Remove snapshot files when a test file stops using snapshots

[novemberborn]

When --update-snapshots is passed, if AVA executes a test file for which there are snapshots, but no snapshot assertion is run, we should remove the snapshot files.

What's tricky though is if tests are skipped, or if snapshot assertions are skipped, we should not remove the snapshot files.

See https://github.com/avajs/ava/blob/9d3b1bad681e1aad18ad8cd53407a7ccb1fc5782/lib/runner.js#L205:L207.

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• #2623 Remove snapshot files when a test file stops using snapshots

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[lo1tuma]

I wonder if Runner is the correct place to implement this. If I remove a test file then the highlighted code in Runner would be never executed, right?

[novemberborn]

Correct, but this issue is for the scenario where the test file still exists.

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[ninevra]

I'd like to work on this, if that's alright?

[novemberborn]

@ninevra yea that'd be great!