testing

testing is a cursor rule for Cursor from ZapSign/api-mcp. It costs 0 tokens per session (286 once invoked), scanned A, original, MIT.

Testing rules for Vitest, a JavaScript and TypeScript test framework, in a Cloudflare Workers environment.

In plain words
What is it for?
They help write unit and integration tests, prepare test data, check errors, and run type checks, linting, and tests.
Why use it?
They make tests easier to find, name, mock, and run consistently before code is committed.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit They help write unit and integration tests, prepare test data, check errors, and run type checks, linting, and tests.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/zapsign/api-mcp/testing
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.

Clone the repo
git clone --depth 1 https://github.com/ZapSign/api-mcp

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for testing

README.md
[![agentmods](https://agentmods.dev/badge/rules/zapsign/api-mcp/testing/github.svg)](https://agentmods.dev/rules/zapsign/api-mcp/testing)
Your own site
<a href="https://agentmods.dev/rules/zapsign/api-mcp/testing"><img src="https://agentmods.dev/badge/rules/zapsign/api-mcp/testing/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for testing

Your own site · 80×15
<a href="https://agentmods.dev/rules/zapsign/api-mcp/testing"><img src="https://agentmods.dev/badge/rules/zapsign/api-mcp/testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 286 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.00286
Opus 5.5 $0.00000 $0.00114
Sonnet 5.5 $0.00000 $0.00057
Haiku 4.5 $0.00000 $0.00029

Measured 1mo ago against content hash ea3b41a3a4a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

testing 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 1mo 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.

.cursor/rules/testing.mdc · 36 lines

What it actually says

Testing Conventions

Framework

  • Vitest with @cloudflare/vitest-pool-workers (runs in workerd runtime)
  • Config: vitest.config.ts using defineWorkersConfig

File Locations

  • Unit tests: test/unit/**/*.test.ts
  • Integration tests: test/integration/**/*.test.ts
  • Mock data: test/mocks/zapsign-responses.ts

Test Naming

  • Use describe('module/function name', () => { ... })
  • Use it('should + expected behavior', () => { ... })
  • Group by happy path, error cases, edge cases

Mock Conventions

  • Mock global.fetch for API client tests
  • Mock ZapSignClient methods for tool tests
  • Use realistic data from test/mocks/zapsign-responses.ts
  • Never mock the module under test

Assertions

  • Prefer expect(x).toBe(y) for primitives
  • Prefer expect(x).toEqual(y) for objects
  • Prefer expect(fn).toThrow(ErrorClass) for error testing
  • Always assert on error properties (code, statusCode, retryable)

Pre-commit

Run before every commit: npm run typecheck && npm run lint && npm test

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. 1mo ago First seen · 36 lines · 0 tokens per session scan A ea3b41a3a4a3

Subscribe to this mod's changes

testing is a cursor rule published in the GitHub repository ZapSign/api-mcp (1 stars, last pushed 7d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 286 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 2026-08-31.