testing-python SKILL.md skillA
testing-python from qte77/claude-code-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add qte77/claude-code-plugins/testing-python@git:20260411.75d7792Pins git:20260411.75d7792 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- qte77/claude-code-plugins
- Path
plugins/python-dev/skills/testing-python/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260411.75d7792, committed Apr 11, 2026
- First version recorded
- Mar 22, 2026
- Size
- 3,070 bytes
- Repository stars
- 3
- License
- Apache-2.0
Writes tests following TDD Red-Green-Refactor (pytest + Hypothesis). Tests behavior, not implementation. Use when writing unit tests, integration tests, or property tests.
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
# Python Testing
**Target**: $ARGUMENTS
Writes **focused, behavior-driven tests** following project testing strategy.
## Quick Reference
**TDD methodology** (language-agnostic): See `tdd-core` plugin (`testing-tdd` skill)
**Python-specific documentation**: `references/`
- `references/testing-strategy.md` - Python tools (pytest, Hypothesis, inline-snapshot)
- `references/tdd-best-practices.md` - Python TDD examples (extends tdd-core)
## Approach
**TDD only**: pytest for known cases, Hypothesis for edge cases, inline-snapshot for regression. Tests assert observable behavior — inputs produce expected outputs/side-effects. No Gherkin, no feature files, no step definitions.
See `references/testing-strategy.md` for tool selection guide.
## TDD Essentials (Quick Reference)
**Cycle**: RED (failing test) → GREEN (minimal pass) → REFACTOR (clean up)
**Structure**: Arrange-Act-Assert (AAA)
```python
def test_order_processor_calculates_total():
# ARRANGE
items = [Item(price=10.00, qty=2), Item(price=5.00, qty=1)]
processor = OrderProcessor()
# ACT
total = processor.calculate_total(items)
# ASSERT
assert total == 25.00
```
…Read the whole file at its exact version.
How to install
mdr add qte77/claude-code-plugins/testing-python@sha256:0be1d4d280ee2f9fThe line at the top of this page pins the label git:20260411.75d7792, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_m5ok5yf3ohqi46za)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 22, 2026 and Apr 11, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260411.75d7792 latest | 2026-04-11 | 75d7792 | 3,070 B | A | view · diff |
| git:20260411.7e3d61e | 2026-04-11 | 7e3d61e | 3,070 B | A | view · diff |
| git:20260404.d174eb3 | 2026-04-04 | d174eb3 | 3,124 B | A | view · diff |
| git:20260404.9bec903 | 2026-04-04 | 9bec903 | 3,124 B | A | view · diff |
| git:20260322.75aadc6 | 2026-03-22 | 75aadc6 | 2,968 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3070 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
qte77/claude-code-plugins · 3 stars · license Apache-2.0 · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_m5ok5yf3ohqi46za GET https://markdownregistry.com/api/v1/resolve?ref=qte77/claude-code-plugins/testing-python GET https://markdownregistry.com/api/v1/blob/0be1d4d280ee2f9fdde54e91801e83514dbc861e64bb3b452951e625f3eb1c77
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.