How to use MockitoExtension class of org.mockito.junit.jupiter package

Best Mockito code snippet using org.mockito.junit.jupiter.MockitoExtension

Source:MockitoAnnotatedObjectsShouldBeInitialized.java Github

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...21import org.mockito.Spy;22import org.mockito.junit.MockitoJUnit;23import org.mockito.junit.MockitoJUnitRunner;24import org.mockito.junit.MockitoRule;25import org.mockito.junit.jupiter.MockitoExtension;26import org.mockito.junit.jupiter.MockitoSettings;27import org.mockito.quality.Strictness;28public class MockitoAnnotatedObjectsShouldBeInitialized {29 class MixedNonCompliant {30 @Mock // Noncompliant {{Initialize mocks before using them.}}31 private Bar bar;32 @Spy // Issue is only reported on the first annotation33 private Baz baz;34 @InjectMocks // Issue is only reported on the first annotation35 private Foo fooUnderTest;36 @Test37 void someTest() {38 // test something ...39 }40 }41 @RunWith(EmptyRunner.class)42 public class RunWithBadParameter {43 @Mock // Compliant FN is a runner that does not initialize anything44 private Bar bar;45 }46 @RunWith(Runner.class)47 public class RunWithAbstractRunner {48 @Mock // Compliant FN is a runner that but not a concrete one49 private Bar bar;50 }51 @Nullable52 public class IrrelevantAnnotationOnClass {53 @Mock // Noncompliant54 private Bar bar;55 }56 @RunWith(MockitoJUnitRunner.class)57 public class JUnit4AnnotatedTest {58 @Mock // Compliant59 private Bar bar;60 }61 @ExtendWith(EmptyExtension.class)62 public class ExtendWithEmptyParameter {63 @Mock // Compliant FN is an extension that does not initialize anything64 private Bar bar;65 }66 @ExtendWith(Extension.class)67 public class ExtendWithAbstractExtension {68 @Mock // Compliant FN use the base interface69 private Bar bar;70 }71 @ExtendWith(MockitoExtension.class)72 public class JUnit5AnnotatedTest {73 @Mock // Compliant74 private Bar bar;75 }76 public class UntaggedRule {77 public MockitoRule rule = MockitoJUnit.rule();78 @Mock // Noncompliant {{Initialize mocks before using them.}}79 private Bar bar;80 }81 public class UninitializedRule {82 @Rule83 public MockitoRule rule;84 @Mock // Noncompliant {{Initialize mocks before using them.}}85 private Bar bar;86 }87 public class NullInitializedRule {88 @Rule89 public MockitoRule rule = null;90 @Mock // Noncompliant {{Initialize mocks before using them.}}91 private Bar bar;92 }93 public class PoorlyInitializedRule {94 @Rule95 public MockitoRule rule = FakeRule.returnNull();96 @Mock // Noncompliant {{Initialize mocks before using them.}}97 private Bar bar;98 }99 public class FakeRuleInitialization {100 @Rule101 public MockitoRule rule = FakeRule.rule();102 @Mock // Noncompliant {{Initialize mocks before using them.}}103 private Bar bar;104 }105 public class FooTest2 {106 @Rule107 public MockitoRule rule = MockitoJUnit.rule();108 @Mock // Compliant109 private Bar bar;110 }111 public class InheritedRuleProviderInitialization {112 @Rule113 public MockitoRule rule = InheritedRuleProvider.rule();114 @Mock // Compliant115 private Bar bar;116 }117 public class MockitoRuleWithTheStrictness {118 @Rule119 public MockitoRule mockitoRule = MockitoJUnit.rule().strictness(Strictness.STRICT_STUBS);120 @Mock // Compliant121 private Bar bar;122 @Test123 public void someTest() {124 // ...125 }126 }127 public class MockitoRuleWrongStaticMethod {128 @Rule129 public MockitoRule rule = foo();130 @Mock // Noncompliant {{Initialize mocks before using them.}}131 private Bar bar;132 private MockitoRule foo() { return null; }133 }134 public class UntaggedSetup {135 @Mock // Noncompliant {{Initialize mocks before using them.}}136 private Bar bar;137 void setUp() {138 MockitoAnnotations.initMocks(this);139 }140 }141 public class SetupWithoutInitMocks {142 @Mock // Noncompliant {{Initialize mocks before using them.