1 files changed, 64 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/tabular-data/the-tr-element/insertCell.html b/testing/web-platform/tests/html/semantics/tabular-data/the-tr-element/insertCell.html
new file mode 100644
index 0000000000..11cd213fe7
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/tabular-data/the-tr-element/insertCell.html
@@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>HTMLTableRowElement#insertCell</title>
+<link rel="author" title="Intel" href="http://www.intel.com/">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<div id="log"></div>
+
+<table>
+  <tr id="testTr"></tr>
+</table>
+
+<script>
+
+var tr = document.getElementById("testTr");
+
+test(function () {
+  var tdEle = tr.insertCell(0);
+  assert_equals(tr.cells[0], tdEle);
+  assert_equals(tr.cells.length, 1);
+}, "HTMLTableRowElement insertCell(0)");
+
+test(function () {
+  var tdEle = tr.insertCell(-1);
+  assert_equals(tr.cells[tr.cells.length - 1], tdEle);
+  assert_equals(tr.cells.length, 2);
+}, "HTMLTableRowElement insertCell(-1)");
+
+
+test(function () {
+  var tdEle = tr.insertCell(tr.cells.length);
+  assert_equals(tr.cells[tr.cells.length - 1], tdEle);
+  assert_equals(tr.cells.length, 3);
+}, "HTMLTableRowElement insertCell(cells.length)");
+
+test(function () {
+  var tdEle = tr.insertCell();
+  assert_equals(tr.cells[tr.cells.length - 1], tdEle);
+  assert_equals(tr.cells.length, 4);
+}, "HTMLTableRowElement insertCell()");
+
+test(function () {
+  assert_throws_dom("IndexSizeError", function () {
+    tr.insertCell(-2);
+  });
+}, "HTMLTableRowElement insertCell(-2)");
+
+test(function () {
+  assert_throws_dom("IndexSizeError", function () {
+    tr.insertCell(tr.cells.length + 1);
+  });
+}, "HTMLTableRowElement insertCell(cells.length + 1)");
+
+test(function () {
+  var table = document.createElementNS("http://www.w3.org/1999/xhtml", "foo:table")
+  var row = table.insertRow(0);
+  var cell = row.insertCell(0);
+
+  assert_equals(row.cells[0], cell);
+  assert_equals(cell.prefix, null);
+}, "HTMLTableRowElement insertCell will not copy table's prefix");
+
+</script>