entrait VS tempfile

Entrait (docs) is a proc-macro for designing loosely coupled applications, enabling the same testing flexibility that users of more orthodox object-oriented languages are used to.

You might want to look at https://docs.rs/entrait/latest/entrait/, a pattern created specifically for frameworks (like async-graphql) to be loosely linked with your business logic and global application state. There is already a small example for async-graphql. (I am the author of entrait)

A new version of entrait has been released, this time with experimental support for zero-cost async Inversion of Control.

For the config files, I used the 'tempfile' crate, or more specifically, the tempdir function to create a temporary directory. So that any file creation or modification can happen inside without affecting the real config files.

I need to do some tests with files operations, what's the best practice in regards to creating temporary files in tests ? I heard about tempfile but is there a more idiomatic way to do that ?

The sudo-rs Cargo.toml [1] file seems very reasonable. This is the curse of being cross platform. The inclusion of https://github.com/Stebalien/tempfile as a dependency is responsible for the overwhelming majority of lines due to including *-sys crates for multiple OSs.

~/Code/tempfile !! tokei vendor

Eventually, I had to test reading of input file and generation of the html file. To do this, I would need to create test files for input and output for this scenario. However, this could cause problems unless I named all the test files differently as tests usually run in parallel. So, I decided to use the tempfile crate to create a temporary test directory for each test (where needed):

Create a NamedTempFile with the tempfile crate.

Even better would be to create a tempdir and populate it during the test run. Try the tempfile crate.

Not the same commenter but you could use a tempfile

That said though; there are a few solutions for the problem you're describing. One would be to have a "temp file" type which knows how to delete itself when dropped, but can manually be converted into a permanent file in the case of success. Crates like tempfile provide abstractions for this.

tempdir was merged into tempfile.