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<!doctype html>
<title>Selection.collapseTo(Start|End)() 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";
// Also test a selection with no ranges
testRanges.unshift("[]");
for (var i = 0; i < testRanges.length; i++) {
test(function() {
selection.removeAllRanges();
var endpoints = eval(testRanges[i]);
if (!endpoints.length) {
assert_throws("INVALID_STATE_ERR", function() {
selection.collapseToStart();
}, "Must throw InvalidStateErr if the selection's range is null");
return;
}
var addedRange = ownerDocument(endpoints[0]).createRange();
addedRange.setStart(endpoints[0], endpoints[1]);
addedRange.setEnd(endpoints[2], endpoints[3]);
selection.addRange(addedRange);
// We don't penalize browsers here for mishandling addRange() and
// adding a different range than we specified. They fail addRange()
// tests for that, and don't have to fail collapseToStart/End() tests
// too. They do fail if they throw unexpectedly, though. I also fail
// them if there's no range at all, because otherwise they could pass
// all tests if addRange() always does nothing and collapseToStart()
// always throws.
assert_equals(selection.rangeCount, 1,
"Sanity check: rangeCount must equal 1 after addRange()");
var expectedEndpoint = [
selection.getRangeAt(0).startContainer,
selection.getRangeAt(0).startOffset
];
selection.collapseToStart();
assert_equals(selection.rangeCount, 1,
"selection.rangeCount must equal 1");
assert_equals(selection.focusNode, expectedEndpoint[0],
"focusNode must equal the original start node");
assert_equals(selection.focusOffset, expectedEndpoint[1],
"focusOffset must equal the original start offset");
assert_equals(selection.anchorNode, expectedEndpoint[0],
"anchorNode must equal the original start node");
assert_equals(selection.anchorOffset, expectedEndpoint[1],
"anchorOffset must equal the original start offset");
assert_equals(addedRange.startContainer, endpoints[0],
"collapseToStart() must not change the startContainer of the selection's original range");
assert_equals(addedRange.startOffset, endpoints[1],
"collapseToStart() must not change the startOffset of the selection's original range");
assert_equals(addedRange.endContainer, endpoints[2],
"collapseToStart() must not change the endContainer of the selection's original range");
assert_equals(addedRange.endOffset, endpoints[3],
"collapseToStart() must not change the endOffset of the selection's original range");
}, "Range " + i + " " + testRanges[i] + " collapseToStart()");
// Copy-paste of above
test(function() {
selection.removeAllRanges();
var endpoints = eval(testRanges[i]);
if (!endpoints.length) {
assert_throws("INVALID_STATE_ERR", function() {
selection.collapseToEnd();
}, "Must throw InvalidStateErr if the selection's range is null");
return;
}
var addedRange = ownerDocument(endpoints[0]).createRange();
addedRange.setStart(endpoints[0], endpoints[1]);
addedRange.setEnd(endpoints[2], endpoints[3]);
selection.addRange(addedRange);
// We don't penalize browsers here for mishandling addRange() and
// adding a different range than we specified. They fail addRange()
// tests for that, and don't have to fail collapseToStart/End() tests
// too. They do fail if they throw unexpectedly, though. I also fail
// them if there's no range at all, because otherwise they could pass
// all tests if addRange() always does nothing and collapseToStart()
// always throws.
assert_equals(selection.rangeCount, 1,
"Sanity check: rangeCount must equal 1 after addRange()");
var expectedEndpoint = [
selection.getRangeAt(0).endContainer,
selection.getRangeAt(0).endOffset
];
selection.collapseToEnd();
assert_equals(selection.rangeCount, 1,
"selection.rangeCount must equal 1");
assert_equals(selection.focusNode, expectedEndpoint[0],
"focusNode must equal the original end node");
assert_equals(selection.focusOffset, expectedEndpoint[1],
"focusOffset must equal the original end offset");
assert_equals(selection.anchorNode, expectedEndpoint[0],
"anchorNode must equal the original end node");
assert_equals(selection.anchorOffset, expectedEndpoint[1],
"anchorOffset must equal the original end offset");
assert_equals(addedRange.startContainer, endpoints[0],
"collapseToEnd() must not change the startContainer of the selection's original range");
assert_equals(addedRange.startOffset, endpoints[1],
"collapseToEnd() must not change the startOffset of the selection's original range");
assert_equals(addedRange.endContainer, endpoints[2],
"collapseToEnd() must not change the endContainer of the selection's original range");
assert_equals(addedRange.endOffset, endpoints[3],
"collapseToEnd() must not change the endOffset of the selection's original range");
}, "Range " + i + " " + testRanges[i] + " collapseToEnd()");
}
testDiv.style.display = "none";
</script>
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