aria-pressed attribute isn't updated correctly.

The Needs Review Queue Bot → tested this issue. It either no longer applies to Drupal core, or fails the Drupal core commit checks. Therefore, this issue status is now "Needs work".

Apart from a re-roll or rebase, this issue may need more work to address feedback in the issue or MR comments. To progress an issue, incorporate this feedback as part of the process of updating the issue. This helps other contributors to know what is outstanding.

Consult the Drupal Contributor Guide → to find step-by-step guides for working with issues.

Patch for Drupal version 10.1.x

Applied patch #37 successfully

Verified and tested patch #37 on 10.1.x-dev. Patch applied cleanly.

Test Result:
"aria-pressed" attribute of toolbar buttons is updated correctly. "aria-pressed" attribute is set to "true" when button is pressed else it is "false".

Please find attached before and after patch screenshots.
RTBC

Looks like we're good on screenshots/videos and don't need any more of them in the issue.
I spotted some things in the test:

1. +++ b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php
   @@ -42,10 +42,16 @@ public function testToolbarToggling() {
   +    $manage_link->getAttribute('aria-pressed');
   +    $this->assertEquals('true', $manage_link->getAttribute('aria-pressed'));
   

   Why is this getting the attribute without assigning it to a varianble and then getting it again in the assertEquals(). Seeme like the one line is that is needed.

2. +++ b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php
   @@ -42,10 +42,16 @@ public function testToolbarToggling() {
   -    $page->clickLink('Manage');
   +    $manage_link->click();
   +    $this->assertEquals('false', $manage_link->getAttribute('aria-pressed'));
        $this->assertFalse($content->isVisible(), 'Toolbar tray is closed after clicking the "Manage" link.');
   -    $page->clickLink('Manage');
   +    $manage_link->click();
   +    $this->assertEquals('true', $manage_link->getAttribute('aria-pressed'));
   

   All of the checks for aria-pressed should have some sort of waitFor incorporated into it. In some instances a test may check for the attribute value before the JS has completed the change.

Marking this for https://www.w3.org/WAI/WCAG21/Understanding/name-role-value

Also including this reference.
https://www.accessibility-developer-guide.com/examples/sensible-aria-usa...