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How to use exampleTest method of org.mockito.junit.MockitoJUnitRunner class

Best Mockito code snippet using org.mockito.junit.MockitoJUnitRunner.exampleTest

Source:MockitoJUnitRunner.java

1/*2 * Copyright (c) 2007 Mockito contributors3 * This program is made available under the terms of the MIT License.4 */5package org.mockito.junit;6import org.junit.runner.Description;7import org.junit.runner.Runner;8import org.junit.runner.manipulation.Filter;9import org.junit.runner.manipulation.Filterable;10import org.junit.runner.manipulation.NoTestsRemainException;11import org.junit.runner.notification.RunNotifier;12import org.mockito.Mock;13import org.mockito.Mockito;14import org.mockito.MockitoAnnotations;15import org.mockito.MockitoSession;16import org.mockito.exceptions.misusing.UnnecessaryStubbingException;17import org.mockito.internal.runners.InternalRunner;18import org.mockito.internal.runners.RunnerFactory;19import org.mockito.internal.runners.StrictRunner;20import org.mockito.quality.MockitoHint;21import org.mockito.quality.Strictness;22import java.lang.reflect.InvocationTargetException;23/**24 * Mockito JUnit Runner keeps tests clean and improves debugging experience.25 * Make sure to try out {@link MockitoJUnitRunner.StrictStubs} which automatically26 * detects <strong>stubbing argument mismatches</strong> and is planned to be the default in Mockito v3.27 * Runner is compatible with JUnit 4.4 and higher and adds following behavior:28 * <ul>29 *   <li>30 *       (new since Mockito 2.1.0) Detects unused stubs in the test code.31 *       See {@link UnnecessaryStubbingException}.32 *       Similar to JUnit rules, the runner also reports stubbing argument mismatches as console warnings33 *       (see {@link MockitoHint}).34 *       To opt-out from this feature, use {@code}&#064;RunWith(MockitoJUnitRunner.Silent.class){@code}35 *   <li>36 *      Initializes mocks annotated with {@link Mock},37 *      so that explicit usage of {@link MockitoAnnotations#initMocks(Object)} is not necessary.38 *      Mocks are initialized before each test method.39 *   <li>40 *      Validates framework usage after each test method. See javadoc for {@link Mockito#validateMockitoUsage()}.41 *   <li>42 *      It is highly recommended to use {@link MockitoJUnitRunner.StrictStubs} variant of the runner.43 *      It drives cleaner tests and improves debugging experience.44 *      The only reason this feature is not turned on by default45 *      is because it would have been an incompatible change46 *      and Mockito strictly follows <a href="http://semver.org">semantic versioning</a>.47 * </ul>48 *49 * Runner is completely optional - there are other ways you can get &#064;Mock working, for example by writing a base class.50 * Explicitly validating framework usage is also optional because it is triggered automatically by Mockito every time you use the framework.51 * See javadoc for {@link Mockito#validateMockitoUsage()}.52 * <p>53 * Read more about &#064;Mock annotation in javadoc for {@link MockitoAnnotations}54 * <pre class="code"><code class="java">55 * <b>&#064;RunWith(MockitoJUnitRunner.StrictStubs.class)</b>56 * public class ExampleTest {57 *58 *     &#064;Mock59 *     private List list;60 *61 *     &#064;Test62 *     public void shouldDoSomething() {63 *         list.add(100);64 *     }65 * }66 * </code></pre>67 *68 * If you would like to take advantage of Mockito JUnit runner features69 * but you cannot use the runner because, for example, you use TestNG, there is a solution!70 * {@link MockitoSession} API is intended to offer cleaner tests and improved debuggability71 * to users that cannot use Mockito's built-in JUnit support (runner or the rule).72 */73public class MockitoJUnitRunner extends Runner implements Filterable {74    /**75     * This Mockito JUnit Runner implementation *ignores*76     * stubbing argument mismatches ({@link MockitoJUnitRunner.StrictStubs})77     * and *does not detect* unused stubbings.78     * The runner remains 'silent' even if incorrect stubbing is present.79     * It is an equivalent of {@link Strictness#LENIENT}.80     * This was the behavior of Mockito JUnit runner in versions 1.x.81     * Using this implementation of the runner is not recommended.82     * Engineers should care for removing unused stubbings because they are dead code,83     * they add unnecessary details, potentially making the test code harder to comprehend.84     * If you have good reasons to use the silent runner, let us know at the mailing list85     * or raise an issue in our issue tracker.86     * The purpose of silent implementation is to satisfy edge/unanticipated use cases,87     * and to offer users an opt-out.88     * Mockito framework is opinionated to drive clean tests but it is not dogmatic.89     * <p>90     * See also {@link UnnecessaryStubbingException}.91     * <p>92     * Usage:93     * <pre class="code"><code class="java">94     * <b>&#064;RunWith(MockitoJUnitRunner.Silent.class)</b>95     * public class ExampleTest {96     *   // ...97     * }98     * </code></pre>99     *100     * @since 2.1.0101     */102    public static class Silent extends MockitoJUnitRunner {103        public Silent(Class<?> klass) throws InvocationTargetException {104            super(new RunnerFactory().create(klass));105        }106    }107    /**108     * Detects unused stubs and reports them as failures. Default behavior in Mockito 2.x.109     * To improve productivity and quality of tests please consider newer API, the {@link StrictStubs}.110     * <p>111     * For more information on detecting unusued stubs, see {@link UnnecessaryStubbingException}.112     * For more information on stubbing argument mismatch warnings see {@link MockitoHint}.113     *114     * @since 2.1.0115     */116    public static class Strict extends MockitoJUnitRunner {117        public Strict(Class<?> klass) throws InvocationTargetException {118            super(new StrictRunner(new RunnerFactory().createStrict(klass), klass));119        }120    }121    /**122     * Improves debugging tests, helps keeping the tests clean.123     * Highly recommended to improve productivity and quality of tests.124     * Planned default behavior for Mockito v3.125     * Adds behavior equivalent to {@link Strictness#STRICT_STUBS}.126     * <p>127     * Usage:128     * <pre class="code"><code class="java">129     * <b>&#064;RunWith(MockitoJUnitRunner.StrictStubs.class)</b>130     * public class ExampleTest {131     *   // ...132     * }133     * </code></pre>134     *135     * @since 2.5.1136     */137    public static class StrictStubs extends MockitoJUnitRunner {138        public StrictStubs(Class<?> klass) throws InvocationTargetException {139            super(new StrictRunner(new RunnerFactory().createStrictStubs(klass), klass));140        }141    }142    private final InternalRunner runner;143    public MockitoJUnitRunner(Class<?> klass) throws InvocationTargetException {144        //by default, StrictRunner is used. We can change that potentially based on feedback from users145        this(new StrictRunner(new RunnerFactory().createStrict(klass), klass));146    }147    MockitoJUnitRunner(InternalRunner runner) throws InvocationTargetException {148        this.runner = runner;149    }150    @Override151    public void run(final RunNotifier notifier) {152        runner.run(notifier);153    }154    @Override155    public Description getDescription() {156        return runner.getDescription();157    }158    public void filter(Filter filter) throws NoTestsRemainException {159        //filter is required because without it UnrootedTests show up in Eclipse160        runner.filter(filter);161    }162}...

