# assert_fs
> **Assert Filesystems** - Filesystem fixtures and assertions for testing.
[](https://dev.azure.com/assert-rs/assert-rs/_build/latest?definitionId=2&branchName=master)
[][Documentation]

[](https://crates.io/crates/assert_fs)
`assert_fs` aims to simplify
- Setting up files for your tests to consume
- Asserting on files produced by your tests
## Install
Add to your `Cargo.toml`:
```toml
[dependencies]
assert_fs = "1.0.0"
```
## Example
Here is a trivial example:
```rust
use assert_fs::prelude::*;
use predicates::prelude::*;
let temp = assert_fs::TempDir::new().unwrap();
let input_file = temp.child("foo.txt");
input_file.touch().unwrap();
// ... do something with input_file ...
input_file.assert("");
temp.child("bar.txt").assert(predicate::path::missing());
temp.close().unwrap();
```
See the [documentation](https://docs.rs/assert_fs) for more information.
## 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/assert_fs
[Documentation]: https://docs.rs/assert_fs