CODEWITHSUNDEEP
jasmine
zavr
zavr

Reputation: 2149

Jasmine test context of a spy

I have a jasmine spy installed on a method, which is called like 

if(typeof method === 'function'){
  var context = {a:'b'};
  method.call(context);
}

so that when the method is called, the this keyword inside it will be context. How do I test the context of the spy with Jasmine?

Upvotes: 1

Views: 634

Answers (2)

Alexey Kucherenko
Alexey Kucherenko

Reputation: 904

I like the Koen's answer but I decided to do it more elegant way using custom matchers. Here is the lib https://www.npmjs.com/package/jasmine-spy-matchers

Using this lib you can do the following:

expect(method).toHaveBeenCalledWithContext(context);

Upvotes: 0

Raymundus
Raymundus

Reputation: 2472

The calling context is in the object property of each calls object.

So given

var method = jasmine.createSpy();
var context = {a:'b'};
method.call(context);

You can test the calling context of your spied method like this:

mostRecentCall = method.calls.mostRecent();
expect(mostRecentCall.object).toEqual(context);

Check here for more examples in the jasmine docs.

Upvotes: 2

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