rustflags.rs - mozsearch

Enable keyboard shortcuts

extern crate autocfg;

use std::env;

/// Tests that autocfg uses the RUSTFLAGS or CARGO_ENCODED_RUSTFLAGS

/// environment variables when running rustc.

#[test]

fn test_with_sysroot() {

    // Use the same path as this test binary.

    let dir = env::current_exe().unwrap().parent().unwrap().to_path_buf();

    env::set_var("OUT_DIR", &format!("{}", dir.display()));

    // 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::new().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::new().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::new().unwrap();

    assert!(ac.probe_sysroot_crate("autocfg"));