Source code
Revision control
Copy as Markdown
Other Tools
use std::env;
#[test]
fn clearenv() {
env::set_var("FOO", "BAR");
unsafe { nix::env::clearenv() }.unwrap();
assert_eq!(env::var("FOO").unwrap_err(), env::VarError::NotPresent);
assert_eq!(env::vars().count(), 0);
}