java - Mockito 模拟调用点指向 Junit 代码(ParentRunner)

Question

以前从未见过此问题 - 当使用 verify 或 verifyInteractions 且测试失败时，Mockito 的调用列表指向 JUnit 代码而不是应用程序代码:

[junit] No interactions wanted here:
[junit] -> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
[junit] But found this interaction on mock 'mockCounter':
[junit] -> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
[junit] ***
[junit] For your reference, here is the list of all invocations ([?] - means unverified).
[junit] 1. [?]-> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
[junit] 2. [?]-> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
[junit] 3. -> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
[junit]
[junit] junit.framework.AssertionFailedError:
[junit] No interactions wanted here:
[junit] But found this interaction on mock 'mockCounter':
[junit] ***
[junit] For your reference, here is the list of all invocations ([?] - means unverified).

我正在使用 Mockito 1.10.19 和 JUnit 4.12。代码非常标准:

public class MyTest {
    @Rule
    public MockitoRule mockitoRule = MockitoJUnit.rule();

    @Mock
    private Counter mockCounter;

...

    @Test
    public void test() {
       ...
       verifyNoMoreInteractions(mockCounter);
    }

首先，我还使用了 ExpectedException 规则:

@Rule
public ExpectedException thrown = ExpectedException.none();

...这导致了额外的问题，因为它捕获了 Mockito 的验证失败作为意外异常:

[junit] No interactions wanted here:
[junit] -> at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
[junit] But found this interaction on mock 'mockCounter':
[junit] -> at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
[junit] ***
[junit] For your reference, here is the list of all invocations ([?] - means unverified).
[junit] 1. [?]-> at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
[junit] 2. [?]-> at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
[junit] 3. -> at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
[junit]
[junit] junit.framework.AssertionFailedError:
[junit] No interactions wanted here:
[junit] But found this interaction on mock 'mockCounter':
[junit] ***
[junit] For your reference, here is the list of all invocations ([?] - means unverified).

我正在开发一个新的代码库，以前从未见过这个问题。似乎 Mockito 或 JUnit 清理堆栈跟踪过于积极或其他什么......

我可以在没有ExpectedException的情况下生活，但是在未来测试失败的情况下没有模拟调用点似乎很烦人。我怎样才能解决这个问题？我saw withSettings().verboseLogging() 的概念，但我不想始终记录调用，只有在测试失败时才记录。

Answer 1

看来 MockitoRule 是罪魁祸首。在 setUp() 方法中用 MockitoAnnotations.initMocks(this); 替换它可以完全解决问题，即使使用 ExpectedException 规则也是如此。 p>

已经fixed在 Mockito 2.x 中，但未向后移植到 1.x。