How to use MockitoAnnotations method of org.mockito.InjectMocks class

Best Mockito code snippet using org.mockito.InjectMocks.MockitoAnnotations

Source:MockInjectionUsingSetterOrPropertyTest.java Github

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...13import org.junit.Before;14import org.junit.Test;15import org.mockito.InjectMocks;16import org.mockito.Mock;17import org.mockito.MockitoAnnotations;18import org.mockito.Spy;19import org.mockito.exceptions.base.MockitoException;20import org.mockito.internal.util.MockUtil;21import org.mockitousage.IMethods;22import org.mockitoutil.TestBase;23@SuppressWarnings({"unchecked", "unused"})24public class MockInjectionUsingSetterOrPropertyTest extends TestBase {25 private SuperUnderTesting superUnderTestWithoutInjection = new SuperUnderTesting();26 @InjectMocks private SuperUnderTesting superUnderTest = new SuperUnderTesting();27 @InjectMocks private BaseUnderTesting baseUnderTest = new BaseUnderTesting();28 @InjectMocks private SubUnderTesting subUnderTest = new SubUnderTesting();29 @InjectMocks private OtherBaseUnderTesting otherBaseUnderTest = new OtherBaseUnderTesting();30 @InjectMocks31 private HasTwoFieldsWithSameType hasTwoFieldsWithSameType = new HasTwoFieldsWithSameType();32 private BaseUnderTesting baseUnderTestingInstance = new BaseUnderTesting();33 @InjectMocks private BaseUnderTesting initializedBase = baseUnderTestingInstance;34 @InjectMocks private BaseUnderTesting notInitializedBase;35 @Spy @InjectMocks private SuperUnderTesting initializedSpy = new SuperUnderTesting();36 @Spy @InjectMocks private SuperUnderTesting notInitializedSpy;37 @Mock private Map<?, ?> map;38 @Mock private List<?> list;39 @Mock private Set<?> histogram1;40 @Mock private Set<?> histogram2;41 @Mock private IMethods candidate2;42 @Spy private TreeSet<String> searchTree = new TreeSet<String>();43 private AutoCloseable session;44 @Before45 public void enforces_new_instances() {46 // openMocks called in TestBase Before method, so instances are not the same47 session = MockitoAnnotations.openMocks(this);48 }49 @After50 public void close_new_instances() throws Exception {51 if (session != null) {52 session.close();53 }54 }55 @Test56 public void should_keep_same_instance_if_field_initialized() {57 assertSame(baseUnderTestingInstance, initializedBase);58 }59 @Test60 public void should_initialize_annotated_field_if_null() {61 assertNotNull(notInitializedBase);62 }63 @Test64 public void should_inject_mocks_in_spy() {65 assertNotNull(initializedSpy.getAList());66 assertTrue(MockUtil.isMock(initializedSpy));67 }68 @Test69 public void should_initialize_spy_if_null_and_inject_mocks() {70 assertNotNull(notInitializedSpy);71 assertNotNull(notInitializedSpy.getAList());72 assertTrue(MockUtil.isMock(notInitializedSpy));73 }74 @Test75 public void should_inject_mocks_if_annotated() {76 MockitoAnnotations.openMocks(this);77 assertSame(list, superUnderTest.getAList());78 }79 @Test80 public void should_not_inject_if_not_annotated() {81 MockitoAnnotations.openMocks(this);82 assertNull(superUnderTestWithoutInjection.getAList());83 }84 @Test85 public void should_inject_mocks_for_class_hierarchy_if_annotated() {86 MockitoAnnotations.openMocks(this);87 assertSame(list, baseUnderTest.getAList());88 assertSame(map, baseUnderTest.getAMap());89 }90 @Test91 public void should_inject_mocks_by_name() {92 MockitoAnnotations.openMocks(this);93 assertSame(histogram1, subUnderTest.getHistogram1());94 assertSame(histogram2, subUnderTest.getHistogram2());95 }96 @Test97 public void should_inject_spies() {98 MockitoAnnotations.openMocks(this);99 assertSame(searchTree, otherBaseUnderTest.getSearchTree());100 }101 @Test102 public void103 should_insert_into_field_with_matching_name_when_multiple_fields_of_same_type_exists_in_injectee() {104 MockitoAnnotations.openMocks(this);105 assertNull("not injected, no mock named 'candidate1'", hasTwoFieldsWithSameType.candidate1);106 assertNotNull(107 "injected, there's a mock named 'candidate2'", hasTwoFieldsWithSameType.candidate2);108 }109 @Test110 public void should_instantiate_inject_mock_field_if_possible() throws Exception {111 assertNotNull(notInitializedBase);112 }113 @Test114 public void should_keep_instance_on_inject_mock_field_if_present() throws Exception {115 assertSame(baseUnderTestingInstance, initializedBase);116 }117 @Test118 public void should_report_nicely() throws Exception {119 Object failing =120 new Object() {121 @InjectMocks ThrowingConstructor failingConstructor;122 };123 try {124 MockitoAnnotations.openMocks(failing);125 fail();126 } catch (MockitoException e) {127 Assertions.assertThat(e.getMessage())128 .contains("failingConstructor")129 .contains("constructor")130 .contains("threw an exception");131 Assertions.assertThat(e.getCause()).isInstanceOf(RuntimeException.class);132 }133 }134 static class ThrowingConstructor {135 ThrowingConstructor() {136 throw new RuntimeException("aha");137 }138 }...

