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How to use testRule method of org.mockito.junit.MockitoJUnit class

Best Mockito code snippet using org.mockito.junit.MockitoJUnit.testRule

Source:VerificationCollector.java

1/*2 * Copyright (c) 2016 Mockito contributors3 * This program is made available under the terms of the MIT License.4 */5package org.mockito.junit;6import org.junit.rules.TestRule;7import org.mockito.Incubating;8import org.mockito.exceptions.base.MockitoAssertionError;9/**10 * Use this rule in order to collect multiple verification failures and report at once.11 * This new API in incubating - let us know if you find this feature useful.12 * Should it be turned on by default with Mockito JUnit Rule?13 * <p>14 * Although {@code VerificationCollector} is a JUnit Rule, it does not necessarily have to be used as a Test Rule15 * - see {@link #collectAndReport()}.16 * <p>17 * In the example below, the verification failure thrown by {@code byteReturningMethod()} does not block18 * verifying against the {@code simpleMethod()}. After the test is run, a report is generated stating all19 * collect verification failures.20 *21 * <pre class="code"><code class="java">22 *   &#064;Rule23 *   public VerificationCollector collector = MockitoJUnit.collector();24 *25 *   &#064;Test26 *   public void should_fail() {27 *       IMethods methods = mock(IMethods.class);28 *29 *       verify(methods).byteReturningMethod();30 *       verify(methods).simpleMethod();31 *   }32 * </code></pre>33 *34 * @see org.mockito.Mockito#verify(Object)35 * @see org.mockito.Mockito#verify(Object, org.mockito.verification.VerificationMode)36 * @since 2.1.037 */38@Incubating39public interface VerificationCollector extends TestRule {40    /**41     * Collect all lazily verified behaviour. If there were failed verifications, it will42     * throw a MockitoAssertionError containing all messages indicating the failed verifications.43     * <p>44     * Normally, users don't need to call this method because it is automatically invoked when test finishes45     * (part of the JUnit Rule behavior).46     * However, in some circumstances and edge cases, it might be useful to collect and report verification47     * errors in the middle of the test (for example: some scenario tests or during debugging).48     *49     * <pre class="code"><code class="java">50     *   &#064;Rule51     *   public VerificationCollector collector = MockitoJUnit.collector();52     *53     *   &#064;Test54     *   public void should_fail() {55     *       IMethods methods = mock(IMethods.class);56     *57     *       verify(methods).byteReturningMethod();58     *       verify(methods).simpleMethod();59     *60     *       //report all verification errors now:61     *       collector.collectAndReport();62     *63     *       //some other test code64     *   }65     * </code></pre>66     *67     * @throws MockitoAssertionError If there were failed verifications68     * @since 2.1.069     */70    @Incubating71    void collectAndReport() throws MockitoAssertionError;72    /**73     * Enforce all verifications are performed lazily. This method is automatically called when74     * used as JUnitRule and normally users don't need to use it.75     * <p>76     * You should only use this method if you are using a VerificationCollector77     * inside a method where only this method should be verified lazily. The other methods can78     * still be verified directly.79     *80     * <pre class="code"><code class="java">81     *   &#064;Test82     *   public void should_verify_lazily() {83     *       VerificationCollector collector = MockitoJUnit.collector().assertLazily();84     *85     *       verify(methods).byteReturningMethod();86     *       verify(methods).simpleMethod();87     *88     *       collector.collectAndReport();89     *   }90     * </code></pre>91     *92     * @return this93     * @since 2.1.094     */95    @Incubating96    VerificationCollector assertLazily();97}...

