import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

editor/libeditor/tests/test_bug483651.html

@@ -0,0 +1,53 @@
+<!DOCTYPE HTML>
+<!-- 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/. -->
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=483651
+-->
+
+<head>
+  <title>Test for Bug 483651</title>
+  <script src="/MochiKit/packed.js"></script>
+  <script src="/tests/SimpleTest/EventUtils.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css">
+</head>
+
+<body onload="doTest();">
+  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=483651">Mozilla Bug 483651</a>
+  <p id="display"></p>
+  <div id="content" style="display: none">
+  </div>
+
+  <pre id="test">
+    <script type="application/javascript">
+
+      /** Test for Bug 483651 **/
+
+      SimpleTest.waitForExplicitFinish();
+
+      function doTest() {
+        var t1 = $("t1");
+        var editor = SpecialPowers.wrap(t1).editor;
+
+        ok(editor, "able to get editor for the element");
+        t1.focus();
+        synthesizeKey("A", {});
+        synthesizeKey("VK_BACK_SPACE", {});
+
+        try {
+          // Was the trailing br removed?
+          is(editor.documentIsEmpty, true, "trailing <br> correctly removed");
+        } catch (e) {
+          ok(false, "test failed with error "+e);
+        }
+        SimpleTest.finish();
+      }
+   </script>
+  </pre>
+
+  <textarea id="t1" rows="2" columns="80"></textarea>
+</body>
+</html>