Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

31 files changed, 1758 insertions, 0 deletions

diff --git a/dom/media/webspeech/synth/test/common.js b/dom/media/webspeech/synth/test/common.js
new file mode 100644
index 0000000000..0442570153
--- /dev/null
+++ b/dom/media/webspeech/synth/test/common.js
@@ -0,0 +1,104 @@
+function synthTestQueue(aTestArgs, aEndFunc) {
+  var utterances = [];
+  for (var i in aTestArgs) {
+    var uargs = aTestArgs[i][0];
+    var win = uargs.win || window;
+    var u = new win.SpeechSynthesisUtterance(uargs.text);
+
+    if (uargs.args) {
+      for (var attr in uargs.args) {
+        u[attr] = uargs.args[attr];
+      }
+    }
+
+    function onend_handler(e) {
+      is(e.target, utterances.shift(), "Target matches utterances");
+      ok(!speechSynthesis.speaking, "speechSynthesis is not speaking.");
+
+      if (utterances.length) {
+        ok(speechSynthesis.pending, "other utterances queued");
+      } else {
+        ok(!speechSynthesis.pending, "queue is empty, nothing pending.");
+        if (aEndFunc) {
+          aEndFunc();
+        }
+      }
+    }
+
+    u.addEventListener(
+      "start",
+      (function(expectedUri) {
+        return function(e) {
+          if (expectedUri) {
+            var chosenVoice = SpecialPowers.wrap(e).target.chosenVoiceURI;
+            is(chosenVoice, expectedUri, "Incorrect URI is used");
+          }
+        };
+      })(aTestArgs[i][1] ? aTestArgs[i][1].uri : null)
+    );
+
+    u.addEventListener("end", onend_handler);
+    u.addEventListener("error", onend_handler);
+
+    u.addEventListener(
+      "error",
+      (function(expectedError) {
+        return function onerror_handler(e) {
+          ok(
+            expectedError,
+            "Error in speech utterance '" + e.target.text + "'"
+          );
+        };
+      })(aTestArgs[i][1] ? aTestArgs[i][1].err : false)
+    );
+
+    utterances.push(u);
+    win.speechSynthesis.speak(u);
+  }
+
+  ok(!speechSynthesis.speaking, "speechSynthesis is not speaking yet.");
+  ok(speechSynthesis.pending, "speechSynthesis has an utterance queued.");
+}
+
+function loadFrame(frameId) {
+  return new Promise(function(resolve, reject) {
+    var frame = document.getElementById(frameId);
+    frame.addEventListener("load", function(e) {
+      frame.contentWindow.document.title = frameId;
+      resolve(frame);
+    });
+    frame.src = "about:blank";
+  });
+}
+
+function waitForVoices(win) {
+  return new Promise(resolve => {
+    function resolver() {
+      if (win.speechSynthesis.getVoices().length) {
+        win.speechSynthesis.removeEventListener("voiceschanged", resolver);
+        resolve();
+      }
+    }
+
+    win.speechSynthesis.addEventListener("voiceschanged", resolver);
+    resolver();
+  });
+}
+
+function loadSpeechTest(fileName, prefs, frameId = "testFrame") {
+  loadFrame(frameId).then(frame => {
+    waitForVoices(frame.contentWindow).then(
+      () => (document.getElementById("testFrame").src = fileName)
+    );
+  });
+}
+
+function testSynthState(win, expectedState) {
+  for (var attr in expectedState) {
+    is(
+      win.speechSynthesis[attr],
+      expectedState[attr],
+      win.document.title + ": '" + attr + '" does not match'
+    );
+  }
+}
diff --git a/dom/media/webspeech/synth/test/components.conf b/dom/media/webspeech/synth/test/components.conf
new file mode 100644
index 0000000000..f37e4eafae
--- /dev/null
+++ b/dom/media/webspeech/synth/test/components.conf
@@ -0,0 +1,17 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+Classes = [
+    {
+        'cid': '{e7d52d9e-c148-47d8-ab2a-95d7f40ea53d}',
+        'contract_ids': ['@mozilla.org/fakesynth;1'],
+        'singleton': True,
+        'type': 'mozilla::dom::nsFakeSynthServices',
+        'headers': ['/dom/media/webspeech/synth/test/nsFakeSynthServices.h'],
+        'constructor': 'mozilla::dom::nsFakeSynthServices::GetInstanceForService',
+        'categories': {'speech-synth-started': 'Fake Speech Synth'},
+    },
+]
diff --git a/dom/media/webspeech/synth/test/file_bfcache_page1.html b/dom/media/webspeech/synth/test/file_bfcache_page1.html
new file mode 100644
index 0000000000..d6229eeeda
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_bfcache_page1.html
@@ -0,0 +1,18 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <script type="application/javascript">
+    addEventListener('pageshow', function onshow(evt) {
+      var u = new SpeechSynthesisUtterance('hello');
+      u.lang = 'it-IT-noend';
+      u.addEventListener('start', function() {
+        location = "file_bfcache_page2.html";
+      });
+      speechSynthesis.speak(u);
+    });
+  </script>
+</head>
+<body>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_bfcache_page2.html b/dom/media/webspeech/synth/test/file_bfcache_page2.html
new file mode 100644
index 0000000000..30b9aa9117
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_bfcache_page2.html
@@ -0,0 +1,14 @@
+<html>
+<script>
+var frameUnloaded = function() {
+  var u = new SpeechSynthesisUtterance('hi');
+  u.addEventListener('end', function () {
+    opener.ok(true, 'Successfully spoke utterance from new frame.');
+    opener.onDone();
+  });
+  speechSynthesis.speak(u);
+};
+</script>
+
+<body onpageshow="frameUnloaded()"></body></html>
+
diff --git a/dom/media/webspeech/synth/test/file_global_queue.html b/dom/media/webspeech/synth/test/file_global_queue.html
new file mode 100644
index 0000000000..5d762c0d51
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_global_queue.html
@@ -0,0 +1,69 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1188099
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1188099: Global queue should correctly schedule utterances</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+    window.todo = parent.todo;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188099">Mozilla Bug 1188099</a>
+<iframe id="frame1"></iframe>
+<iframe id="frame2"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+  Promise.all([loadFrame('frame1'), loadFrame('frame2')]).then(function ([frame1, frame2]) {
+    var win1 = frame1.contentWindow;
+    var win2 = frame2.contentWindow;
+    var utterance1 = new win1.SpeechSynthesisUtterance("hello, losers");
+    var utterance2 = new win1.SpeechSynthesisUtterance("hello, losers three");
+    var utterance3 = new win2.SpeechSynthesisUtterance("hello, losers too");
+    var eventOrder = ['start1', 'end1', 'start3', 'end3', 'start2', 'end2'];
+    utterance1.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start1', 'start1');
+      testSynthState(win1, { speaking: true, pending: true });
