Print "no tests found" in HTML reporter

[sheremet-va]

Describe the bug

This is a follow up issue to #7246

If there are no tests, HTML reporter is generated, but it looks "stuck" (border move like it's awaiting something).

We need to print "no tests found" instead.

Reproduction

https://stackblitz.com/fork/github/vitest-dev/vitest/tree/main/examples/basic?initialPath=__vitest__/

System Info

Any

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
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• The provided reproduction is a minimal reproducible example of the bug.

[DevJoaoLopes]

@sheremet-va Just to understand, here the intention would be to remove the counters by inserting a message ? Would you need to keep the sidebar ?

[hi-ogawa]

@DevJoaoLopes We probably don't have to remove anything as long it's clear that Vitest is finished by not finding any test. Note that current UI is indicating something is on-going by moving the top border.

[DevJoaoLopes]

@DevJoaoLopes We probably don't have to remove anything as long it's clear that Vitest is finished by not finding any test. Note that current UI is indicating something is on-going by moving the top border.

@hi-ogawa I understood, so in the case just removing the top edge indication and adding the "No test found" message below the counters would solve the problem?

[hi-ogawa]

@DevJoaoLopes Probably that works. Exact UI can be fleshed out later and starting with something minimal should help the review process.

[sheremet-va]

There is already code for displaying errors. We just need to display this one

[DevJoaoLopes]

@sheremet-va @hi-ogawa Behavior implemented in #7366 , can you take a look ?