test_bug797113.html

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<!doctype html>

<meta charset=utf-8>

<title>Test for bug 780993</title>

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

<div id=log></div>

<script>

test(function() {

  var select = document.createElement("select");

  var option = document.createElement("option");

  select.appendChild(option);

  assert_equals(select.options[0], option);

  select.options[0] = null;

  assert_equals(option.parentNode, null);

  assert_equals(select.options[0], undefined);

}, "Should be able to set select.options[n] to null.");

test(function() {

  var select = document.createElement("select");

  var option = document.createElement("option");

  var option2 = document.createElement("option");

  select.appendChild(option);

  assert_equals(select.options[0], option);

  select.options[0] = option2;

  assert_equals(option.parentNode, null);

  assert_equals(option2.parentNode, select);

  assert_equals(select.options[0], option2);

}, "Should be able to set select.options[n] to an option element");

test(function() {

  var select = document.createElement("select");

  var option = document.createElement("option");

  select.appendChild(option);

  assert_equals(select.options[0], option);

  assert_throws(null, function() {

    select.options[0] = 42;

});

  assert_equals(option.parentNode, select);

  assert_equals(select.options[0], option);

}, "Should not be able to set select.options[n] to a primitive.");

</script>