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

Copied to Clipboard!

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

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

Source:VerificationCollectorImplTest.java

...7import org.junit.Test;8import org.junit.runner.JUnitCore;9import org.junit.runner.Result;10import org.mockito.exceptions.base.MockitoAssertionError;11import org.mockito.junit.MockitoJUnit;12import org.mockito.junit.VerificationCollector;13import org.mockitousage.IMethods;14import static org.assertj.core.api.Assertions.assertThat;15import static org.junit.Assert.fail;16import static org.mockito.Mockito.*;17public class VerificationCollectorImplTest {18    @Test19    public void should_not_throw_any_exceptions_when_verifications_are_successful() {20        VerificationCollector collector = MockitoJUnit.collector().assertLazily();21        IMethods methods = mock(IMethods.class);22        methods.simpleMethod();23        verify(methods).simpleMethod();24        collector.collectAndReport();25    }26    @Test(expected = MockitoAssertionError.class)27    public void should_collect_verification_failures() {28        VerificationCollector collector = MockitoJUnit.collector().assertLazily();29        IMethods methods = mock(IMethods.class);30        verify(methods).simpleMethod();31        collector.collectAndReport();32    }33    @Test34    public void should_collect_multiple_verification_failures() {35        VerificationCollector collector = MockitoJUnit.collector().assertLazily();36        IMethods methods = mock(IMethods.class);37        verify(methods).simpleMethod();38        verify(methods).byteReturningMethod();39        try {40            collector.collectAndReport();41            fail();42        } catch (MockitoAssertionError error) {43            assertThat(error).hasMessageContaining("1. Wanted but not invoked:");44            assertThat(error).hasMessageContaining("2. Wanted but not invoked:");45        }46    }47    @Test48    public void should_only_collect_failures_ignore_successful_verifications() {49        VerificationCollector collector = MockitoJUnit.collector().assertLazily();50        IMethods methods = mock(IMethods.class);51        verify(methods, never()).simpleMethod();52        verify(methods).byteReturningMethod();53        this.assertAtLeastOneFailure(collector);54    }55    @Test56    public void should_continue_collecting_after_failing_verification() {57        VerificationCollector collector = MockitoJUnit.collector().assertLazily();58        IMethods methods = mock(IMethods.class);59        methods.simpleMethod();60        verify(methods).byteReturningMethod();61        verify(methods).simpleMethod();62        this.assertAtLeastOneFailure(collector);63    }64    private void assertAtLeastOneFailure(VerificationCollector collector) {65        try {66            collector.collectAndReport();67            fail();68        } catch (MockitoAssertionError error) {69            assertThat(error).hasMessageContaining("1. Wanted but not invoked:");70            assertThat(error.getMessage()).doesNotContain("2.");71        }72    }73    @Test74    public void should_invoke_collector_rule_after_test() {75        JUnitCore runner = new JUnitCore();76        Result result = runner.run(VerificationCollectorRuleInner.class);77        assertThat(result.getFailureCount()).isEqualTo(1);78        assertThat(result.getFailures().get(0).getMessage()).contains("1. Wanted but not invoked:");79    }80    // This class is picked up when running a test suite using an IDE. It fails on purpose.81    public static class VerificationCollectorRuleInner {82        @Rule83        public VerificationCollector collector = MockitoJUnit.collector();84        @Test85        public void should_fail() {86            IMethods methods = mock(IMethods.class);87            verify(methods).simpleMethod();88        }89        @Test90        public void should_not_fail() {91            IMethods methods = mock(IMethods.class);92            methods.simpleMethod();93            verify(methods).simpleMethod();94        }95    }96}...

