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javajunitjacksonmockito

Create a JsonProcessingException

I'm trying to create a JsonProcessingException to be thrown by a mock object. 

when(mapper.writeValueAsString(any(Object.class))).thenThrow(new JsonProcessingException("Error"));

However I'm unable to create a JsonProcessingException object as all the constructors are protected. How do I get around this?

Solution

  • how about you create an anonymous exception of type JsonProcessingException 

    when(mapper.writeValueAsString(any(Object.class))).thenThrow(new JsonProcessingException("Error"){});

    The {} braces does the trick. This is much better since it is not confusing to the reader of the test code.