testfile for Rust unit tests

Library for creating automaticaly deleted test files for use in your Rust unit tests. Do not worry about manual temporary file cleanups.

Managed temporary files are created in system temporary directory with unique file names. They can be dereferenced as ordinary File and are automatically deleted during Drop.

Functions do not return Result <T,E> but panic! allowing you to focus on your tests and not on error handling.

Nightly Rust is not required.

Implemented traits for TestFile

1. Testfile can be dereferenced as File making it drop in replacement.
2. implements AsRef / AsMut for Read, Write, File, PathBuf, Path.
3. implements From String and PathBuf.