Source:UserServiceTest.java

...6import org.junit.Test;7import org.mockito.InjectMocks;8import org.mockito.Mock;9import org.mockito.Mockito;10import org.mockito.junit.MockitoJUnit;11import org.mockito.junit.MockitoRule;12import org.springframework.test.util.ReflectionTestUtils;13import java.util.ArrayList;14import java.util.Arrays;15import java.util.concurrent.atomic.AtomicLong;16import static org.assertj.core.api.Assertions.assertThat;17import static org.junit.Assert.*;18import static org.mockito.Mockito.verify;19import static org.mockito.Mockito.when;20public class UserServiceTest {21    @Rule22    public MockitoRule rule = MockitoJUnit.rule();23    @InjectMocks24    private UserService userService;25    @Mock26    private UserRepository userRepository;27    @Mock28    private UserMapper userMapper;29    UserDto seppeDto;30    UserDto badgerDto;31    UserDto narwhalDto;32    @Before33    public void setUp() throws Exception {34        UserDto seppeDto = new UserDto("123456", "seppe", "seppe", "seppe", "seppe", "seppe", "seppe");35        UserDto badgerDto = new UserDto("123654", "badger", "badger", "badger", "badger", "badger", "badger");36        UserDto narwhalDto = new UserDto("654123", "narwhal", "narwhal", "narwhal", "narwhal", "narwhal", "narwhal");...

Source:MockitoRuleTest.java

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

...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    }...

Source:e_CaptorTest.java

2import org.junit.Rule;3import org.junit.Test;4import org.mockito.ArgumentCaptor;5import org.mockito.Captor;6import org.mockito.junit.MockitoJUnit;7import org.mockito.junit.MockitoRule;8import java.util.ArrayList;9import java.util.Arrays;10import java.util.List;11import static org.hamcrest.CoreMatchers.hasItem;12import static org.junit.Assert.assertThat;13import static org.mockito.Mockito.mock;14import static org.mockito.Mockito.verify;15/*16 * ArgumentCaptorå¯ä»¥å¸®å©æä»¬æ¥è¿è¡æè·æ·»å å°å¶ä¸çåç´ 17 * @Captor å¸®å©æä»¬è¿è¡ç¸åºçæ³¨è§£18 */19public class e_CaptorTest {20    @Rule21    public MockitoRule rule = MockitoJUnit.rule();22    @Captor23    private ArgumentCaptor<List<String>> captor;24    @Test25    public final void shouldContainCertainListItem() {26        List<String> asList = Arrays.asList("someElement_test", "someElement");27        final ArrayList<String> mockedList = mock(ArrayList.class);28        mockedList.addAll(asList);29        verify(mockedList).addAll(captor.capture());30        final List<String> capturedArgument = captor.getValue();31        assertThat(capturedArgument, hasItem("someElement"));32    }33}...

Source:MockitoJUnitRule.java

...3import org.junit.runners.model.FrameworkMethod;4import org.junit.runners.model.Statement;5import org.mockito.internal.junit.JUnitRule;6/**7 * Please use {@link MockitoJUnit#rule()} instead of direct use.8 * The reason of the deprecation is that we want to avoid concrete classes in the public api.9 *10 * @see MockitoJUnit11 * @since 1.10.612 */13@Deprecated14public class MockitoJUnitRule implements MethodRule, MockitoRule {15    //MethodRule is undeprecated in latest JUnit16    private final JUnitRule jUnitRule;17    /**18     * Please use {@link MockitoJUnit#rule()}.19     * The reason of the deprecation is that we want to avoid concrete classes in the public api.20     */21    @Deprecated22    public MockitoJUnitRule() {23        this.jUnitRule = new JUnitRule();24    }25    /**26     * Please use {@link MockitoJUnit#rule()}.27     * The reason of the deprecation is that we want to avoid concrete classes in the public api.28     */29    @Deprecated30    public MockitoJUnitRule(Object targetTest) {31        this();32    }33    public Statement apply(Statement base, FrameworkMethod method, Object target) {34        return jUnitRule.apply(base, target);35    }36}...

