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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/semantics/tabular-data/the-table-element/tHead.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset="utf-8">
<title>tHead tests</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<table id="t">
<caption id="tcaption"></caption><thead id="thead1"></thead><thead id="thead2"></thead><thead id="thead3"></thead><tbody id="tbody1"></tbody><tbody id="tbody2"></tbody><tfoot id="tfoot"></tfoot>
</table>
<table>
<thead id="t2thead">
<td>
<table id="t2">
</table>
</table>
<script>
test(function() {
var t = document.getElementById("t");
var thead1 = document.getElementById("thead1");
assert_equals(t.tHead, thead1);
var thead2 = document.getElementById("thead2");
t.tHead = null;
assert_equals(t.tHead, thead2);
var thead3 = document.getElementById("thead3");
t.deleteTHead();
assert_equals(t.tHead, thead3);
var thead = t.createTHead();
assert_equals(t.tHead, thead);
assert_equals(thead, thead3);
t.deleteTHead();
assert_equals(t.tHead, null);
var tcaption = document.getElementById("tcaption");
var tbody1 = document.getElementById("tbody1");
thead = t.createTHead();
assert_equals(t.tHead, thead);
assert_equals(t.tHead.previousSibling, tcaption);
assert_equals(t.tHead.nextSibling, tbody1);
assert_throws_js(TypeError, function(){
t.tHead = document.createElement("div");
});
assert_throws_dom("HierarchyRequestError", function(){
t.tHead = document.createElement("tbody");
});
});
test(function() {
var t2 = document.getElementById("t2");
var t2thead = document.getElementById("t2thead");
assert_throws_dom("HierarchyRequestError", function() {
t2.tHead = t2thead;
});
});
test(function () {
var thead = table.createTHead();
assert_equals(table.tHead, thead);
assert_equals(thead.prefix, null);
});
</script>