Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

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.*;

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.