io-process 0.0.2

Set of I/O-free coroutines and runtimes to manage processes
Documentation 
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use io_process::{
    command::Command,
    coroutines::spawn_then_wait_with_output::{
        SpawnThenWaitWithOutput, SpawnThenWaitWithOutputResult,
    },
    runtimes::std::handle,
};

fn echo() -> Command {
    let mut command = Command::new("echo");
    command.arg("-n").arg("$TEST").env("TEST", "expanded");
    command
}

#[test]
pub fn expand() {
    let _ = env_logger::try_init();

    let mut command = echo();
    command.expand = true;

    let mut spawn = SpawnThenWaitWithOutput::new(command);
    let mut arg = None;

    let output = loop {
        match spawn.resume(arg.take()) {
            SpawnThenWaitWithOutputResult::Ok(output) => break output,
            SpawnThenWaitWithOutputResult::Io(io) => arg = Some(handle(io).unwrap()),
            SpawnThenWaitWithOutputResult::Err(err) => panic!("{err}"),
        }
    };

    assert_eq!("expanded", String::from_utf8_lossy(&output.stdout));
}

#[test]
pub fn no_expand() {
    let _ = env_logger::try_init();

    let mut spawn = SpawnThenWaitWithOutput::new(echo());
    let mut arg = None;

    let output = loop {
        match spawn.resume(arg.take()) {
            SpawnThenWaitWithOutputResult::Ok(output) => break output,
            SpawnThenWaitWithOutputResult::Io(io) => arg = Some(handle(io).unwrap()),
            SpawnThenWaitWithOutputResult::Err(err) => panic!("{err}"),
        }
    };

    assert_eq!("$TEST", String::from_utf8_lossy(&output.stdout));
}