Bug 973341 [wpt PR 15266] - [Gecko Bug 973341] XPath evaluate() fails if reusing an iterator result., a=testonly

Automatic update from web-platform-tests
XPath evaluate() fails if reusing an iterator result.

Differential Revision: https://phabricator.services.mozilla.com/D18552

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=973341
gecko-commit: 1c906eec1366ee11052c392e35ad01777f433d91
gecko-integration-branch: central
gecko-reviewers: smaug

--

wpt-commits: 9b2355cc88e0fdf8cebb6775f6cdeadd7b6a5677
wpt-pr: 15266

testing/web-platform/tests/domxpath/document.tentative.html

@@ -27,5 +27,16 @@ test(function() {
     matched.push(cur);
   }
   assert_array_equals(matched, [document]);
+  // Evaluate again, but reuse result from previous evaluation.
+  result = document.evaluate("..", // expression
+                            document.documentElement, // context node
+                            null, // resolver
+                            XPathResult.ANY_TYPE, // type
+                            result); // result
+  matched = [];
+  while ((cur = result.iterateNext()) !== null) {
+    matched.push(cur);
+  }
+  assert_array_equals(matched, [document]);
 });
 </script>