domxpath/001.html

<!doctype html>
<meta charset="utf8">
<title>XPath in text/html: elements</title>
<link rel="help" href="http://www.w3.org/TR/DOM-Level-3-XPath/xpath.html#Interfaces">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<div id="log"><span></span></div>
<div><span></span></div>
<dØdd></dØdd>
<svg>
<path />
<path />
</svg>

<script>
function test_xpath_succeeds(path, expected, resolver) {
  resolver = resolver ? resolver : null;
  var res = document.evaluate(path, document, resolver, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
  actual = [];
  for (var i=0;;i++) {
    var node = res.snapshotItem(i);
    if (node === null) {
       break;
    }
    actual.push(node);
  }
  assert_array_equals(actual, expected);
}

function test_xpath_throws(path, error_code, resolver) {
  resolver = resolver ? resolver : null;
  assert_throws_dom(error_code, function() {document.evaluate(path, document, resolver, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null)})
}

function ns_resolver(x) {
  map = {"html":"http://www.w3.org/1999/xhtml",
         "svg":"http://www.w3.org/2000/svg",
         "math":"http://www.w3.org/1998/Math/MathML"};
  var rv = map.hasOwnProperty(x) ? map[x] : null;
  return rv;
}

generate_tests(test_xpath_succeeds,[
  ["HTML elements no namespace prefix", "//div", document.getElementsByTagName("div")],
  ["HTML elements namespace prefix", "//html:div", document.getElementsByTagName("div"), ns_resolver],
  ["HTML elements mixed use of prefix", "//html:div/span", document.getElementsByTagName("span"), ns_resolver],
  ["SVG elements no namespace prefix", "//path", []],
  ["SVG elements namespace prefix", "//svg:path", document.getElementsByTagName("path"), ns_resolver],
  ["HTML elements mixed case", "//DiV", document.getElementsByTagName("div")],
  ["SVG elements mixed case selector", "//svg:PatH", [], ns_resolver],
  ["Non-ascii HTML element", "//dØdd", document.getElementsByTagName("dØdd"), ns_resolver],
  ["Non-ascii HTML element2", "//dødd", [], ns_resolver],
  ["Non-ascii HTML element3", "//DØDD", document.getElementsByTagName("dØdd"), ns_resolver]
])

generate_tests(test_xpath_throws, [
  ["Throw with invalid prefix", "//invalid:path", "NAMESPACE_ERR"],
])
</script>