60 lines
1.8 KiB
JavaScript
60 lines
1.8 KiB
JavaScript
"use strict";
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/**
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* Perform common actions before each test case, e.g. printing the test case
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* name to stdout.
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* @param {Mocha.Context} context The test context
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*/
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export function beforeEach(context) {
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const desc = context.currentTest.fullTitle();
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console.log();
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console.log(desc);
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console.log(new Array(1 + desc.length).join("="));
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// some tests store things in localstorage. Improve independence of tests
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// by making sure that they don't inherit any old state.
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window.localStorage.clear();
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}
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/**
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* returns true if the current environment supports webrtc
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*/
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export function browserSupportsWebRTC() {
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const n = global.window.navigator;
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return n.getUserMedia || n.webkitGetUserMedia ||
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n.mozGetUserMedia;
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}
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export function deleteIndexedDB(dbName) {
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return new Promise((resolve, reject) => {
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if (!window.indexedDB) {
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resolve();
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return;
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}
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const startTime = Date.now();
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console.log(`${startTime}: Removing indexeddb instance: ${dbName}`);
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const req = window.indexedDB.deleteDatabase(dbName);
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req.onblocked = () => {
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console.log(`${Date.now()}: can't yet delete indexeddb ${dbName} because it is open elsewhere`);
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};
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req.onerror = (ev) => {
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reject(new Error(
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`${Date.now()}: unable to delete indexeddb ${dbName}: ${ev.target.error}`,
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));
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};
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req.onsuccess = () => {
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const now = Date.now();
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console.log(`${now}: Removed indexeddb instance: ${dbName} in ${now-startTime} ms`);
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resolve();
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};
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}).catch((e) => {
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console.error(`${Date.now()}: Error removing indexeddb instance ${dbName}: ${e}`);
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throw e;
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});
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}
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export const sleep = (ms) => new Promise((resolve) => { setTimeout(resolve, ms); });
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