How to use MockitoJUnit.rule method of org.mockito.junit.MockitoJUnitRunner class

Best Mockito code snippet using org.mockito.junit.MockitoJUnitRunner.MockitoJUnit.rule

Source:StrictRunnerTest.java

1/*2 * Copyright (c) 2017 Mockito contributors3 * This program is made available under the terms of the MIT License.4 */5package org.mockitousage.junitrunner;6import org.junit.Before;7import org.junit.Rule;8import org.junit.Test;9import org.junit.runner.JUnitCore;10import org.junit.runner.Result;11import org.junit.runner.RunWith;12import org.mockito.Mock;13import org.mockito.exceptions.misusing.UnnecessaryStubbingException;14import org.mockito.junit.MockitoJUnit;15import org.mockito.junit.MockitoRule;16import org.mockito.junit.MockitoJUnitRunner;17import org.mockitousage.IMethods;18import org.mockitoutil.JUnitResultAssert;19import org.mockitoutil.TestBase;20import static org.junit.Assert.assertEquals;21import static org.mockito.Mockito.mock;22import static org.mockito.Mockito.when;23public class StrictRunnerTest extends TestBase {24    JUnitCore runner = new JUnitCore();25    @Test public void succeeds_when_all_stubs_were_used() {26        //when27        Result result = runner.run(28                StubbingInConstructorUsed.class,29                StubbingInBeforeUsed.class,30                StubbingInTestUsed.class31        );32        //then33        JUnitResultAssert.assertThat(result).isSuccessful();34    }35    @Test public void fails_when_stubs_were_not_used() {36        Class[] tests = {StubbingInConstructorUnused.class,37                StubbingInBeforeUnused.class,38                StubbingInTestUnused.class};39        //when40        Result result = runner.run(tests);41        //then42        JUnitResultAssert.assertThat(result).fails(3, UnnecessaryStubbingException.class);43    }44    @Test public void does_not_report_unused_stubs_when_different_failure_is_present() {45        //when46        Result result = runner.run(WithUnrelatedAssertionFailure.class);47        //then48        JUnitResultAssert.assertThat(result).fails(1, MyAssertionError.class);49    }50    @Test public void runner_can_coexist_with_rule() {51        //I don't believe that this scenario is useful52        //I only wish that Mockito does not break awkwardly when both: runner & rule is used53        //when54        Result result = runner.run(RunnerAndRule.class);55        //then56        JUnitResultAssert.assertThat(result).fails(1, UnnecessaryStubbingException.class);57    }58    @Test public void runner_in_multi_threaded_tests() {59        //when60        Result result = runner.run(StubUsedFromDifferentThread.class);61        //then62        JUnitResultAssert.assertThat(result).isSuccessful();63    }64    @RunWith(MockitoJUnitRunner.class)65    public static class StubbingInConstructorUsed extends StubbingInConstructorUnused {66        @Test public void test() {67            assertEquals("1", mock.simpleMethod(1));68        }69    }70    @RunWith(MockitoJUnitRunner.Strict.class) //using Strict to make sure it does the right thing71    public static class StubbingInConstructorUnused {72        IMethods mock = when(mock(IMethods.class).simpleMethod(1)).thenReturn("1").getMock();73        @Test public void dummy() {}74    }75    @RunWith(MockitoJUnitRunner.class)76    public static class StubbingInBeforeUsed extends StubbingInBeforeUnused {77        @Test public void test() {78            assertEquals("1", mock.simpleMethod(1));79        }80    }81    @RunWith(MockitoJUnitRunner.class)82    public static class StubbingInBeforeUnused {83        @Mock IMethods mock;84        @Before public void before() {85            when(mock.simpleMethod(1)).thenReturn("1");86        }87        @Test public void dummy() {}88    }89    @RunWith(MockitoJUnitRunner.class)90    public static class StubbingInTestUsed {91        @Test public void test() {92            IMethods mock = mock(IMethods.class);93            when(mock.simpleMethod(1)).thenReturn("1");94            assertEquals("1", mock.simpleMethod(1));95        }96    }97    @RunWith(MockitoJUnitRunner.class)98    public static class StubbingInTestUnused {99        @Test public void test() {100            IMethods mock = mock(IMethods.class);101            when(mock.simpleMethod(1)).thenReturn("1");102            mock.simpleMethod(2); //different arg103        }104    }105    private static class MyAssertionError extends AssertionError {}106    @RunWith(MockitoJUnitRunner.class)107    public static class WithUnrelatedAssertionFailure {108        IMethods mock = mock(IMethods.class);109        IMethods mock2 = mock(IMethods.class);110        @Before public void before() {111            when(mock2.simpleMethod("unused stubbing")).thenReturn("");112        }113        @Test public void passing_test() {114            when(mock.simpleMethod(1)).thenReturn("1");115            assertEquals("1", mock.simpleMethod(1));116        }117        @Test public void failing_test() {118            throw new MyAssertionError();119        }120    }121    @RunWith(MockitoJUnitRunner.class)122    public static class RunnerAndRule {123        public @Rule MockitoRule rule = MockitoJUnit.rule();124        IMethods mock = mock(IMethods.class);125        @Test public void passing_test() {126            when(mock.simpleMethod(1)).thenReturn("1");127            mock.simpleMethod(2);128        }129    }130    @RunWith(MockitoJUnitRunner.class)131    public static class StubUsedFromDifferentThread {132        IMethods mock = mock(IMethods.class);133        @Test public void passing_test() throws Exception {134            //stubbing is done in main thread:135            when(mock.simpleMethod(1)).thenReturn("1");136            //stubbing is used in a different thread137            //stubbing should not be reported as unused by the runner138            Thread t = new Thread() {139                public void run() {140                    mock.simpleMethod(1);141                }142            };143            t.start();144            t.join();145        }146    }147}...

