的Mockito核

Question

我使用的是JUnitParams，junit和mockito-all的最新版本。

testCompile group: 'pl.pragmatists', name: 'JUnitParams', version: '1.1.1'
testCompile group: 'junit', name: 'junit', version: '4.12'
testCompile group: 'org.mockito', name: 'mockito-all', version: '2.0.2-beta'

在运行带注释NoSuchMethodError的JUnit测试时，我不断获得@RunWith(MockitoJUnitRunner.class)。

java.lang.NoSuchMethodError: org.mockito.internal.runners.RunnerFactory.createStrict(Ljava/lang/Class;)Lorg/mockito/internal/runners/InternalRunner;

    at org.mockito.junit.MockitoJUnitRunner.<init>(MockitoJUnitRunner.java:154)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
    at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:49)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

触发NoSuchMethodError例外的问题是什么？

代码：

@RunWith(MockitoJUnitRunner.class)
public class MockTest {

    @Mock
    ServletUriComponentsBuilder servletUriComponentsBuilder;

    @Before
    public void setup() {
        servletUriComponentsBuilder = mock(ServletUriComponentsBuilder.class);
    }

    @Test
    public void shouldGenerateUrl() {
        when(servletUriComponentsBuilder.fromUriString(anyString()).build().toString())
                .thenReturn("test");

        Assert.assertEquals("my message", "test", "test");
    }

}

Answer 1

的Mockito核

你的类路径上有Mockito 1.x和2.x.我认为那是因为你对mockito-all:2.0.2-beta有一个依赖关系，而你的一些其他依赖关系对mockito-core:1.x有一个传递依赖。

永远不要将mockito-all与构建系统一起使用，以进行依赖关系管理。而是使用

testCompile group: 'org.mockito', name: 'mockito-core', version: '2.0.2-beta'

甚至是更新版本（请参阅The Central Repository）

Mockito文档：https://github.com/mockito/mockito/wiki/Declaring-mockito-dependency

请告诉我，如果这不能解决问题。

创建模拟

这不是问题的原因，但也许有帮助。您正在创建ServletUriComponentsBuilder两次。首先，MockitoRunner会因@Mock注释而创建它，然后您使用setup方法中的新模拟覆盖它。所以要么你做

@RunWith(MockitoJUnitRunner.class)
public class MockTest {

    @Mock
    ServletUriComponentsBuilder servletUriComponentsBuilder;

    @Test
    ...

或者你做

public class MockTest {

    ServletUriComponentsBuilder servletUriComponentsBuilder;

    @Before
    public void setup() {
        servletUriComponentsBuilder = mock(ServletUriComponentsBuilder.class);
    }

    @Test
    ...

你甚至可以做得更短

public class MockTest {

    ServletUriComponentsBuilder servletUriComponentsBuilder
         = mock(ServletUriComponentsBuilder.class);

    @Test
    ...

NoSuchMethodError：org.mockito.internal.runners.RunnerFactory.createStrict

1 个答案:

的Mockito核

创建模拟