css/css-highlight-api/HighlightRegistry-iteration-with-modifications.html - external/w3c/web-platform-tests - Git at Google

 <!doctype html>
 <title>HighlightRegistry iteration with insertions and deletions inbetween</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';
   let customHighlight1 = new Highlight();
   let customHighlight2 = new Highlight();
   let highlightName1 = "example1";
   let highlightName2 = "example2";

   // Test insertions using .add
   test(() => {
     let iterator = CSS.highlights[Symbol.iterator]();
     CSS.highlights.set(highlightName1, customHighlight1);
     let element = iterator.next();
     assert_true(element.done, 'The iteration ends although we added a new Highlight after starting the iteration');
     assert_equals(element.value, undefined, 'A Highlight added after starting the iteration is not found during the current iteration');
   }, 'HighlightRegistry iteration is not modified when a new Highlight is added after starting the iteration');

   CSS.highlights.clear();

   test(() => {
     CSS.highlights.set(highlightName1, customHighlight1);
     let iterator = CSS.highlights[Symbol.iterator]();
     CSS.highlights.set(highlightName2, customHighlight2);
     let element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end although there was a second Highlight added to the HighlightRegistry after starting the iteration');
     assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned although a second Highlight was added after starting the iteration');
     assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned although a second Highlight was added after starting the iteration');
     element = iterator.next();
     assert_true(element.done, 'The iteration ends after going through all the Highlights that were in the HighlightRegistry when the iteration started although there was a Highlight addition after starting the iteration');
     assert_equals(element.value, undefined, 'A Highlight added after starting the iteration is not found during the current iteration');
   }, 'HighlightRegistry iteration is not modified when a new Highlight is added after starting the iteration with one Highlight in the HighlightRegistry');

   CSS.highlights.clear();

   // Test deletions using .delete
   test(() => {
     CSS.highlights.set(highlightName1, customHighlight1);
     let iterator = CSS.highlights[Symbol.iterator]();
     CSS.highlights.delete(highlightName1);
     let element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end although the Highlight that was pointed to by the iterator was deleted');
     assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned although it was deleted after starting the iteration');
     assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned although it was deleted after starting the iteration');
     element = iterator.next();
     assert_true(element.done, 'The iteration ends after going through all the highlights although the Highlight that was pointed to by the iterator was deleted after starting the iteration');
     assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
   }, 'HighlightRegistry iteration is not modified when the Highlight that was pointed to by the iterator was deleted after starting the iteration');

   CSS.highlights.clear();

   test(() => {
     CSS.highlights.set(highlightName1, customHighlight1);
     CSS.highlights.set(highlightName2, customHighlight2);
     let iterator = CSS.highlights[Symbol.iterator]();
     CSS.highlights.delete(highlightName2);
     let element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end although the Highlight following to the one that was pointed to by the iterator was deleted');
     assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
     assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
     element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end when you call .next twice since the beginning of the iteration although the second Highlight was deleted');
     assert_equals(element.value[0], highlightName2, 'The highlight name that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
     assert_equals(element.value[1], customHighlight2, 'The Highlight that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
     element = iterator.next();
     assert_true(element.done, 'The iteration ends after going through all the highlights although the second Highlight was deleted immediately after starting the iteration');
     assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
   }, 'HighlightRegistry iteration is not modified when the Highlight that was immediately after the one pointed to by the iterator was deleted after starting the iteration');

   CSS.highlights.clear();

   test(() => {
     CSS.highlights.set(highlightName1, customHighlight1);
     CSS.highlights.set(highlightName2, customHighlight2);
     let iterator = CSS.highlights[Symbol.iterator]();
     let element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end when there are still two Highlights to visit');
     assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned as it should');
     assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned as it should');
     CSS.highlights.delete(highlightName1);
     element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end when the Highlight previously visited is deleted and there is still a Highlight to visit');
     assert_equals(element.value[0], highlightName2, 'The highlight name that was pointed to by the iterator is returned as it should although the previous Highlight was deleted after calling .next');
     assert_equals(element.value[1], customHighlight2, 'The Highlight that was pointed to by the iterator is returned as it should although the previous Highlight was deleted after calling .next');
     element = iterator.next();
     assert_true(element.done, 'The iteration ends after going through all the highlights although the first Highlight was deleted after the first call to .next');
     assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
   }, 'HighlightRegistry iteration is not modified when a Highlight that was already visited is deleted and there are still Highlights to visit');

   CSS.highlights.clear();

   // Test deletions using .clear
   test(() => {
     CSS.highlights.set(highlightName1, customHighlight1);
     let iterator = CSS.highlights[Symbol.iterator]();
     CSS.highlights.clear();
     let element = iterator.next();
     assert_false(element.done, 'The iteration doesn\'t end although the Highlight that was pointed to by the iterator was deleted using .clear()');
     assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned although it was deleted using .clear() after starting the iteration');
     assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned although it was deleted using .clear() after starting the iteration');
     element = iterator.next();
     assert_true(element.done, 'The iteration ends after going through all the highlights although the Highlight that was pointed to by the iterator was deleted using .clear() after starting the iteration');
     assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
   }, 'HighlightRegistry iteration is not modified when the Highlight that was pointed to by the iterator was deleted using .clear() after starting the iteration');