Source:AnnotationTest.java

1package dmitr2ish.com.github.annotations.support;2import org.junit.Before;3import org.junit.Rule;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.mockito.InjectMocks;7import org.mockito.Mock;8import org.mockito.MockitoAnnotations;9import org.mockito.junit.MockitoJUnit;10import org.mockito.junit.MockitoJUnitRunner;11import org.mockito.junit.MockitoRule;12import java.time.LocalDate;13import java.util.ArrayList;14import java.util.List;15import static org.junit.Assert.assertEquals;16import static org.mockito.Mockito.when;17//we have three case of mock init:18// 1 - via @RunWith(MockitoJUnitRunner.class)19// 2 - via  MockitoAnnotations.initMocks(this)20// 3 - via @Rule MockitoJUnit.rule();21//if we use initMocks we can delete this annotation22// @RunWith(MockitoJUnitRunner.class)//extension for mock's annotation use23public class AnnotationTest {24    @Rule//must be public25    public MockitoRule mockitoRule = MockitoJUnit.rule();//provide check our annotations26    @InjectMocks//here we point where we want to inject our mock's dependency27    private SBookService bookService;28    @Mock//dependency of test class29    private SBookRepository bookRepository;30//    @Before31//    public void beforeEach() {32//        MockitoAnnotations.initMocks(this);33//    }34    @Test35    public void demoCreateMocksUsingAnnotations() {36        SBook book1 = new SBook("1234", "Mockito in Action", 500, LocalDate.now());37        SBook book2 = new SBook("1235", "JUnit in Action", 400, LocalDate.now());38        List<SBook> newBooks = new ArrayList<>();39        newBooks.add(book1);40        newBooks.add(book2);41        when(bookRepository.findNewBooks(7)).thenReturn(newBooks);42        List<SBook> newBooksWithAppliedDiscount =43                bookService.getNewBooksWithAppliedDiscount(10, 7);44        assertEquals(2, newBooksWithAppliedDiscount.size());45        assertEquals(450, newBooksWithAppliedDiscount.get(0).getPrice());46        assertEquals(360, newBooksWithAppliedDiscount.get(1).getPrice());47    }48}...

