karma-json-reader.js

(function(window, document, undefined) {
    'use strict';

    window.KarmaJSONReader = function(baseUrl) {
        var baseUrl = baseUrl || 'test/data/';
        
        this.setBaseUrl = function(_baseUrl_) {
            baseUrl = _baseUrl_;
        };
        
        this.readJSON = function(filename) {
            var xhr = new XMLHttpRequest();
            var json = null;
            var url = baseUrl + filename;

            xhr.open('GET', url, false);

            xhr.onload = function() {
                if (xhr.readyState === 4) {
                    if (xhr.status === 200) {
                        json = JSON.parse(xhr.responseText);
                    } else {
                        console.error('readJSON - ', url, xhr.statusText);
                    }
                }
            };

            xhr.onerror = function() {
                console.error('readJSON - ', url, xhr.statusText);
            };

            xhr.send(null);
            return json;
        };
    };
})(window, document);