editor/libeditor/tests/test_bug471319.html

   1 <!DOCTYPE HTML>
   2 <!-- This Source Code Form is subject to the terms of the Mozilla Public
   3    - License, v. 2.0. If a copy of the MPL was not distributed with this
   4    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
   5 <html>
   6 <!--
   7 https://bugzilla.mozilla.org/show_bug.cgi?id=471319
   8 -->
   9
  10 <head>
  11   <title>Test for Bug 471319</title>
  12   <script src="/tests/SimpleTest/SimpleTest.js"></script>
  13   <link rel="stylesheet" href="/tests/SimpleTest/test.css">
  14 </head>
  15
  16 <body onload="doTest();">
  17   <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=471319">Mozilla Bug 471319</a>
  18   <p id="display"></p>
  19   <div id="content" style="display: none">
  20   </div>
  21
  22   <pre id="test">
  23     <script type="application/javascript">
  24
  25       /** Test for Bug 471319 **/
  26
  27       SimpleTest.waitForExplicitFinish();
  28
  29       function doTest() {
  30         let t1 = SpecialPowers.wrap($("t1"));
  31
  32         // Test 1: Undo on an empty editor - the editor should not forget about
  33         // the padding <br> element for empty editor.
  34         let t1Editor = t1.editor;
  35
  36         // Did the editor recognize the new padding <br> element?
  37         t1Editor.undo();
  38         ok(!t1.value, "<br> still recognized as padding on undo");
  39
  40
  41         // Test 2: Redo on an empty editor - the editor should not forget about
  42         // the padding <br> element for empty editor.
  43         let t2 = SpecialPowers.wrap($("t2"));
  44         let t2Editor = t2.editor;
  45
  46         // Did the editor recognize the new padding <br> element?
  47         t2Editor.redo();
  48         ok(!t2.value, "<br> still recognized as padding on redo");
  49
  50
  51         // Test 3: Undoing a batched transaction where both end points of the
  52         // transaction are the padding <br> element for empty editor - the
  53         // <br> element should still be recognized as padding.
  54         t1Editor.beginTransaction();
  55         t1.value = "mozilla";
  56         t1.value = "";
  57         t1Editor.endTransaction();
  58         t1Editor.undo();
  59         ok(!t1.value,
  60            "recreated <br> from undo transaction recognized as padding");
  61
  62
  63         // Test 4: Redoing a batched transaction where both end points of the
  64         // transaction are the padding <br> element for empty editor - the
  65         // <br> element should still be recognized padding.
  66         t1Editor.redo();
  67         ok(!t1.value,
  68            "recreated <br> from redo transaction recognized as padding");
  69         SimpleTest.finish();
  70      }
  71    </script>
  72   </pre>
  73
  74   <input type="text" id="t1" />
  75   <input type="text" id="t2" />
  76 </body>
  77 </html>