Source:LoginActivityPresenterTest.java

1package com.foi_bois.zisprojekt;2import org.junit.Before;3import org.junit.Rule;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.mockito.Mock;7import org.mockito.junit.MockitoJUnit;8import org.mockito.junit.MockitoJUnitRunner;9import org.mockito.junit.MockitoRule;10import com.foi_bois.zisprojekt.auth.LoginPresenter;11import com.foi_bois.zisprojekt.auth.LoginPresenterImpl;12import com.foi_bois.zisprojekt.auth.ui.LoginView;13import com.foi_bois.zisprojekt.model.User;14import static org.mockito.Mockito.*;15@RunWith(MockitoJUnitRunner.class)16public class LoginActivityPresenterTest {17    @Rule18    public MockitoRule mockitoRule = MockitoJUnit.rule(); //ako nam bude trebao neki drugi runner, a la Google SDK-a19    @Mock20    LoginView view;21    private LoginPresenter presenter;22    @Before23    public void setUp() {24        presenter = new LoginPresenterImpl(view, userRepository);25    }26    @Test public void shouldPassUserToView() {27        //given28        User currUser = new User("123", "234");29        when(userRepository.getCurrentUser()).thenReturn(currUser);30        //when31        presenter.validateUser();32        //then33        verify(view).greetUser(currUser);34    }35    @Test public void shouldHandleWrongPassword() {36        when(userRepository.getCurrentUser()).thenReturn(null);37        presenter.validateUser();38        verify(view).displayWrongPasswordError(null);39    }40    @Test public void shouldHandleError(){ //ako se pojavi iznimka, test provjerava zove li se u tom slucaju displayError()41        when(userRepository.getCurrentUser()).thenThrow(new RuntimeException("explosion"));42        presenter.validateUser();43        verify(view).displayError();44    }45}...

Source:MockitoRuleTest.java

1package com.learning.mockito;2import org.junit.Rule;3import org.junit.jupiter.api.Test;4import org.junit.runner.RunWith;5import org.mockito.Mock;6import org.mockito.junit.MockitoJUnit;7import org.mockito.junit.MockitoJUnitRunner;8import org.mockito.junit.MockitoRule;9import org.mockito.quality.Strictness;10import java.util.List;11/**12 * 23. Automatic instantiation of @Spies, @InjectMocks and constructor injection goodness (Since 1.9.0)13 * Mockito will now try to instantiate @Spy and will instantiate @InjectMocks fields using constructor injection, setter injection, or field injection.14 *15 * To take advantage of this feature you need to use MockitoAnnotations.openMocks(Object), MockitoJUnitRunner or MockitoRule.16 *17 * Read more about available tricks and the rules of injection in the javadoc for InjectMocks18 *19 *20 *  //instead:21 *  @Spy BeerDrinker drinker = new BeerDrinker();22 *  //you can write:23 *  @Spy BeerDrinker drinker;24 *25 *  //same applies to @InjectMocks annotation:26 *  @InjectMocks LocalPub;27 *28 *  For More Information:29 *  https://javadoc.io/static/org.mockito/mockito-core/3.5.11/org/mockito/junit/MockitoJUnit.html#rule--30 *31 */32//@RunWith(MockitoJUnitRunner.class)33public class MockitoRuleTest {34    //Creating new rule with recommended Strictness setting35    @Rule public MockitoRule rule = MockitoJUnit.rule().strictness(Strictness.STRICT_STUBS);36    @Mock37    private List list;38    @Test39    public void shouldDoSomething() {40        //list.add(100);41        //did not work.42    }43}...

