# Testing Patterns

> Testing patterns and principles. Unit, integration, mocking strategies.

- **Type:** Skill
- **Install:** `agentstack add skill-matthewbspeicher-remembr-dev-testing-patterns`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [matthewbspeicher](https://agentstack.voostack.com/s/matthewbspeicher)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [matthewbspeicher](https://github.com/matthewbspeicher)
- **Source:** https://github.com/matthewbspeicher/remembr-dev/tree/main/.agent/skills/testing-patterns

## Install

```sh
agentstack add skill-matthewbspeicher-remembr-dev-testing-patterns
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Testing Patterns

> Principles for reliable test suites.

---

## 1. Testing Pyramid

```
        /\          E2E (Few)
       /  \         Critical flows
      /----\
     /      \       Integration (Some)
    /--------\      API, DB queries
   /          \
  /------------\    Unit (Many)
                    Functions, classes
```

---

## 2. AAA Pattern

| Step | Purpose |
|------|---------|
| **Arrange** | Set up test data |
| **Act** | Execute code under test |
| **Assert** | Verify outcome |

---

## 3. Test Type Selection

### When to Use Each

| Type | Best For | Speed |
|------|----------|-------|
| **Unit** | Pure functions, logic | Fast ( **Remember:** Tests are documentation. If someone can't understand what the code does from the tests, rewrite them.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [matthewbspeicher](https://github.com/matthewbspeicher)
- **Source:** [matthewbspeicher/remembr-dev](https://github.com/matthewbspeicher/remembr-dev)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-matthewbspeicher-remembr-dev-testing-patterns
- Seller: https://agentstack.voostack.com/s/matthewbspeicher
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.