CODEWITHSUNDEEP
javascriptunit-testingjasmine
Pwnna
Pwnna

Reputation: 9528

jasmine toHaveBeenCalledWith partial matching

With Jasmine, I could spy on methods and figure out the arguments. I want to be able to call toHaveBeenCalledWith(something, anything).

Let's say I want to spy on a method .on(event, callback). All I care about is if the event is listened to rather than what the actual callback identity is. Is it possible to do this without writing a custom matcher? I don't see one.

Upvotes: 110

Views: 56218

Answers (3)

Ievgen
Ievgen

Reputation: 8086

Jasmine 2:

 expect(callback).toHaveBeenCalledWith(jasmine.objectContaining({
    bar: "baz"
  }));

https://jasmine.github.io/api/edge/jasmine.html#.objectContaining

Upvotes: 69

Cmag
Cmag

Reputation: 15750

If you wish to test for specific things, you can do something like:

expect(mockSomething.someMethod.mostRecentCall.args[0].pool.maxSockets).toEqual(50);

The syntax in Jasmine 2 is now:

mockSomething.someMethod.calls.mostRecent().args[0]

Upvotes: 27

beautifulcoder
beautifulcoder

Reputation: 11320

Try

toHaveBeenCalledWith(jasmine.any(Object), jasmine.any(Function))

Upvotes: 142

Related Questions