Source:LazyVerificationUnitTest.java

...4import static org.mockito.Mockito.verify;5import java.util.List;6import org.junit.Test;7import org.mockito.exceptions.base.MockitoAssertionError;8import org.mockito.junit.MockitoJUnit;9import org.mockito.junit.VerificationCollector;10public class LazyVerificationUnitTest {11    @Test12    public void whenLazilyVerified_thenReportsMultipleFailures() {13        VerificationCollector collector = MockitoJUnit.collector()14            .assertLazily();15        List mockList = mock(List.class);16        verify(mockList).add("one");17        verify(mockList).clear();18        try {19            collector.collectAndReport();20        } catch (MockitoAssertionError error) {21            assertTrue(error.getMessage()22                .contains("1. Wanted but not invoked:"));23            assertTrue(error.getMessage()24                .contains("2. Wanted but not invoked:"));25        }26    }27}...

Source:NavigationMapRouteTest.java

2import com.mapbox.mapboxsdk.maps.MapView;3import com.mapbox.mapboxsdk.maps.MapboxMap;4import org.junit.Rule;5import org.mockito.Mock;6import org.mockito.junit.MockitoJUnit;7import org.mockito.junit.MockitoRule;8public class NavigationMapRouteTest {9  @Mock10  MapView mapView;11  @Mock12  MapboxMap mapboxMap;13  @Rule14  public MockitoRule mockitoRule = MockitoJUnit.rule();15//  @Test16//  public void testSanity() {17//    new NavigationMapRoute(null, mapView, mapboxMap);18//  }19}...

MockitoJUnit

Using AI Code Generation

1package com.ack.junit.mock;2import static org.mockito.Mockito.*;3import java.util.LinkedList;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.mockito.Mock;7import org.mockito.runners.MockitoJUnitRunner;8@RunWith(MockitoJUnitRunner.class)9public class TestMockitoJUnit {10  private LinkedList<String> mockedList;11  public void verifyInteractions() {12    mockedList.add( "one" );13    mockedList.clear();14    verify( mockedList ).add( "one" );15    verify( mockedList ).clear();16  }17}18Following stubbings are unnecessary (click to navigate to relevant line of code):19  1. -> at com.ack.junit.mock.TestMockitoJUnit.verifyInteractions(TestMockitoJUnit.java:18)20	at com.ack.junit.mock.TestMockitoJUnit.verifyInteractions(TestMockitoJUnit.java:18)

MockitoJUnit

Using AI Code Generation

1import org.mockito.junit.MockitoJUnit;2import org.mockito.junit.MockitoRule;3import org.junit.Rule;4import org.junit.Test;5import static org.junit.Assert.assertEquals;6import static org.mockito.Mockito.*;7public class TestJunit {8   public MockitoRule mockitoRule = MockitoJUnit.rule();9   public void testAdd() {10      CalculatorService calcService = mock(CalculatorService.class);11      when(calcService.add(10.0,20.0)).thenReturn(30.00);12      when(calcService.subtract(20.0,10.0)).thenReturn(10.00);13      Calculator calc = new Calculator(calcService);14      assertEquals(calc.add(10.0, 20.0),30.0,0);15      assertEquals(calc.subtract(20.0, 10.0),10.0,0);16      assertEquals(calc.add(30.0, 40.0),70.0,0);17      assertEquals(calc.subtract(40.0, 30.0),10.0,0);18      assertEquals(calc.add(50.0, 60.0),110.0,0);19      assertEquals(calc.subtract(60.0, 50.0),10.0,0);20      assertEquals(calc.add(70.0, 80.0),150.0,0);21      assertEquals(calc.subtract(80.0, 70.0),10.0,0);22      assertEquals(calc.add(90.0, 100.0),190.0,0);23      assertEquals(calc.subtract(100.0, 90.0),10.0,0);24      assertEquals(calc.add(110.0, 120.0),230.0,0);25      assertEquals(calc.subtract(120.0, 110.0),10.0,0);26      assertEquals(calc.add(130.0

