third_party/WebKit/LayoutTests/shadow-dom/slotchange-slotname-renamed.html - Issue 2076933002: Add more comprehensive tests for slotchange events

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Side by Side Diff: third_party/WebKit/LayoutTests/shadow-dom/slotchange-slotname-renamed.html

Issue 2076933002: Add more comprehensive tests for slotchange events (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 6 months ago

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1 <!DOCTYPE html>

2 <script src='../resources/testharness.js'></script>

3 <script src='../resources/testharnessreport.js'></script>

4 <script src='resources/shadow-dom.js'></script>

5 <!-- This is a micro benchmark to catch an unintentional regression.

6 If the reason of a regression is clear, it is okay.

7 We do not have to optimize the result of the benchmark. -->

8 <div id='d1'>

9 <template data-mode='open' data-expose-as='d1_shadow'>

10 <slot name='d1-s1'></slot>

11 </template>

12 <div id='d2' slot='d1-s1'></div>

13 </div>

14 <script>

15 'use strict';

16 convertTemplatesToShadowRootsWithin(d1);

17 removeWhiteSpaceOnlyTextNodes(d1);

18

19 async_test((test) => {

20

21 const d1_s1 = d1_shadow.querySelector('slot');

22

23 assert_array_equals(d1_s1.assignedNodes(), [d2]);

24 assert_array_equals(d1_s1.assignedNodes({'flatten': true}), [d2]);

25

26 d1_s1.addEventListener('slotchange', (e) => {

27 test.step(() => {

28 assert_equals(e.target, d1_s1);

29 assert_array_equals(d1_s1.assignedNodes(), []);

30 assert_array_equals(d1_s1.assignedNodes({'flatten': true}), []);

31 test.done();

32 });

33 });

34

35 d2.setAttribute('slot', 'non-exist');

36 }, "slotchange event caused by renaming slot name");

37 </script>

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