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redhat-developerredhat-developer/rhdh-skills/skills/plugins/rhdh-test-placement/SKILL.md

rhdh-test-placement

Skill20 starsChanged 20 days agoApache-2.0View on GitHub

Advises where a permanent automated test for the Red Hat Developer Hub dynamic-plugin ecosystem should live: which repository (rhdh, rhdh-plugins, or rhdh-plugin-export-overlays), which layer (L1 unit, L2 startTestBackend integration, L3 React Testing Library component, L4a cluster-free Playwright, or L4b cluster e2e), which harness, and which neighbouring file to mirror. Use for "where should this test live", "which repo and layer for this test", "does this need a cluster", "is this e2e too expensive", or a review comment that a test sits at the wrong layer. Advice only — it recommends a placement and names a template; it writes no test and changes no file.

The file

We split this skill into the rules it gives an agent

3 rules. About 0 are common, 2 are distinctive, and 1 is very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈2

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Verify every referenced path against the target repository's current default branch before recommending it.

    line 73
  2. Distinctive:

    If a defect is catchable at more than one layer, recommend the cheapest and say explicitly not to duplicate it downstream.

    line 79
  3. Very specific:

    Never recommend a UI-render test in rhdh-plugin-export-overlays.

    line 81

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

RHDH Test Placement

Advisory only. This skill answers where a lasting test belongs and what it should be modelled on. It does not write the test, run it, or change a file. The guiding rule: pick the cheapest environment that can actually catch the bug. Most plugin validation needs no cluster, and a growing share needs no Docker either.

Prerequisite: /grilling

Placement is a tradeoff, not a lookup. Cost, feedback time, coverage overlap, and what a layer can physically observe all pull in different directions, and the person asking usually has a preferred answer already.

Invoke /grilling before recommending a placement, and use the constraints it produces. If /grilling is not installed, stop: say the skill is required, name /setup-rhdh-skills install as the human's next step, and do not guess a placement in the meantime.

Scope

In scopeOut of scope
Where a permanent regression or coverage test belongsWriting or running the test
Which repository and layer, and why not the othersFixing the defect under test
Which existing file to mirrorA throwaway reproduction test
The rough feedback cost of each candidateReviewing an RHDH Jira test plan

A one-off test that reproduces a defect and is then deleted is not this skill's subject; /rhdh-plugin-bug-fix owns that and removes the file before handing its change off. Come here for the durable test that stays behind afterwards.

Route by outcome

OutcomeLoad and follow
Recommend a repository, layer, harness, and templatereferences/test-placement.md

references/test-placement.md carries the context questions to settle first, the repository decision table, the L1–L4b layer ladder, per-placement authoring notes with the file to copy, the commands that run each layer, and the things that are researched as not possible today.

Boundaries

  • /grilling is a hard prerequisite, not an option.
  • /rhdh-plugin-authoring owns writing the recommended test once the placement is settled.
  • /rhdh-plugin-bug-fix owns the throwaway reproduction and its evidence.
  • /rhdh-test-plan-review reviews an RHDH release test plan in Jira. That is a release-readiness review, not a placement question.

Invoke a named skill and describe the handoff in the conversation. Never open another skill's files.

Invariants

  • Verify every referenced path against the target repository's current default branch before recommending it. Harnesses in this domain move, and some cited here were still in review when they were written down.
  • Justify the test by the failure it would catch, never by a coverage number. Codecov is informational on both rhdh and rhdh-plugins; no coverage delta can block a pull request, and a test argued that way gets rejected in review.
  • If a defect is catchable at more than one layer, recommend the cheapest and say explicitly not to duplicate it downstream.
  • Never recommend a UI-render test in rhdh-plugin-export-overlays; that repository has no app to render into.
  • Say "no good placement exists" when that is the answer. Recommending an expensive layer that still cannot observe the failure is worse than none.

Completion

Report the repository, the layer and harness, the directory or file the test goes in, the existing neighbour to mirror, one line on each layer rejected and why, and the rough feedback cost. Leave the test unwritten and no file changed.

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