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rust-testing

How to write Skill Doctor tests — unit, integration, CLI, fixtures, determinism, additive-only.

Skill by KalarisLabs

IndexedApache-2.0★ 13
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

How to write Skill Doctor tests — unit, integration, CLI, fixtures, determinism, additive-only. Use when adding tests, fixtures, snapshots, or changing cargo test layout.

Use cases: testing, writing

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/rust-testing

What's inside

Skill name
rust-testing
Description
How to write Skill Doctor tests — unit, integration, CLI, fixtures, determinism, additive-only. Use when adding tests, fixtures, snapshots, or changing cargo test layout.
License
Apache-2.0
Instructions
37 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Testing

Canonical policy: `TESTING.md`. Do not invent a second harness.

## Placement

| Kind | Where |
|------|--------|
| Unit | `#[cfg(test)]` next to the code |
| Integration | `crates/<name>/tests/` |
| CLI / exit codes | `tests/cli/` against the compiled binary |
| Fixtures | `tests/fixtures/{benign,attack,hard_negative,evasion}/` |
| Real malware | `tests/fixtures/real_malware/`, `#[ignore]`, `REAL_MALWARE=1` |

## Detector PR checklist (all four)

1. Engine or YARA rule  
2. Positive fixture (must fire)  
3. Hard-negative (must not fire)  
4. Test asserting both

## Always-on property tests

- **Determinism:** two scans, equal SHA-256 of JSON.
- **Additive-only:** L1 CRITICAL + L2 "benign" → CRITICAL remains.
- **Offline:** `--offline` makes zero network syscalls (at least: no `reqwest` constructed).
- **Malformed skill:** does not panic.

## Forbidden

- Network in unit tests.
- `thread::sleep` for sandbox.
- Snapshots with timestamps or absolute paths.
- Live secrets. Use canaries like `AKIA_TEST_CANARY`.
- Speed assertions in the every-commit suite (see `rust-perf`).

From KalarisLabs/Skill-Doctor, Apache-2.0.

More from KalarisLabs/Skill-Doctor

Signals

Stars
13
Forks
1
Open issues
30
Last commit (this folder)
Sep 10, 2026 (1 month ago)
Last release
Sep 12, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

rust-testing skill. Agent Mart. https://agentmart.dev/skills/kalarislabs-rust-testing (last updated 2026-10-24)