}}143 private Bar bar;144 @BeforeEach145 void setUp() {146 System.out.println("No call to initMocks");147 }148 }149 public class EmptySetup {150 @Mock // Noncompliant {{Initialize mocks before using them.}}151 private Bar bar;152 @BeforeEach153 void setUp() {154 }155 }156 public class SetupJunit4 {157 @Mock // compliant158 private Bar bar;159 @Before160 void setUp() {161 MockitoAnnotations.initMocks(this);162 }163 }164 public class SetupJUnit5 {165 @Mock // Compliant166 private Bar bar;167 @BeforeEach168 void setUp() {169 MockitoAnnotations.openMocks(this);170 }171 }172 public class SetupMix {173 @Mock // Compliant174 private Bar bar;175 @BeforeEach176 void setUp() {177 MockitoAnnotations.initMocks(this);178 }179 }180 class SetupInBaseClass {181 @BeforeEach182 void baseSetUp() {183 MockitoAnnotations.initMocks(this);184 }185 }186 class MockInChild extends SetupInBaseClass {187 @Mock // Compliant188 private Bar bar;189 }190 class NoSetup {191 }192 class MockInGrandChild extends NoSetup {193 @Mock // Compliant FN Super classes are not explored194 private Bar bar;195 }196 @ExtendWith(MockitoExtension.class)197 public class Nesting {198 @org.junit.jupiter.api.Nested199 public class Nested {200 @Mock201 private Bar bar;202 }203 public class NestedAsWell {204 @Mock // Noncompliant205 private Bar bar;206 @org.junit.jupiter.api.Nested207 public class NestedFurther {208 @Mock209 private Bar bar;210 }211 }212 }213 @RunWith(MockitoJUnitRunner.class)214 public class NestingWithWrongAnnotation {215 @Nested216 public class NestedButNotAnnotated {217 @Mock // Noncompliant218 private Bar bar;219 }220 public class NestedAsWellButAnnotated {221 @Nested222 public class NestedFurther {223 @Mock // Noncompliant224 private Bar bar;225 }226 }227 }228 public class NestingButNotAnnotated {229 public class NestedButNotAnnotated {230 @Mock // Noncompliant231 private Bar bar;232 }233 @ExtendWith(MockitoExtension.class)234 public class NestedAsWellButAnnotated {235 @org.junit.jupiter.api.Nested236 public class NestedFurther {237 @Mock238 private Bar bar;239 }240 }241 }242 private class Bar {243 }244 private class Baz {245 }246 private class Foo {247 }248 private static class EmptyRunner extends org.junit.runner.Runner {249 @Override250 public Description getDescription() {251 return null;252 }253 @Override254 public void run(RunNotifier runNotifier) {255 }256 }257 private static class EmptyExtension implements Extension {258 }259 private static class InheritedRuleProvider extends MockitoJUnit {260 }261 private static class FakeRule {262 static MockitoRule rule() {263 return null;264 }265 static MockitoRule returnNull() {266 return null;267 }268 }269 // Meta annotations270 @ExtendWith(MockitoExtension.class)271 public @interface SetupItTest272 {273 }274 @SetupItTest275 class SetUpViaMetaAnnotation {276 @Captor277 private ArgumentCaptor<String> someCaptor; // Compliant, ExtendWith setup via meta annotation278 }279 @MockitoSettings280 class SetUpViaMockitoSettings {281 @Captor private ArgumentCaptor<String> someCaptor; // Compliant, MockitoSettings is a meta annotation containing @ExtendWith({MockitoExtension.class})282 }283 @LoopB284 public @interface LoopA285 {286 }287 @LoopC288 public @interface LoopB289 {290 }291 @LoopA292 public @interface LoopC293 {294 }295 @LoopA296 class LoopInAnnotation {297 @Captor private ArgumentCaptor<String> someCaptor; // Noncompliant298 }299 // Meta annotations300 public @interface UnRelatedAnnotation301 {302 }303 @UnRelatedAnnotation304 @ExtendWith(MockitoExtension.class)305 class WithUnrelatedAnnotation1 {306 @Captor private ArgumentCaptor<String> someCaptor; // Compliant307 }308 @ExtendWith(MockitoExtension.class)309 @UnRelatedAnnotation310 class WithUnrelatedAnnotation2 {311 @Captor private ArgumentCaptor<String> someCaptor; // Compliant312 }313}...

