Jasmine 2.0 SO answer

Jasmine 2.0 using spyOn

HTML

<script src="https://jasmine.github.io/2.2/lib/jasmine.js"></script>
<script src="https://jasmine.github.io/2.2/lib/jasmine-html.js"></script>
<script src="https://jasmine.github.io/2.2/lib/boot.js"></script>
<link rel="stylesheet" href="https://jasmine.github.io/2.2/lib/jasmine.css">

JavaScript

// Source
var queryServer = {
    getJsonServerNine: function () {
        'use strict';

        $.getJSON(queryServer.url, function (simpleJson) {
            // parseResponse(simpleJson);
            console.log(simpleJson)
            queryServer.queryResult = simpleJson[Object.keys(simpleJson)[0]];
        }).fail(function (error) {
            console.log(error.statusText);
        });

    }
}

// Test
describe('foo', function () {
    it("tests getJSON call", function () {
        spyOn($, 'getJSON').and.callFake(function (url, success) {
            success({
                "nine": 10
            });
            return {
                fail: function() {}
            }
        });
        queryServer.getJsonServerNine();
        expect(queryServer.queryResult).toBe(9);
    });
});