angular-cn/packages/zone.js/test/browser/messageport.spec.ts

50 lines
1.4 KiB
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/**
* Test MessagePort monkey patch.
*/
describe('MessagePort onproperties', () => {
let iframe: any;
beforeEach(() => {
iframe = document.createElement('iframe');
const html = `<body>
<script>
window.addEventListener('message', onMessage);
function onMessage(e) {
// Use the transfered port to post a message back to the main frame
e.ports[0].postMessage('Message back from the IFrame');
}
</script>
</body>`;
iframe.src = 'data:text/html;charset=utf-8,' + encodeURI(html);
});
afterEach(() => {
if (iframe) {
document.body.removeChild(iframe);
}
});
it('onmessge should in the zone', (done) => {
const channel = new MessageChannel();
const zone = Zone.current.fork({name: 'zone'});
iframe.onload = function() {
zone.run(() => {
channel.port1.onmessage = function() {
expect(Zone.current.name).toBe(zone.name);
done();
};
Zone.current.fork({name: 'zone1'}).run(() => {
iframe.contentWindow.postMessage('Hello from the main page!', '*', [channel.port2]);
});
});
};
document.body.appendChild(iframe);
});
});