exampleTest

Using AI Code Generation

1package com.baeldung.mockito.junitrunner;2import static org.junit.Assert.assertEquals;3import static org.mockito.Mockito.when;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.mockito.Mock;7import org.mockito.junit.MockitoJUnitRunner;8@RunWith(MockitoJUnitRunner.class)9public class MockitoJUnitRunnerTest {10    private Person person;11    public void testMock() {12        when(person.getName()).thenReturn("John");13        assertEquals("John", person.getName());14    }15}16MockitoJUnitRunnerTest > testMock() PASSED17@RunWith(MockitoJUnitRunner.class)18public class MockitoJUnitRunnerTest {19}20@RunWith(CustomRunner.class)21public class CustomRunnerTest {22}

exampleTest

Using AI Code Generation

1@RunWith(MockitoJUnitRunner.class)2public class MockitoJUnitRunnerTest {3    private List<String> mockList;4    public void testMockCreation() {5        mockList.add("one");6        verify(mockList).add("one");7        assertEquals(0, mockList.size());8        when(mockList.size()).thenReturn(100);9        assertEquals(100, mockList.size());10    }11}12@RunWith(MockitoJUnitRunner.class)13public class MockitoJUnitRunnerTest {14    private List<String> mockList;15    public MockitoRule mockitoRule = MockitoJUnit.rule();16    public void testMockCreation() {17        mockList.add("one");18        verify(mockList).add("one");19        assertEquals(0, mockList.size());20        when(mockList.size()).thenReturn(100);21        assertEquals(100, mockList.size());22    }23}24JVM name           : Java HotSpot(TM) 64-Bit Server VM25JVM name           : Java HotSpot(TM) 64-Bit Server VM

