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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=657791
+-->
+<head>
+  <title>Test for Bug 657791</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="text/javascript" src="manifest.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=657791">Mozilla Bug 657791</a>
+
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+// Subset of seek tests for cueless WebMs. When random seeking (rather than just
+// in buffered ranges) is implemented for WebM, these tests can be removed and
+// the cueless WebM(s) references can be moved to the general test_seek test
+// array.
+// Test array is defined in manifest.js
+
+var manager = new MediaTestManager;
+
+// Exercise functionality as in test_seek-3
+function testWebM3(e) {
+  var v = e.target;
+  v.removeEventListener('loadeddata', testWebM3);
+
+  var completed = false;
+  var gotTimeupdate = false;
+
+  ok(v.buffered.length >= 1, "Should have a buffered range");
+  var halfBuffered = v.buffered.end(0) / 2;
+
+  function start() {
+    if (completed)
+      return;
+
+    is(v.seekable.start(0), v.buffered.start(0), "Seekable start should be buffered start");
+    is(v.seekable.end(0), v.buffered.end(0), "Seekable end should be buffered end");
+    v.currentTime=halfBuffered;
+  }
+
+  function timeupdate() {
+    gotTimeupdate = true;
+    v.removeEventListener("timeupdate", timeupdate);
+  }
+
+  function seekStarted() {
+    if (completed)
+      return;
+
+    v.addEventListener("timeupdate", timeupdate);
+  }
+
+  function seekEnded() {
+    if (completed)
+      return;
+
+    var t = v.currentTime;
+    ok(Math.abs(t - halfBuffered) <= 0.1, "Video currentTime should be around " + halfBuffered + ": " + t);
+    ok(gotTimeupdate, "Should have got timeupdate between seeking and seekended");
+    completed = true;
+    removeNodeAndSource(v);
+    manager.finished(v._token);
+  }
+
+  v.addEventListener("seeking", seekStarted);
+  v.addEventListener("seeked", seekEnded);
+
+  start()
+}
+
+// Fetch the media resource using XHR so we can be sure the entire
+// resource is loaded before we test buffered ranges. This ensures
+// we have deterministic behaviour.
+function fetch(url, fetched_callback) {
+  var xhr = new XMLHttpRequest();
+  xhr.open("GET", url, true);
+  xhr.responseType = "blob";
+
+  var loaded = function (event) {
+    if (xhr.status == 200 || xhr.status == 206) {
+      // Request fulfilled. Note sometimes we get 206... Presumably because either
+      // httpd.js or Necko cached the result.
+      fetched_callback(window.URL.createObjectURL(xhr.response));
+    } else {
+      ok(false, "Fetch failed headers=" + xhr.getAllResponseHeaders());
+    }
+  };
+
+  xhr.addEventListener("load", loaded);
+  xhr.send();
+}
+
+function startTest(test, token) {
+  var onfetched = function(uri) {
+    var v = document.createElement('video');
+    v._token = token;
+    v.src = uri;
+    v.addEventListener("loadeddata", testWebM3);
+    document.body.appendChild(v);
+  }
+  manager.started(token);
+  fetch(test.name, onfetched);
+}
+
+SimpleTest.waitForExplicitFinish();
+manager.runTests(gCuelessWebMTests, startTest);
+
+</script>
+</pre>
+</body>
+</html>