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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/custom-elements/state/tentative/ElementInternals-states.html
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/custom-elements/state/tentative/ElementInternals-states.html')
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diff --git a/testing/web-platform/tests/custom-elements/state/tentative/ElementInternals-states.html b/testing/web-platform/tests/custom-elements/state/tentative/ElementInternals-states.html
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+++ b/testing/web-platform/tests/custom-elements/state/tentative/ElementInternals-states.html
@@ -0,0 +1,82 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+class TestElement extends HTMLElement {
+ constructor() {
+ super();
+ this._internals = this.attachInternals();
+ }
+
+ get internals() {
+ return this._internals;
+ }
+}
+customElements.define("test-element", TestElement);
+
+test(() => {
+ let i = (new TestElement()).internals;
+
+ assert_true(i.states instanceof CustomStateSet);
+ assert_equals(i.states.size, 0);
+ assert_false(i.states.has('foo'));
+ assert_false(i.states.has('--foo'));
+ assert_equals(i.states.toString(), '[object CustomStateSet]');
+}, 'CustomStateSet behavior of ElementInternals.states: Initial state');
+
+test(() => {
+ let i = (new TestElement()).internals;
+ assert_throws_js(TypeError, () => { i.states.supports('foo'); });
+ assert_throws_dom('SyntaxError', () => { i.states.add(''); });
+ assert_throws_dom('SyntaxError', () => { i.states.add('--a\tb'); });
+}, 'CustomStateSet behavior of ElementInternals.states: Exceptions');
+
+test(() => {
+ let i = (new TestElement()).internals;
+ i.states.add('--foo');
+ i.states.add('--bar');
+ i.states.add('--foo');
+ assert_equals(i.states.size, 2);
+ assert_true(i.states.has('--foo'));
+ assert_true(i.states.has('--bar'));
+ assert_array_equals([...i.states], ['--foo', '--bar']);
+ i.states.delete('--foo');
+ assert_array_equals([...i.states], ['--bar']);
+ i.states.add('--foo');
+ assert_array_equals([...i.states], ['--bar', '--foo']);
+ i.states.delete('--bar');
+ i.states.add('--baz');
+ assert_array_equals([...i.states], ['--foo', '--baz']);
+}, 'CustomStateSet behavior of ElementInternals.states: Modifications');
+
+test(() => {
+ let i = (new TestElement()).internals;
+ i.states.add('--one');
+ i.states.add('--two');
+ i.states.add('--three');
+ let iter = i.states.values();
+
+ // Delete the next item.
+ i.states.delete('--one');
+ let item = iter.next();
+ assert_false(item.done);
+ assert_equals(item.value, '--two');
+
+ // Clear the set.
+ i.states.clear();
+ item = iter.next();
+ assert_true(item.done);
+
+ // Delete the previous item.
+ i.states.add('--one');
+ i.states.add('--two');
+ i.states.add('--three');
+ iter = i.states.values();
+ item = iter.next();
+ assert_equals(item.value, '--one');
+ i.states.delete('--one');
+ item = iter.next();
+ assert_equals(item.value, '--two');
+}, 'Updating a CustomStateSet while iterating it should work');
+</script>
+