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mock之InvalidUseOfMatchersException异常

新手小白对mock一知半解，就开始自测了，被这个InvalidUseOfMatchersException困扰了一晚上。排查了好久，大多数文章都把英文翻译了一遍，但自检无问题。最后发现是，注入的时候注解用成了@InjectMocks导致的，记录一下～
要开始补基础了，希望本文对你有所帮助～

• 异常信息

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: 
Misplaced argument matcher detected here:-> at com.baidu.feed.hadoop.mr.bbs.schedule.strategy.BS60AssignWorkerForJobStrategyTest.testAssignWorkerResource(BS60AssignWorkerForJobStrategyTest.java:146)
-> at com.baidu.feed.hadoop.mr.bbs.schedule.strategy.BS60AssignWorkerForJobStrategyTest.testAssignWorkerResource(BS60AssignWorkerForJobStrategyTest.java:146)
-> at com.baidu.feed.hadoop.mr.bbs.schedule.strategy.BS60AssignWorkerForJobStrategyTest.testAssignWorkerResource(BS60AssignWorkerForJobStrategyTest.java:146)You cannot use argument matchers outside of verification or stubbing.
Examples of correct usage of argument matchers:when(mock.get(anyInt())).thenReturn(null);doThrow(new RuntimeException()).when(mock).someVoidMethod(anyObject());verify(mock).someMethod(contains("foo"))Also, this error might show up because you use argument matchers with methods that cannot be mocked.
Following methods *cannot* be stubbed/verified: final/private/equals()/hashCode().
Mocking methods declared on non-public parent classes is not supported.

• 原因：

在mockgetDictMap方法时，错误使用了@InjectMocks注解，导致了InvalidUseOfMatchersException异常

    @InjectMocksprivate DictPropertyService dictPropertyService;......when(dictPropertyService.getDictMap(anyString(),anyString(), anyString())).thenReturn(oneJobStandardCoreMap);