Mocking a public field

[Logdog82]

Hi @ll,

how can I mock public fields? Example:

when(mockFoo.myField).thenReturn("bar");

Mockito gave me an Exception with the message "when() requires an argument which has to be 'a method call on a mock'". The problem is that I have no acess to the mocked interface (so I could change the field to a get method) because it's in a external library.

Thanks.

[Brice Dutheil]

Hi,

Hmm I'm not sure what you really trying to do. But you cannot mock fields.

If it's *legacy* code, I would create a package protected method in your code that read the interface field. And in your test code, stub that method.

Something like:

ProductionCode implements ThirdPartyInterface {

// ...

  public void theMethodThatDosBusinessStuff() {

    // ...

    String thing = readThirdPartyInterfaceField();

  }

  String readThirdPartyInterfaceField() {

    return ThirdPartyInterface.theThing;

  }

}

ProductionCodeTest {

  public void my_code_should_do_the_following() {

    // given

    ProductionCode pcMock = mock(ProductionCode.class);

    given(pcMock.readThirdPartyInterfaceField()).willReturn("something else");

    // when

    // then

  }

}

Hope that helps,

-- 

Bryce

--
You received this message because you are subscribed to the Google Groups "mockito" group.
To post to this group, send email to moc...@googlegroups.com.
To unsubscribe from this group, send email to mockito+u...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/mockito?hl=en.

[Logdog82]

Hi,

thanks for your post. I will try it.

[Brice Dutheil]

Hi,

You're welcome.

As a reminder, you should only mock, types that you own, not type in third party library.

-- 

Bryce

On Fri, May 13, 2011 at 15:36, Logdog82 <logd...@gmail.com> wrote:

Hi,

thanks for your post. I will try it.

--

[David W]

Why can't you just write
mockFoo.myField = "bar";

After all, a mocked object is still a member of the original class, so
it has the same public fields. It's only the methods that get
overridden.

Cheers,
David.