javascript - How do I spy on methods called from one class that exist in another class using Jasmine? -


i have method

thissvc.asyncoperation: function(id) {    return thatsvc.getbyid(id);

is possible create spy tell me if thatsvc.getbyid has been called, or design anti-pattern? afaik, spies can created on single object.

you can spy on whatever want, in jasmine tests make sure service:

var thissvc, thatsvc;  beforeeach(inject(function(_thissvc_, _thatsvc_){     thissvc = _thissvc_;     thatsvc = _thatsvc_; });  it('.asyncoperation should call thatsvc.getbyid', function(){     spyon(thatsvc, 'getbyid');     var id = 4;      thissvc.asyncoperation(id);      expect(thatsvc.getbyid).tohavebeencalledwith(id); })

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