regression-test

name	regression-test
description	Use when user has fixed a bug and needs a test that proves it stays fixed, or when a failure needs to be captured as a reproducible test case.

Kaboom Regression Test

Use this skill after a bug is confirmed and should never reappear.

Inputs To Request

• Failure scenario and expected outcome
• Test layer preference (unit, integration, e2e)
• Existing test file or suite location

Workflow

1. Reproduce failure deterministically: Capture exact trigger and expected assertion.

2. Pick narrowest test layer: Prefer unit/integration before full e2e unless browser behavior is required.

3. Build stable fixtures: Use fixed inputs, bounded timing, and mocked unstable dependencies.

4. Write fail-first assertion: Ensure test fails on pre-fix behavior and targets the real defect.

5. Add guard assertion: Assert adjacent behavior to prevent overfitting.

6. Verify repeatedly: Run targeted tests multiple times to catch flakiness.

Output Contract

• test_location
• failure_assertion
• regression_guard
• stability_controls
• verification_results