test-with

A lib help you run test with condition

Environment variable

Run test case when the environment variable is set. A solution for this issue of rust-lang.

```rust

[cfg(test)]

mod tests {

// PWD environment variable exists
#[test_with::env(PWD)]
fn test_works() {
    assert!(true);
}

// NOTHING environment variable does not exist
#[test_with::env(NOTHING)]
fn test_ignored() {
    panic!("should be ignored")
}

} ```

Result of cargo test ```text running 2 tests test tests::testignored ... ignored test tests::testworks ... ok

test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s ```