var assert = require('assert');
var CE = require('../');

describe('CustomEvent', function () {

  describe('new CustomEvent()', function () {

    it('should create a `CustomEvent` instance', function () {
      var e = new CE('cat');

      assert.equal(e.type, 'cat');
      assert.equal(e.bubbles, false);
      assert.equal(e.cancelable, false);
      assert.equal(e.detail, undefined);
    });

    it('should create a `CustomEvent` instance with a `details` object', function () {
      var e = new CE('meow', { detail: { foo: 'bar' } });

      assert.equal(e.type, 'meow');
      assert.equal(e.bubbles, false);
      assert.equal(e.cancelable, false);
      assert.equal(e.detail.foo, 'bar');
    });

    it('should create a `CustomEvent` instance with a `bubbles` boolean', function () {
      var e = new CE('purr', { bubbles: true });

      assert.equal(e.type, 'purr');
      assert.equal(e.bubbles, true);
      assert.equal(e.cancelable, false);
      assert.equal(e.detail, undefined);
    });

    it('should create a `CustomEvent` instance with a `cancelable` boolean', function () {
      var e = new CE('scratch', { cancelable: true });

      assert.equal(e.type, 'scratch');
      assert.equal(e.bubbles, false);
      assert.equal(e.cancelable, true);
      assert.equal(e.detail, undefined);
    });

    it('should create a `CustomEvent` instance that is dispatchable', function (done) {
      var e = new CE('claw', {
        bubbles: true,
        cancelable: true,
        detail: { canhaz: 'cheeseburger' }
      });

      function onclaw (ev) {
        if (!ev) ev = window.event;
        assert.equal(e.bubbles, true);
        assert.equal(e.cancelable, true);
        assert.equal(e.detail.canhaz, 'cheeseburger');
        done();
      }

      if (document.body.dispatchEvent) {
        document.body.addEventListener('claw', onclaw, false);
        document.body.dispatchEvent(e);
      } else {
        // IE <= 8 will only allow us to fire "known" event names,
        // so we need to fire "click" instead of "claw :\
        document.body.attachEvent('onclick', onclaw);

        // need to fire event in a separate tick for some reason…
        setTimeout(function () {
          e.type = 'click';
          e.eventName = 'click';
          e.eventType = 'click';

          document.body.fireEvent('onclick', e);
        }, 50);
      }
    });

  });

});