src/test/run-pass/env-vars.rs

   1 // ignore-cloudabi no env vars
   2 // ignore-wasm32-bare no env vars
   3
   4 use std::env::*;
   5
   6 fn main() {
   7     for (k, v) in vars_os() {
   8         let v2 = var_os(&k);
   9         assert!(v2.as_ref().map(|s| &**s) == Some(&*v),
  10                 "bad vars->var transition: {:?} {:?} {:?}", k, v, v2);
  11     }
  12 }