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Source:ClientRepositoryTest.java Github

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...5import org.junit.runner.RunWith;6import org.mockito.Mock;7import org.mockito.Mockito;8import org.mockito.junit.MockitoJUnitRunner;9import org.mockito.junit.jupiter.MockitoExtension;10import java.util.Optional;11import static org.junit.jupiter.api.Assertions.*;12import org.junit.jupiter.api.Test;13import org.junit.jupiter.api.extension.ExtendWith;14import org.junit.runner.RunWith;15import org.mockito.Mock;16import org.mockito.Mockito;17import org.mockito.junit.MockitoJUnitRunner;18import org.mockito.junit.jupiter.MockitoExtension;19import java.util.ArrayList;20import java.util.List;21import java.util.Optional;22import static org.junit.jupiter.api.Assertions.*;23import static org.assertj.core.api.Assertions.assertThat;24@ExtendWith(MockitoExtension.class)25@RunWith(MockitoJUnitRunner.Silent.class)26class ClientRepositoryTest {27 @Mock28 private ClientRepository clientRepository;29 @Test30 void findByEmail() {31 Client client1 = new Client(1L, "test1@gmail.com","0659697087","test1",12,"F",true);32 Mockito.when(clientRepository.findByEmail("test1@gmail.com")).thenReturn(Optional.of(client1));33 assertThat(clientRepository.findByEmail("test1@gmail.com").get().getEmail()).isEqualTo("test1@gmail.com");34 }35 /* @Test36 void findByGender() {37 Client client1 = new Client(1L, "test1@gmail.com","0659697087","test1",12,"F",true);38 Client client2 = new Client(1L, "test1@gmail.com","0659697087","test1",12,"F",true);...

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Source:CategoryServiceImplTest.java Github

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...8import org.junit.jupiter.api.extension.ExtendWith;9import org.mockito.InjectMocks;10import org.mockito.Mock;11import org.mockito.Mockito;12import org.mockito.junit.jupiter.MockitoExtension;13import org.mockito.junit.jupiter.MockitoSettings;14import org.mockito.quality.Strictness;15@ExtendWith(MockitoExtension.class)16@MockitoSettings(strictness = Strictness.LENIENT)17class CategoryServiceImplTest {18 @Mock19 CategoryRepository categoryRepository;20 @InjectMocks21 CategoryServiceImpl categoryService;22 private static final Category category = new Category();23 @BeforeAll24 static void createCategory() {25 category.setCategoryName("History");26 category.setBooks(null);27 }28 @BeforeEach29 void setMockOutput(){...

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MockitoExtension

Using AI Code Generation

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1import static org.junit.jupiter.api.Assertions.assertEquals;2import static org.mockito.Mockito.when;3import org.junit.jupiter.api.Test;4import org.junit.jupiter.api.extension.ExtendWith;5import org.mockito.InjectMocks;6import org.mockito.Mock;7import org.mockito.junit.jupiter.MockitoExtension;8@ExtendWith(MockitoExtension.class)9public class MockitoExtensionTest {10 private Dependency dependency;11 private SystemUnderTest systemUnderTest;12 public void test() {13 when(dependency.retrieveAllStats()).thenReturn(new int[] { 1, 2, 3 });14 assertEquals(6, systemUnderTest.methodUsingAnArrayListConstructor());15 }16}17import static org.junit.jupiter.api.Assertions.assertEquals;18import static org.mockito.Mockito.when;19import org.junit.jupiter.api.Test;20import org.junit.jupiter.api.extension.ExtendWith;21import org.mockito.InjectMocks;22import org.mockito.Mock;23import org.mockito.junit.jupiter.MockitoExtension;24@ExtendWith(MockitoExtension.class)25public class MockitoExtensionTest {26 private Dependency dependency;27 private SystemUnderTest systemUnderTest;28 public void test() {29 when(dependency.retrieveAllStats()).thenReturn(new int[] { 1, 2, 3 });30 assertEquals(6, systemUnderTest.methodUsingAnArrayListConstructor());31 }32}

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MockitoExtension

Using AI Code Generation

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1import org.junit.jupiter.api.Test;2import org.junit.jupiter.api.extension.ExtendWith;3import org.mockito.InjectMocks;4import org.mockito.Mock;5import org.mockito.junit.jupiter.MockitoExtension;6import static org.junit.jupiter.api.Assertions.assertEquals;7import static org.mockito.Mockito.when;8@ExtendWith(MockitoExtension.class)9public class MockitoExtensionTest {10 private Collaborator collaborator;11 private ClassUnderTest classUnderTest;12 public void test() {13 when(collaborator.doSomething()).thenReturn("hello world");14 assertEquals("hello world", classUnderTest.doSomething());15 }16}

