Fix undefined forEach error in tiny test

packages/ddp-server/stream_server.js

@@ -1,5 +1,3 @@
-var url = Npm.require('url');
-
 // By default, we use the permessage-deflate extension with default
 // configuration. If $SERVER_WEBSOCKET_COMPRESSION is set, then it must be valid
 // JSON. If it represents a falsey value, then we do not use permessage-deflate
@@ -154,7 +152,7 @@ Object.assign(StreamServer.prototype, {
     // (meaning prior to any connect middlewares) so we need to take
     // an approach similar to overshadowListeners in
     // https://github.com/sockjs/sockjs-node/blob/cf820c55af6a9953e16558555a31decea554f70e/src/utils.coffee
-    ['request', 'upgrade'].forEach(function(event) {
+    ['request', 'upgrade'].forEach((event) => {
       var httpServer = WebApp.httpServer;
       var oldHttpServerListeners = httpServer.listeners(event).slice(0);
       httpServer.removeAllListeners(event);
@@ -165,6 +163,9 @@ Object.assign(StreamServer.prototype, {
         // Store arguments for use within the closure below
         var args = arguments;
 
+        // TODO replace with url package
+        var url = Npm.require('url');
+
         // Rewrite /websocket and /websocket/ urls to /sockjs/websocket while
         // preserving query string.
         var parsedUrl = url.parse(request.url);

packages/tinytest/tinytest_server.js

@@ -81,7 +81,7 @@ Meteor.methods({
   'tinytest/clearResults'(runId) {
     check(runId, String);
 
-    handlesForRun.get(runId).forEach(handle => {
+    handlesForRun.get(runId)?.forEach(handle => {
       // XXX this doesn't actually notify the client that it has been
       // unsubscribed.
       handle.stop();