# assert_cmd
> **Assert `process::Command`** - Easy command initialization and assertions.
[][Documentation]
[](https://crates.io/crates/assert_cmd)
`assert_cmd` aims to simplify the process for doing integration testing of CLIs, including:
- Finding your crate's binary to test
- Assert on the result of your program's run.
## Example
Here's a trivial example:
```rust,no_run
use assert_cmd::Command;
let mut cmd = Command::cargo_bin("bin_fixture").unwrap();
cmd.assert().success();
```
See the [docs](http://docs.rs/assert_cmd) for more.
## Relevant crates
Other crates that might be useful in testing command line programs.
* [escargot][escargot] for more control over configuring the crate's binary.
* [duct][duct] for orchestrating multiple processes.
* or [commandspec] for easier writing of commands
* [rexpect][rexpect] for testing interactive programs.
* [`assert_fs`][assert_fs] for filesystem fixtures and assertions.
* or [tempfile][tempfile] for scratchpad directories.
* [dir-diff][dir-diff] for testing file side-effects.
[escargot]: http://docs.rs/escargot
[rexpect]: https://crates.io/crates/rexpect
[dir-diff]: https://crates.io/crates/dir-diff
[tempfile]: https://crates.io/crates/tempfile
[duct]: https://crates.io/crates/duct
[assert_fs]: https://crates.io/crates/assert_fs
[commandspec]: https://crates.io/crates/commandspec
## 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.
## Testimonials
fitzgen
> assert_cmd is just such a pleasure to use every single time, I fall in love all over again
>
> bravo bravo WG-cli
passcod
> Running commands and dealing with output can be complex in many many ways, so assert_cmd smoothing that is excellent, very much welcome, and improves ergonomics significantly.
volks73
> I have used [assert_cmd] in other projects and I am extremely pleased with it
coreyja
> [assert_cmd] pretty much IS my testing strategy so far, though my app under test is pretty small.
>
> This library has made it really easy to add some test coverage to my project, even when I am just learning how to write Rust!
## 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/assert_cmd
[Documentation]: https://docs.rs/assert_cmd