orengine 0.7.0-alpha.1

Optimized ring engine for Rust. It is a lighter and faster asynchronous library than tokio-rs, async-std, may, and even smol.
Documentation 
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use std::ffi::OsStr;
use std::os::unix::fs::DirBuilderExt;
use std::path::Path;

/// The path of the test directory.
#[cfg(test)]
pub(crate) const TEST_DIR_PATH: &str = "./test";

/// Returns true if the given path exists.
#[cfg(test)]
pub(crate) fn is_exists<S: AsRef<OsStr>>(path: S) -> bool {
    Path::new(path.as_ref()).exists()
}

/// Creates the test directory if it does not exist.
#[cfg(test)]
pub(crate) fn create_test_dir_if_not_exist() {
    if !is_exists(TEST_DIR_PATH) {
        // here we use std, because we are in tests, so we can't be sure that crate::fs::create_dir_all works correctly
        std::fs::DirBuilder::new()
            .mode(0o777)
            .recursive(true)
            .create(TEST_DIR_PATH)
            .expect("can't create test dir");
    }
}