Re: [Rails-devel] Mocking library chosen

[brett l. <bre...@gm...>]

I have no objections to Mockito.

One thing I'd like to see is just a central mocked data set that we
can use for exercising the code. Eventually, it would be nice to grow
our test case coverage.

---Brett.


On Wed, Jun 6, 2012 at 12:33 PM, Stefan Frey <ste...@we...> wrote:
> Erik & Brett:
> recently I have mailed that I would like to add a mock library to
> support testing. At that time I preferred JMock (mostly above EasyMock).
> However I did reevaluate my choice again and realized that the library
> that suited my tastes best is Mockito.
> see http://code.google.com/p/mockito/
>
> Checkout the documentation at
> http://docs.mockito.googlecode.com/hg/latest/org/mockito/Mockito.html
> which really shows very well the very simple but powerful style used.
>
> Or compare to the first test example which I have pushed to the rails2.0
> branch (ActionChangeTest.java) in the junit folder with the identical
> hierachy as rails below (the source code itself is under src folder).
>
> It is really easy to create mock objects by simply annotate private
> fields in the test classes with @Mock
> or directly with Player player =  mock(Player.class)
>
> Verifying that a method of the mock is called (once) requires:
> verify(mock).method()
>
> And stubbing a method of the mock is initialized with:
> when(mock.method()).thenReturn(value)
>
> Avoiding using strings also ensures that autocompletion of Eclipse-IDe
> still works.
>
> This syntactical sugar simplifies unit tests substantially (at least in
> my opinion).
>
> Stefan
>
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