+      testSynthState(win2, { speaking: true, pending: true });
+    });
+    utterance1.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end1', 'end1');
+    });
+    utterance3.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start3', 'start3');
+      testSynthState(win1, { speaking: true, pending: true });
+      testSynthState(win2, { speaking: true, pending: false });
+    });
+    utterance3.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end3', 'end3');
+    });
+    utterance2.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start2', 'start2');
+      testSynthState(win1, { speaking: true, pending: false });
+      testSynthState(win2, { speaking: true, pending: false });
+    });
+    utterance2.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end2', 'end2');
+      testSynthState(win1, { speaking: false, pending: false });
+      testSynthState(win2, { speaking: false, pending: false });
+      SimpleTest.finish();
+    });
+    win1.speechSynthesis.speak(utterance1);
+    win1.speechSynthesis.speak(utterance2);
+    win2.speechSynthesis.speak(utterance3);
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_global_queue_cancel.html b/dom/media/webspeech/synth/test/file_global_queue_cancel.html
new file mode 100644
index 0000000000..03b77ba2fc
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_global_queue_cancel.html
@@ -0,0 +1,88 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1188099
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1188099: Calling cancel() should work correctly with global queue</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+    window.todo = parent.todo;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188099">Mozilla Bug 1188099</a>
+<iframe id="frame1"></iframe>
+<iframe id="frame2"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+  Promise.all([loadFrame('frame1'), loadFrame('frame2')]).then(function ([frame1, frame2]) {
+    var win1 = frame1.contentWindow;
+    var win2 = frame2.contentWindow;
+
+    var utterance1 = new win1.SpeechSynthesisUtterance(
+      "u1: Donec ac nunc feugiat, posuere");
+    utterance1.lang = 'it-IT-noend';
+    var utterance2 = new win1.SpeechSynthesisUtterance("u2: hello, losers too");
+    utterance2.lang = 'it-IT-noend';
+    var utterance3 = new win1.SpeechSynthesisUtterance("u3: hello, losers three");
+
+    var utterance4 = new win2.SpeechSynthesisUtterance("u4: hello, losers same!");
+    utterance4.lang = 'it-IT-noend';
+    var utterance5 = new win2.SpeechSynthesisUtterance("u5: hello, losers too");
+    utterance5.lang = 'it-IT-noend';
+
+    var eventOrder = ['start1', 'end1', 'start2', 'end2'];
+    utterance1.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start1', 'start1');
+      testSynthState(win1, { speaking: true, pending: true });
+      testSynthState(win2, { speaking: true, pending: true });
+      win2.speechSynthesis.cancel();
+      SpecialPowers.wrap(win1.speechSynthesis).forceEnd();
+
+    });
+    utterance1.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end1', 'end1');
+      testSynthState(win1, { pending: true });
+      testSynthState(win2, { pending: false });
+    });
+    utterance2.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start2', 'start2');
+      testSynthState(win1, { speaking: true, pending: true });
+      testSynthState(win2, { speaking: true, pending: false });
+      win1.speechSynthesis.cancel();
+    });
+    utterance2.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end2', 'end2');
+      testSynthState(win1, { speaking: false, pending: false });
+      testSynthState(win2, { speaking: false, pending: false });
+      SimpleTest.finish();
+    });
+
+    function wrongUtterance(e) {
+      ok(false, 'This shall not be uttered: "' + e.target.text + '"');
+    }
+
+    utterance3.addEventListener('start', wrongUtterance);
+    utterance4.addEventListener('start', wrongUtterance);
+    utterance5.addEventListener('start', wrongUtterance);
+
+    win1.speechSynthesis.speak(utterance1);
+    win1.speechSynthesis.speak(utterance2);
+    win1.speechSynthesis.speak(utterance3);
+    win2.speechSynthesis.speak(utterance4);
+    win2.speechSynthesis.speak(utterance5);
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_global_queue_pause.html b/dom/media/webspeech/synth/test/file_global_queue_pause.html
new file mode 100644
index 0000000000..e345eb4c98
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_global_queue_pause.html
@@ -0,0 +1,130 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1188099
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1188099: Calling pause() should work correctly with global queue</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+    window.todo = parent.todo;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188099">Mozilla Bug 1188099</a>
+<iframe id="frame1"></iframe>
+<iframe id="frame2"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+  Promise.all([loadFrame('frame1'), loadFrame('frame2')]).then(function ([frame1, frame2]) {
+    var win1 = frame1.contentWindow;
+    var win2 = frame2.contentWindow;
+
+    var utterance1 = new win1.SpeechSynthesisUtterance("Speak utterance 1.");
+    utterance1.lang = 'it-IT-noend';
+    var utterance2 = new win2.SpeechSynthesisUtterance("Speak utterance 2.");
+    var utterance3 = new win1.SpeechSynthesisUtterance("Speak utterance 3.");
+    var utterance4 = new win2.SpeechSynthesisUtterance("Speak utterance 4.");
+    var eventOrder = ['start1', 'pause1', 'resume1', 'end1', 'start2', 'end2',
+      'start4', 'end4', 'start3', 'end3'];
+
+    utterance1.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start1', 'start1');
+      win1.speechSynthesis.pause();
+    });
+    utterance1.addEventListener('pause', function(e) {
+      var expectedEvent = eventOrder.shift()
+      is(expectedEvent, 'pause1', 'pause1');
+      testSynthState(win1, { speaking: true, pending: false, paused: true});
+      testSynthState(win2, { speaking: true, pending: true, paused: false});
+
+      if (expectedEvent == 'pause1') {
+        win1.speechSynthesis.resume();
+      }
+    });
+    utterance1.addEventListener('resume', function(e) {
+      is(eventOrder.shift(), 'resume1', 'resume1');
+      testSynthState(win1, { speaking: true, pending: false, paused: false});
+      testSynthState(win2, { speaking: true, pending: true, paused: false});
+
+      win2.speechSynthesis.pause();
+
+      testSynthState(win1, { speaking: true, pending: false, paused: false});
+      testSynthState(win2, { speaking: true, pending: true, paused: true });
+
+      // We now make the utterance end.
