Bug 1619872 - Have a test to ensure EventSource works fine with invalid url in workers after shuting down; r=baku

Differential Revision: https://phabricator.services.mozilla.com/D65299 --HG-- extra : moz-landing-system : lando
2020-03-04 15:21:59 +00:00 · 2020-03-04 15:21:59 +00:00 · 5abf94982f
--- a/dom/base/crashtests/crashtests.list
+++ b/dom/base/crashtests/crashtests.list
@ -248,6 +248,7 @@ load xhr_html_nullresponse.html
 load xhr-with-pagehide-1.html
 pref(layout.css.resizeobserver.enabled,true) load 1555786.html
 load 1577191.html
+load eventSource_invalid_scheme_worker_shutdown.html
 load 1291535.html
 skip-if(!isDebugBuild||xulRuntime.OS!="Linux") load 1611853.html
 load 1619322.html
--- a/dom/base/crashtests/eventSource_invalid_scheme_worker_shutdown-worker.js
+++ b/dom/base/crashtests/eventSource_invalid_scheme_worker_shutdown-worker.js
@ -0,0 +1,4 @@
+onmessage = function(event) {
+  close();
+  let source = new EventSource(`d:`, {});
+}
--- a/dom/base/crashtests/eventSource_invalid_scheme_worker_shutdown.html
+++ b/dom/base/crashtests/eventSource_invalid_scheme_worker_shutdown.html
@ -0,0 +1,36 @@
+<html class="reftest-wait">
+    <head>
+        <script type="text/javascript">
+            const workerURL = "1614339-worker.js";
+
+            const Cc = SpecialPowers.Cc;
+            const Ci = SpecialPowers.Ci;
+            const wdm = Cc["@mozilla.org/dom/workers/workerdebuggermanager;1"]
+                          .getService(Ci.nsIWorkerDebuggerManager);
+
+            function waitForUnregister() {
+              return new Promise(function(resolve) {
+                wdm.addListener({
+                  onUnregister(dbg) {
+                    if (dbg.url !== workerURL) {
+                      return;
+                    }
+                    wdm.removeListener(this);
+                     resolve();
+                  },
+                });
+              });
+            }
+
+            function boom() {
+              const worker = new Worker(workerURL);
+              waitForUnregister().then(function() {
+                document.documentElement.classList.remove("reftest-wait");
+              });
+              worker.postMessage("Start");
+            }
+         </script>
+     </head>
+     <body onload="boom();"></body>
+</html>
+