jsPsych/tests/plugins/plugin-maxdiff.test.js
2020-10-23 11:05:13 +08:00

40 lines
992 B
JavaScript

const root = '../../';
const utils = require('../testing-utils.js');
jest.useFakeTimers();
describe('maxdiff plugin', function(){
beforeEach(function(){
require(root + 'jspsych.js');
require(root + 'plugins/jspsych-maxdiff.js');
});
test('loads correctly', function(){
expect(typeof window.jsPsych.plugins['maxdiff']).not.toBe('undefined');
});
test('returns appropriate response with randomization', function(){
var trial = {
type: 'maxdiff',
alternatives: ['a', 'b', 'c', 'd'],
labels: ['Most', 'Least'],
randomize_alternative_order: true
}
jsPsych.init({
timeline: [trial]
});
document.querySelector('input[data-name="0"][name="left"]').checked = true;
document.querySelector('input[data-name="1"][name="right"]').checked = true;
utils.clickTarget(document.querySelector('#jspsych-maxdiff-next'));
var maxdiff_data = jsPsych.data.get().values()[0];
expect(maxdiff_data.left).toBe("a");
expect(maxdiff_data.right).toBe("b");
});
});