+      SpecialPowers.wrap(win1.speechSynthesis).forceEnd();
+    });
+    utterance1.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end1', 'end1');
+      testSynthState(win1, { speaking: false, pending: false, paused: false});
+      testSynthState(win2, { speaking: false, pending: true, paused: true});
+
+      win2.speechSynthesis.resume();
+    });
+
+    utterance2.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start2', 'start2');
+      testSynthState(win1, { speaking: true, pending: false, paused: false});
+      testSynthState(win2, { speaking: true, pending: false, paused: false});
+    });
+    utterance2.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end2', 'end2');
+      testSynthState(win1, { speaking: false, pending: false, paused: false});
+      testSynthState(win2, { speaking: false, pending: false, paused: false});
+
+      win1.speechSynthesis.pause();
+
+      testSynthState(win1, { speaking: false, pending: false, paused: true});
+      testSynthState(win2, { speaking: false, pending: false, paused: false});
+
+      win1.speechSynthesis.speak(utterance3);
+      win2.speechSynthesis.speak(utterance4);
+
+      testSynthState(win1, { speaking: false, pending: true, paused: true});
+      testSynthState(win2, { speaking: false, pending: true, paused: false});
+    });
+
+    utterance4.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start4', 'start4');
+      testSynthState(win1, { speaking: true, pending: true, paused: true});
+      testSynthState(win2, { speaking: true, pending: false, paused: false});
+
+      win1.speechSynthesis.resume();
+    });
+    utterance4.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end4', 'end4');
+      testSynthState(win1, { speaking: false, pending: true, paused: false});
+      testSynthState(win2, { speaking: false, pending: false, paused: false});
+    });
+
+    utterance3.addEventListener('start', function(e) {
+      is(eventOrder.shift(), 'start3', 'start3');
+      testSynthState(win1, { speaking: true, pending: false, paused: false});
+      testSynthState(win2, { speaking: true, pending: false, paused: false});
+    });
+
+    utterance3.addEventListener('end', function(e) {
+      is(eventOrder.shift(), 'end3', 'end3');
+      testSynthState(win1, { speaking: false, pending: false, paused: false});
+      testSynthState(win2, { speaking: false, pending: false, paused: false});
+
+      SimpleTest.finish();
+    });
+
+    win1.speechSynthesis.speak(utterance1);
+    win2.speechSynthesis.speak(utterance2);
+  });
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_indirect_service_events.html b/dom/media/webspeech/synth/test/file_indirect_service_events.html
new file mode 100644
index 0000000000..5ed7812757
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_indirect_service_events.html
@@ -0,0 +1,102 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1155034
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1155034: Check that indirect audio services dispatch their own events</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1155034">Mozilla Bug 1155034</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1155034 **/
+
+function testFunc(done_cb) {
+  function test_with_events() {
+    info('test_with_events');
+    var utterance = new SpeechSynthesisUtterance("never end, callback events");
+    utterance.lang = 'it-IT-noend';
+
+    utterance.addEventListener('start', function(e) {
+      info('start test_with_events');
+      speechSynthesis.pause();
+    // Wait to see if we get some bad events we didn't expect.
+    });
+
+    utterance.addEventListener('pause', function(e) {
+      is(e.charIndex, 1, 'pause event charIndex matches service arguments');
+      is(e.elapsedTime, 1.5, 'pause event elapsedTime matches service arguments');
+      speechSynthesis.resume();
+    });
+
+    utterance.addEventListener('resume', function(e) {
+      is(e.charIndex, 1, 'resume event charIndex matches service arguments');
+      is(e.elapsedTime, 1.5, 'resume event elapsedTime matches service arguments');
+      speechSynthesis.cancel();
+    });
+
+    utterance.addEventListener('end', function(e) {
+      is(e.charIndex, 1, 'resume event charIndex matches service arguments');
+      is(e.elapsedTime, 1.5, 'end event elapsedTime matches service arguments');
+      test_no_events();
+    });
+
+    info('start speak');
+    speechSynthesis.speak(utterance);
+  }
+
+  function forbiddenEvent(e) {
+    ok(false, 'no "' + e.type + '" event was explicitly dispatched from the service')
+  }
+
+  function test_no_events() {
+    info('test_no_events');
+    var utterance = new SpeechSynthesisUtterance("never end");
+    utterance.lang = "it-IT-noevents-noend";
+    utterance.addEventListener('start', function(e) {
+      speechSynthesis.pause();
+      // Wait to see if we get some bad events we didn't expect.
+      setTimeout(function() {
+        ok(true, 'didn\'t get any unwanted events');
+        utterance.removeEventListener('end', forbiddenEvent);
+        SpecialPowers.wrap(speechSynthesis).forceEnd();
+        done_cb();
+      }, 1000);
+    });
+
+    utterance.addEventListener('pause', forbiddenEvent);
+    utterance.addEventListener('end', forbiddenEvent);
+
+    speechSynthesis.speak(utterance);
+  }
+
+  test_with_events();
+}
+
+// Run test with no global queue, and then run it with a global queue.
