gecko-dev/addon-sdk/source/test/test-test-utils.js

47 строки
1.3 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
'use strict'
const { setTimeout } = require('sdk/timers');
const { waitUntil } = require('sdk/test/utils');
exports.testWaitUntil = function (assert, done) {
let bool = false;
let finished = false;
waitUntil(() => {
if (finished)
assert.fail('interval should be cleared after predicate is truthy');
return bool;
}).then(function () {
assert.ok(bool,
'waitUntil shouldn\'t call until predicate is truthy');
finished = true;
done();
});
setTimeout(() => { bool = true; }, 20);
};
exports.testWaitUntilInterval = function (assert, done) {
let bool = false;
let finished = false;
let counter = 0;
waitUntil(() => {
if (finished)
assert.fail('interval should be cleared after predicate is truthy');
counter++;
return bool;
}, 50).then(function () {
assert.ok(bool,
'waitUntil shouldn\'t call until predicate is truthy');
assert.equal(counter, 1,
'predicate should only be called once with a higher interval');
finished = true;
done();
});
setTimeout(() => { bool = true; }, 10);
};
require('sdk/test').run(exports);