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How to use MockitoJUnitRunner method of org.mockito.runners.MockitoJUnitRunner class

Best Mockito code snippet using org.mockito.runners.MockitoJUnitRunner.MockitoJUnitRunner

Source:MockitoJUnitRunner.java

...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    }...

MockitoJUnitRunner

Using AI Code Generation

1import static org.junit.Assert.assertEquals;2import static org.mockito.Mockito.mock;3import static org.mockito.Mockito.when;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.mockito.runners.MockitoJUnitRunner;7@RunWith(MockitoJUnitRunner.class)8public class MockitoJUnitRunnerTest {9    public void test() {10        MyClass test = mock(MyClass.class);11        when(test.getUniqueId()).thenReturn(43);12        assertEquals(test.getUniqueId(), 43);13    }14}15import static org.junit.Assert.assertEquals;16import static org.mockito.Mockito.mock;17import static org.mockito.Mockito.when;18import org.junit.Test;19import org.junit.runner.RunWith;20import org.mockito.runners.MockitoJUnitRunner;21@RunWith(MockitoJUnitRunner.class)22public class MockitoJUnitRunnerTest {23    public void test() {24        MyClass test = mock(MyClass.class);25        when(test.getUniqueId()).thenReturn(43);26        assertEquals(test.getUniqueId(), 43);27    }28}29import static org.junit.Assert.assertEquals;30import static org.mockito.Mockito.mock;31import static org.mockito.Mockito.when;32import org.junit.Test;33import org.junit.runner.RunWith;34import org.mockito.junit.MockitoJUnitRunner;35@RunWith(MockitoJUnitRunner.class)36public class MockitoJUnitRunnerTest {37    public void test() {38        MyClass test = mock(MyClass.class);39        when(test.getUniqueId()).thenReturn(43);40        assertEquals(test.getUniqueId(), 43);41    }42}43import static org.junit.Assert.assertEquals;44import static org.mockito.Mockito.mock;45import static org.mockito.Mockito.when;46import org.junit.Test;47import org.junit.runner.RunWith;48import org.mockito.runners.MockitoJUnitRunner;49@RunWith(MockitoJUnitRunner.class)50public class MockitoJUnitRunnerTest {51    public void test() {52        MyClass test = mock(MyClass.class);53        when(test.getUniqueId()).thenReturn(43);54        assertEquals(test.getUniqueId(), 43);55    }56}57import static org.junit.Assert.assertEquals;58import static org.mockito.Mockito.mock;59import static org.mockito.Mockito.when;60import org.junit.Test;61import org.junit.runner.RunWith;62import org.mockito.junit.MockitoJUnitRunner;63@RunWith(MockitoJUnitRunner.class)

MockitoJUnitRunner

Using AI Code Generation

1import org.junit.runner.RunWith;2import org.mockito.runners.MockitoJUnitRunner;3@RunWith(MockitoJUnitRunner.class)4public class MockitoJUnitRunnerExample {5}6import org.junit.runner.RunWith;7import org.mockito.junit.MockitoJUnitRunner;8@RunWith(MockitoJUnitRunner.class)9public class MockitoJUnitRunnerExample {10}11import org.junit.runner.RunWith;12import org.mockito.runners.MockitoJUnitRunner;13@RunWith(MockitoJUnitRunner.class)14public class MockitoJUnitRunnerExample {15}16import org.junit.runner.RunWith;17import org.mockito.junit.MockitoJUnitRunner;18@RunWith(MockitoJUnitRunner.class)19public class MockitoJUnitRunnerExample {20}21import org.junit.runner.RunWith;22import org.mockito.runners.MockitoJUnitRunner;23@RunWith(MockitoJUnitRunner.class)24public class MockitoJUnitRunnerExample {25}26import org.junit.runner.RunWith;27import org.mockito.junit.MockitoJUnitRunner;28@RunWith(MockitoJUnitRunner.class)29public class MockitoJUnitRunnerExample {30}31import org.junit.runner.RunWith;32import org.mockito.runners.MockitoJUnitRunner;33@RunWith(MockitoJUnitRunner.class)34public class MockitoJUnitRunnerExample {35}36import org.junit.runner.RunWith;37import org.mockito.junit.MockitoJUnitRunner;38@RunWith(MockitoJUnitRunner.class)39public class MockitoJUnitRunnerExample {40}41import org.junit.runner.RunWith;42import org.mockito.runners.MockitoJUnitRunner;43@RunWith(MockitoJUnitRunner.class)44public class MockitoJUnitRunnerExample {45}46import org.junit.runner.RunWith;47import org.mockito.junit.MockitoJUnitRunner;48@RunWith(MockitoJUnitRunner.class)49public class MockitoJUnitRunnerExample {50}51import org.junit.runner.RunWith;52import org.mockito.runners.MockitoJUnitRunner;53@RunWith(MockitoJUnitRunner.class)54public class MockitoJUnitRunnerExample {55}

