write-regression

name	write-regression
description	Turn a replay bundle into a pytest regression test. Use when: writing a test from a bundle, creating regression coverage, adding a test case from a replay.
argument-hint	[path-to-replay-bundle]

You are converting a replay bundle into a pytest regression test.

Inputs

• Bundle path: $ARGUMENTS

Tasks

1. Load the replay bundle using ReplayBundle.load_json().
2. Read its assertions and understand what each one validates.
3. Generate a pytest test function that:
   • Loads the bundle from a fixture path.
   • Calls evaluate_bundle() and checks the result.
   • Has a descriptive name reflecting the failure scenario.
4. Place the test in tests/ with a name matching the bundle scenario.
5. Run uv run pytest -q to verify the test passes.
6. If the test should fail (capturing a known bug), mark it with @pytest.mark.xfail and explain why.

Rules

• Do not modify the replay bundle itself.
• Do not add assertions beyond what the bundle specifies.
• Keep test functions focused and readable.
• Import only from firmware_replay_lab public API.