org.junit.Test;5public class TestAnswers {6	public void testAnswers() {7		Answers answers = mock(Answers.class);8		when(answers.getAnswers(anyInt())).thenReturn("Mockito Answers");9		assertEquals(answers.getAnswers(1), "Mockito Answers");10	}11}

Answers

Using AI Code Generation

1package org.mockito;2import static org.mockito.Mockito.*;3import org.mockito.Answers;4public class Test {5    public static void main(String[] args) {6        Answers ans = mock(Answers.class);7        when(ans.answer()).thenReturn("Hello");8        System.out.println(ans.answer());9    }10}11package org.mockito;12import static org.mockito.Mockito.*;13import org.mockito.ReturnsEmptyValues;14public class Test {15    public static void main(String[] args) {16        ReturnsEmptyValues ans = mock(ReturnsEmptyValues.class);17        when(ans.answer()).thenReturn("Hello");18        System.out.println(ans.answer());19    }20}21package org.mockito;22import static org.mockito.Mockito.*;23import org.mockito.ReturnsMocks;24public class Test {25    public static void main(String[] args) {26        ReturnsMocks ans = mock(ReturnsMocks.class);27        when(ans.answer()).thenReturn("Hello");28        System.out.println(ans.answer());29    }30}31package org.mockito;32import static org.mockito.Mockito.*;33import org.mockito.ReturnsSmartNulls;34public class Test {35    public static void main(String[] args) {36        ReturnsSmartNulls ans = mock(ReturnsSmartNulls.class);37        when(ans.answer()).thenReturn("Hello");38        System.out.println(ans.answer());39    }40}41package org.mockito;42import static org.mockito.Mockito.*;43import org.mockito.ReturnsDeepStubs;44public class Test {45    public static void main(String[] args) {46        ReturnsDeepStubs ans = mock(ReturnsDeepStubs.class);47        when(ans.answer()).thenReturn("Hello");48        System.out.println(ans.answer());49    }50}51package org.mockito;52import static org.mockito.Mockito.*;53import org.mockito.DoNotStub;54public class Test {55    public static void main(String[] args) {56        DoNotStub ans = mock(DoNotStub.class);57        when(ans.answer()).thenReturn("Hello");58public class Test {59    public static void main(String[] args) {60        Answers answers = new Answers() {61            public Object answer(InvocationOnMock invocation) throws Throwable {62                return null;63            }64            public Stubber doAnswer(Answer answer) {65                return null;66            }

Answers

Using AI Code Generation

1package org.mockito;2import static org.mockito.Mockito.*;3import static org.junit.Assert.*;4import org.junit.Test;5public class TestAnswers {6	public void testAnswers() {7		Answers answers = mock(Answers.class);8		when(answers.getAnswers(anyInt())).thenReturn("Mockito Answers");9		assertEquals(answers.getAnswers(1), "Mockito Answers");10	}11}

Answers

Using AI Code Generation

1package org.mockito;2import static org.mockito.Mockito.*;3import org.mockito.Answers;4public class Test {5    public static void main(String[] args) {6        Answers ans = mock(Answers.class);7        when(ans.answer()).thenReturn("Hello");8        System.out.println(ans.answer());9    }10}11package org.mockito;12import static org.mockito.Mockito.*;13import org.mockito.ReturnsEmptyValues;14public class Test {15    public static void main(String[] args) {16        ReturnsEmptyValues ans = mock(ReturnsEmptyValues.class);17        when(ans.answer()).thenReturn("Hello");18        System.out.println(ans.answer());19    }20}21package org.mockito;22import static org.mockito.Mockito.*;23import org.mockito.ReturnsMocks;24public class Test {25    public static void main(String[] args) {26        ReturnsMocks ans = mock(ReturnsMocks.class);27        when(ans.answer()).thenReturn("Hello");28        System.out.println(ans.answer());29    }30}31package org.mockito;32import static org.mockito.Mockito.*;33import org.mockito.ReturnsSmartNulls;34public class Test {35    public static void main(String[] args) {36        ReturnsSmartNulls ans = mock(ReturnsSmartNulls.class);37        when(ans.answer()).thenReturn("Hello");38        System.out.println(ans.answer());39    }40}41package org.mockito;42import static org.mockito.Mockito.*;43import org.mockito.ReturnsDeepStubs;44public class Test {45    public static void main(String[] args) {46        ReturnsDeepStubs ans = mock(ReturnsDeepStubs.class);47        when(ans.answer()).thenReturn("Hello");48        System.out.println(ans.answer());49    }50}51package org.mockito;52import static org.mockito.Mockito.*;53import org.mockito.DoNotStub;54public class Test {55    public static void main(String[] args) {56        DoNotStub ans = mock(DoNotStub.class);57        when(ans.answer()).thenReturn("Hello");

Answers

Using AI Code Generation

1import static org.mockito.Mockito.*;2import org.mockito.*;3import org.mockito.invocation.InvocationOnMock;4import org.mockito.stubbing.Answer;5import org.mockito.stubbing.Stubber;6import org.mockito.stubbing.VoidMethodStubber;7public class Test {8    public static void main(String[] args) {9        Answers answers = new Answers() {10            public Object answer(InvocationOnMock invocation) throws Throwable {11                return null;12            }13            public Stubber doAnswer(Answer answer) {14                return null;15            }

Answers

Using AI Code Generation

1package org.mockito;2import static org.mockito.Mockito.*;3import org.mockito.Answers;4public class Test {5    public static void main(String[] args) {6        Answers ans = mock(Answers.class);7        when(ans.answer()).thenReturn("Hello");8        System.out.println(ans.answer());9    }10}11package org.mockito;12import static org.mockito.Mockito.*;13import org.mockito.ReturnsEmptyValues;14public class Test {15    public static void main(String[] args) {16        ReturnsEmptyValues ans = mock(ReturnsEmptyValues.class);17        when(ans.answer()).thenReturn("Hello");18        System.out.println(ans.answer());19    }20}21package org.mockito;22import static org.mockito.Mockito.*;23import org.mockito.ReturnsMocks;24public class Test {25    public static void main(String[] args) {26        ReturnsMocks ans = mock(ReturnsMocks.class);27        when(ans.answer()).thenReturn("Hello");28        System.out.println(ans.answer());29    }30}31package org.mockito;32import static org.mockito.Mockito.*;33import org.mockito.ReturnsSmartNulls;34public class Test {35    public static void main(String[] args) {36        ReturnsSmartNulls ans = mock(ReturnsSmartNulls.class);37        when(ans.answer()).thenReturn("Hello");38        System.out.println(ans.answer());39    }40}41package org.mockito;42import static org.mockito.Mockito.*;43import org.mockito.ReturnsDeepStubs;44public class Test {45    public static void main(String[] args) {46        ReturnsDeepStubs ans = mock(ReturnsDeepStubs.class);47        when(ans.answer()).thenReturn("Hello");48        System.out.println(ans.answer());49    }50}51package org.mockito;52import static org.mockito.Mockito.*;53import org.mockito.DoNotStub;54public class Test {55    public static void main(String[] args) {56        DoNotStub ans = mock(DoNotStub.class);57        when(ans.answer()).thenReturn("Hello");

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