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extern crate autocfg;
use std::env;
mod support;
/// Tests that autocfg uses the RUSTFLAGS or CARGO_ENCODED_RUSTFLAGS
/// environment variables when running rustc.
#[test]
fn test_with_sysroot() {
let dir = support::exe_dir();
let out = support::out_dir();
// If we have encoded rustflags, they take precedence, even if empty.
env::set_var("CARGO_ENCODED_RUSTFLAGS", "");
env::set_var("RUSTFLAGS", &format!("-L {}", dir.display()));
let ac = autocfg::AutoCfg::with_dir(out.as_ref()).unwrap();
assert!(ac.probe_sysroot_crate("std"));
assert!(!ac.probe_sysroot_crate("autocfg"));
// Now try again with useful encoded args.
env::set_var(
"CARGO_ENCODED_RUSTFLAGS",
&format!("-L\x1f{}", dir.display()),
);
let ac = autocfg::AutoCfg::with_dir(out.as_ref()).unwrap();
assert!(ac.probe_sysroot_crate("autocfg"));
// Try the old-style RUSTFLAGS, ensuring HOST != TARGET.
env::remove_var("CARGO_ENCODED_RUSTFLAGS");
env::set_var("HOST", "lol");
let ac = autocfg::AutoCfg::with_dir(out.as_ref()).unwrap();
assert!(ac.probe_sysroot_crate("autocfg"));
}
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