Source:JUnitTestRuleIntegratesWithRuleChainTest.java

...36    }37    public static class LenientByDefault {38        @Rule39        public final RuleChain chain =40                RuleChain.outerRule(MockitoJUnit.testRule(this))41                        .around(42                                (base, description) ->43                                        new Statement() {44                                            @Override45                                            public void evaluate() throws Throwable {46                                                assertThat(MockUtil.isMock(mock)).isTrue();47                                                called.set(true);48                                                base.evaluate();49                                            }50                                        });51        @Mock public IMethods mock;52        private AtomicBoolean called = new AtomicBoolean(false);53        @Test54        public void creates_mocks_in_correct_rulechain_ordering() {55            assertThat(MockUtil.isMock(mock)).isTrue();56            assertThat(called.get()).isTrue();57        }58    }59    public static class StrictByDefault {60        @Rule61        public final RuleChain chain =62                RuleChain.outerRule(MockitoJUnit.testRule(this).strictness(Strictness.STRICT_STUBS))63                        .around(64                                (base, description) ->65                                        new Statement() {66                                            @Override67                                            public void evaluate() throws Throwable {68                                                assertThat(MockUtil.isMock(mock)).isTrue();69                                                called.set(true);70                                                base.evaluate();71                                            }72                                        });73        @Mock public IMethods mock;74        private AtomicBoolean called = new AtomicBoolean(false);75        @Test76        public void creates_mocks_in_correct_rulechain_ordering() {...

Source:MutableStrictJUnitTestRuleTest.java

...31        JUnitResultAssert.assertThat(result).succeeds(1).fails(1, RuntimeException.class);32    }33    public static class LenientByDefault {34        @Rule35        public MockitoTestRule mockito = MockitoJUnit.testRule(this).strictness(Strictness.LENIENT);36        @Mock IMethods mock;37        @Test38        public void unused_stub() throws Throwable {39            when(mock.simpleMethod()).thenReturn("1");40        }41        @Test42        public void unused_stub_with_strictness() throws Throwable {43            // making Mockito strict only for this test method44            mockito.strictness(Strictness.STRICT_STUBS);45            when(mock.simpleMethod()).thenReturn("1");46        }47    }48    public static class StrictByDefault {49        @Rule50        public MockitoTestRule mockito =51                MockitoJUnit.testRule(this).strictness(Strictness.STRICT_STUBS);52        @Mock IMethods mock;53        @Test54        public void unused_stub() throws Throwable {55            when(mock.simpleMethod()).thenReturn("1");56        }57        @Test58        public void unused_stub_with_lenient() throws Throwable {59            // making Mockito lenient only for this test method60            mockito.strictness(Strictness.LENIENT);61            when(mock.simpleMethod()).thenReturn("1");62        }63    }64}...

Source:MockitoJUnit.java

...39     * @param testInstance The instance to initiate mocks for40     * @return the rule instance41     * @since 3.3.042     */43    public static MockitoTestRule testRule(Object testInstance) {44        return new JUnitTestRule(Plugins.getMockitoLogger(), Strictness.WARN, testInstance);45    }46    /**47     * Creates a rule instance that can perform lazy verifications.48     *49     * @see VerificationCollector50     * @return the rule instance51     * @since 2.1.052     */53    public static VerificationCollector collector() {54        return new VerificationCollectorImpl();55    }56    private MockitoJUnit() {}57}...

Source:JoinRoomViewModelTest.java

1package edu.cs309.cycloneinsider;2import androidx.arch.core.executor.testing.InstantTaskExecutorRule;3import org.junit.Rule;4import org.junit.Test;5import org.junit.rules.TestRule;6import org.junit.runner.RunWith;7import org.mockito.junit.MockitoJUnit;8import org.mockito.junit.MockitoJUnitRunner;9import org.mockito.junit.MockitoRule;10import java.util.ArrayList;11import java.util.List;12import edu.cs309.cycloneinsider.api.CycloneInsiderService;13import edu.cs309.cycloneinsider.api.models.RoomModel;14import edu.cs309.cycloneinsider.viewmodels.JoinRoomViewModel;15import io.reactivex.Observable;16import retrofit2.Response;17import static org.junit.Assert.assertEquals;18import static org.junit.Assert.assertTrue;19import static org.mockito.Mockito.mock;20import static org.mockito.Mockito.when;21@RunWith(MockitoJUnitRunner.class)22public class JoinRoomViewModelTest {23    @Rule24    public TestRule rule = new InstantTaskExecutorRule();25    @Rule26    public MockitoRule mockitoRule = MockitoJUnit.rule();27    @Test28    public void testViewModel() {29        CycloneInsiderService cycloneInsiderService = mock(CycloneInsiderService.class);30        JoinRoomViewModel joinRoomViewModel = new JoinRoomViewModel(cycloneInsiderService);31        ArrayList<RoomModel> list = new ArrayList<>();32        Observable<Response<List<RoomModel>>> observable = Observable.just(Response.success(list));33        when(cycloneInsiderService.getAllRooms()).thenReturn(observable);34        joinRoomViewModel.refresh();35        assertTrue(joinRoomViewModel.getRoomModelResponse().getValue().isSuccessful());36        assertEquals(list, joinRoomViewModel.getRoomModelResponse().getValue().body());37    }38}...