+testFunc(function() {
+  SpecialPowers.pushPrefEnv(
+    { set: [['media.webspeech.synth.force_global_queue', true]] }, function() {
+      testFunc(SimpleTest.finish)
+    });
+});
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_setup.html b/dom/media/webspeech/synth/test/file_setup.html
new file mode 100644
index 0000000000..da8c2c6824
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_setup.html
@@ -0,0 +1,96 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=525444
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 525444: Web Speech API check all classes are present</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+ok(SpeechSynthesis, "SpeechSynthesis exists in global scope");
+ok(SpeechSynthesisVoice, "SpeechSynthesisVoice exists in global scope");
+ok(SpeechSynthesisErrorEvent, "SpeechSynthesisErrorEvent exists in global scope");
+ok(SpeechSynthesisEvent, "SpeechSynthesisEvent exists in global scope");
+
+// SpeechSynthesisUtterance is the only type that has a constructor
+//  and writable properties
+ok(SpeechSynthesisUtterance, "SpeechSynthesisUtterance exists in global scope");
+var ssu = new SpeechSynthesisUtterance("hello world");
+is(typeof ssu, "object", "SpeechSynthesisUtterance instance is an object");
+is(ssu.text, "hello world", "SpeechSynthesisUtterance.text is correct");
+is(ssu.volume, 1, "SpeechSynthesisUtterance.volume default is correct");
+is(ssu.rate, 1, "SpeechSynthesisUtterance.rate default is correct");
+is(ssu.pitch, 1, "SpeechSynthesisUtterance.pitch default is correct");
+ssu.lang = "he-IL";
+ssu.volume = 0.5;
+ssu.rate = 2.0;
+ssu.pitch = 1.5;
+is(ssu.lang, "he-IL", "SpeechSynthesisUtterance.lang is correct");
+is(ssu.volume, 0.5,  "SpeechSynthesisUtterance.volume is correct");
+is(ssu.rate, 2.0,  "SpeechSynthesisUtterance.rate is correct");
+is(ssu.pitch, 1.5,  "SpeechSynthesisUtterance.pitch is correct");
+
+// Assign a rate that is out of bounds
+ssu.rate = 20;
+is(ssu.rate, 10, "SpeechSynthesisUtterance.rate enforces max of 10");
+ssu.rate = 0;
+is(ssu.rate.toPrecision(1), "0.1", "SpeechSynthesisUtterance.rate enforces min of 0.1");
+
+// Assign a volume which is out of bounds
+ssu.volume = 2;
+is(ssu.volume, 1, "SpeechSynthesisUtterance.volume enforces max of 1");
+ssu.volume = -1;
+is(ssu.volume, 0, "SpeechSynthesisUtterance.volume enforces min of 0");
+
+// Assign a pitch which is out of bounds
+ssu.pitch = 2.1;
+is(ssu.pitch, 2, "SpeechSynthesisUtterance.pitch enforces max of 2");
+ssu.pitch = -1;
+is(ssu.pitch, 0, "SpeechSynthesisUtterance.pitch enforces min of 0");
+
+// Test for singleton instance hanging off of window.
+ok(speechSynthesis, "speechSynthesis exists in global scope");
+is(typeof speechSynthesis, "object", "speechSynthesis instance is an object");
+is(typeof speechSynthesis.speak, "function", "speechSynthesis.speak is a function");
+is(typeof speechSynthesis.cancel, "function", "speechSynthesis.cancel is a function");
+is(typeof speechSynthesis.pause, "function", "speechSynthesis.pause is a function");
+is(typeof speechSynthesis.resume, "function", "speechSynthesis.resume is a function");
+is(typeof speechSynthesis.getVoices, "function", "speechSynthesis.getVoices is a function");
+
+is(typeof speechSynthesis.pending, "boolean", "speechSynthesis.pending is a boolean");
+is(typeof speechSynthesis.speaking, "boolean", "speechSynthesis.speaking is a boolean");
+is(typeof speechSynthesis.paused, "boolean", "speechSynthesis.paused is a boolean");
+
+var voices1 = speechSynthesis.getVoices();
+var voices2 = speechSynthesis.getVoices();
+
+ok(!!voices1.length, "More than one voice found");
+ok(voices1.length == voices2.length, "Voice count matches");
+
+for (var i in voices1) {
+  ok(voices1[i] == voices2[i], "Voice instance matches");
+}
+
+SimpleTest.finish();
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_speech_cancel.html b/dom/media/webspeech/synth/test/file_speech_cancel.html
new file mode 100644
index 0000000000..2ab0e1d0a8
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_speech_cancel.html
@@ -0,0 +1,100 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1150315
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1150315: Check that successive cancel/speak calls work</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1150315">Mozilla Bug 1150315</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1150315 **/
+
+function testFunc(done_cb) {
+  var gotEndEvent = false;
+  // A long utterance that we will interrupt.
+  var utterance = new SpeechSynthesisUtterance("Donec ac nunc feugiat, posuere " +
+    "mauris id, pharetra velit. Donec fermentum orci nunc, sit amet maximus" +
+    "dui tincidunt ut. Sed ultricies ac nisi a laoreet. Proin interdum," +
+    "libero maximus hendrerit posuere, lorem risus egestas nisl, a" +
+    "ultricies massa justo eu nisi. Duis mattis nibh a ligula tincidunt" +
+    "tincidunt non eu erat. Sed bibendum varius vulputate. Cras leo magna," +
+    "ornare ac posuere vel, luctus id metus. Mauris nec quam ac augue" +
+    "consectetur bibendum. Integer a commodo tortor. Duis semper dolor eu" +
+    "facilisis facilisis. Etiam venenatis turpis est, quis tincidunt velit" +
+    "suscipit a. Cras semper orci in sapien rhoncus bibendum. Suspendisse" +
+    "eu ex lobortis, finibus enim in, condimentum quam. Maecenas eget dui" +
+    "ipsum. Aliquam tortor leo, interdum eget congue ut, tempor id elit.");
+  utterance.addEventListener('start', function(e) {
+    ok(true, 'start utterance 1');
+    speechSynthesis.cancel();
+    info('cancel!');
+    speechSynthesis.speak(utterance2);
+    info('speak??');
+  });
+
+  var utterance2 = new SpeechSynthesisUtterance("Proin ornare neque vitae " +
+    "risus mattis rutrum. Suspendisse a velit ut est convallis aliquet." +
+    "Nullam ante elit, malesuada vel luctus rutrum, ultricies nec libero." +
+    "Praesent eu iaculis orci. Sed nisl diam, sodales ac purus et," +
+    "volutpat interdum tortor. Nullam aliquam porta elit et maximus. Cras" +
+    "risus lectus, elementum vel sodales vel, ultricies eget lectus." +
+    "Curabitur velit lacus, mollis vel finibus et, molestie sit amet" +
+    "sapien. Proin vitae dolor ac augue posuere efficitur ac scelerisque" +
+    "diam. Nulla sed odio elit.");
+  utterance2.addEventListener('start', function() {
+    info('start');
+    speechSynthesis.cancel();
+    speechSynthesis.speak(utterance3);
+  });
+  utterance2.addEventListener('end', function(e) {
+    gotEndEvent = true;
+  });
+
+  var utterance3 = new SpeechSynthesisUtterance("Hello, world 3!");
+  utterance3.addEventListener('start', function() {
+    ok(gotEndEvent, "didn't get start event for this utterance");
+  });
+  utterance3.addEventListener('end', done_cb);
+
+  // Speak/cancel while paused (Bug 1187105)
+  speechSynthesis.pause();
+  speechSynthesis.speak(new SpeechSynthesisUtterance("hello."));
+  ok(speechSynthesis.pending, "paused speechSynthesis has an utterance queued.");
+  speechSynthesis.cancel();
+  ok(!speechSynthesis.pending, "paused speechSynthesis has no utterance queued.");
+  speechSynthesis.resume();
+
+  speechSynthesis.speak(utterance);
+  ok(!speechSynthesis.speaking, "speechSynthesis is not speaking yet.");
+  ok(speechSynthesis.pending, "speechSynthesis has an utterance queued.");
+}
+
+// Run test with no global queue, and then run it with a global queue.
