Miss Dada  🏳️‍⚧️

Mocks are interesting, but verifying that methods were called on the mock seems like testing side effects rather than behavior.

@tenderlove Sometimes the behavior of an object is the side effects it has.

@sgrif sure, but ensuring a method was called doesn't guarantee the side effect occurred. Test that the side effect happened.

@tenderlove What if the side effect is charging a credit card?

@sgrif @tenderlove you can build a substitute for this.

@realntl That is just a DIY mock

@sgrif not really, imo. You pass in a substitute to the test subject, which is entirely oblivious as to whether it hits a payment gateway.

@realntl Same with a test double (aka a mock)? You're passing in a fake object to stand in for the real one, and asserting the side effect