MockitoJUnit

Using AI Code Generation

1import org.junit.Test;2import org.mockito.Mock;3import org.mockito.junit.MockitoJUnit;4import org.mockito.junit.MockitoRule;5import static org.junit.Assert.assertEquals;6import static org.mockito.Mockito.when;7public class test1{8    test2 mock;9    public MockitoRule rule = MockitoJUnit.rule();10    public void test(){11        when(mock.add(1,2)).thenReturn(3);12        assertEquals(3,mock.add(1,2));13    }14}15public class test2{16    public int add(int a, int b){17        return a+b;18    }19}20JVM name           : Java HotSpot(TM) 64-Bit Server VM21@RunWith(MockitoJUnitRunner.class)22@RunWith(MockitoJUnitRunner.class)23public MockitoRule mockitoRule = MockitoJUnit.rule();24I am using IntelliJ IDEA 2018.3.4 (Ultimate Edition) Build #IU-183.5429.30, built on March 18, 2019 JRE: 1.8.0_202-release-1483-b49 amd64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o Windows 10 10.025public MockitoRule mockitoRule = MockitoJUnit.rule();26I am using IntelliJ IDEA 2018.3.4 (Ultimate Edition) Build #IU-183.5429.30, built on March 18,

MockitoJUnit

Using AI Code Generation

1import org.mockito.junit.MockitoJUnit;2import org.mockito.Mock;3import org.mockito.Mockito;4import org.mockito.junit.MockitoRule;5import org.junit.Rule;6import org.junit.Test;7import static org.junit.Assert.*;8public class Test1 {9    private Test2 test2;10    public MockitoRule mockitoRule = MockitoJUnit.rule();11    public void test1() {12        Mockito.when(test2.test2()).thenReturn(1);13        assertEquals(1, test2.test2());14    }15}16import org.mockito.MockitoAnnotations;17import org.mockito.Mock;18import org.mockito.Mockito;19import org.junit.Test;20import static org.junit.Assert.*;21public class Test2 {22    private Test3 test3;23    public Test2() {24        MockitoAnnotations.initMocks(this);25    }26    public void test2() {27        Mockito.when(test3.test3()).thenReturn(2);28        assertEquals(2, test3.test3());29    }30}31import org.mockito.junit.MockitoJUnitRunner;32import org.mockito.Mock;33import org.mockito.Mockito;34import org.junit.Test;35import org.junit.runner.RunWith;36import static org.junit.Assert.*;37@RunWith(MockitoJUnitRunner.class)38public class Test3 {39    private Test4 test4;40    public void test3() {41        Mockito.when(test4.test4()).thenReturn(3);42        assertEquals(3, test4.test4());43    }44}45import org.mockito.junit.MockitoJUnitRunner;46import org.mockito.InjectMocks;47import org.mockito.Mock;48import org.mockito.Mockito;49import org.junit.Test;50import org.junit.runner.RunWith;51import static org.junit.Assert.*;52@RunWith(MockitoJUnitRunner.class)53public class Test4 {54    private Test5 test5;55    private Test6 test6 = new Test6();56    public void test4() {57        Mockito.when(test5.test5()).thenReturn(4);58        assertEquals(4, test6.test6());59    }60}

MockitoJUnit

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.mockito.InjectMocks;4import org.mockito.Mock;5import org.mockito.junit.MockitoJUnitRunner;6import static org.mockito.Mockito.*;7import static org.junit.Assert.*;8@RunWith(MockitoJUnitRunner.class)9public class 1 {10    private 2 2;11    private 3 3;12    public void test4() {13        when(2.5()).thenReturn(6);14        int 7 = 3.8();15        assertEquals(6, 7);16        verify(2, times(1)).5();17        verify(2, atLeastOnce()).5();18        verify(2, atLeast(1)).5();19        verify(2, atMost(1)).5();20        verify(2, never()).5();21        verify(2).5();22    }23}24import java.util.List;25public class 2 {26    public int 5() {27        return 0;28    }29}

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.