+testFunc(function() {
+  SpecialPowers.pushPrefEnv(
+    { set: [['media.webspeech.synth.force_global_queue', true]] }, function() {
+      testFunc(SimpleTest.finish)
+    });
+});
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_speech_error.html b/dom/media/webspeech/synth/test/file_speech_error.html
new file mode 100644
index 0000000000..b98ec2fac0
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_speech_error.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1226015
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1226015</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1226015">Mozilla Bug 1226015</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1226015 **/
+
+function testFunc(done_cb) {
+  var utterance = new SpeechSynthesisUtterance();
+  utterance.lang = 'it-IT-failatstart';
+
+  speechSynthesis.speak(utterance);
+  speechSynthesis.cancel();
+
+  ok(true, "we didn't crash, that is good.")
+  SimpleTest.finish();
+}
+
+// Run test with no global queue, and then run it with a global queue.
+testFunc();
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_speech_queue.html b/dom/media/webspeech/synth/test/file_speech_queue.html
new file mode 100644
index 0000000000..a471034dcf
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_speech_queue.html
@@ -0,0 +1,86 @@
+<!DOCTYPE HTML>
+<html lang="en-US">
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=525444
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 525444: Web Speech API, check speech synth queue</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=525444">Mozilla Bug 525444</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+// XXX: Rate and pitch are not tested.
+
+var langUriMap = {};
+
+for (let voice of speechSynthesis.getVoices()) {
+  langUriMap[voice.lang] = voice.voiceURI;
+  ok(true, voice.lang + ' ' + voice.voiceURI + ' ' + voice.default);
+  is(voice.default, voice.lang == 'en-JM', 'Only Jamaican voice should be default');
+}
+
+ok(langUriMap['en-JM'], 'No English-Jamaican voice');
+ok(langUriMap['en-GB'], 'No English-British voice');
+ok(langUriMap['en-CA'], 'No English-Canadian voice');
+ok(langUriMap['fr-CA'], 'No French-Canadian voice');
+ok(langUriMap['es-MX'], 'No Spanish-Mexican voice');
+ok(langUriMap['it-IT-fail'], 'No Failing Italian voice');
+
+function testFunc(done_cb) {
+  synthTestQueue(
+    [[{text: "Hello, world."},
+      { uri: langUriMap['en-JM'] }],
+     [{text: "Bonjour tout le monde .",
+       args: { lang: "fr", rate: 0.5, pitch: 0.75 }},
+      { uri: langUriMap['fr-CA'], rate: 0.5, pitch: 0.75}],
+     [{text: "How are you doing?", args: { lang: "en-GB" } },
+      { rate: 1, pitch: 1, uri: langUriMap['en-GB']}],
+     [{text: "Come stai?", args: { lang: "it-IT-fail" } },
+      { rate: 1, pitch: 1, uri: langUriMap['it-IT-fail'], err: true }],
+     [{text: "¡hasta mañana!", args: { lang: "es-MX" } },
+      { uri: langUriMap['es-MX'] }]],
+    function () {
+      var test_data = [];
+      var voices = speechSynthesis.getVoices();
+      for (let voice of voices) {
+        if (voice.lang.split("-").length > 2) {
+          // Skip voices that don't automatically end with success
+          continue;
+        }
+        test_data.push([{text: "Hello world", args: { voice} },
+                        {uri: voice.voiceURI}]);
+      }
+
+      synthTestQueue(test_data, done_cb);
+    });
+}
+
+// Run test with no global queue, and then run it with a global queue.
+testFunc(function() {
+  SpecialPowers.pushPrefEnv(
+    { set: [['media.webspeech.synth.force_global_queue', true]] }, function() {
+      testFunc(SimpleTest.finish)
+    });
+});
+
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_speech_repeating_utterance.html b/dom/media/webspeech/synth/test/file_speech_repeating_utterance.html
new file mode 100644
index 0000000000..6e37653057
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_speech_repeating_utterance.html
@@ -0,0 +1,26 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1305344: Utterance not repeating in Firefox</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.ok = parent.ok;
+  </script>
+  <script src="common.js"></script>
+</head>
+<body>
+  <script>
+    var utterance = new SpeechSynthesisUtterance("repeating?");
+    var counter = 0;
+    utterance.addEventListener('start', function(e) {
+      if (counter++ === 1) {
+        ok(true)
+        SimpleTest.finish();
+      }
+    });
+    speechSynthesis.speak(utterance);
+    speechSynthesis.speak(utterance);
+  </script>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/file_speech_simple.html b/dom/media/webspeech/synth/test/file_speech_simple.html
new file mode 100644
index 0000000000..c3f240ccdc
--- /dev/null
+++ b/dom/media/webspeech/synth/test/file_speech_simple.html
@@ -0,0 +1,53 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=650295
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 650295: Web Speech API check all classes are present</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.info = parent.info;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+  <script type="application/javascript" src="common.js"></script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+var gotStartEvent = false;
+var gotBoundaryEvent = false;
+var utterance = new SpeechSynthesisUtterance("Hello, world!");
+utterance.addEventListener('start', function(e) {
+  ok(speechSynthesis.speaking, "speechSynthesis is speaking.");
+  ok(!speechSynthesis.pending, "speechSynthesis has no other utterances queued.");
+  gotStartEvent = true;
+});
+
+utterance.addEventListener('end', function(e) {
+  ok(!speechSynthesis.speaking, "speechSynthesis is not speaking.");
+  ok(!speechSynthesis.pending, "speechSynthesis has no other utterances queued.");
+  ok(gotStartEvent, "Got 'start' event.");
+  info('end ' + e.elapsedTime);
+  SimpleTest.finish();
+});
+
+speechSynthesis.speak(utterance);
+ok(!speechSynthesis.speaking, "speechSynthesis is not speaking yet.");
+ok(speechSynthesis.pending, "speechSynthesis has an utterance queued.");
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/mochitest.ini b/dom/media/webspeech/synth/test/mochitest.ini
new file mode 100644
index 0000000000..2f188dac67
--- /dev/null
+++ b/dom/media/webspeech/synth/test/mochitest.ini
@@ -0,0 +1,29 @@
+[DEFAULT]
+tags=mtg
+subsuite = media
+support-files =
+  common.js
+  file_bfcache_page1.html
+  file_bfcache_page2.html
+  file_setup.html
+  file_speech_queue.html
+  file_speech_simple.html
+  file_speech_cancel.html
+  file_speech_error.html
+  file_indirect_service_events.html
+  file_global_queue.html
