| <!doctype html> |
| <title>HighlightRegistry 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> |
| <script> |
| 'use strict'; |
| |
| test(() => { |
| assert_not_equals(window.HighlightRegistry, undefined, 'HighlightRegistry is in window'); |
| assert_true(typeof HighlightRegistry === 'function', 'HighlightRegistry is a function'); |
| assert_throws_js(TypeError, function () { var x = new HighlightRegistry(); }, |
| 'HighlightRegistry constructor throws'); |
| |
| assert_not_equals(CSS.highlights, undefined, 'CSS.highlights exists'); |
| assert_equals(CSS.highlights.__proto__, window.HighlightRegistry.prototype, |
| 'CSS.highlights and window.HighlightRegistry have same prototype'); |
| |
| assert_equals(CSS.highlights.size, 0, 'HighlightRegistry starts empty'); |
| }, 'HighlightRegistry initializes as it should.'); |
| |
| test(() => { |
| let customHighlight1 = new Highlight("example1"); |
| let customHighlight2 = new Highlight("example2"); |
| let customHighlight3 = new Highlight("example1"); |
| |
| assert_false(CSS.highlights.has(customHighlight1), 'HighlightRegistry.has returns false when it doesn\'t have the element which is called with as argument.'); |
| CSS.highlights.add(customHighlight1); |
| assert_true(CSS.highlights.has(customHighlight1), 'HighlightRegistry.has returns true when it has the element which is called with as argument.'); |
| assert_equals(CSS.highlights.size, 1, 'HighlightRegistry.size is 1 after only adding 1 element.'); |
| |
| assert_false(CSS.highlights.delete(customHighlight2), 'HighlightRegistry.delete returns false when trying to delete an element that is not in the set.'); |
| assert_equals(CSS.highlights.size, 1, 'HighlightRegistry.size stays the same after trying to delete a non-existing element.'); |
| |
| CSS.highlights.add(customHighlight2); |
| assert_true(CSS.highlights.has(customHighlight1), 'HighlightRegistry.has returns true when it is called with the element added first'); |
| assert_true(CSS.highlights.has(customHighlight2), 'HighlightRegistry.has returns true when it is called with the element added second'); |
| assert_equals(CSS.highlights.size, 2, 'HighlightRegistry.size is 2 after only adding two different elements.'); |
| |
| assert_true(CSS.highlights.delete(customHighlight2), 'HighlightRegistry.delete returns true when trying to delete an element that is in the group.'); |
| assert_true(CSS.highlights.has(customHighlight1), 'HighlightRegistry.has returns true when it is called with the element added first'); |
| assert_false(CSS.highlights.has(customHighlight2), 'HighlightRegistry.has returns true when it is called with the element that was deleted'); |
| assert_equals(CSS.highlights.size, 1, 'HighlightRegistry.size decreases in 1 after deleting an existing element.'); |
| |
| assert_false(CSS.highlights.delete(customHighlight2), 'HighlightRegistry.delete returns false when trying to delete an element that was already deleted.'); |
| assert_true(CSS.highlights.has(customHighlight1), 'HighlightRegistry.has returns true when it is called with the element added first'); |
| assert_false(CSS.highlights.has(customHighlight2), 'HighlightRegistry.has returns false when it is called with an element that was deleted twice'); |
| assert_equals(CSS.highlights.size, 1, 'HighlightRegistry.size stays the same after trying to delete the same element for a second time.'); |
| |
| assert_true(CSS.highlights.delete(customHighlight1), 'HighlightRegistry.delete returns true when trying to delete the remaining element'); |
| assert_false(CSS.highlights.has(customHighlight1), 'HighlightRegistry.has returns false when it is called with the element added first and then deleted'); |
| assert_false(CSS.highlights.has(customHighlight2), 'HighlightRegistry.has returns false when it is called with the element added second and then deleted'); |
| assert_equals(CSS.highlights.size, 0, 'HighlightRegistry.size decreases in 1 after deleting an existing element.'); |
| |
| CSS.highlights.add(customHighlight1); |
| assert_throws_dom('OperationError', () => { CSS.highlights.add(customHighlight3); }, 'add throws when trying to add a Highlight with the same name as one present in the registry'); |
| assert_equals(CSS.highlights.size, 1, 'HighlightRegistry.size keeps the same after an unsuccessful addition of a Highlight with an existing name'); |
| assert_true(CSS.highlights.has(customHighlight1), 'The Highlight that has the same name as the one that was tried to be added later is still in the registry'); |
| assert_false(CSS.highlights.has(customHighlight3), 'The Highlight with same name as an existing one was effectively not added to the registry'); |
| |
| CSS.highlights.clear(); |
| assert_equals(CSS.highlights.size, 0, 'HighlightRegistry.clear empties the set.'); |
| CSS.highlights.clear(); |
| assert_equals(CSS.highlights.size, 0, 'HighlightRegistry.clear called with an empty registry keeps it empty.'); |
| }, 'HighlightRegistry has a setlike interface.'); |
| |
| </script> |
