bun:test Patterns

Bun's built-in Jest-compatible test runner

Language / Topic

Bun

Rules

bun:test Patterns · balanced balanced

- Use `bun test` as the test runner — it's Jest-compatible with faster execution.

- Use `expect()` matchers from Bun's built-in test API.

- Use `bun test` with `describe()`, `it()`, `expect()` API — Bun's test runner is Jest-compatible but 10-30x faster.

- Use `bun:bench` for performance benchmarking alongside tests.

- Use `--coverage` flag with `bun test` for code coverage reports.