third_party/WebKit/LayoutTests/traversal/script-tests/exception-forwarding.js

   1 description("Test of exception forwarding for NodeIterator and TreeWalker, derived from an early version of Acid3");
   2
   3 var iteration = 0;
   4 function test(node)
   5 {
   6     iteration += 1;
   7     switch (iteration) {
   8         case 1: case 3: case 4: case 6: case 7: case 8: case 9: case 12: throw "Roses";
   9         case 2: case 5: case 10: case 11: return true;
  10         default: throw 0;
  11     }
  12 }
  13
  14 var i = document.createNodeIterator(document.documentElement, 0xFFFFFFFF, test, true);
  15 shouldThrow("i.nextNode()"); // 1
  16 shouldBe("i.nextNode()", "document.documentElement"); // 2
  17 shouldThrow("i.previousNode()"); // 3
  18 var w = document.createTreeWalker(document.documentElement, 0xFFFFFFFF, test, true);
  19 shouldThrow("w.nextNode()"); // 4
  20 shouldBe("w.nextNode()", "document.documentElement.firstChild"); // 5
  21 shouldThrow("w.previousNode()"); // 6
  22 shouldThrow("w.firstChild()"); // 7
  23 shouldThrow("w.lastChild()"); // 8
  24 shouldThrow("w.nextSibling()"); // 9
  25 shouldBe("w.previousSibling()", "null");
  26 shouldBe("w.nextSibling()", "document.body.previousSibling"); // 10
  27 shouldBe("w.previousSibling()", "document.head"); // 11
  28 shouldBe("iteration", "11");
  29
  30 var successfullyParsed = true;