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<!DOCTYPE HTML>
<html>
<head>
<title>deleteCaption()</title>
<link rel="author" title="Ben Boyle" href="mailto:benjamins.boyle@gmail.com">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-table-deletecaption" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<table id="one-caption">
<caption>Fixture table caption</caption>
</table>
<table id="two-captions">
<caption>Fixture table caption</caption>
<caption>A second caption element</caption>
</table>
<table id="zero-captions"></table>
<table id="descendent-caption">
<tr>
<td>
<table>
<caption>Nested caption</caption>
</table>
</td>
</tr>
</table>
<script>
// The deleteCaption() method must remove the first caption element child of the table element, if any.
// https://html.spec.whatwgorg/multipage/tables.html#dom-table-deletecaption
test(function() {
var table = document.getElementById('one-caption');
table.deleteCaption();
assert_equals(table.getElementsByTagName('caption').length, 0, 'caption was removed');
}, 'deleteCaption() delete only caption on table');
test(function() {
var table = document.getElementById('one-caption');
var result;
result = table.deleteCaption();
// does .deleteCaption() have a return value?
assert_equals(result, undefined, '.deleteCaption() returns undefined');
}, 'deleteCaption() returns undefined');
test(function() {
var table = document.getElementById('two-captions');
table.deleteCaption();
assert_equals(table.getElementsByTagName('caption').length, 1, '1 caption (of 2) was removed');
assert_equals(table.getElementsByTagName('caption')[0].textContent, 'A second caption element', 'The first caption was removed');
// removing the only caption
table.deleteCaption();
assert_equals(table.getElementsByTagName('caption').length, 0, 'last caption was removed');
}, 'deleteCaption()');
test(function() {
var table = document.getElementById('zero-captions');
// removing a caption when none exists
table.deleteCaption();
assert_equals(table.getElementsByTagName('caption').length, 0, 'no exceptions using .deleteCaption() on a table without any captions');
}, 'deleteCaption() does not throw any exceptions when called on a table without a caption');
test(function() {
var table = document.getElementById( 'descendent-caption' );
table.deleteCaption();
assert_equals(table.getElementsByTagName('caption').length, 1, 'descendent caption was not deleted');
}, 'deleteCaption() does not delete captions in descendent tables');
test(function() {
var table = document.getElementById('zero-captions');
var caption;
caption = document.createElementNS('http://www.w3.org/2000/svg', 'caption');
table.insertBefore(caption, table.firstChild);
assert_equals(table.getElementsByTagName('caption').length, 1, 'SVG:caption is created');
table.deleteCaption();
assert_equals(table.getElementsByTagName('caption').length, 1, 'SVG:caption is not deleted');
}, 'deleteCaption() handles captions from different namespaces');
</script>
</body>
</html>
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