Freewind Freewind - 1 year ago 147
Scala Question

How to mock some methods only throw exception for the first time and then do nothing, with specs2?

In specs2, we can mock a method and let it throw exception:

class Hello {
def say():Unit = println("Hello, world")

val hello = mock[Hello]
hello.say() throws new RuntimeException("something wrong")

But how to make it just throw the first time, and then always do nothing?

Answer Source

This is actually a mockito question, not a specs2 one. From the mockito documentation:

when(mock.someMethod("some arg"))
   .thenThrow(new RuntimeException())

Alternative, shorter version of consecutive stubbing:

 when(mock.someMethod("some arg"))
   .thenReturn("one", "two", "three");
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