MockitoJUnitRunner

Using AI Code Generation

1import org.junit.runner.RunWith;2import org.mockito.runners.MockitoJUnitRunner;3@RunWith(MockitoJUnitRunner.class)4public class TestClass {5}6import org.junit.runner.RunWith;7import org.mockito.junit.MockitoJUnitRunner;8@RunWith(MockitoJUnitRunner.class)9public class TestClass {10}11import org.junit.runner.RunWith;12import org.mockito.junit.MockitoJUnitRunner;13@RunWith(MockitoJUnitRunner.class)14public class TestClass {15}16import org.junit.runner.RunWith;17import org.mockito.runners.MockitoJUnitRunner;18@RunWith(MockitoJUnitRunner.class)19public class TestClass {20}21import org.junit.runner.RunWith;22import org.mockito.junit.MockitoJUnitRunner;23@RunWith(MockitoJUnitRunner.class)24public class TestClass {25}26import org.junit.runner.RunWith;27import org.mockito.junit.MockitoJUnitRunner;28@RunWith(MockitoJUnitRunner.class)29public class TestClass {30}31import org.junit.runner.RunWith;32import org.mockito.junit.MockitoJUnitRunner;33@RunWith(MockitoJUnitRunner.class)34public class TestClass {35}36import org.junit.runner.RunWith;37import org.mockito.junit.MockitoJUnitRunner;38@RunWith(MockitoJUnitRunner.class)39public class TestClass {40}41import org.junit.runner.RunWith;42import org.mockito.junit.MockitoJUnitRunner;43@RunWith(MockitoJUnitRunner.class)44public class TestClass {45}46import org.junit.runner.RunWith;47import org.mockito.junit.MockitoJUnitRunner;48@RunWith(MockitoJUnitRunner.class)49public class TestClass {50}51import org.junit.runner.RunWith;52import org.mockito.junit.MockitoJUnitRunner;53@RunWith(MockitoJUnitRunner.class)54public class TestClass {55}56import org.junit.runner.RunWith;57import org.mockito.junit.MockitoJUnitRunner;

MockitoJUnitRunner

Using AI Code Generation

1import org.mockito.runners.MockitoJUnitRunner;2import org.junit.runner.RunWith;3@RunWith(MockitoJUnitRunner.class)4public class MockitoJUnitRunnerExample {5}6import org.mockito.junit.MockitoJUnitRunner;7import org.junit.runner.RunWith;8@RunWith(MockitoJUnitRunner.class)9public class MockitoJUnitRunnerExample {10}11import org.mockito.runners.MockitoJUnitRunner;12import org.junit.runner.RunWith;13@RunWith(MockitoJUnitRunner.class)14public class MockitoJUnitRunnerExample {15}16import org.mockito.junit.MockitoJUnitRunner;17import org.junit.runner.RunWith;18@RunWith(MockitoJUnitRunner.class)19public class MockitoJUnitRunnerExample {20}21import org.mockito.runners.MockitoJUnitRunner;22import org.junit.runner.RunWith;23@RunWith(MockitoJUnitRunner.class)24public class MockitoJUnitRunnerExample {25}26import org.mockito.junit.MockitoJUnitRunner;27import org.junit.runner.RunWith;28@RunWith(MockitoJUnitRunner.class)29public class MockitoJUnitRunnerExample {30}31import org.mockito.runners.MockitoJUnitRunner;32import org.junit.runner.RunWith;33@RunWith(MockitoJUnitRunner.class)34public class MockitoJUnitRunnerExample {35}36import org.mockito.junit.MockitoJUnitRunner;37import org.junit.runner.RunWith;38@RunWith(MockitoJUnitRunner.class)39public class MockitoJUnitRunnerExample {40}41import org.mockito.runners.MockitoJUnitRunner;42import org.junit.runner.RunWith;43@RunWith(MockitoJUnitRunner.class)44public class MockitoJUnitRunnerExample {45}46import org.mockito.junit.MockitoJUnitRunner;47import org.junit.runner.RunWith;48@RunWith(MockitoJUnitRunner.class)49public class MockitoJUnitRunnerExample {50}51import org.mockito.runners.MockitoJUnitRunner;52import org.junit.runner.RunWith;53@RunWith(MockitoJUnitRunner.class)54public class MockitoJUnitRunnerExample {55}

