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<!doctype html>
<title> Highlight has a setlike interface </title>
<link rel="help" href="https://drafts.csswg.org/css-highlight-api-1/">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id='testDiv'>abc</div>
<script>
'use strict';
let priority = 123;
test(() => {
let customHighlight = new Highlight();
assert_equals(customHighlight.priority, 0, 'Highlight uses 0 as priority by default.');
customHighlight.priority = priority;
assert_equals(customHighlight.priority, priority, 'Highlight sets priority correctly.');
assert_equals(customHighlight.size, 0, 'Highlight starts empty');
}, 'Highlight initializes empty (if no ranges are provided) and with priority 0.');
let range0 = new Range();
let range1 = new Range();
let range2 = new Range();
let container = document.getElementById('testDiv');
let staticRange0 = new StaticRange({startContainer: container, startOffset: 0, endContainer: container, endOffset: 0});
let staticRange1 = new StaticRange({startContainer: container, startOffset: 0, endContainer: container, endOffset: 0});
let staticRange2 = new StaticRange({startContainer: container, startOffset: 0, endContainer: container, endOffset: 0});
let rangeCollections = [[range0,range1,range2], [staticRange0,staticRange1,staticRange2], [range0,staticRange1,range2], [staticRange0,range1,staticRange2]]
var i;
for(i=0; i<rangeCollections.length; i++){
let rangesCombinationDescription = " (using the following combination of ranges [";
var j;
for(j=0; j<rangeCollections[i].length; j++){
if(j!=0) rangesCombinationDescription += ", ";
rangesCombinationDescription = rangesCombinationDescription + Object.prototype.toString.call(rangeCollections[i][j]);
}
rangesCombinationDescription += "])";
test(() => {
let customHighlight = new Highlight();
assert_false(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns false when it doesn\'t contain the range which is passed as the argument');
assert_false(customHighlight.has(rangeCollections[i][1]), 'Highlight.has returns false when it doesn\'t contain the range which is passed as the argument');
assert_false(customHighlight.has(rangeCollections[i][2]), 'Highlight.has returns false when it doesn\'t contain the range which is passed as the argument');
customHighlight.add(rangeCollections[i][0]);
assert_true(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns true when it contains the range which is passed as the argument');
assert_false(customHighlight.has(rangeCollections[i][1]), 'Highlight.has returns false when it doesn\'t contain the range which is passed as the argument');
assert_false(customHighlight.has(rangeCollections[i][2]), 'Highlight.has returns false when it doesn\'t contain the range which is passed as the argument');
assert_equals(customHighlight.size, 1, 'Highlight.size is 1 after only adding 1 range');
customHighlight.add(rangeCollections[i][0]);
assert_equals(customHighlight.size, 1, 'Highlight.size is 1 after only adding same range twice');
customHighlight.add(rangeCollections[i][1]);
assert_true(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns true when it contains the range which is passed as the argument');
assert_true(customHighlight.has(rangeCollections[i][1]), 'Highlight.has returns true when it contains the range which is passed as the argument');
assert_false(customHighlight.has(rangeCollections[i][2]), 'Highlight.has returns false when it doesn\'t contain the range which is passed as the argument');
assert_equals(customHighlight.size, 2, 'Highlight.size is 2 after only adding two different ranges');
}, 'Highlight add and has methods work as expected' + rangesCombinationDescription);
test(() => {
let customHighlight = new Highlight(rangeCollections[i][0], rangeCollections[i][1]);
assert_false(customHighlight.delete(rangeCollections[i][2]), 'Highlight.delete returns false when trying to delete a range that is not in the highlight');
assert_true(customHighlight.delete(rangeCollections[i][1]), 'Highlight.delete returns true when trying to delete a range that is in the highlight');
assert_false(customHighlight.delete(rangeCollections[i][1]), 'Highlight.delete returns false when trying to delete a range that was in the highlight before but it\'s not there anymore');
assert_true(customHighlight.delete(rangeCollections[i][0]), 'Highlight.delete returns true when trying to delete a range that is in the highlight');
assert_false(customHighlight.delete(rangeCollections[i][0]), 'Highlight.delete returns false when trying to delete a range that was in the highlight before but it\'s not there anymore');
}, 'Highlight delete method works as expected' + rangesCombinationDescription);
test(() => {
let customHighlight = new Highlight(rangeCollections[i][0], rangeCollections[i][0]);
assert_true(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns true when it is called with the range used twice in the constructor');
assert_equals(customHighlight.size, 1, 'Highlight behaves like a set when constructing it with two equal ranges.');
customHighlight = new Highlight(rangeCollections[i][0], rangeCollections[i][1], rangeCollections[i][0], rangeCollections[i][1]);
assert_true(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns true when it is called with one of the ranges used twice in the constructor');
assert_true(customHighlight.has(rangeCollections[i][1]), 'Highlight.has returns true when it is called with the other range used twice in the constructor');
assert_equals(customHighlight.size, 2, 'Highlight behaves like a set when constructing it with two pairs of equal ranges.');
}, 'Highlight constructor behaves like a set when using equal ranges' + rangesCombinationDescription);
test(() => {
let customHighlight = new Highlight(rangeCollections[i][0]);
assert_true(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns true when it is called with the range used in its constructor');
assert_equals(customHighlight.size, 1, 'Highlight.size is 1 after constructing it with one range');
}, 'Highlight constructor works as expected when called with one range' + rangesCombinationDescription);
test(() => {
let customHighlight = new Highlight(rangeCollections[i][0], rangeCollections[i][1]);
assert_true(customHighlight.has(rangeCollections[i][0]), 'Highlight.has returns true when it is called with the first range used in its constructor');
assert_true(customHighlight.has(rangeCollections[i][1]), 'Highlight.has returns true when it is called with the second range used in its constructor');
assert_equals(customHighlight.size, 2, 'Highlight.size is 2 after constructing it with two ranges');
}, 'Highlight constructor works as expected when called with two ranges' + rangesCombinationDescription);
test(() => {
let customHighlight = new Highlight(rangeCollections[i][0], rangeCollections[i][1]);
assert_equals(customHighlight.size, 2, 'Highlight has size 2 after constructing it with two ranges');
customHighlight.clear();
assert_equals(customHighlight.size, 0, 'Highlight becomes empty after executing clear()');
customHighlight.clear();
assert_equals(customHighlight.size, 0, 'Highlight is still empty after executing clear() twice');
}, 'Highlight clear method works as expected' + rangesCombinationDescription);
}
</script>
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