gecko-dev/dom/imptests/editing/selecttest/test_selectAllChildren.html

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<!doctype html>
<title>Selection.selectAllChildren tests</title>
<div id=log></div>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=common.js></script>
<script>
"use strict";
testRanges.unshift("[]");
for (var i = 0; i < testRanges.length; i++) {
var endpoints = eval(testRanges[i]);
for (var j = 0; j < testNodes.length; j++) {
var node = eval(testNodes[j]);
test(function() {
setSelectionForwards(endpoints);
var originalRange = getSelection().rangeCount
? getSelection().getRangeAt(0)
: null;
if (node.nodeType == Node.DOCUMENT_TYPE_NODE) {
assert_throws("INVALID_NODE_TYPE_ERR", function() {
selection.selectAllChildren(node);
}, "selectAllChildren() on a DocumentType must throw InvalidNodeTypeError");
return;
}
selection.selectAllChildren(node);
// This implicitly tests that the selection is forwards, by using
// anchorOffset/focusOffset instead of getRangeAt.
assert_equals(selection.rangeCount, 1,
"After selectAllChildren, rangeCount must be 1");
assert_equals(selection.anchorNode, node,
"After selectAllChildren, anchorNode must be the given node");
assert_equals(selection.anchorOffset, 0,
"After selectAllChildren, anchorOffset must be 0");
assert_equals(selection.focusNode, node,
"After selectAllChildren, focusNode must be the given node");
assert_equals(selection.focusOffset, node.childNodes.length,
"After selectAllChildren, focusOffset must be the given node's number of children");
if (originalRange) {
assert_not_equals(getSelection().getRangeAt(0), originalRange,
"selectAllChildren must replace any existing range, not mutate it");
}
}, "Range " + i + " " + testRanges[i] + ", node " + j + " " + testNodes[j]);
}
}
testDiv.style.display = "none";
</script>