Details summary content not visible when open is set to false

[mrozbarry]

Subject of the issue

<summary> tag should be considered visible in a <details> tag, even when open is false.

Steps to reproduce

Given:

<template>
  <details>
    <summary>Test</summary>
  </details>
</template>

wrapper.find('details summary').isVisible() will return false, even though the spec for details says that summary should always be visible. Content other than <summary> should toggle visibility, following the open property.

Expected behaviour

isVisible should return true for the contents of the summary tag

Actual behaviour

isVisible returns false.

Possible Solution

If I query the <summary> tag or anything in it, it should report as visible. For now, I can just use the exists() method, but asserting against this doesn't convey the same intention as isVisible().

[ebisbe]

Can you provide a link with a reproduction?