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Source:WrongSetOfAnnotationsTest.java Github

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...15 @Test16 public void should_not_allow_Mock_and_Spy() {17 assertThatThrownBy(18 () -> {19 MockitoAnnotations.openMocks(20 new Object() {21 @Mock @Spy List<?> mock;22 });23 })24 .isInstanceOf(MockitoException.class)25 .hasMessage(26 "This combination of annotations is not permitted on a single field:\n"27 + "@Spy and @Mock");28 }29 @Test30 public void should_not_allow_Spy_and_InjectMocks_on_interfaces() {31 try {32 MockitoAnnotations.openMocks(33 new Object() {34 @InjectMocks @Spy List<?> mock;35 });36 fail();37 } catch (MockitoException me) {38 Assertions.assertThat(me.getMessage()).contains("'List' is an interface");39 }40 }41 @Test42 public void should_allow_Spy_and_InjectMocks() {43 MockitoAnnotations.openMocks(44 new Object() {45 @InjectMocks @Spy WithDependency mock;46 });47 }48 static class WithDependency {49 List<?> list;50 }51 @Test52 public void should_not_allow_Mock_and_InjectMocks() {53 assertThatThrownBy(54 () -> {55 MockitoAnnotations.openMocks(56 new Object() {57 @InjectMocks @Mock List<?> mock;58 });59 })60 .isInstanceOf(MockitoException.class)61 .hasMessage(62 "This combination of annotations is not permitted on a single field:\n"63 + "@Mock and @InjectMocks");64 }65 @Test66 public void should_not_allow_Captor_and_Mock() {67 assertThatThrownBy(68 () -> {69 MockitoAnnotations.openMocks(70 new Object() {71 @Mock @Captor ArgumentCaptor<?> captor;72 });73 })74 .isInstanceOf(MockitoException.class)75 .hasMessageContainingAll(76 "You cannot have more than one Mockito annotation on a field!",77 "The field 'captor' has multiple Mockito annotations.",78 "For info how to use annotations see examples in javadoc for MockitoAnnotations class.");79 }80 @Test81 public void should_not_allow_Captor_and_Spy() {82 assertThatThrownBy(83 () -> {84 MockitoAnnotations.openMocks(85 new Object() {86 @Spy @Captor ArgumentCaptor<?> captor;87 });88 })89 .isInstanceOf(MockitoException.class)90 .hasMessage(91 "This combination of annotations is not permitted on a single field:\n"92 + "@Spy and @Captor");93 }94 @Test95 public void should_not_allow_Captor_and_InjectMocks() {96 assertThatThrownBy(97 () -> {98 MockitoAnnotations.openMocks(99 new Object() {100 @InjectMocks @Captor ArgumentCaptor<?> captor;101 });102 })103 .isInstanceOf(MockitoException.class)104 .hasMessage(105 "This combination of annotations is not permitted on a single field:\n"106 + "@Captor and @InjectMocks");107 }108}...

