# Test Fix

> Systematic approach to diagnosing and fixing failing tests in Rust projects. Use when tests fail and you need to diagnose root causes, fix async/await issues, handle race conditions, or resolve database connection problems.

- **Type:** Skill
- **Install:** `agentstack add skill-d-o-hub-rust-self-learning-memory-test-fix`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [d-o-hub](https://agentstack.voostack.com/s/d-o-hub)
- **Installs:** 0
- **Category:** [Databases](https://agentstack.voostack.com/c/databases)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [d-o-hub](https://github.com/d-o-hub)
- **Source:** https://github.com/d-o-hub/rust-self-learning-memory/tree/main/.agents/skills/test-fix
- **Website:** https://d-o-hub.github.io/rust-self-learning-memory/

## Install

```sh
agentstack add skill-d-o-hub-rust-self-learning-memory-test-fix
```

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

## About

# Test Fix

Systematic approach to diagnosing and fixing failing tests.

## Process

### Step 1: Identify Failing Tests
```bash
cargo test --all
cargo test test_name -- --exact --nocapture
```

### Step 2: Reproduce Locally
```bash
# With debug logging
RUST_LOG=debug cargo test test_name

# Force single-threaded for race conditions
cargo test test_name -- --test-threads=1
```

### Step 3: Diagnose Root Cause

| Pattern | Symptom | Fix |
|---------|---------|-----|
| Async/Await | "future cannot be sent" | Add `.await`, use Arc |
| Database | "connection refused" | Check env vars, use test DB |
| Race | Intermittent assertion failure | Add Mutex, sequential execution |
| Type | "expected X, found Y" | Update signatures, add conversions |
| Lifetime | "borrowed value" | Clone data, adjust lifetimes |

### Step 4: Verify Fix
```bash
# Run multiple times
for i in {1..10}; do cargo test test_name -- --exact || break; done

# Run full suite
cargo test --all
```

### Step 5: Regression Prevention
Add test for the specific bug that was fixed.

## Debugging Checklist

- [ ] Run failing test in isolation
- [ ] Check environment variables
- [ ] Review recent changes
- [ ] Check for missing `.await`
- [ ] Verify database connections
- [ ] Look for race conditions
- [ ] Check type compatibility

## Tools

```bash
# Debug logging
RUST_LOG=debug cargo test

# Full backtrace
RUST_BACKTRACE=full cargo test

# Specific module
RUST_LOG=memory_core=debug cargo test
```

## When to Skip vs Fix

**Skip** (temporarily):
- External service down
- Platform-specific issue
- Known upstream bug

**Fix** immediately:
- Logic error
- Incorrect assertion
- Missing error handling

## Source & license

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

- **Author:** [d-o-hub](https://github.com/d-o-hub)
- **Source:** [d-o-hub/rust-self-learning-memory](https://github.com/d-o-hub/rust-self-learning-memory)
- **License:** MIT
- **Homepage:** https://d-o-hub.github.io/rust-self-learning-memory/

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

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

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

## Links

- Listing page: https://agentstack.voostack.com/l/skill-d-o-hub-rust-self-learning-memory-test-fix
- Seller: https://agentstack.voostack.com/s/d-o-hub
- Browse the marketplace: https://agentstack.voostack.com/browse

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