Can Mockito stub a method without regard to the argument?

Question

I'm trying to test some legacy code, using Mockito. I want to stub a FooDao that is used in production as follows:

foo = fooDao.getBar(new Bazoo());

I can write:

when(fooDao.getBar(new Bazoo())).thenReturn(myFoo);

But the obvious problem is that getBar() is never called with the same Bazoo object that I stubbed the method for. (Curse that new operator!) I would love it if I could stub the method in a way that it returns myFoo regardless of the argument. Failing that, I'll listen to other workaround suggestions, but I'd really like to avoid changing the production code until there is reasonable test coverage

Answer 1

when(

fooDao.getBar(

any(Bazoo.class)

)

).thenReturn(myFoo);

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instead (to withdraw nulls):

when(

fooDao.getBar(

(Bazoo)notNull()

)

).thenReturn(myFoo);

Don't neglect to carry equals (several others are possible):

For Mockito 2.1.0 and later:

import static org.mockito.ArgumentMatchers.*;

For more traditional versions:

import static org.mockito.Matchers.*;