java - Mockito：“参数匹配器的使用无效！”，但我已经一直在使用匹配器

问题描述

我有 2 个模拟测试。我用一些when调用来准备第一个模拟，然后我用一个when返回第一个模拟的调用来准备第二个模拟。

但是，我正在InvalidUseOfMatchersException准备第二个模拟。Mockito 似乎不喜欢使用any(HttpRequest.class). 我在其他项目中多次使用这种方法，没有问题。原因是什么？

我考虑过的导致此错误的一些可能原因包括

这个项目使用Java 6。mockito-core版本是1.8.5。
该getResponse方法仅在的超类中定义SimpleHttpResponseProvider。
被getResponse标记final在超类中。如果使用反射，我不确定这会给 Mockito 带来问题。编辑：是的，这就是问题所在。

该getResponse方法是synchronized。但是，删除synchronized关键字并重试会导致同样的失败。

public class Team5MockHttpServerTest {

    private HttpResponse httpResponse;
    private SimpleHttpResponseProvider simpleHttpResponseProvider;

    @Test
    public void whenAllBehaviorIsNominalThenExpectationsAreMet() throws IOException {

        int expectedStatusCode = 200;
        String contentType = "application/json";
        String body = "{\"message\":\"Hello world\"}";

        this.httpResponse = mock(HttpResponse.class);
        when(this.httpResponse.getHttpCode()).thenReturn(expectedStatusCode);
        when(this.httpResponse.getContentType()).thenReturn(contentType);
        when(this.httpResponse.getContent()).thenReturn(body.getBytes());

        this.simpleHttpResponseProvider = mock(SimpleHttpResponseProvider.class);
        when(this.simpleHttpResponseProvider.getResponse(any(HttpRequest.class))) // Exception here
            .thenReturn(this.httpResponse);
    }
}

错误：

Running com.github.kristofa.test.http.Team5MockHttpServerTest
Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 0.05 sec <<< FAILURE!
whenAllBehaviorIsNominalThenExpectationsAreMet(com.github.kristofa.test.http.Team5MockHttpServerTest)  Time elapsed: 0.048 sec  <<< ERROR!
org.mockito.exceptions.misusing.InvalidUseOfMatchersException: 
Invalid use of argument matchers!
0 matchers expected, 1 recorded.
This exception may occur if matchers are combined with raw values:
    //incorrect:
    someMethod(anyObject(), "raw String");
When using matchers, all arguments have to be provided by matchers.
For example:
    //correct:
    someMethod(anyObject(), eq("String by matcher"));
For more info see javadoc for Matchers class.
    at com.github.kristofa.test.http.AbstractHttpResponseProvider.getResponse(AbstractHttpResponseProvider.java:77)
    at com.github.kristofa.test.http.Team5MockHttpServerTest.whenAllBehaviorIsNominalThenExpectationsAreMet(Team5MockHttpServerTest.java:60)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
whenAllBehaviorIsNominalThenExpectationsAreMet(com.github.kristofa.test.http.Team5MockHttpServerTest)  Time elapsed: 0.049 sec  <<< ERROR!
java.lang.NullPointerException
    at com.github.kristofa.test.http.Team5MockHttpServerTest.tearDown(Team5MockHttpServerTest.java:44)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:36)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)

标签： javaunit-testingtestingmockito

java - Mockito：“参数匹配器的使用无效！”，但我已经一直在使用匹配器

问题描述

解决方案

推荐阅读