gecko-dev/dom/html/test/test_bug659596.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=659596
-->
<head>
<title>Test for Bug 659596</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=659596">Mozilla Bug 659596</a>
<p id="display"></p>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 659596 **/
function checkReflection(option, attribute) {
/**
* Getting.
*/
// When attribute isn't present.
var tests = [ "", "foo" ];
for (var test of tests) {
option.removeAttribute(attribute);
option.textContent = test;
is(option.getAttribute(attribute), null,
"option " + attribute + "'s value should be null");
is(option[attribute], option.textContent,
"option." + attribute + " should reflect the text content when the attribute isn't set");
}
// When attribute is present.
tests = [
[ "", "" ],
[ "", "foo" ],
[ "foo", "bar" ],
[ "foo", "" ],
];
for (var test of tests) {
option.setAttribute(attribute, test[0]);
option.textContent = test[1];
is(option[attribute], option.getAttribute(attribute),
"option." + attribute + " should reflect the content attribute when it is set");
}
/**
* Setting.
*/
// When attribute isn't present.
tests = [
[ "", "new" ],
[ "foo", "new" ],
];
for (var test of tests) {
option.removeAttribute(attribute);
option.textContent = test[0];
option[attribute] = test[1]
is(option.getAttribute(attribute), test[1],
"when setting, the content attribute should change");
is(option.textContent, test[0],
"when setting, the text content should not change");
}
// When attribute is present.
tests = [
[ "", "", "new" ],
[ "", "foo", "new" ],
[ "foo", "bar", "new" ],
[ "foo", "", "new" ],
];
for (var test of tests) {
option.setAttribute(attribute, test[0]);
option.textContent = test[1];
option[attribute] = test[2];
is(option.getAttribute(attribute), test[2],
"when setting, the content attribute should change");
is(option.textContent, test[1],
"when setting, the text content should not change");
}
}
var option = document.createElement("option");
checkReflection(option, "value");
checkReflection(option, "label");
</script>
</pre>
</body>
</html>