# snapbox > When you have to treat your tests like pets, instead of [cattle][trycmd] [![Documentation](https://img.shields.io/badge/docs-master-blue.svg)][Documentation] ![License](https://img.shields.io/crates/l/snapbox.svg) [![Crates Status](https://img.shields.io/crates/v/snapbox.svg)](https://crates.io/crates/snapbox) `snapbox` is a snapshot-testing toolbox that is ready to use for verifying output from - Function return values - CLI stdout/stderr - Filesystem changes It is also flexible enough to build your own test harness like [trycmd]. See the [docs](http://docs.rs/snapbox) for more. ## License Licensed under either of * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) at your option. ## Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. [Crates.io]: https://crates.io/crates/snapbox [Documentation]: https://docs.rs/snapbox [trycmd]: https://crates.io/crates/trycmd