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MockitoAnnotations

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1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.InjectMocks;4import org.mockito.Mock;5import org.mockito.MockitoAnnotations;6import org.mockito.runners.MockitoJUnitRunner;7@RunWith(MockitoJUnitRunner.class)8public class MockitoAnnotationsTest {9 private Dependency dependency;10 private ClassTested classTested;11 public void test() {12 MockitoAnnotations.initMocks(this);13 }14}15import org.junit.Test;16import org.junit.runner.RunWith;17import org.mockito.Mock;18import org.mockito.MockitoAnnotations;19import org.mockito.runners.MockitoJUnitRunner;20@RunWith(MockitoJUnitRunner.class)21public class MockitoAnnotationsTest {22 private Dependency dependency;23 public void test() {24 MockitoAnnotations.initMocks(this);25 }26}27import org.junit.Test;28import org.junit.runner.RunWith;29import org.mockito.Mock;30import org.mockito.Mockito;31import org.mockito.runners.MockitoJUnitRunner;32@RunWith(MockitoJUnitRunner.class)33public class MockitoAnnotationsTest {34 private Dependency dependency;35 public void test() {36 MockitoAnnotations.initMocks(this);37 }38}39import org.junit.Test;40import org.junit.runner.RunWith;41import org.mockito.Mock;42import org.mockito.runners.MockitoJUnitRunner;43@RunWith(MockitoJUnitRunner.class)44public class MockitoAnnotationsTest {45 private Dependency dependency;46 public void test() {47 MockitoAnnotations.initMocks(this);48 }49}50import org.junit.Test;51import org.junit.runner.RunWith;52import org.mockito.Mock;53import org.mockito.runners.MockitoJUnitRunner;54@RunWith(MockitoJUnitRunner.class)55public class MockitoAnnotationsTest {56 private Dependency dependency;57 public void test() {58 MockitoAnnotations.initMocks(this);59 }60}61import org.junit.Test;62import org.junit.runner.RunWith;63import org.mockito.Mock;64import org.mockito.runners.MockitoJUnit

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MockitoAnnotations

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1import org.mockito.InjectMocks;2import org.mockito.Mock;3import org.mockito.MockitoAnnotations;4import org.mockito.runners.MockitoJUnitRunner;5import org.junit.Before;6import org.junit.Test;7import org.junit.runner.RunWith;8import static org.junit.Assert.assertEquals;9import static org.mockito.Mockito.when;10@RunWith(MockitoJUnitRunner.class)11public class MockitoAnnotationsTest {12 CalculatorService calcService;13 Calculator calc;14 public void setup() {15 MockitoAnnotations.initMocks(this);16 }17 public void test() {18 when(calcService.add(10.0,20.0)).thenReturn(30.0);19 assertEquals(calc.add(10.0,20.0),30.0,0);20 }21}

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MockitoAnnotations

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1import org.mockito.InjectMocks;2import org.mockito.Mock;3import org.mockito.MockitoAnnotations;4import org.mockito.runners.MockitoJUnitRunner;5import org.junit.Before;6import org.junit.Test;7import org.junit.runner.RunWith;8import java.util.ArrayList;9import java.util.List;10@RunWith(MockitoJUnitRunner.class)11public class 1 {12 private List<String> mockList;13 private ArrayList<String> arrayList;14 public void setup() {15 MockitoAnnotations.initMocks(this);16 }17 public void test() {18 arrayList.add("one");19 verify(mockList).add("one");20 }21}22at org.junit.Assert.fail(Assert.java:88)23at org.junit.Assert.failNotEquals(Assert.java:743)24at org.junit.Assert.assertEquals(Assert.java:118)25at org.junit.Assert.assertEquals(Assert.java:144)26at 1.test(1.java:23)27import org.mockito.InjectMocks;28import org.mockito.Mock;29import org.mockito.MockitoAnnotations;30import org.mockito.runners.MockitoJUnitRunner;31import org.junit.Before;32import org.junit.Test;33import org.junit.runner.RunWith;34import java.util.ArrayList;35import java.util.List;36import static org.mockito.Mockito.*;37@RunWith(MockitoJUnitRunner.class)38public class 1 {39 private List<String> mockList;40 private ArrayList<String> arrayList;41 public void setup() {42 MockitoAnnotations.initMocks(this);43 }44 public void test() {45 arrayList.add("one");46 verify(mockList).add("one");47 }48}49at org.junit.Assert.fail(Assert.java:88)50at org.junit.Assert.failNotEquals(Assert.java:743)51at org.junit.Assert.assertEquals(Assert.java:118)52at org.junit.Assert.assertEquals(Assert.java:144)53at 1.test(1.java:23)