 </script>
	<!doctype html>
	<title>HighlightRegistry iteration with insertions and deletions inbetween</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';
	let customHighlight1 = new Highlight();
	let customHighlight2 = new Highlight();
	let highlightName1 = "example1";
	let highlightName2 = "example2";

	// Test insertions using .add
	test(() => {
	let iterator = CSS.highlights[Symbol.iterator]();
	CSS.highlights.set(highlightName1, customHighlight1);
	let element = iterator.next();
	assert_true(element.done, 'The iteration ends although we added a new Highlight after starting the iteration');
	assert_equals(element.value, undefined, 'A Highlight added after starting the iteration is not found during the current iteration');
	}, 'HighlightRegistry iteration is not modified when a new Highlight is added after starting the iteration');

	CSS.highlights.clear();

	test(() => {
	CSS.highlights.set(highlightName1, customHighlight1);
	let iterator = CSS.highlights[Symbol.iterator]();
	CSS.highlights.set(highlightName2, customHighlight2);
	let element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end although there was a second Highlight added to the HighlightRegistry after starting the iteration');
	assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned although a second Highlight was added after starting the iteration');
	assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned although a second Highlight was added after starting the iteration');
	element = iterator.next();
	assert_true(element.done, 'The iteration ends after going through all the Highlights that were in the HighlightRegistry when the iteration started although there was a Highlight addition after starting the iteration');
	assert_equals(element.value, undefined, 'A Highlight added after starting the iteration is not found during the current iteration');
	}, 'HighlightRegistry iteration is not modified when a new Highlight is added after starting the iteration with one Highlight in the HighlightRegistry');

	CSS.highlights.clear();

	// Test deletions using .delete
	test(() => {
	CSS.highlights.set(highlightName1, customHighlight1);
	let iterator = CSS.highlights[Symbol.iterator]();
	CSS.highlights.delete(highlightName1);
	let element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end although the Highlight that was pointed to by the iterator was deleted');
	assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned although it was deleted after starting the iteration');
	assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned although it was deleted after starting the iteration');
	element = iterator.next();
	assert_true(element.done, 'The iteration ends after going through all the highlights although the Highlight that was pointed to by the iterator was deleted after starting the iteration');
	assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
	}, 'HighlightRegistry iteration is not modified when the Highlight that was pointed to by the iterator was deleted after starting the iteration');

	CSS.highlights.clear();

	test(() => {
	CSS.highlights.set(highlightName1, customHighlight1);
	CSS.highlights.set(highlightName2, customHighlight2);
	let iterator = CSS.highlights[Symbol.iterator]();
	CSS.highlights.delete(highlightName2);
	let element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end although the Highlight following to the one that was pointed to by the iterator was deleted');
	assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
	assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
	element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end when you call .next twice since the beginning of the iteration although the second Highlight was deleted');
	assert_equals(element.value[0], highlightName2, 'The highlight name that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
	assert_equals(element.value[1], customHighlight2, 'The Highlight that was pointed to by the iterator is returned as it should although the next Highlight was deleted immediately after starting the iteration');
	element = iterator.next();
	assert_true(element.done, 'The iteration ends after going through all the highlights although the second Highlight was deleted immediately after starting the iteration');
	assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
	}, 'HighlightRegistry iteration is not modified when the Highlight that was immediately after the one pointed to by the iterator was deleted after starting the iteration');

	CSS.highlights.clear();

	test(() => {
	CSS.highlights.set(highlightName1, customHighlight1);
	CSS.highlights.set(highlightName2, customHighlight2);
	let iterator = CSS.highlights[Symbol.iterator]();
	let element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end when there are still two Highlights to visit');
	assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned as it should');
	assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned as it should');
	CSS.highlights.delete(highlightName1);
	element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end when the Highlight previously visited is deleted and there is still a Highlight to visit');
	assert_equals(element.value[0], highlightName2, 'The highlight name that was pointed to by the iterator is returned as it should although the previous Highlight was deleted after calling .next');
	assert_equals(element.value[1], customHighlight2, 'The Highlight that was pointed to by the iterator is returned as it should although the previous Highlight was deleted after calling .next');
	element = iterator.next();
	assert_true(element.done, 'The iteration ends after going through all the highlights although the first Highlight was deleted after the first call to .next');
	assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
	}, 'HighlightRegistry iteration is not modified when a Highlight that was already visited is deleted and there are still Highlights to visit');

	CSS.highlights.clear();

	// Test deletions using .clear
	test(() => {
	CSS.highlights.set(highlightName1, customHighlight1);
	let iterator = CSS.highlights[Symbol.iterator]();
	CSS.highlights.clear();
	let element = iterator.next();
	assert_false(element.done, 'The iteration doesn\'t end although the Highlight that was pointed to by the iterator was deleted using .clear()');
	assert_equals(element.value[0], highlightName1, 'The highlight name that was pointed to by the iterator is returned although it was deleted using .clear() after starting the iteration');
	assert_equals(element.value[1], customHighlight1, 'The Highlight that was pointed to by the iterator is returned although it was deleted using .clear() after starting the iteration');
	element = iterator.next();
	assert_true(element.done, 'The iteration ends after going through all the highlights although the Highlight that was pointed to by the iterator was deleted using .clear() after starting the iteration');
	assert_equals(element.value, undefined, '.next() returns undefined when the iteration ends');
	}, 'HighlightRegistry iteration is not modified when the Highlight that was pointed to by the iterator was deleted using .clear() after starting the iteration');

	</script>