Buster.js test helper

config.js

var config = exports;

// Then add `testHelpers` to the config to include it:
config["Browser tests"] = {
    // Your own custom config here....
    // ...
    
    // Expose the resources so we can fetch them with ajax
    // Bad practice to use it as generic as this?
    resources: [
        "**/*.*"
    ],
    testHelpers: ["helper.js"]
};

helper.js

/**
 * Fetch resources and attach it to the object
 *
 * @param {Object} object the object to attach the response to
 * @param {Object} resources key, value pairs of key/name and url
 */
function fetch(object, resources) {
    var deferreds = [];

    $.each(resources, function (key, url) {
        var deferred = when.defer();
        deferreds.push(deferred.promise);

        $.get(url, function (response) {
            object[key] = response;
            deferred.resolve();
        });
    });

    return when.all(deferreds);
}

test.js

buster.testCase("A test case", {
    setUp: function () {
        return fetch(this, {
            'json': './test/_files/data.json',
            'document': './test/_files/document.html'
        });
    },

    "a test": function () {
        assert(this.json);
        assert(this.document);
    }

});