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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}

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