Source:ViewModelTest.java

1package com.hieupham.cleanarchitecture.feature;2import android.arch.core.executor.testing.InstantTaskExecutorRule;3import com.hieupham.cleanarchitecture.util.RxImmediateSchedulerRule;4import org.junit.After;5import org.junit.Before;6import org.junit.Rule;7import org.junit.rules.ExpectedException;8import org.junit.rules.TestRule;9import org.junit.rules.Timeout;10import org.junit.runner.RunWith;11import org.junit.runners.JUnit4;12import org.mockito.junit.MockitoJUnit;13import org.mockito.junit.MockitoRule;14/**15 * Created by hieupham on 5/22/18.16 */17@RunWith(JUnit4.class)18public abstract class ViewModelTest {19    @Rule20    public final MockitoRule mockitoRule = MockitoJUnit.rule();21    @Rule22    public final TestRule globalTimeoutRule = Timeout.seconds(20);23    @Rule24    public final ExpectedException thrownRule = ExpectedException.none();25    @Rule26    public final RxImmediateSchedulerRule rxImmediateSchedulerRule = new RxImmediateSchedulerRule();27    @Rule28    public final TestRule instantTaskExecutorRule = new InstantTaskExecutorRule();29    @Before30    public void before() {31    }32    @After33    public void after() {34    }35}...

Source:UseCaseTest.java

1package com.hieupham.cleanarchitecture.feature;2import android.arch.core.executor.testing.InstantTaskExecutorRule;3import com.hieupham.cleanarchitecture.util.RxImmediateSchedulerRule;4import org.junit.After;5import org.junit.Before;6import org.junit.Rule;7import org.junit.rules.ExpectedException;8import org.junit.rules.TestRule;9import org.junit.rules.Timeout;10import org.junit.runner.RunWith;11import org.junit.runners.JUnit4;12import org.mockito.junit.MockitoJUnit;13import org.mockito.junit.MockitoRule;14/**15 * Created by hieupham on 5/22/18.16 */17@RunWith(JUnit4.class)18public abstract class UseCaseTest {19    @Rule20    public final MockitoRule mockitoRule = MockitoJUnit.rule();21    @Rule22    public final TestRule globalTimeoutRule = Timeout.seconds(20);23    @Rule24    public final ExpectedException thrownRule = ExpectedException.none();25    @Rule26    public final TestRule instantTaskExecutorRule = new InstantTaskExecutorRule();27    @Rule28    public final RxImmediateSchedulerRule rxImmediateSchedulerRule = new RxImmediateSchedulerRule();29    @Before30    public void before() {31    }32    @After33    public void after() {34    }35}...

Source:RepositoryTest.java

1package com.hieupham.data.repository;2import android.arch.core.executor.testing.InstantTaskExecutorRule;3import com.hieupham.data.util.RxImmediateSchedulerRule;4import org.junit.After;5import org.junit.Before;6import org.junit.Rule;7import org.junit.rules.TestRule;8import org.junit.rules.Timeout;9import org.junit.runner.RunWith;10import org.junit.runners.JUnit4;11import org.mockito.junit.MockitoJUnit;12import org.mockito.junit.MockitoRule;13/**14 * Created by hieupham on 6/6/18.15 */16@RunWith(JUnit4.class)17public abstract class RepositoryTest {18    @Rule19    public final TestRule globalTimeoutRule = Timeout.seconds(20);20    @Rule21    public final MockitoRule mockitoRule = MockitoJUnit.rule();22    @Rule23    public final RxImmediateSchedulerRule rxImmediateSchedulerRule = new RxImmediateSchedulerRule();24    @Rule25    public final TestRule instantTaskExecutorRule = new InstantTaskExecutorRule();26    @Before27    public void before() {28    }29    @After30    public void after() {31    }32}...