+  file_global_queue_cancel.html
+  file_global_queue_pause.html
+  file_speech_repeating_utterance.html
+
+[test_setup.html]
+[test_speech_queue.html]
+[test_speech_simple.html]
+[test_speech_cancel.html]
+[test_speech_error.html]
+[test_indirect_service_events.html]
+[test_global_queue.html]
+[test_global_queue_cancel.html]
+[test_global_queue_pause.html]
+[test_bfcache.html]
+[test_speech_repeating_utterance.html]
diff --git a/dom/media/webspeech/synth/test/nsFakeSynthServices.cpp b/dom/media/webspeech/synth/test/nsFakeSynthServices.cpp
new file mode 100644
index 0000000000..075e8aa878
--- /dev/null
+++ b/dom/media/webspeech/synth/test/nsFakeSynthServices.cpp
@@ -0,0 +1,288 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.h"
+#include "nsFakeSynthServices.h"
+#include "nsPrintfCString.h"
+#include "SharedBuffer.h"
+
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/dom/nsSynthVoiceRegistry.h"
+#include "mozilla/dom/nsSpeechTask.h"
+
+#include "nsThreadUtils.h"
+#include "nsXULAppAPI.h"
+#include "prenv.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/DebugOnly.h"
+
+#define CHANNELS 1
+#define SAMPLERATE 1600
+
+namespace mozilla::dom {
+
+StaticRefPtr<nsFakeSynthServices> nsFakeSynthServices::sSingleton;
+
+enum VoiceFlags {
+  eSuppressEvents = 1,
+  eSuppressEnd = 2,
+  eFailAtStart = 4,
+  eFail = 8
+};
+
+struct VoiceDetails {
+  const char* uri;
+  const char* name;
+  const char* lang;
+  bool defaultVoice;
+  uint32_t flags;
+};
+
+static const VoiceDetails sVoices[] = {
+    {"urn:moz-tts:fake:bob", "Bob Marley", "en-JM", true, 0},
+    {"urn:moz-tts:fake:amy", "Amy Winehouse", "en-GB", false, 0},
+    {"urn:moz-tts:fake:lenny", "Leonard Cohen", "en-CA", false, 0},
+    {"urn:moz-tts:fake:celine", "Celine Dion", "fr-CA", false, 0},
+    {
+        "urn:moz-tts:fake:julie",
+        "Julieta Venegas",
+        "es-MX",
+        false,
+    },
+    {"urn:moz-tts:fake:zanetta", "Zanetta Farussi", "it-IT", false, 0},
+    {"urn:moz-tts:fake:margherita", "Margherita Durastanti",
+     "it-IT-noevents-noend", false, eSuppressEvents | eSuppressEnd},
+    {"urn:moz-tts:fake:teresa", "Teresa Cornelys", "it-IT-noend", false,
+     eSuppressEnd},
+    {"urn:moz-tts:fake:cecilia", "Cecilia Bartoli", "it-IT-failatstart", false,
+     eFailAtStart},
+    {"urn:moz-tts:fake:gottardo", "Gottardo Aldighieri", "it-IT-fail", false,
+     eFail},
+};
+
+// FakeSynthCallback
+class FakeSynthCallback : public nsISpeechTaskCallback {
+ public:
+  explicit FakeSynthCallback(nsISpeechTask* aTask) : mTask(aTask) {}
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(FakeSynthCallback,
+                                           nsISpeechTaskCallback)
+
+  NS_IMETHOD OnPause() override {
+    if (mTask) {
+      mTask->DispatchPause(1.5, 1);
+    }
+
+    return NS_OK;
+  }
+
+  NS_IMETHOD OnResume() override {
+    if (mTask) {
+      mTask->DispatchResume(1.5, 1);
+    }
+
+    return NS_OK;
+  }
+
+  NS_IMETHOD OnCancel() override {
+    if (mTask) {
+      mTask->DispatchEnd(1.5, 1);
+    }
+
+    return NS_OK;
+  }
+
+  NS_IMETHOD OnVolumeChanged(float aVolume) override { return NS_OK; }
+
+ private:
+  virtual ~FakeSynthCallback() = default;
+
+  nsCOMPtr<nsISpeechTask> mTask;
+};
+
+NS_IMPL_CYCLE_COLLECTION(FakeSynthCallback, mTask);
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FakeSynthCallback)
+  NS_INTERFACE_MAP_ENTRY(nsISpeechTaskCallback)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsISpeechTaskCallback)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(FakeSynthCallback)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(FakeSynthCallback)
+
+// FakeSpeechSynth
+
+class FakeSpeechSynth : public nsISpeechService {
+ public:
+  FakeSpeechSynth() = default;
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISPEECHSERVICE
+
+ private:
+  virtual ~FakeSpeechSynth() = default;
+};
+
+NS_IMPL_ISUPPORTS(FakeSpeechSynth, nsISpeechService)
+
+NS_IMETHODIMP
+FakeSpeechSynth::Speak(const nsAString& aText, const nsAString& aUri,
+                       float aVolume, float aRate, float aPitch,
+                       nsISpeechTask* aTask) {
+  class DispatchStart final : public Runnable {
+   public:
+    explicit DispatchStart(nsISpeechTask* aTask)
+        : mozilla::Runnable("DispatchStart"), mTask(aTask) {}
+
+    NS_IMETHOD Run() override {
+      mTask->DispatchStart();
+
+      return NS_OK;
+    }
+
+   private:
+    nsCOMPtr<nsISpeechTask> mTask;
+  };
+
+  class DispatchEnd final : public Runnable {
+   public:
+    DispatchEnd(nsISpeechTask* aTask, const nsAString& aText)
+        : mozilla::Runnable("DispatchEnd"), mTask(aTask), mText(aText) {}
+
+    NS_IMETHOD Run() override {
+      mTask->DispatchEnd(mText.Length() / 2, mText.Length());
+
+      return NS_OK;
+    }
+
+   private:
+    nsCOMPtr<nsISpeechTask> mTask;
+    nsString mText;
+  };
+
+  class DispatchError final : public Runnable {
+   public:
+    DispatchError(nsISpeechTask* aTask, const nsAString& aText)
+        : mozilla::Runnable("DispatchError"), mTask(aTask), mText(aText) {}
+
+    NS_IMETHOD Run() override {
+      mTask->DispatchError(mText.Length() / 2, mText.Length());
+
+      return NS_OK;
+    }
+
+   private:
+    nsCOMPtr<nsISpeechTask> mTask;
+    nsString mText;
+  };
+
+  uint32_t flags = 0;
+  for (VoiceDetails voice : sVoices) {
+    if (aUri.EqualsASCII(voice.uri)) {
+      flags = voice.flags;
+      break;
+    }
+  }
+
+  if (flags & eFailAtStart) {
+    return NS_ERROR_FAILURE;
+  }
+
+  RefPtr<FakeSynthCallback> cb =
+      new FakeSynthCallback((flags & eSuppressEvents) ? nullptr : aTask);
+
+  aTask->Setup(cb);
+
+  nsCOMPtr<nsIRunnable> runnable = new DispatchStart(aTask);
+  NS_DispatchToMainThread(runnable);
+
+  if (flags & eFail) {
+    runnable = new DispatchError(aTask, aText);
+    NS_DispatchToMainThread(runnable);
+  } else if ((flags & eSuppressEnd) == 0) {
+    runnable = new DispatchEnd(aTask, aText);
+    NS_DispatchToMainThread(runnable);
+  }
+
+  return NS_OK;
+}
+
+// nsFakeSynthService
+
+NS_INTERFACE_MAP_BEGIN(nsFakeSynthServices)
+  NS_INTERFACE_MAP_ENTRY(nsIObserver)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_ADDREF(nsFakeSynthServices)
+NS_IMPL_RELEASE(nsFakeSynthServices)
+
+static void AddVoices(nsISpeechService* aService, const VoiceDetails* aVoices,
+                      uint32_t aLength) {
+  RefPtr<nsSynthVoiceRegistry> registry = nsSynthVoiceRegistry::GetInstance();
+  for (uint32_t i = 0; i < aLength; i++) {
+    NS_ConvertUTF8toUTF16 name(aVoices[i].name);
+    NS_ConvertUTF8toUTF16 uri(aVoices[i].uri);
+    NS_ConvertUTF8toUTF16 lang(aVoices[i].lang);