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MockitoExtension

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1import static org.junit.jupiter.api.Assertions.*;2import static org.mockito.Mockito.*;3import org.junit.jupiter.api.Test;4import org.junit.jupiter.api.extension.ExtendWith;5import org.mockito.Mock;6import org.mockito.junit.jupiter.MockitoExtension;7@ExtendWith(MockitoExtension.class)8class MockitoExtensionTest {9 private MyService myService;10 public void testMock() {11 when(myService.get()).thenReturn("Hello");12 assertEquals("Hello", myService.get());13 }14}15import static org.junit.jupiter.api.Assertions.*;16import static org.mockito.Mockito.*;17import org.junit.jupiter.api.Test;18import org.mockito.Mock;19class MockitoAnnotationTest {20 private MyService myService;21 public void testMock() {22 when(myService.get()).thenReturn("Hello");23 assertEquals("Hello", myService.get());24 }25}26import static org.junit.jupiter.api.Assertions.*;27import static org.mockito.Mockito.*;28import org.junit.jupiter.api.Test;29import org.mockito.Mock;30import org.mockito.MockitoAnnotations;31class MockitoInitTest {32 private MyService myService;33 public MockitoInitTest() {34 MockitoAnnotations.initMocks(this);35 }36 public void testMock() {37 when(myService.get()).thenReturn("Hello");38 assertEquals("Hello", myService.get());39 }40}41import static org.junit.jupiter.api.Assertions.*;42import static org.mockito.Mockito.*;43import org.junit.jupiter.api.Test;44import org.junit.runner.RunWith;45import org.mockito.Mock;46import org.mockito.junit.MockitoJUnitRunner;47@RunWith(MockitoJUnitRunner.class)48class MockitoRunWithTest {49 private MyService myService;50 public void testMock() {51 when(myService.get()).thenReturn("Hello");52 assertEquals("Hello", myService.get());53 }54}55import static org.junit.jupiter.api.Assertions.*;56import static org.mockito.Mockito.*;57import org.junit.jupiter.api.Test;58import org.junit.Rule;59import org.mockito.Mock;60import org.mockito.junit.MockitoJUnit;61import org.mockito.junit.MockitoRule;

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MockitoExtension

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1import org.junit.jupiter.api.Test;2import org.junit.jupiter.api.extension.ExtendWith;3import org.mockito.Mock;4import org.mockito.junit.jupiter.MockitoExtension;5import static org.junit.jupiter.api.Assertions.assertEquals;6import static org.mockito.Mockito.when;7@ExtendWith(MockitoExtension.class)8public class MockitoExtensionTest {9 private Person person;10 public void testMock() {11 when(person.getName()).thenReturn("John");12 assertEquals("John", person.getName());13 }14}15│ └─ testMock() ✔16public class Person {17 private String name;18 public String getName() {19 return name;20 }21}

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MockitoExtension

Using AI Code Generation

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1import org.junit.jupiter.api.Test;2import org.junit.jupiter.api.extension.ExtendWith;3import org.mockito.Mock;4import org.mockito.junit.jupiter.MockitoExtension;5import static org.junit.jupiter.api.Assertions.assertEquals;6import static org.mockito.Mockito.when;7@ExtendWith(MockitoExtension.class)8public class MockitoExtensionTest {9 private MathApplication mathApplication;10 public void testAdd() {11 when(mathApplication.add(10.0,20.0)).thenReturn(30.0);12 assertEquals(mathApplication.add(10.0, 20.0),30.0,0);13 }14}15│ │ └─ testAdd() ✔16│ └─ testAdd() ✔17 └─ testAdd() ✔

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MockitoExtension

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1import org.junit.jupiter.api.Test;2import org.junit.jupiter.api.extension.ExtendWith;3import org.mockito.Mock;4import org.mockito.junit.jupiter.MockitoExtension;5import java.util.List;6import static org.junit.jupiter.api.Assertions.assertEquals;7import static org.mockito.Mockito.when;8@ExtendWith(MockitoExtension.class)9public class MockitoExtensionTest {10 List<String> mockList;11 public void testMock() {12 when(mockList.size()).thenReturn(10);13 assertEquals(10, mockList.size());14 }15}16C:\Users\javatpoint>javac -cp .;junit-4.12.jar;hamcrest-core-1.3.jar;mockito-core-1.10.19.jar 1.java17C:\Users\javatpoint>java -cp .;junit-4.12.jar;hamcrest-core-1.3.jar;mockito-core-1.10.19.jar org.junit.runner.JUnitCore MockitoExtensionTest18OK (1 test)

