初始化

client/test/testutils.js

@@ -0,0 +1,39 @@
+import process from "process";
+
+export function waitFor(conditionFunction) {
+
+  const poll = resolve => {
+    if (conditionFunction()) resolve();
+    else setTimeout(() => poll(resolve), 100);
+  };
+
+  return new Promise(poll);
+}
+
+export async function sleep(milisecond) {
+  return new Promise(resolve => setTimeout(resolve, milisecond));
+}
+
+export function serverExeName() {
+  switch (process.platform) {
+    case 'win32':
+      return 'webserver.exe';
+    case 'darwin':
+      return 'webserver_mac';
+    case 'linux':
+      return 'webserver';
+    default:
+      return null;
+  }
+}
+
+export function getUniqueId() {
+  return new Date().getTime().toString(16) + Math.floor(1000 * Math.random()).toString(16);
+}
+
+export function getRTCConfiguration() {
+  let config = {};
+  config.sdpSemantics = 'unified-plan';
+  config.iceServers = [{ urls: ['stun:stun.l.google.com:19302'] }];
+  return config;
+}