1 files changed, 46 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/forms/the-form-element/form-elements-matches.html b/testing/web-platform/tests/html/semantics/forms/the-form-element/form-elements-matches.html
new file mode 100644
index 0000000000..7921627265
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/forms/the-form-element/form-elements-matches.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<title>form.elements: matches</title>
+<link rel="author" title="Ms2ger" href="mailto:ms2ger@gmail.com">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-form-elements">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<div id="test">
+<form id="form">
+<input type="image">
+</form>
+</div>
+<script>
+test(function() {
+  assert_equals(document.getElementById("form").elements.length, 0);
+}, "input type=image should not be present in the form.elements collection")
+test(function() {
+  var form = document.getElementById("form");
+  var i = document.createElement("input");
+  i.name = "2";
+  form.appendChild(i);
+  var j = document.createElement("input");
+  j.name = "03";
+  form.appendChild(j);
+  assert_equals(form.elements[-1], undefined, '[-1]');
+  assert_equals(form.elements["-1"], undefined, '["-1"]');
+  assert_equals(form.elements[0], i, '[0]');
+  assert_equals(form.elements["0"], i, '["0"]');
+  assert_equals(form.elements[1], j, '[1]');
+  assert_equals(form.elements["1"], j, '["1"]');
+  assert_equals(form.elements[2], undefined, '[2]');
+  assert_equals(form.elements["2"], undefined, '["2"]');
+  assert_equals(form.elements[03], undefined, '[03]');
+  assert_equals(form.elements["03"], j, '["03"]');
+  assert_equals(form.elements.item(-1), null, 'item(-1)');
+  assert_equals(form.elements.item(0), i, 'item(0)');
+  assert_equals(form.elements.item(1), j, 'item(1)');
+  assert_equals(form.elements.item(2), null, 'item(2)');
+  assert_equals(form.elements.namedItem("2"), i, 'namedItem("2")');
+  assert_equals(form.elements.namedItem("03"), j, 'namedItem("03")');
+  assert_equals(form.elements.namedItem("3"), null, 'namedItem("3")');
+  assert_array_equals(form.elements, [i, j]);
+  form.removeChild(i);
+  form.removeChild(j);
+}, "form.elements should include elements whose name starts with a number");
+</script>