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<!doctype html>
<title>Range.collapse() and .collapsed tests</title>
<link rel="author" title="Aryeh Gregor" href=ayg@aryeh.name>
<meta name=timeout content=long>
<div id=log></div>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=../common.js></script>
<script>
"use strict";
function testCollapse(rangeEndpoints, toStart) {
var range;
if (rangeEndpoints == "detached") {
range = document.createRange();
range.detach(); // should be a no-op and therefore the following should not throw
range.collapse(toStart);
assert_equals(true, range.collapsed);
}
// Have to account for Ranges involving Documents!
var ownerDoc = rangeEndpoints[0].nodeType == Node.DOCUMENT_NODE
? rangeEndpoints[0]
: rangeEndpoints[0].ownerDocument;
range = ownerDoc.createRange();
range.setStart(rangeEndpoints[0], rangeEndpoints[1]);
range.setEnd(rangeEndpoints[2], rangeEndpoints[3]);
var expectedContainer = toStart ? range.startContainer : range.endContainer;
var expectedOffset = toStart ? range.startOffset : range.endOffset;
assert_equals(range.collapsed, range.startContainer == range.endContainer
&& range.startOffset == range.endOffset,
"collapsed must be true if and only if the start and end are equal");
if (toStart === undefined) {
range.collapse();
} else {
range.collapse(toStart);
}
assert_equals(range.startContainer, expectedContainer,
"Wrong startContainer");
assert_equals(range.endContainer, expectedContainer,
"Wrong endContainer");
assert_equals(range.startOffset, expectedOffset,
"Wrong startOffset");
assert_equals(range.endOffset, expectedOffset,
"Wrong endOffset");
assert_true(range.collapsed,
".collapsed must be set after .collapsed()");
}
var tests = [];
for (var i = 0; i < testRanges.length; i++) {
tests.push([
"Range " + i + " " + testRanges[i] + ", toStart true",
eval(testRanges[i]),
true
]);
tests.push([
"Range " + i + " " + testRanges[i] + ", toStart false",
eval(testRanges[i]),
false
]);
tests.push([
"Range " + i + " " + testRanges[i] + ", toStart omitted",
eval(testRanges[i]),
undefined
]);
}
generate_tests(testCollapse, tests);
testDiv.style.display = "none";
</script>
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