testRule

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.junit.MockitoJUnit;4import org.mockito.junit.MockitoRule;5import org.mockito.quality.Strictness;6@RunWith(MockitoJUnit.class)7public class TestMockitoJUnit {8    public void testRule() {9        MockitoRule mockitoRule = MockitoJUnit.rule().strictness(Strictness.STRICT_STUBS);10    }11}12@RunWith(MockitoJUnit.class)13import org.junit.Test;14import org.junit.runner.RunWith;15import org.mockito.junit.MockitoJUnit;16import org.mockito.junit.MockitoRule;17import org.mockito.quality.Strictness;18@RunWith(MockitoJUnit.class)19public class TestMockitoJUnit {20    public void testRule() {21        MockitoRule mockitoRule = MockitoJUnit.rule().strictness(Strictness.STRICT_STUBS);22    }23}24@RunWith(MockitoJUnit.class)25import org.junit.Test;26import org.junit.runner.RunWith;27import org.mockito.junit.MockitoJUnit;28import org

testRule

Using AI Code Generation

1package com.ack.junit.mock;2import org.junit.Rule;3import org.junit.Test;4import org.mockito.junit.MockitoJUnit;5import org.mockito.junit.VerificationCollector;6import static org.mockito.Mockito.mock;7import static org.mockito.Mockito.verify;8public class MockitoJUnitTest {9  public VerificationCollector collector = MockitoJUnit.collector();10  public void testRule() {11    MyInterface mock = mock( MyInterface.class );12    mock.doSomething();13    verify( mock ).doSomething();14  }15}16package com.ack.junit.mock;17import org.junit.Rule;18import org.junit.Test;19import org.mockito.Mock;20import org.mockito.junit.MockitoJUnit;21import org.mockito.junit.MockitoRule;22import static org.mockito.Mockito.verify;23public class MockitoRuleTest {24  public MockitoRule rule = MockitoJUnit.rule();25  MyInterface mock;26  public void testRule() {27    mock.doSomething();28    verify( mock ).doSomething();29  }30}31package com.ack.junit.mock;32import org.junit.Rule;33import org.junit.Test;34import org.mockito.Mock;35import org.mockito.junit.MockitoJUnit;36import org.mockito.junit.MockitoRule;37import static org.mockito.Mockito.verify;38public class MockitoRuleTest {39  public MockitoRule rule = MockitoJUnit.rule();40  MyInterface mock;41  public void testRule() {42    mock.doSomething();43    verify( mock ).doSomething();44  }45}46package com.ack.junit.mock;47import org.junit.Rule;48import org.junit.Test;49import org.mockito.Mock;50import org.mockito.junit.MockitoJUnit;51import org.mockito.junit.MockitoRule;52import static org.mockito.Mockito.verify;53public class MockitoRuleTest {54  public MockitoRule rule = MockitoJUnit.rule();55  MyInterface mock;

testRule

Using AI Code Generation

1package com.mycompany.app;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.junit.MockitoJUnit;5import org.mockito.junit.MockitoRule;6@RunWith(MockitoJUnit.class)7public class AppTest {8    public void testApp() {9        MockitoRule mockitoRule = MockitoJUnit.testRule();10        System.out.println("MockitoRule object is: " + mockitoRule);11    }12}13package com.mycompany.app;14import org.junit.Test;15import org.junit.runner.RunWith;16import org.mockito.junit.MockitoJUnit;17import org.mockito.junit.MockitoRule;18@RunWith(MockitoJUnit.class)19public class AppTest {20    public void testApp() {21        MockitoRule mockitoRule = MockitoJUnit.rule();22        System.out.println("MockitoRule object is: " + mockitoRule);23    }24}25package com.mycompany.app;26import org.junit.Test;27import org.junit.runner.RunWith;28import org.mockito.junit.MockitoJUnit;29import org.mockito.junit.MockitoRule;30@RunWith(MockitoJUnit.class)31public class AppTest {32    public void testApp() {33        MockitoRule mockitoRule = MockitoJUnit.rule();34        System.out.println("MockitoRule object is: " + mockitoRule);35    }36}37package com.mycompany.app;38import org.junit.Test;39import org.junit.runner.RunWith;40import org.mockito.junit.MockitoJUnit;41import org.mockito.junit.MockitoRule;42@RunWith(MockitoJUnit.class)43public class AppTest {44    public void testApp() {