Source:TemperatureConverterTest.java

1package ua.kopylov.temperature.converter;2import org.junit.Rule;3import org.junit.Test;4import org.junit.runner.RunWith;5import org.mockito.InjectMocks;6import org.mockito.Mock;7import org.mockito.junit.MockitoJUnit;8import org.mockito.junit.MockitoJUnitRunner;9import org.mockito.junit.MockitoRule;10import ua.kopylov.temperature.Temperature;11import ua.kopylov.temperature.extractor.Extractor;12import java.util.List;13import static org.junit.Assert.*;14import static org.mockito.Mockito.when;15@RunWith(MockitoJUnitRunner.class)16public class TemperatureConverterTest {17    @InjectMocks18    private TemperatureConverter converter;19    @Mock20    private Extractor extractor;21    @Rule public MockitoRule rule = MockitoJUnit.rule();22    @Test23    public void convertAbsoluteZero() {24        String temperature = "0K";25        when(extractor.get(temperature)).thenReturn(new Temperature(0d, TemperatureScale.KELVIN));26        List<Temperature> actual = converter.run(temperature);27        assertNotNull(actual);28        assertEquals(TemperatureScale.values().length - 1, actual.size());29        assertEquals(TemperatureScale.CELSIUS, actual.get(0).getScale());30        assertEquals(-273.15d, actual.get(0).getDegree(), 0.01d);31        assertEquals(TemperatureScale.FAHRENHEIT, actual.get(1).getScale());32        assertEquals(-459.67d, actual.get(1).getDegree(), 0.01d);33    }34    public void convertNull() {35    }36}...

Source:AbstractJUnitUnitTests.java

1package com.test;2import org.junit.Rule;3import org.mockito.junit.MockitoJUnit;4import org.mockito.junit.MockitoRule;5/**6 * Abstract unit test class for JUnit.7 *8 * <p>References:9 * <ul>10 *   <li>Spring Framework:11 *       <a href="http://docs.spring.io/spring/docs/current/spring-framework-reference/html/unit-testing.html">12 *           14. Unit Testing</a>13 *   </li>14 *   <li>Mockito:15 *       <a href="http://site.mockito.org/mockito/docs/current/org/mockito/Mockito.html#9">16 *           9. Shorthand for mocks creation - @Mock annotation</a>17 *   </li>18 *   <li>19 *       <a href="http://junit.org/junit4/cookbook.html">20 *           JUnit Cookbook</a>21 *   </li>22 * </ul>23 *24 * @see org.mockito.junit.MockitoJUnit#rule()25 * @see org.mockito.junit.MockitoRule26 * @see org.mockito.runners.MockitoJUnitRunner27 * @see org.mockito.MockitoAnnotations#initMocks(Object)28 * @author Bert Lee29 * @since 2014-8-1930 */31//@RunWith(MockitoJUnitRunner.class)32public abstract class AbstractJUnitUnitTests {33    @Rule // éæ JUnit34    public MockitoRule rule = MockitoJUnit.rule(); // @Mock æ³¨è§£35//	@Before // éæ JUnit36//	public void initMocks() {37//		MockitoAnnotations.initMocks(this); // @Mock æ³¨è§£38//	}39}...

Source:AdministratorRestControllerTest.java

1package com.slasher.slasherproductions.restapi;2import org.junit.Rule;3import org.junit.jupiter.api.Test;4import org.junit.runner.RunWith;5import org.mockito.junit.MockitoJUnit;6import org.mockito.junit.MockitoJUnitRunner;7import org.mockito.junit.MockitoRule;8import org.springframework.boot.test.context.SpringBootTest;9@RunWith(MockitoJUnitRunner.class)10@SpringBootTest11public class AdministratorRestControllerTest {12    @Rule13    public MockitoRule initRule = MockitoJUnit.rule();14    @Test15    void shouldReturnHttpStatusCreate() {16    }17}...

Source:BaseTest.java

1package com.gve.testapplication.test_common;2import org.junit.Rule;3import org.junit.runner.RunWith;4import org.mockito.junit.MockitoJUnit;5import org.mockito.junit.MockitoJUnitRunner;6import org.mockito.junit.MockitoRule;7@RunWith(MockitoJUnitRunner.StrictStubs.class)8public abstract class BaseTest {9    @Rule10    public final MockitoRule rule = MockitoJUnit.rule();11    @Rule12    public final RxSchedulerOverrideRule overrideSchedulersRule = new RxSchedulerOverrideRule();13}...

