testing Cursor ruleA

testing from stbenjam/skillsaw is a Cursor rule: instructions the Cursor agent follows in that repo.

mdr add stbenjam/skillsaw/.cursor/rules/testing.mdc@git:20260828.2b62c03

Pins git:20260828.2b62c03 in mdr.lock. Pin the fingerprint instead.

Audit grade

A, 14 of 14 checks passed

Kind

Cursor rule

Repository

stbenjam/skillsaw

Path

.cursor/rules/testing.mdc

Versions recorded

3

Latest version

git:20260828.2b62c03, committed Aug 28, 2026

First version recorded

May 13, 2026

Size

2,962 bytes

Repository stars

69

License

Apache-2.0

Guidelines for writing tests, especially integration tests with fixtures.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

<!-- Source paths below are repo-root-relative references, not links navigable from this file's directory. -->
<!-- skillsaw-disable content-unlinked-internal-reference -->

# Testing

## Integration Tests

Integration tests live in `tests/test_integration.py` and verify end-to-end
behavior by driving the CLI (`skillsaw lint` / `fix`) against realistic repo
fixtures.

### Drive the CLI through `run_cli`

`run_lint` and the `_run_fix` helpers call `run_cli` from
`tests/cli_runner.py`, which invokes `skillsaw.cli.main()` in-process with
argv, stdout, stderr, env and cwd swapped, and returns a
`subprocess.CompletedProcess` stand-in. Spawning an interpreter per call cost
~160ms — more than half of it importing skillsaw — and dominated the suite.
Prefer `run_cli` for a new integration test.

Reach for a real `subprocess.run` only when the test depends on something a
shared interpreter cannot give it:

- **Import isolation** — the `--no-custom-rules` tests prove a rule file on
  disk did or did not get imported. In-process they would execute an
  arbitrary rule inside the test worker, and `sys.modules` could mask a
  repeat import and make the negative case pass vacuously.
…

Read the whole file at its exact version.

How to install

mdr add stbenjam/skillsaw/.cursor/rules/testing.mdc@sha256:2b2164b556f5fd8a

[![mdr](https://markdownregistry.com/badge/art_5hxyrkyxsbdbhlvu.svg)](https://markdownregistry.com/a/art_5hxyrkyxsbdbhlvu)

Versions

The registry has recorded 3 versions of this file, between May 13, 2026 and Aug 28, 2026, about one every 53 days.

Audit of the latest version

Source

API

GET https://markdownregistry.com/api/v1/artifacts/art_5hxyrkyxsbdbhlvu
GET https://markdownregistry.com/api/v1/resolve?ref=stbenjam/skillsaw/.cursor/rules/testing.mdc
GET https://markdownregistry.com/api/v1/blob/2b2164b556f5fd8ae7f22a98b62a22b08bf364d1d69adce39b1eeb44811b324a

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Guides: Cursor rules vs AGENTS.md · which agent file does what.

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