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1import org.mockito.InjectMocks;2import org.mockito.Mock;3import org.mockito.MockitoAnnotations;4import org.mockito.runners.MockitoJUnitRunner;5import org.junit.Test;6import org.junit.runner.RunWith;7import static org.junit.Assert.assertEquals;8import static org.mockito.Mockito.when;9import java.util.ArrayList;10import java.util.List;11@RunWith(MockitoJUnitRunner.class)12public class MockitoAnnotationsTest {13 List<String> mockList;14 ArrayList<String> injectList = new ArrayList<>();15 public void test() {16 MockitoAnnotations.initMocks(this);17 when(mockList.size()).thenReturn(100);18 assertEquals(100, injectList.size());19 }20}

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MockitoAnnotations

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1package org.mockito;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.InjectMocks;5import org.mockito.Mock;6import org.mockito.MockitoAnnotations;7import org.mockito.runners.MockitoJUnitRunner;8import static org.mockito.Mockito.*;9@RunWith(MockitoJUnitRunner.class)10public class Test1 {11 private String string;12 private Test1 test1 = new Test1();13 public void test() {14 MockitoAnnotations.initMocks(this);15 when(string.toString()).thenReturn("Hello World");16 System.out.println(test1.string.toString());17 }18}19package org.mockito;20import org.junit.Test;21import org.junit.runner.RunWith;22import org.mockito.InjectMocks;23import org.mockito.Mock;24import org.mockito.runners.MockitoJUnitRunner;25import static org.mockito.Mockito.*;26@RunWith(MockitoJUnitRunner.class)27public class Test2 {28 private String string;29 private Test2 test2 = new Test2();30 public void test() {31 MockitoAnnotations.initMocks(this);32 when(string.toString()).thenReturn("Hello World");33 System.out.println(test2.string.toString());34 }35}

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MockitoAnnotations

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1import org.mockito.InjectMocks;2import org.mockito.Mock;3import org.mockito.MockitoAnnotations;4import org.mockito.junit.MockitoJUnitRunner;5import org.junit.runner.RunWith;6import org.junit.Test;7import org.junit.Before;8import org.junit.Assert;9@RunWith(MockitoJUnitRunner.class)10public class 1 {11 private 2 mock2;12 private 3 mock3;13 public void setUp() {14 MockitoAnnotations.initMocks(this);15 }16 public void test() {17 Assert.assertNotNull(mock2);18 Assert.assertNotNull(mock3);19 }20}21import org.mockito.InjectMocks;22import org.mockito.Mock;23import org.mockito.MockitoAnnotations;24import org.mockito.junit.MockitoJUnitRunner;25import org.junit.runner.RunWith;26import org.junit.Test;27import org.junit.Before;28import org.junit.Assert;29@RunWith(MockitoJUnitRunner.class)30public class 2 {31 private 3 mock3;32 private 4 mock4;33 public void setUp() {34 MockitoAnnotations.initMocks(this);35 }36 public void test() {37 Assert.assertNotNull(mock3);38 Assert.assertNotNull(mock4);39 }40}41import org.mockito.InjectMocks;42import org.mockito.Mock;43import org.mockito.MockitoAnnotations;44import org.mockito.junit.MockitoJUnitRunner;45import org.junit.runner.RunWith;46import org.junit.Test;47import org.junit.Before;48import org.junit.Assert;49@RunWith(MockitoJUnitRunner.class)50public class 3 {51 private 4 mock4;52 private 5 mock5;53 public void setUp() {54 MockitoAnnotations.initMocks(this);55 }56 public void test() {57 Assert.assertNotNull(mock4);58 Assert.assertNotNull(mock5);59 }60}61import org.mockito.InjectMocks;62import org.mockito.Mock;63import org.mockito.MockitoAnnotations;64import org.mockito.junit.MockitoJUnitRunner;65import org.junit.runner.RunWith;66import org.junit.Test;67import org.junit.Before;68import org.junit.Assert;69@RunWith(MockitoJUnitRunner.class)70public class 4 {