MockitoJUnit.rule

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.mockito.junit.MockitoJUnit;4import org.mockito.junit.MockitoRule;5public class Test1 {6    public MockitoRule mockitoRule = MockitoJUnit.rule();7    public void test() {8    }9}10import org.junit.Rule;11import org.junit.Test;12import org.mockito.junit.MockitoJUnit;13import org.mockito.junit.MockitoRule;14public class Test2 {15    public MockitoRule mockitoRule = MockitoJUnit.rule();16    public void test() {17    }18}19import org.junit.Rule;20import org.junit.Test;21import org.mockito.junit.MockitoJUnit;22import org.mockito.junit.MockitoRule;23public class Test3 {24    public MockitoRule mockitoRule = MockitoJUnit.rule();25    public void test() {26    }27}28import org.junit.Rule;29import org.junit.Test;30import org.mockito.junit.MockitoJUnit;31import org.mockito.junit.MockitoRule;32public class Test4 {33    public MockitoRule mockitoRule = MockitoJUnit.rule();34    public void test() {35    }36}37import org.junit.Rule;38import org.junit.Test;39import org.mockito.junit.MockitoJUnit;40import org.mockito.junit.MockitoRule;41public class Test5 {42    public MockitoRule mockitoRule = MockitoJUnit.rule();43    public void test() {44    }45}46import org.junit.Rule;47import org.junit.Test;48import org.mockito.junit.MockitoJUnit;49import org.mockito.junit.MockitoRule;50public class Test6 {51    public MockitoRule mockitoRule = MockitoJUnit.rule();52    public void test() {53    }54}55import org.junit.Rule;56import

MockitoJUnit.rule

Using AI Code Generation

1package com.ack.junit.mockito;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.ExpectedException;5import org.mockito.Mock;6import org.mockito.junit.MockitoJUnit;7import org.mockito.junit.MockitoRule;8import java.util.List;9import static org.junit.Assert.assertEquals;10import static org.junit.Assert.assertNull;11import static org.mockito.Mockito.when;12public class MockitoJUnitRuleTest {13  public MockitoRule mockitoRule = MockitoJUnit.rule();14  public ExpectedException expectedException = ExpectedException.none();15  private List<String> mockedList;16  public void testMockCreation() {17    assertNull( mockedList.get( 0 ) );18    assertNull( mockedList.toArray() );19  }20  public void testStubbing() {21    when( mockedList.get( 0 ) ).thenReturn( "first" );22    when( mockedList.get( 1 ) ).thenThrow( new RuntimeException() );23    assertEquals( "first", mockedList.get( 0 ) );24    expectedException.expect( RuntimeException.class );25    mockedList.get( 1 );26  }27}28-> at com.ack.junit.mockito.MockitoJUnitRuleTest.testStubbing(MockitoJUnitRuleTest.java:37)29    when(mock.isOk()).thenReturn(true);30    when(mock.isOk()).thenThrow(exception);31    doThrow(exception).when(mock).someVoidMethod();32    doAnswer(new Answer() {33        Object answer(InvocationOnAr

MockitoJUnit.rule

Using AI Code Generation

1package org.mockito.junit;2import org.junit.Rule;3import org.junit.Test;4import org.mockito.Mock;5import org.mockito.junit.MockitoJUnit;6import org.mockito.junit.MockitoRule;7import java.util.List;8public class MockitoJUnitRunnerTest {9    public MockitoRule rule = MockitoJUnit.rule();10    private List mockedList;11    public void test() {12        mockedList.add("one");13    }14}

MockitoJUnit.rule

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.mockito.Mock;5import org.mockito.junit.MockitoJUnit;6import org.mockito.junit.MockitoRule;7import java.util.List;8import static org.junit.Assert.assertEquals;9import static org.mockito.Mockito.when;10@RunWith(MockitoJUnitRunner.class)11public class Test1 {12    List mockList;13    public MockitoRule mockitoRule = MockitoJUnit.rule();14    public void test1() {15        when(mockList.get(0)).thenReturn("Hello World");16        assertEquals("Hello World", mockList.get(0));17    }18}

