test: Restructure tests

[Mr-Pepe]

Moved all tests into a test/unit directory.

[Mr-Pepe]

Current dependencies on/for this PR:

• main
  • PR #57
  • PR #58
    • PR #59
    • PR #60
      • PR #61
      • PR #62
        • PR #63
        • PR #64 👈
          • PR #65

This stack of pull requests is managed by Graphite.

[Mr-Pepe]

Merge activity

• Jan 12, 7:50 AM: @Mr-Pepe started a stack merge that includes this pull request via Graphite.
• Jan 12, 8:04 AM: Graphite rebased this pull request as part of a merge.
• Jan 12, 8:05 AM: @Mr-Pepe merged this pull request with Graphite.