1 files changed, 138 insertions, 0 deletions
diff --git a/dom/workers/test/test_suspend.html b/dom/workers/test/test_suspend.html
new file mode 100644
index 000000000..806b97f6c
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+++ b/dom/workers/test/test_suspend.html
@@ -0,0 +1,138 @@
+<!--
+  Any copyright is dedicated to the Public Domain.
+  http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for DOM Worker Threads</title>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test">
+<iframe id="workerFrame" src="suspend_iframe.html" onload="subframeLoaded();">
+</iframe>
+<script class="testbody" type="text/javascript">
+
+  SimpleTest.waitForExplicitFinish();
+
+  var iframe;
+  var lastCount;
+
+  var suspended = false;
+  var resumed = false;
+  var finished = false;
+
+  var interval;
+  var oldMessageCount;
+  var waitCount = 0;
+
+  function finishTest() {
+    if (finished) {
+      return;
+    }
+    finished = true;
+    SpecialPowers.flushPrefEnv(function () {
+      iframe.terminateWorker();
+      SimpleTest.finish();
+    });
+  }
+
+  function waitInterval() {
+    if (finished) {
+      return;
+    }
+    is(String(iframe.location), "about:blank", "Wrong url!");
+    is(suspended, true, "Not suspended?");
+    is(resumed, false, "Already resumed?!");
+    is(lastCount, oldMessageCount, "Received a message while suspended!");
+    if (++waitCount == 5) {
+      clearInterval(interval);
+      resumed = true;
+      iframe.history.back();
+    }
+  }
+
+  function badOnloadCallback() {
+    if (finished) {
+      return;
+    }
+    ok(false, "We don't want suspend_iframe.html to fire a new load event, we want it to come out of the bfcache!");
+    finishTest();
+  }
+
+  function suspendCallback() {
+    if (finished) {
+      return;
+    }
+    is(String(iframe.location), "about:blank", "Wrong url!");
+    is(suspended, false, "Already suspended?");
+    is(resumed, false, "Already resumed?");
+    SpecialPowers.popPrefEnv(function () {
+      suspended = true;
+      var iframeElement = document.getElementById("workerFrame");
+      iframeElement.onload = badOnloadCallback;
+      oldMessageCount = lastCount;
+      interval = setInterval(waitInterval, 1000);
+    });
+  }
+
+  function messageCallback(data) {
+    if (finished) {
+      return;
+    }
+
+    if (!suspended) {
+      ok(lastCount === undefined || lastCount == data - 1,
+         "Got good data, lastCount = " + lastCount + ", data = " + data);
+      lastCount = data;
+      if (lastCount == 25) {
+        SpecialPowers.pushPrefEnv({"set": [["browser.sessionhistory.cache_subframes", true]]}, function () {
+          iframe.location = "about:blank";
+          // We want suspend_iframe.html to go into bfcache, so we need to flush
+          // out all pending notifications. Otherwise, if they're flushed too
+          // late, they could kick us out of the bfcache again.
+          iframe.document.body.offsetTop;
+        });
+      }
+      return;
+    }
+
+    var newLocation =
+      window.location.toString().replace("test_suspend.html",
+                                         "suspend_iframe.html");
+    is(newLocation.indexOf(iframe.location.toString()), 0, "Wrong url!");
+    is(resumed, true, "Got message before resumed!");
+    is(lastCount, data - 1, "Missed a message, suspend failed!");
+    finishTest();
+  }
+
+  function errorCallback(data) {
+    if (finished) {
+      return;
+    }
+    ok(false, "Iframe had an error: '" + data + "'");
+    finishTest();
+  }
+
+  function subframeLoaded() {
+    if (finished) {
+      return;
+    }
+    var iframeElement = document.getElementById("workerFrame");
+    iframeElement.onload = suspendCallback;
+
+    iframe = iframeElement.contentWindow;
+    ok(iframe, "No iframe?!");
+
+    iframe.startWorker(messageCallback, errorCallback);
+  }
+
+</script>
+</pre>
+</body>
+</html>