third_party/web_platform_tests/dom/ranges/Range-comparePoint.html

<!doctype html>
<title>Range.comparePoint() tests</title>
<link rel="author" title="Aryeh Gregor" href=ayg@aryeh.name>
<meta name=timeout content=long>
<div id=log></div>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=../common.js></script>
<script>
"use strict";

// Will be filled in on the first run for that range
var testRangesCached = [];

for (var i = 0; i < testPoints.length; i++) {
  var node = eval(testPoints[i])[0];
  var offset = eval(testPoints[i])[1];

  // comparePoint is an unsigned long, so per WebIDL, we need to treat it as
  // though it wrapped to an unsigned 32-bit integer.
  var normalizedOffset = offset % Math.pow(2, 32);
  if (normalizedOffset < 0) {
    normalizedOffset += Math.pow(2, 32);
  }

  for (var j = 0; j < testRanges.length; j++) {
    test(function() {
      if (testRangesCached[j] === undefined) {
        try {
          testRangesCached[j] = rangeFromEndpoints(eval(testRanges[i]));
        } catch(e) {
          testRangesCached[j] = null;
        }
      }
      assert_not_equals(testRangesCached[j], null,
        "Setting up the range failed");

      var range = testRangesCached[j].cloneRange();

      // "If node's root is different from the context object's root,
      // throw a "WrongDocumentError" exception and terminate these
      // steps."
      if (furthestAncestor(node) !== furthestAncestor(range.startContainer)) {
        assert_throws("WRONG_DOCUMENT_ERR", function() {
          range.comparePoint(node, offset);
        }, "Must throw WrongDocumentError if node and range have different roots");
        return;
      }

      // "If node is a doctype, throw an "InvalidNodeTypeError" exception
      // and terminate these steps."
      if (node.nodeType == Node.DOCUMENT_TYPE_NODE) {
        assert_throws("INVALID_NODE_TYPE_ERR", function() {
          range.comparePoint(node, offset);
        }, "Must throw InvalidNodeTypeError if node is a doctype");
        return;
      }

      // "If offset is greater than node's length, throw an
      // "IndexSizeError" exception and terminate these steps."
      if (normalizedOffset > nodeLength(node)) {
        assert_throws("INDEX_SIZE_ERR", function() {
          range.comparePoint(node, offset);
        }, "Must throw IndexSizeError if offset is greater than  length");
        return;
      }

      // "If (node, offset) is before start, return −1 and terminate
      // these steps."
      if (getPosition(node, normalizedOffset, range.startContainer, range.startOffset) === "before") {
        assert_equals(range.comparePoint(node, offset), -1,
          "Must return -1 if point is before start");
        return;
      }

      // "If (node, offset) is after end, return 1 and terminate these
      // steps."
      if (getPosition(node, normalizedOffset, range.endContainer, range.endOffset) === "after") {
        assert_equals(range.comparePoint(node, offset), 1,
          "Must return 1 if point is after end");
        return;
      }

      // "Return 0."
      assert_equals(range.comparePoint(node, offset), 0,
        "Must return 0 if point is neither before start nor after end");
    }, "Point " + i + " " + testPoints[i] + ", range " + j + " " + testRanges[j]);
  }
}

testDiv.style.display = "none";
</script>