Fix clippy and enable test checking

[andrzejressel]

No description provided.

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[mergify]

This pull request has been removed from the queue for the following reason: pull request dequeued.

Pull request #773 has been dequeued due to: The pull request reports more than 21900 files, reaching the limit of 10000 files.

You should look at the reason for the failure and decide if the pull request needs to be fixed or if you want to requeue it.

If you want to requeue this pull request, you need to post a comment with the text: @mergifyio requeue