exampleTest

Using AI Code Generation

1@RunWith(MockitoJUnitRunner.class)2public class MockitoJUnitRunnerTest {3    private List mockList;4    public void testMockCreation() {5        mockList.add("one");6        verify(mockList).add("one");7        assertEquals(0, mockList.size());8        assertTrue(mockList.isEmpty());9    }10}11package com.journaldev.mockito;12import java.util.List;13import org.junit.Test;14import org.junit.runner.RunWith;15import org.mockito.Mock;16import org.mockito.junit.MockitoJUnitRunner;17import static org.junit.Assert.assertEquals;18import static org.mockito.Mockito.when;19@RunWith(MockitoJUnitRunner.class)20public class MockitoJUnitRunnerTest {21    private List mockList;22    public void testMockCreation() {23        when(mockList.size()).thenReturn(100);24        assertEquals(100, mockList.size());25    }26}27package com.journaldev.mockito;28import java.util.List;29import org.junit.Test;30import org.junit.runner.RunWith;31import org.mockito.Mock;32import org.mockito.junit.MockitoJUnitRunner;33import static org.junit.Assert.assertEquals;34import static org.mockito.Mockito.when;35@RunWith(MockitoJUnitRunner.class)36public class MockitoJUnitRunnerTest {37    private List mockList;38    public void testMockCreation() {39        when(mockList.size()).thenReturn(100);40        assertEquals(100, mockList.size());41    }42}43package com.journaldev.mockito;44import java.util.List;45import org.junit.Test;46import org.junit.runner.RunWith;47import org.mockito.Mock;48import org.mockito.junit.MockitoJUnitRunner;49import static org.junit.Assert.assertEquals;50import static org.mockito.Mockito.when;51@RunWith(MockitoJUnitRunner.class)52public class MockitoJUnitRunnerTest {53    private List mockList;54    public void testMockCreation() {55        when(mockList.size()).thenReturn(100);56        assertEquals(100, mockList.size());57    }58}59package com.journaldev.mockito;60import java.util.List;61import org.junit.Test;62import org.junit.runner.RunWith;63import org.mockito.Mock;64import org.mockito.junit.MockitoJUnitRunner;65import static org.junit.Assert.assertEquals;66import static org.mockito.Mockito

exampleTest

Using AI Code Generation

1public class ExampleTest {2    public MockitoRule mockitoRule = MockitoJUnit.rule();3    private List mockedList;4    public void test() {5        when(mockedList.get(0)).thenReturn("first");6        assertEquals("first", mockedList.get(0));7        verify(mockedList).get(0);8    }9}10public class ExampleTest {11    public MockitoRule mockitoRule = MockitoJUnit.rule();12    private List mockedList;13    public void test() {14        when(mockedList.get(0)).thenReturn("first");15        assertEquals("first", mockedList.get(0));16        verify(mockedList).get(0);17    }18}19public class ExampleTest {20    public MockitoRule mockitoRule = MockitoJUnit.rule();21    private List mockedList;22    public void test() {23        when(mockedList.get(0)).thenReturn("first");24        assertEquals("first", mockedList.get(0));25        verify(mockedList).get(0);26    }27}28public class ExampleTest {29    public MockitoRule mockitoRule = MockitoJUnit.rule();30    private List mockedList;31    public void test() {32        when(mockedList.get(0)).thenReturn("first");33        assertEquals("first", mockedList.get(0));34        verify(mockedList).get(0);35    }36}37public class ExampleTest {38    public MockitoRule mockitoRule = MockitoJUnit.rule();39    private List mockedList;40    public void test() {41        when(mockedList.get(0)).thenReturn("first");42        assertEquals("first", mockedList.get(0));43        verify(mockedList).get(0);44    }45}46public class ExampleTest {47    public MockitoRule mockitoRule = MockitoJUnit.rule();48    private List mockedList;

exampleTest

Using AI Code Generation

1package com.javatpoint;2import static org.junit.Assert.assertEquals;3import org.junit.Test;4import org.junit.runner.RunWith;5import org.mockito.Mock;6import org.mockito.junit.MockitoJUnitRunner;7@RunWith(MockitoJUnitRunner.class)8public class ExampleTest {9   private Dependency dependency;10   public void test() {11      Example example = new Example(dependency);12      assertEquals(1, example.method());13   }14}15package com.javatpoint;16public class Example {17   private final Dependency dependency;18   public Example(Dependency dependency) {19      this.dependency = dependency;20   }21   public int method() {22      return dependency.method();23   }24}25package com.javatpoint;26public class Dependency {27   public int method() {28      return 1;29   }30}

