testing

228.8K downloads in the last 30 days (7.6K/day), up 30% from the previous period.

25.6K crates depend on testing — it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

The primary maintainer publishes 215 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

The API has been stable (1.x) for over 7 years with 202 releases. This level of maturity means you can depend on it without worrying about breaking changes.

At 16KB, testing is lightweight. Small crate size correlates with focused, well-scoped functionality.

Notable dependents include swc_ecma_parser, swc_ecma_transforms_base, swc_ecma_codegen, swc_ecma_transforms_react, swc_ecma_transforms_typescript. When high-quality crates choose testing, it's a strong quality signal.