use assert_cmd::prelude::*; // Add methods on commands
use predicates::prelude::*; // Used for writing assertions
use std::process::Command; // Run programs

#[test]
pub fn it_adds_two() {
    assert_eq!(4, 2 + 2);
}

#[test]
fn arg_parsing() -> Result<(), Box<dyn std::error::Error>> {
    let mut cmd = Command::cargo_bin("lola")?;

    cmd.arg("pytest");
    cmd.assert().stdout(predicate::str::contains("pytest"));

    Ok(())
}