MockitoJUnit.rule

Using AI Code Generation

1import org.mockito.junit.MockitoJUnit;2import org.mockito.junit.MockitoRule;3import static org.mockito.Mockito.*;4import org.junit.runner.RunWith;5import org.mockito.junit.MockitoJUnitRunner;6import org.mockito.runners.MockitoJUnitRunner;7import org.junit.Rule;8import org.junit.Test;9import java.util.*;10@RunWith(MockitoJUnitRunner.class)11public class MyClassTest {12    public MockitoRule mockitoRule = MockitoJUnit.rule();13    public void test() {14        List mockedList = mock(List.class);15        mockedList.add("one");16        mockedList.clear();17        verify(mockedList).add("one");18        verify(mockedList).clear();19    }20}21	at org.mockito.internal.runners.util.RunnerProviderImpl.instantiate(RunnerProviderImpl.java:36)22	at org.mockito.internal.runners.util.RunnerProviderImpl.getRunner(RunnerProviderImpl.java:27)23	at org.mockito.internal.runners.DefaultInternalRunnerFactory.create(DefaultInternalRunnerFactory.java:11)24	at org.mockito.internal.runners.DefaultRunnerFactory.create(DefaultRunnerFactory.java:22)25	at org.mockito.internal.runners.StrictRunnerFactory.create(StrictRunnerFactory.java:14)26	at org.mockito.internal.runners.DefaultRunnerProvider$1.create(DefaultRunnerProvider.java:24)27	at org.mockito.internal.runners.DefaultRunnerProvider$1.create(DefaultRunnerProvider.java:21)28	at org.mockito.internal.runners.DefaultRunnerProvider.newInstance(DefaultRunnerProvider.java:32)29	at org.mockito.internal.runners.DefaultRunnerProvider.getRunner(DefaultRunnerProvider.java:37)30	at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.<init>(JUnit45AndHigherRunnerImpl.java:13)31	at org.mockito.runners.MockitoJUnitRunner.<init>(MockitoJUnitRunner.java:15)32	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)33	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)34	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)35	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)36	at org.mockito.internal.runners.util.RunnerProviderImpl.instantiate(RunnerProviderImpl.java:34)37	at org.mockito.internal.runners.util.RunnerProviderImpl.getRunner(RunnerProviderImpl.java:27)38	at org.mockito.internal.runners.DefaultInternalRunnerFactory.create(DefaultInternalRunnerFactory.java:11)

MockitoJUnit.rule

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.Mock;4import org.mockito.junit.MockitoJUnit;5import org.mockito.junit.MockitoRule;6import static org.mockito.Mockito.*;7@RunWith(MockitoJUnitRunner.class)8public class MockitoJUnitRunner {9   List mockList;10   public void usingMockitoJUnitRunner() {11      mockList.add("one");12      verify(mockList).add("one");13   }14}15import org.junit.Test;16import org.junit.runner.RunWith;17import org.mockito.Mock;18import org.mockito.junit.MockitoJUnit;19import org.mockito.junit.MockitoRule;20import static org.mockito.Mockito.*;21@RunWith(MockitoJUnitRunner.class)22public class MockitoJUnitRunner {23   List mockList;24   public void usingMockitoJUnitRunner() {25      mockList.add("one");26      verify(mockList).add("one");27   }28}29import org.junit.Test;30import org.junit.runner.RunWith;31import org.mockito.Mock;32import org.mockito.junit.MockitoJUnit;33import org.mockito.junit.MockitoRule;34import static org.mockito.Mockito.*;35@RunWith(MockitoJUnitRunner.class)36public class MockitoJUnitRunner {37   List mockList;38   public void usingMockitoJUnitRunner() {39      mockList.add("one");40      verify(mockList).add("one");41   }42}43import org.junit.Test;44import org.junit.runner.RunWith;45import org.mockito.Mock;46import org.mockito.junit.MockitoJUnit;47import org.mockito.junit.MockitoRule;48import static org.mockito.Mockito.*;

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