How test ajax with karma?

Webix JS
1

When I run this test:

describe("Smoke process request tests", function () {
   "use strict";

    it("should echo the test request with response", function () {
        var test = { act: 'test', qry: {} };

        webix.ajax().post("http://localhost:3000/request", JSON.stringify(test))
        .then(function (resp) {
            expect(resp.json().requests.find(function (el) {
                console.log(el);
                return el.action === 'test';
            })).to.eql(test);
            done();
        }).fail(function (errs) {
            throw(errs);
       });
    });
});

the then or fail functions are never called. When I perform webix.ajax().sync() then I get an error.

How can I test ajax actions using Karma?

2

Am a bit further:

this works in the sense that the fail function is called:

it("should echo the test request with response", function (done) {
    var test = { act: 'test', qry: {} };

    var promise = webix.ajax().post("http://localhost:3000/request", JSON.stringify(test));

    promise.then(function (resp) {
        console.log('resp', app.util.inspect(resp));
        done();
    }).fail(function (err) {
        console.log('err', app.util.inspect(promise));
        throw(promise.state);
    });

Exactly, the same code run directly in my browser, does result in a success and returns exactly what is expected.

3

Not quite sure about how Karma handles ajax call, but it can be a cross-domain call issue. If a main document of Karma was loaded from another domain or another port, all ajax calls to different domains will fail.

4

Thanks, it was a cross domain issue, karma uses its own server that serves the client but the backend server in that case is in a different domain. Adding the CORS headers solved the issue. Thanks for the response.