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MockitoExtension

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1import org.junit.jupiter.api.Test;2import org.junit.jupiter.api.extension.ExtendWith;3import org.mockito.Mock;4import org.mockito.junit.jupiter.MockitoExtension;5import static org.mockito.Mockito.when;6@ExtendWith(MockitoExtension.class)7public class MockitoExtensionTest {8 private MathApplication mathApplication;9 public void testAdd() {10 when(mathApplication.add(10,20)).thenReturn(30);11 when(mathApplication.add(20,20)).thenReturn(40);12 when(mathApplication.add(30,20)).thenReturn(50);13 System.out.println("Addition of 10 and 20 is " + mathApplication.add(10,20));14 System.out.println("Addition of 20 and 20 is " + mathApplication.add(20,20));15 System.out.println("Addition of 30 and 20 is " + mathApplication.add(30,20));16 }17}

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MockitoExtension

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1import org.mockito.junit.jupiter.MockitoExtension;2import org.junit.jupiter.api.extension.ExtendWith;3import org.junit.jupiter.api.Test;4import org.junit.jupiter.api.BeforeEach;5import static org.junit.jupiter.api.Assertions.assertEquals;6import static org.mockito.Mockito.*;7@ExtendWith(MockitoExtension.class)8public class TestJunit5 {9 private List<String> mockList;10 public void testMockList() {11 mockList.add("one");12 verify(mockList).add("one");13 assertEquals(0, mockList.size());14 when(mockList.size()).thenReturn(100);15 assertEquals(100, mockList.size());16 }17}18TestJunit5 > testMockList() STANDARD_OUT

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MockitoExtension

Using AI Code Generation

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1import org.mockito.junit.jupiter.MockitoExtension;2import org.junit.jupiter.api.extension.ExtendWith;3import org.junit.jupiter.api.Test;4import static org.junit.jupiter.api.Assertions.assertEquals;5import static org.mockito.Mockito.mock;6import static org.mockito.Mockito.when;7import static org.mockito.Mockito.verify;8import static org.mockito.Mockito.times;9import static org.mockito.Mockito.anyInt;10import static org.mockito.Mockito.anyString;11import static org.mockito.Mockito.doThrow;12import static org.mockito.Mockito.doNothing;13import static org.mockito.Mockito.doAnswer;14import static org.mockito.Mockito.spy;15import static org.mockito.Mockito.never;16import static org.mockito.Mockito.atLeast;17import static org.mockito.Mockito.atLeastOnce;18import static org.mockito.Mockito.atMost;19import static org.mockito.Mockito.timeout;20import static org.mockito.Mockito.timeout;21import static org.mockito.Mockito.only;22import static org.mockito.Mockito.inOrder;23import static org.mockito.Mockito.verifyNoMoreInteractions;24import static org.mockito.Mockito.verifyNoInteractions;25import static org.mockito.Mockito.reset;26import static org.mockito.Mockito.spy;27import static org.mockito.Mockito.when;28import static org.mockito.Mockito.doReturn;29import static org.mockito.Mockito.doThrow;30import static org.mockito.Mockito.doAnswer;31import static org.mockito.Mockito.doNothing;32import static org.mockito.Mockito.verify;33import static org.mockito.Mockito.mock;34import static org.mockito.Mockito.spy;35import static org.mockito.Mockito.verify;36import static org.mockito.Mockito.doReturn;37import static org.mockito.Mockito.doThrow;38import static org.mockito.Mockito.doAnswer;39import static org.mockito.Mockito.doNothing;40import static org.mockito.Mockito.mock;41import static org.mockito.Mockito.spy;42import static org.mockito.Mockito.verify;43import static org.mockito.Mockito.doReturn;44import static org.mockito.Mockito.doThrow;45import static org.mockito.Mockito.doAnswer;46import static org.mockito.Mockito.doNothing;47import static org.mockito.Mockito.mock;48import static org.mockito.Mockito.spy;49import static org.mockito.Mockito.verify;50import static org.mockito.Mockito.doReturn;51import static org.mockito.Mockito.doThrow;52import static org.mockito.Mockito.doAnswer;53import static org.mockito.Mockito.doNothing;54import static org.mockito.Mockito.mock;55import static org.mockito.Mockito.spy;56import static org.mockito.Mockito.verify;57import static org.mockito.Mockito.doReturn;58import static org.mockito.Mockito.doThrow;59import static org.mockito.Mockito.doAnswer;60import static org.mockito.Mockito.doNothing;61import static org.mockito.Mockito.mock;62import static org.mockito.Mockito.spy;63import static org.mockito.Mockito.verify;64import static org.mockito.Mockito.doReturn;65import

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