問(wèn)題描述
我正在使用 Mockito.我想在調(diào)用未存根的方法時(shí)拋出 RuntimeException.
I'm using Mockito. I want to throw a RuntimeException when an unstubbed method is called.
有什么辦法嗎?
推薦答案
您可以為模擬設(shè)置默認(rèn)答案.所有未存根的方法都將使用此默認(rèn)答案.
You can set a default answer for a mock. All methods that aren't stubbed will use this default answer.
public void testUnstubbedException() {
// Create a mock with all methods throwing a RuntimeException by default
SomeClass someClass = mock( SomeClass .class, new RuntimeExceptionAnswer() );
doReturn(1).when(someClass).getId(); // Must use doReturn
int id = someClass.getId(); // Will return 1
someClass.unstubbedMethod(); // Will throw RuntimeException
}
public static class RuntimeExceptionAnswer implements Answer<Object> {
public Object answer( InvocationOnMock invocation ) throws Throwable {
throw new RuntimeException ( invocation.getMethod().getName() + " is not stubbed" );
}
}
請(qǐng)注意，您不能將 when 與此功能一起使用，因?yàn)樵摲椒ㄔ?when 之前調(diào)用(mockito when() 調(diào)用如何工作?)，它會(huì)在之前拋出 RuntimeException模擬進(jìn)入存根模式.
Note that you cannot use when with this functionality, since the method is called before when (How does mockito when() invocation work?) and it will throw a RuntimeException before the mock goes into stubbing mode.
因此，您必須使用 doReturn 才能使其工作.
Therefore, you must use doReturn for this to work.
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