Ilia Mashkov
7798c4bbdf
The native Popover always renders its content (the vertical slider), so the slider's value label is in the DOM even when closed, and opening is driven by the browser's declarative popovertarget invoker (not simulated by jsdom on click). Update the tests to scope value assertions to the trigger and drive open via showPopover(), matching Popover.svelte.test.ts.