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1package org.mockitoinjectmocks;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.InjectMocks;5import org.mockito.Mock;6import org.mockito.MockitoAnnotations;7import org.mockito.runners.MockitoJUnitRunner;8import static org.mockito.Mockito.*;9@RunWith(MockitoJUnitRunner.class)10public class MockitoAnnotationsTest {11 private Dependency dependency;12 private SystemUnderTest systemUnderTest;13 public void test() {14 MockitoAnnotations.initMocks(this);15 when(dependency.retrieveAllStats()).thenReturn(new int[] {24, 15, 3});16 systemUnderTest.methodUsingAnArrayListConstructor();17 verify(dependency).retrieveAllStats();18 }19}20OK (1 test)21package org.mockitoinjectmocks;22import org.junit.Test;23import org.junit.runner.RunWith;24import org.mockito.InjectMocks;25import org.mockito.Mock;26import org.mockito.MockitoAnnotations;27import org.mockito.runners.MockitoJUnitRunner;28import static org.mockito.Mockito.*;29@RunWith(MockitoJUnitRunner.class)30public class MockitoAnnotationsTest {31 private Dependency dependency;32 private SystemUnderTest systemUnderTest;33 public void test() {34 MockitoAnnotations.initMocks(this);35 when(dependency.retrieveAllStats()).thenReturn(new int[] {24, 15, 3});36 systemUnderTest.methodUsingAnArrayListConstructor();37 verify(dependency).retrieveAllStats();38 }39}40OK (1 test)41package org.mockitoinjectmocks;42import org.junit.Test;43import org.junit.runner.RunWith;44import org.mockito.InjectMocks;45import org.mockito.Mock;46import org.mockito.MockitoAnnotations;47import org.mockito.runners.MockitoJUnitRunner;48import static org.mockito.Mockito.*;49@RunWith(MockitoJUnitRunner.class)50public class MockitoAnnotationsTest {51 private Dependency dependency;52 private SystemUnderTest systemUnderTest;53 public void test() {

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1import org.mockito.InjectMocks;2import org.mockito.MockitoAnnotations;3public class 1 {4 private static 1 1;5 public static void main(String[] args) {6 MockitoAnnotations.initMocks(1.class);7 }8}9 at 1.main(1.java:9)

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1import org.junit.Test;2import org.mockito.InjectMocks;3import org.mockito.MockitoAnnotations;4public class TestClass {5 private ClassToTest classToTest;6 public void test() {7 MockitoAnnotations.initMocks(this);8 }9}10import org.junit.Test;11import org.mockito.Mockito;12public class TestClass {13 public void test() {14 MockitoAnnotations.initMocks(this);15 }16}17import org.junit.Test;18import org.mockito.Mockito;19public class TestClass {20 public void test() {21 MockitoAnnotations.initMocks(this);22 }23}24import org.junit.Test;25import org.mockito.Mockito;26public class TestClass {27 public void test() {28 MockitoAnnotations.initMocks(this);29 }30}31import org.junit.Test;32import org.mockito.Mockito;33public class TestClass {34 public void test() {35 MockitoAnnotations.initMocks(this);36 }37}38import org.junit.Test;39import org.mockito.Mockito;40public class TestClass {41 public void test() {42 MockitoAnnotations.initMocks(this);43 }44}45import org.junit.Test;46import org.mockito.Mockito;47public class TestClass {48 public void test() {49 MockitoAnnotations.initMocks(this);50 }51}52import org.junit.Test;53import org.mockito.Mockito;54public class TestClass {55 public void test() {56 MockitoAnnotations.initMocks(this);57 }58}59import org.junit.Test;60import org.mockito.Mockito;61public class TestClass {62 public void test() {63 MockitoAnnotations.initMocks(this);64 }65}

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