angular-cn/packages/zone.js/test/test-util.ts

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/**
* @license
* Copyright Google Inc. 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
*/
/*
* Usage:
*
* function supportsOnClick() {
* const div = document.createElement('div');
* const clickPropDesc = Object.getOwnPropertyDescriptor(div, 'onclick');
* return !(EventTarget &&
* div instanceof EventTarget &&
* clickPropDesc && clickPropDesc.value === null);
* }
* (<any>supportsOnClick).message = 'Supports Element#onclick patching';
*
*
* ifEnvSupports(supportsOnClick, function() { ... });
*/
import {isNode, zoneSymbol} from '../lib/common/utils';
// Re-export for convenience.
export {zoneSymbol};
declare const global: any;
export function ifEnvSupports(test: any, block: Function): () => void {
return _ifEnvSupports(test, block);
}
export function ifEnvSupportsWithDone(test: any, block: Function): (done: Function) => void {
return _ifEnvSupports(test, block, true);
}
function _ifEnvSupports(test: any, block: Function, withDone = false) {
if (withDone) {
return function(done?: Function) { _runTest(test, block, done); };
} else {
return function() { _runTest(test, block, undefined); };
}
}
function _runTest(test: any, block: Function, done?: Function) {
const message = (test.message || test.name || test);
if (typeof test === 'string' ? !!global[test] : test()) {
if (done) {
block(done);
} else {
block();
}
} else {
console.log('WARNING: skipping ' + message + ' tests (missing this API)');
done && done();
}
}
export function supportPatchXHROnProperty() {
let desc = Object.getOwnPropertyDescriptor(XMLHttpRequest.prototype, 'onload');
if (!desc && (window as any)['XMLHttpRequestEventTarget']) {
desc = Object.getOwnPropertyDescriptor(global['XMLHttpRequestEventTarget'].prototype, 'onload');
}
if (!desc || !desc.configurable) {
return false;
}
return true;
}
let supportSetErrorStack = true;
export function isSupportSetErrorStack() {
try {
throw new Error('test');
} catch (err) {
try {
err.stack = 'new stack';
supportSetErrorStack = err.stack === 'new stack';
} catch (error) {
supportSetErrorStack = false;
}
}
return supportSetErrorStack;
}
(isSupportSetErrorStack as any).message = 'supportSetErrorStack';
export function asyncTest(this: unknown, testFn: Function, zone: Zone = Zone.current) {
const AsyncTestZoneSpec = (Zone as any)['AsyncTestZoneSpec'];
return (done: Function) => {
let asyncTestZone: Zone =
zone.fork(new AsyncTestZoneSpec(() => {}, (error: Error) => { fail(error); }, 'asyncTest'));
asyncTestZone.run(testFn, this, [done]);
};
}
export function getIEVersion() {
const userAgent = navigator.userAgent.toLowerCase();
if (userAgent.indexOf('msie') != -1) {
return parseInt(userAgent.split('msie')[1]);
}
return null;
}
export function isFirefox() {
const userAgent = navigator.userAgent.toLowerCase();
if (userAgent.indexOf('firefox') != -1) {
return true;
}
return false;
}
export function isSafari() {
const userAgent = navigator.userAgent.toLowerCase();
if (userAgent.indexOf('safari') != -1) {
return true;
}
return false;
}
export function isEdge() {
const userAgent = navigator.userAgent.toLowerCase();
return userAgent.indexOf('edge') !== -1;
}
export function getEdgeVersion() {
const ua = navigator.userAgent.toLowerCase();
const edge = ua.indexOf('edge/');
if (edge === -1) {
return -1;
}
return parseInt(ua.substring(edge + 5, ua.indexOf('.', edge)), 10);
}
export function isPhantomJS() {
if (isNode) {
return false;
}
const ua = navigator.userAgent.toLowerCase();
return ua.indexOf('phantomjs') !== -1;
}