Support an equivalent to Mockito session

[antoine-mulet]

👋 Hi, would it be possible and desirable to support an equivalent to MockitoSession?

Of course there's already the verification confirmation in MockK but having to write all the verify manually often adds boilerplate to tests in my opinion. Re-using the code displayed in verification confirmation, I would love to simply write

val car = mockk<Car>()

every { car.drive(Direction.NORTH) } returns Outcome.OK
every { car.drive(Direction.SOUTH) } returns Outcome.OK

car.drive(Direction.NORTH) // returns OK
car.drive(Direction.SOUTH) // returns OK

and the following part would be sort of implicit

verify {
    car.drive(Direction.SOUTH)
    car.drive(Direction.NORTH)
}

confirmVerified(car) // makes sure all calls were covered with verification

I think it would be a great addition to MockK to help driving cleaner tests by eliminating boilerplate code. What do you think?

[Raibaz]

Perhaps this is similar to what you are referring to?

[antoine-mulet]

@Raibaz Thanks for replying so quickly. Actually you're right. Given that MockK already gives a nice exception when a mock is called with incorrect arguments (e.g.no answer found for: Foo(#1).doSomething(42)) without having to verify it explicitly, the only thing that is missing compared to when using MockitoSession is checking for unnecessary stubs.

Automatic unnecessary stubbing check is a great feature! I am looking forward to migrating test code from Mockito to MockK now I understand MockK a bit better. Thanks!

[Raibaz]

Unnecessary stubbing check was actually added pretty recently exactly for that need :)

Glad it helps.