how to unit test contents of a callback function with sinon.js
13,528
callsArgWith(0, dataMock)
does the trick:
http://jsfiddle.net/ruslans/3UtdF/
var target,
serviceStub,
dataMock = [0];
module("model tests", {
setup: function () {
serviceStub = new service();
sinon.stub(serviceStub);
serviceStub.getData.callsArgWith(0, dataMock);
target = new model(serviceStub);
},
teardown: function () {
serviceStub.getData.restore();
}
});
test("data is populated after service.getData callback", function () {
target.init();
equal(target.data, dataMock);
});
Author by
Ruslan
Updated on June 27, 2022Comments
-
Ruslan almost 2 years
how does one test a code inside a callback function using
sinon.js
framework for mocking?JSFiddle: http://jsfiddle.net/ruslans/CE5e2/
var service = function () { return { getData: function (callback) { return callback([1, 2, 3, 4, 5]); } } }; var model = function (svc) { return { data: [], init: function () { var self = this; svc.getData(function (serviceData) { self.data = serviceData; // *** test this line *** }); } } };
I use mocha tests with chai but am familiar with qUnit, so any of these tests would be accepted.