test

A set of guidelines for end-to-end testing, which checks a complete feature through the system as a user would. It also defines how test fixtures—saved starting data and files—should be managed.

In plain words
What is it for?
Use it when writing or reviewing end-to-end tests, especially tests that work with files or directories.
Why use it?
It prevents tests from creating temporary files in inconsistent ways and gives the test suite a repeatable starting state.

Cursor rule

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/ranyitz/aicm/test
Clone the repo
git clone --depth 1 https://github.com/ranyitz/aicm
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 232 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00232
Opus 5 $0.00000 $0.00116
Sonnet 5 $0.00000 $0.00046
Haiku 4.5 $0.00000 $0.00023

Measured 2d ago against content hash d211c53be173, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

rules/test.mdc · 35 lines

What it actually says

E2E Testing Best Practices

  • Store initial test state in fixtures
  • Reference documentation: E2E_TESTS.md
  • Include .gitkeep file in empty fixture directories
  • Never create test files on-the-fly with fs.writeFileSync() or similar methods

Example Usage

DO: Good practice

test("should do something with files", async () => {
  await setupFromFixture("my-test-fixture", expect.getState().currentTestName);
  
  // Test logic here
});

DON'T: Bad practice (avoid this)

test("should not create files directly", async () => {
  await setupTestDir(expect.getState().currentTestName);
  
  // DON'T DO THIS - violates test standards
  fs.writeFileSync(path.join(testDir, "some-file.txt"), "content");
  
  // Test logic here
});
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 35 lines · 0 tokens per session scan A d211c53be173

Subscribe to this mod's changes

test is a cursor rule published in the GitHub repository ranyitz/aicm (36 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 232 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.