exampleTest

Using AI Code Generation

1public class MockitoJUnitRunnerTest {2    private List mockedList;3    public void test() {4        MockitoJUnitRunner exampleTest = new MockitoJUnitRunner();5        exampleTest.test();6    }7}8	at org.mockito.internal.runners.util.RunnerProviderImpl.createRunner(RunnerProviderImpl.java:18)9	at org.mockito.internal.runners.util.RunnerProviderImpl.getRunner(RunnerProviderImpl.java:12)10	at org.mockito.internal.runners.DefaultInternalRunnerFactory.create(DefaultInternalRunnerFactory.java:16)11	at org.mockito.internal.runners.DefaultRunnerFactory.create(DefaultRunnerFactory.java:14)12	at org.mockito.internal.runners.StrictRunnerFactory.create(StrictRunnerFactory.java:13)13	at org.mockito.runners.MockitoJUnitRunner.<init>(MockitoJUnitRunner.java:25)14	at org.mockito.runners.MockitoJUnitRunnerTest.test(MockitoJUnitRunnerTest.java:15)15	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)16	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)17	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)18	at java.lang.reflect.Method.invoke(Method.java:498)19	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)20	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)21	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)22	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)23	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)24	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)25	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)26	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)27	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)28	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)29	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)30	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)31	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)32	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(J

exampleTest

Using AI Code Generation

1@RunWith(MockitoJUnitRunner.class)2public class MockitoJUnitRunnerTest {3    private List mockList;4    public void testMockitoJUnitRunner() {5        mockList.add("one");6        Mockito.verify(mockList).add("one");7    }8}9Missing method call for verify(mock) here:10-> at com.journaldev.mockito.MockitoJUnitRunnerTest.testMockitoJUnitRunner(MockitoJUnitRunnerTest.java:14)

exampleTest

Using AI Code Generation

1@RunWith(MockitoJUnitRunner.class)2public class MockitoJUnitRunnerExampleTest {3     private List mockList;4     public void testMockCreation() {5        mockList.add("one");6        verify(mockList).add("one");7        assertEquals(0, mockList.size());8        assertTrue(mockList.isEmpty());9     }10}11@RunWith(MockitoJUnitRunner.class)12public class MockitoJUnitRunnerExampleTest {13     private List mockList;14     public void testMockCreation() {15        mockList.add("one");16        verify(mockList).add("one");17        assertEquals(0, mockList.size());18        assertTrue(mockList.isEmpty());19     }20}21package com.journaldev.mockitotutorial;22import java.util.List;23import org.junit.Test;24import org.junit.runner.RunWith;25import org.mockito.Mock;26import org.mockito.junit.MockitoJUnitRunner;27import static org.junit.Assert.assertEquals;28import static org.junit.Assert.assertTrue;29import static org.mockito.Mockito.verify;30@RunWith(MockitoJUnitRunner.class)31public class MockitoJUnitRunnerExampleTest {32     private List mockList;33     public void testMockCreation() {34        mockList.add("one");35        verify(mockList).add("one");36        assertEquals(0, mockList.size());37        assertTrue(mockList.isEmpty());38     }39}40JVM name           : Java HotSpot(TM) 64-Bit Server VM41at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:28)42at org.mockito.internal.MockitoCore.mock(MockitoCore.java:59)43at org.mockito.Mockito.mock(Mockito.java:1852)

exampleTest

Using AI Code Generation

1@RunWith(MockitoJUnitRunner.class)2public class MockitoJUnitRunnerExampleTest {3    private List<String> mockedList;4    public void exampleTest() {5        mockedList.add("one");6        verify(mockedList).add("one");7        assertEquals(0, mockedList.size());8    }9}10@RunWith(MockitoJUnitRunner.class)11public class MockitoJUnitRunnerExampleTest {12    private List<String> mockedList;13    public void exampleTest() {14        mockedList.add("one");15        verify(mockedList).add("one");16        assertEquals(0, mockedList.size());17    }18}19@RunWith(MockitoJUnitRunner.class)20public class MockitoJUnitRunnerExampleTest {21    private List<String> mockedList;22    public void exampleTest() {23        mockedList.add("one");24        verify(mockedList).add("one");25        assertEquals(0, mockedList.size());26    }27}28@RunWith(MockitoJUnitRunner.class)29public class MockitoJUnitRunnerExampleTest {30    private List<String> mockedList;31    public void exampleTest() {32        mockedList.add("one");33        verify(mockedList).add("one");34        assertEquals(0, mockedList.size());35    }36}

exampleTest

Using AI Code Generation

1@RunWith(MockitoJUnitRunner.class)2public class ExampleTest {3    private MyDependency dependency1;4    private MyDependency dependency2;5    private MyClass myClass;6    public void test() {7        when(dependency1.greet()).thenReturn("Hello");8        when(dependency2.greet()).thenReturn("World");9        String result = myClass.greet();10        assertThat(result).isEqualTo("Hello World");11    }12}13@RunWith(MockitoJUnitRunner.class)14public class ExampleTest {15    private MyDependency dependency1;16    private MyDependency dependency2;17    private MyClass myClass;18    public void test() {19        when(dependency1.greet()).thenReturn("Hello");20        when(dependency2.greet()).thenReturn("World");21        String result = myClass.greet();22        assertThat(result).isEqualTo("Hello World");23    }24}25@RunWith(MockitoJUnitRunner.class)

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