testRule

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.mockito.junit.MockitoJUnit;4import org.mockito.junit.MockitoRule;5public class TestRuleExample {6    public MockitoRule mockitoRule = MockitoJUnit.rule();7    public void testRule() {8    }9}10import org.junit.Rule;11import org.junit.Test;12import org.junit.runner.RunWith;13import org.mockito.junit.MockitoJUnitRunner;14@RunWith(MockitoJUnitRunner.class)15public class TestRuleExample {16    public MockitoRule mockitoRule = MockitoJUnit.rule();17    public void testRule() {18    }19}

testRule

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.mockito.Mock;4import org.mockito.junit.MockitoJUnit;5import org.mockito.junit.MockitoRule;6import java.util.LinkedList;7import java.util.List;8public class Test1 {9    public MockitoRule mockitoRule = MockitoJUnit.rule();10    List mockedList;11    public void test1() {12        mockedList.add("one");13        mockedList.clear();14        verify(mockedList).add("one");15        verify(mockedList).clear();16    }17}18-> at Test1.test1(Test1.java:22)19-> at Test1.test1(Test1.java:21)20import org.junit.Test;21import org.junit.runner.RunWith;22import org.mockito.Mock;23import org.mockito.junit.MockitoJUnit;24import org.mockito.junit.MockitoRule;25import org.mockito.runners.MockitoJUnitRunner;26import java.util.LinkedList;27import java.util.List;28@RunWith(MockitoJUnitRunner.class)29public class Test2 {30    List mockedList;31    public void test1() {32        mockedList.add("one");33        mockedList.clear();34        verify(mockedList).add("one");35        verify(mockedList).clear();36    }37}38-> at Test2.test1(Test2.java:22)39-> at Test2.test1(Test2.java:21)

testRule

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.mockito.Mock;4import org.mockito.junit.MockitoJUnit;5import org.mockito.junit.MockitoRule;6import static org.junit.Assert.assertEquals;7import static org.mockito.Mockito.when;8public class Test1 {9    private MyList list;10    public MockitoRule rule = MockitoJUnit.rule();11    public void test1() {12        when(list.size()).thenReturn(10);13        assertEquals(10, list.size());14    }15}16import org.junit.Rule;17import org.junit.Test;18import org.mockito.Mock;19import org.mockito.MockitoAnnotations;20import static org.junit.Assert.assertEquals;21import static org.mockito.Mockito.when;22public class Test2 {23    private MyList list;24    public MockitoRule rule = MockitoJUnit.rule();25    public Test2() {26        MockitoAnnotations.initMocks(this);27    }28    public void test2() {29        when(list.size()).thenReturn(10);30        assertEquals(10, list.size());31    }32}33import org.junit.Rule;34import org.junit.Test;35import org.junit.runner.RunWith;36import org.mockito.Mock;37import org.mockito.junit.MockitoJUnitRunner;38import static org.junit.Assert.assertEquals;39import static org.mockito.Mockito.when;40@RunWith(MockitoJUnitRunner.class)41public class Test3 {42    private MyList list;43    public MockitoRule rule = MockitoJUnit.rule();44    public void test3() {45        when(list.size()).thenReturn(10);46        assertEquals(10, list.size());47    }48}

testRule

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.junit.MockitoJUnit;4import org.mockito.junit.MockitoRule;5@RunWith(MockitoJUnitRunner.class)6public class TestMockitoJUnitRunner {7    private List<String> list;8    public MockitoRule rule = MockitoJUnit.rule();9    public void testRule() {10        list.add("Hello World");11        verify(list).add("Hello World");12    }13}14Following stubbings are unnecessary (click to navigate to relevant line of code):15  1. -> at TestMockitoJUnitRunner.testRule(TestMockitoJUnitRunner.java:17)16	at org.mockito.exceptions.misusing.UnnecessaryStubbingException.create(UnnecessaryStubbingException.java:28)17	at org.mockito.exceptions.misusing.UnnecessaryStubbingException.create(UnnecessaryStubbingException.java:27)18	at org.mockito.internal.junit.JUnitRule$1.evaluate(JUnitRule.java:92)19	at org.junit.rules.RunRules.evaluate(RunRules.java:20)20	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)21	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)22	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)23	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)24	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)25	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)26	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)27	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)28	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)29	at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)30	at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)31	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)

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