Test Runner

Execute and manage Rust tests for the self-learning memory project.

Commands

# Unit tests (fast, <30s)
cargo nextest run --lib

# Integration tests
cargo nextest run --test '*'

# Full suite
cargo nextest run --all
cargo test --doc  # doctests (nextest unsupported)

# Quality gates (coverage threshold 90%)
./scripts/quality-gates.sh

Test Categories

Category	Command	Scope
Unit	cargo nextest run --lib	Individual functions
Integration	cargo nextest run --test '*'	End-to-end workflows
Doc	cargo test --doc	Documentation examples
Mutation	cargo mutants -p do-memory-core	Test effectiveness

Best Practices

• Isolation: Each test independent
• AAA pattern: Arrange-Act-Assert
• Single responsibility: One behavior per test
• Naming: test_<function>_<scenario>_<expected>
• Speed: <1s per unit test

Async Testing

#[tokio::test]
async fn test_episode() { let result = async_fn().await; }

#[tokio::test(start_paused = true)]
async fn test_timeout() { /* paused clock */ }

#[tokio::test(flavor = "multi_thread", worker_threads = 4)]
async fn test_concurrent() { /* parallel ops */ }

Bad	Good
std::thread::sleep()	tokio::time::sleep().await
Missing .await	Always await async

Troubleshooting

Issue	Fix
Race conditions	cargo test -- --test-threads=1
redb lock errors	Separate DB per test
DB connection refused	Check TURSO_URL/TURSO_TOKEN

Coverage

cargo llvm-cov --html --output-dir coverage

References

• ADR-033: Modern Testing Strategy

Related skills: test-patterns for test design, test-optimization for performance-focused test work, and test-fix for failing-suite diagnosis.