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extern crate autocfg;
use std::env;
mod support;
/// Tests that we can control the use of `#![no_std]`.
#[test]
fn no_std() {
// Clear the CI `TARGET`, if any, so we're just dealing with the
// host target which always has `std` available.
env::remove_var("TARGET");
// Use the same path as this test binary.
let out = support::out_dir();
let mut ac = autocfg::AutoCfg::with_dir(out.as_ref()).unwrap();
assert!(!ac.no_std());
assert!(ac.probe_path("std::mem"));
// `#![no_std]` was stabilized in Rust 1.6
if ac.probe_rustc_version(1, 6) {
ac.set_no_std(true);
assert!(ac.no_std());
assert!(!ac.probe_path("std::mem"));
assert!(ac.probe_path("core::mem"));
}
}
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