third_party/WebKit/LayoutTests/editing/selection/extend.html

   1 <html>
   2 <body>
   3 <div id="test"><span id="span1">foo<span id="span2">bar</span></span><span id="span3">baz</span></div>
   4 <div id="console"></div>
   5 <script>
   6 var s = window.getSelection();
   7 var testDiv = document.getElementById("test");
   8 var span1 = document.getElementById("span1");
   9 var span2 = document.getElementById("span2");
  10 var span3 = document.getElementById("span3");
  11
  12 function log(str) {
  13     var li = document.createElement("li");
  14     li.appendChild(document.createTextNode(str));
  15     document.getElementById("console").appendChild(li);
  16 }
  17
  18 function shouldBe(expr, expected) {
  19     var actual = eval(expr);
  20     if (actual != expected)
  21         log("Failure: " + expr + " should be " + expected + ", was " + actual + ".");
  22     else
  23         log("Success: " + expr + " is " + expected + ".");
  24 }
  25
  26 function shouldThrow(expr) {
  27     try {
  28         eval(expr);
  29         log("Failure: " + expr + " didn't raise an exception" + ".");
  30     } catch (ex) {
  31         log("Success: " + expr + " raised " + ex + ".");
  32     }
  33 }
  34
  35 if (window.testRunner)
  36     testRunner.dumpAsText();
  37
  38 var r = document.createRange();
  39
  40
  41 r.setStart(span2.firstChild, 1);
  42 r.setEnd(span2.firstChild, 1);
  43 s.addRange(r);
  44
  45 s.extend(span2.firstChild, 3);
  46 shouldBe('window.getSelection()', 'ar');
  47
  48 shouldThrow('s.extend(span2.firstChild, 4)');
  49
  50 shouldThrow('s.extend(span2.firstChild, -1)');
  51
  52 s.extend(span2.firstChild, 0);
  53 shouldBe('window.getSelection()', 'b');
  54
  55 s.extend(span3, 1);
  56 shouldBe('window.getSelection()', 'arbaz');
  57
  58 shouldThrow('s.extend()');
  59 shouldThrow('s.extend(null, 0)');
  60
  61 </script>
  62 </body>
  63 </html>