testing-strategy

A testing guide covering unit tests for small parts, integration tests for modules working together, and end-to-end tests for complete user flows.

In plain words
What is it for?
Use it when adding features, naming tests, isolating external services, and creating repeatable test data.
Why use it?
It gives projects a consistent way to check behavior at different levels and avoid unreliable tests.

Cursor rule for Cursor

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/jakerains/citrusrules/testing-strategy
Clone the repo
git clone --depth 1 https://github.com/jakerains/CitrusRules

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 264 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 $0.00264
Opus 5 $0.00000 $0.00132
Sonnet 5 $0.00000 $0.00053
Haiku 4.5 $0.00000 $0.00026

Measured 2d ago against content hash a2094188caaa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

testing-strategy 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.

.cursor/rules/testing-strategy.mdc · 49 lines

What it actually says


name: TestingStrategy type: Auto Attached description: Encourage consistent testing methodology across the project glob: **/*.{ts,js,tsx,jsx,py,go,java} priority: high

Testing Strategy

Implement thorough testing at multiple levels.

Test Pyramid

  • Unit tests validate small pieces of logic in isolation.
  • Integration tests cover interactions between modules.
  • End-to-end tests ensure user flows work correctly.

General Practices

  • Write tests alongside new features.
  • Use descriptive test names explaining the expected behavior.
  • Keep tests deterministic and independent.

Mocking and Fixtures

  • Stub external services to keep tests fast.
  • Use fixture data for repeatability.

Example

import { describe, it, expect } from 'vitest';
import { sum } from './math';

describe('sum', () => {
  it('adds numbers', () => {
    expect(sum(1, 2)).toBe(3);
  });
});

Consistent testing leads to confident and maintainable code.

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 · 49 lines · 0 tokens per session scan A a2094188caaa

Subscribe to this mod's changes

testing-strategy is a cursor rule published in the GitHub repository jakerains/CitrusRules (2 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 264 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.