+    // These services can handle more than one utterance at a time and have
+    // several speaking simultaniously. So, aQueuesUtterances == false
+    registry->AddVoice(aService, uri, name, lang, true, false);
+    if (aVoices[i].defaultVoice) {
+      registry->SetDefaultVoice(uri, true);
+    }
+  }
+
+  registry->NotifyVoicesChanged();
+}
+
+void nsFakeSynthServices::Init() {
+  mSynthService = new FakeSpeechSynth();
+  AddVoices(mSynthService, sVoices, ArrayLength(sVoices));
+}
+
+// nsIObserver
+
+NS_IMETHODIMP
+nsFakeSynthServices::Observe(nsISupports* aSubject, const char* aTopic,
+                             const char16_t* aData) {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (NS_WARN_IF(!(!strcmp(aTopic, "speech-synth-started")))) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  if (Preferences::GetBool("media.webspeech.synth.test")) {
+    NS_DispatchToMainThread(NewRunnableMethod(
+        "dom::nsFakeSynthServices::Init", this, &nsFakeSynthServices::Init));
+  }
+
+  return NS_OK;
+}
+
+// static methods
+
+nsFakeSynthServices* nsFakeSynthServices::GetInstance() {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (!XRE_IsParentProcess()) {
+    MOZ_ASSERT(false,
+               "nsFakeSynthServices can only be started on main gecko process");
+    return nullptr;
+  }
+
+  if (!sSingleton) {
+    sSingleton = new nsFakeSynthServices();
+    ClearOnShutdown(&sSingleton);
+  }
+
+  return sSingleton;
+}
+
+already_AddRefed<nsFakeSynthServices>
+nsFakeSynthServices::GetInstanceForService() {
+  RefPtr<nsFakeSynthServices> picoService = GetInstance();
+  return picoService.forget();
+}
+
+}  // namespace mozilla::dom
diff --git a/dom/media/webspeech/synth/test/nsFakeSynthServices.h b/dom/media/webspeech/synth/test/nsFakeSynthServices.h
new file mode 100644
index 0000000000..f7e1ca7da6
--- /dev/null
+++ b/dom/media/webspeech/synth/test/nsFakeSynthServices.h
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsFakeSynthServices_h
+#define nsFakeSynthServices_h
+
+#include "nsTArray.h"
+#include "nsIObserver.h"
+#include "nsISpeechService.h"
+#include "nsRefPtrHashtable.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/Monitor.h"
+
+namespace mozilla::dom {
+
+class nsFakeSynthServices : public nsIObserver {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIOBSERVER
+
+  nsFakeSynthServices() = default;
+
+  static nsFakeSynthServices* GetInstance();
+
+  static already_AddRefed<nsFakeSynthServices> GetInstanceForService();
+
+ private:
+  virtual ~nsFakeSynthServices() = default;
+
+  void Init();
+
+  nsCOMPtr<nsISpeechService> mSynthService;
+
+  static StaticRefPtr<nsFakeSynthServices> sSingleton;
+};
+
+}  // namespace mozilla::dom
+
+#endif
diff --git a/dom/media/webspeech/synth/test/startup/file_voiceschanged.html b/dom/media/webspeech/synth/test/startup/file_voiceschanged.html
new file mode 100644
index 0000000000..6bb25462e4
--- /dev/null
+++ b/dom/media/webspeech/synth/test/startup/file_voiceschanged.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1254378
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1254378: Web Speech API check all classes are present</title>
+  <script type="application/javascript">
+    window.SimpleTest = parent.SimpleTest;
+    window.is = parent.is;
+    window.isnot = parent.isnot;
+    window.ok = parent.ok;
+  </script>
+</head>
+<body>
+<script type="application/javascript">
+
+/** Test for Bug 1254378 **/
+
+function onVoicesChanged() {
+  isnot(speechSynthesis.getVoices().length, 0, "Voices added");
+  speechSynthesis.removeEventListener("voiceschanged", onVoicesChanged);
+  SimpleTest.finish();
+}
+
+speechSynthesis.addEventListener("voiceschanged", onVoicesChanged);
+
+is(speechSynthesis.getVoices().length, 0, "No voices added initially");
+</script>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/startup/mochitest.ini b/dom/media/webspeech/synth/test/startup/mochitest.ini
new file mode 100644
index 0000000000..ec4285b772
--- /dev/null
+++ b/dom/media/webspeech/synth/test/startup/mochitest.ini
@@ -0,0 +1,8 @@
+[DEFAULT]
+tags=mtg
+subsuite = media
+support-files =
+  file_voiceschanged.html
+
+[test_voiceschanged.html]
+skip-if = verify
diff --git a/dom/media/webspeech/synth/test/startup/test_voiceschanged.html b/dom/media/webspeech/synth/test/startup/test_voiceschanged.html
new file mode 100644
index 0000000000..a60252ea7e
--- /dev/null
+++ b/dom/media/webspeech/synth/test/startup/test_voiceschanged.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1254378
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1254378: Emit onvoiceschanged when voices first added</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1254378">Mozilla Bug 1254378</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1254378 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv({ set: [['media.webspeech.synth.enabled', true]] },
+                          function() { document.getElementById("testFrame").src = "file_voiceschanged.html"; });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_bfcache.html b/dom/media/webspeech/synth/test/test_bfcache.html
new file mode 100644
index 0000000000..ba5981a42b
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_bfcache.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1230533
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1230533: Test speech is stopped from a window when unloaded</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1230533">Mozilla Bug 1230533</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+let testWin;
+
+function onDone() {
+  testWin.close();
+  SimpleTest.finish();
+}
+
+SpecialPowers.pushPrefEnv({ set: [
+  ['media.webspeech.synth.enabled', true],
+  ['media.webspeech.synth.force_global_queue', true]] },
+  function() {
+    testWin = window.open("about:blank", "testWin");
+    testWin.onload = function(e) {
+      waitForVoices(testWin)
+        .then(() => testWin.location = "file_bfcache_page1.html")
+    };
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_global_queue.html b/dom/media/webspeech/synth/test/test_global_queue.html
new file mode 100644
index 0000000000..177f79b399
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_global_queue.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1188099
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1188099: Global queue should correctly schedule utterances</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188099">Mozilla Bug 1188099</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', true]] },
+  function() { loadSpeechTest("file_global_queue.html"); });