MockitoJUnitRunner

Using AI Code Generation

1package com.tutorialspoint.junit;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.Mock;5import org.mockito.runners.MockitoJUnitRunner;6import static org.junit.Assert.assertEquals;7import static org.mockito.Mockito.when;8@RunWith(MockitoJUnitRunner.class)9public class TestJunit {10   Dependency dependency;11   public void test() {12      when(dependency.retrieveAllStats()).thenReturn(new int[] {24, 15, 3});13      SystemUnderTest systemUnderTest = new SystemUnderTest(dependency);14      int result = systemUnderTest.methodUsingAnArrayListConstructor();15      assertEquals(42, result);16   }17}18package com.tutorialspoint.junit;19import org.junit.Test;20import org.junit.runner.RunWith;21import org.mockito.Mock;22import org.mockito.runners.MockitoJUnitRunner;23import static org.junit.Assert.assertEquals;24import static org.mockito.Mockito.when;25@RunWith(MockitoJUnitRunner.class)26public class TestJunit {27   Dependency dependency;28   public void test() {29      when(dependency.retrieveAllStats()).thenReturn(new int[] {24, 15, 3});30      SystemUnderTest systemUnderTest = new SystemUnderTest(dependency);31      int result = systemUnderTest.methodUsingAnArrayListConstructor();32      assertEquals(42, result);33   }34}35package com.tutorialspoint.junit;36import org.junit.Test;37import org.junit.runner.RunWith;38import org.mockito.Mock;39import org.mockito.runners.MockitoJUnitRunner;40import static org.junit.Assert.assertEquals;41import static org.mockito.Mockito.when;42@RunWith(MockitoJUnitRunner.class)43public class TestJunit {44   Dependency dependency;45   public void test() {46      when(dependency.retrieveAllStats()).thenReturn(new int[] {24, 15, 3});47      SystemUnderTest systemUnderTest = new SystemUnderTest(dependency);48      int result = systemUnderTest.methodUsingAnArrayListConstructor();49      assertEquals(42, result);50   }51}52package com.tutorialspoint.junit;53import org.junit.Test;54import org.junit.runner.RunWith;55import org.mockito.Mock;56import org.mockito.runners.MockitoJUnitRunner;57import static org.junit.Assert.assertEquals;58import static org.mockito.Mockito.when;59@RunWith(MockitoJUnitRunner

MockitoJUnitRunner

Using AI Code Generation

1public class MockitoJUnitRunnerExample {2    private List mockedList;3    public void setUp() {4        MockitoAnnotations.initMocks(this);5    }6    public void test() {7        mockedList.add("one");8        verify(mockedList).add("one");9        assertEquals(0, mockedList.size());10    }11}12JVM name           : Java HotSpot(TM) 64-Bit Server VM13package com.journaldev.mockito;14import java.util.ArrayList;15import java.util.List;16import org.junit.Before;17import org.junit.Test;18import org.mockito.InjectMocks;19import org.mockito.Mock;20import org.mockito.Mockito;21import org.mockito.MockitoAnnotations;22import org.mockito.runners.MockitoJUnitRunner;23import static org.junit.Assert.assertEquals;24import static org.mockito.Mockito.verify;25public class MockitoJUnitRunnerExample2 {26    private ArrayList mockedList;27    public void setUp() {28        MockitoAnnotations.initMocks(this);29    }30    public void test() {31        mockedList.add("one");32        verify(mockedList).add("one");33        assertEquals(0, mockedList.size());34    }35}

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