+
+</script>
+</pre>
+</body>
+</html>
\ No newline at end of file
diff --git a/dom/media/webspeech/synth/test/test_global_queue_cancel.html b/dom/media/webspeech/synth/test/test_global_queue_cancel.html
new file mode 100644
index 0000000000..748d1367b5
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_global_queue_cancel.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1188099
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1188099: Calling cancel() should work correctly with global queue</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188099">Mozilla Bug 1188099</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', true]] },
+  function() { loadSpeechTest("file_global_queue_cancel.html"); });
+
+</script>
+</pre>
+</body>
+</html>
\ No newline at end of file
diff --git a/dom/media/webspeech/synth/test/test_global_queue_pause.html b/dom/media/webspeech/synth/test/test_global_queue_pause.html
new file mode 100644
index 0000000000..9632d85127
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_global_queue_pause.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1188099
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1188099: Calling pause() should work correctly with global queue</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1188099">Mozilla Bug 1188099</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', true]] },
+  function() { loadSpeechTest("file_global_queue_pause.html"); });
+
+</script>
+</pre>
+</body>
+</html>
\ No newline at end of file
diff --git a/dom/media/webspeech/synth/test/test_indirect_service_events.html b/dom/media/webspeech/synth/test/test_indirect_service_events.html
new file mode 100644
index 0000000000..e5b32e70f0
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_indirect_service_events.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1155034
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1155034: Check that indirect audio services dispatch their own events</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1155034">Mozilla Bug 1155034</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1155034 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', false]] },
+  function() { loadSpeechTest("file_indirect_service_events.html"); });
+
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_setup.html b/dom/media/webspeech/synth/test/test_setup.html
new file mode 100644
index 0000000000..da07687750
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_setup.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=525444
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 525444: Web Speech API check all classes are present</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv({ set: [['media.webspeech.synth.enabled', true]] },
+                          function() { document.getElementById("testFrame").src = "file_setup.html"; });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_speech_cancel.html b/dom/media/webspeech/synth/test/test_speech_cancel.html
new file mode 100644
index 0000000000..ced952c736
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_speech_cancel.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1150315
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1150315: Web Speech API check all classes are present</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1150315">Mozilla Bug 1150315</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1150315 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', false]] },
+  function() { loadSpeechTest("file_speech_cancel.html"); });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_speech_error.html b/dom/media/webspeech/synth/test/test_speech_error.html
new file mode 100644
index 0000000000..e2ce156dc6
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_speech_error.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1226015
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1150315: Web Speech API check all classes are present</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1226015">Mozilla Bug 1226015</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 1226015 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', false]] },
+  function() { loadSpeechTest("file_speech_error.html"); });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_speech_queue.html b/dom/media/webspeech/synth/test/test_speech_queue.html
new file mode 100644
index 0000000000..3bca9e0ce2
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_speech_queue.html
@@ -0,0 +1,37 @@
+<!DOCTYPE HTML>
+<html lang="en-US">
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=525444
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 525444: Web Speech API, check speech synth queue</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=525444">Mozilla Bug 525444</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true],
+          ['media.webspeech.synth.force_global_queue', false]] },
+  function() {
+    loadSpeechTest("file_speech_queue.html");
+  });
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_speech_repeating_utterance.html b/dom/media/webspeech/synth/test/test_speech_repeating_utterance.html
new file mode 100644
index 0000000000..6313a275c1
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_speech_repeating_utterance.html
@@ -0,0 +1,18 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1305344: Utterance not repeating in Firefox</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="common.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1305344">Mozilla Bug 1305344</a>
+  <iframe id="testFrame"></iframe>
+  <script>
+    SimpleTest.waitForExplicitFinish();
+    loadSpeechTest('file_speech_repeating_utterance.html');
+  </script>
+</body>
+</html>
diff --git a/dom/media/webspeech/synth/test/test_speech_simple.html b/dom/media/webspeech/synth/test/test_speech_simple.html
new file mode 100644
index 0000000000..c6c0e3a5be
--- /dev/null
+++ b/dom/media/webspeech/synth/test/test_speech_simple.html
@@ -0,0 +1,34 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=650295
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 650295: Web Speech API check all classes are present</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript" src="common.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a>
+<p id="display"></p>
+<iframe id="testFrame"></iframe>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 525444 **/
+
+SimpleTest.waitForExplicitFinish();
+
+SpecialPowers.pushPrefEnv(
+  { set: [['media.webspeech.synth.enabled', true]] },
+  function() { loadSpeechTest("file_speech_simple.html"); });
+
+</script>
+</pre>
+</body>
+</html>