1 #![feature(custom_test_frameworks)]
2 // Custom test runner, to avoid libtest being wrapped around compiletest which wraps libtest.
3 #![test_runner(test_runner)]
6 use std::path::PathBuf;
9 use compiletest_rs as compiletest;
11 fn miri_path() -> PathBuf {
12 if rustc_test_suite().is_some() {
13 PathBuf::from(option_env!("MIRI_PATH").unwrap())
15 PathBuf::from(concat!("target/", env!("PROFILE"), "/miri"))
19 fn rustc_test_suite() -> Option<PathBuf> {
20 option_env!("RUSTC_TEST_SUITE").map(PathBuf::from)
23 fn rustc_lib_path() -> PathBuf {
24 option_env!("RUSTC_LIB_PATH").unwrap().into()
27 fn run_tests(mode: &str, path: &str, target: &str) {
28 let in_rustc_test_suite = rustc_test_suite().is_some();
29 // Add some flags we always want.
30 let mut flags = Vec::new();
31 flags.push("--edition 2018".to_owned());
32 if in_rustc_test_suite {
33 // Less aggressive warnings to make the rustc toolstate management less painful.
34 // (We often get warnings when e.g. a feature gets stabilized or some lint gets added/improved.)
35 flags.push("-Astable-features".to_owned());
37 flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
39 if let Ok(sysroot) = std::env::var("MIRI_SYSROOT") {
40 flags.push(format!("--sysroot {}", sysroot));
42 if let Ok(extra_flags) = std::env::var("MIRI_TEST_FLAGS") {
43 flags.push(extra_flags);
46 let flags = flags.join(" ");
47 eprintln!(" Compiler flags: {}", flags);
49 // The rest of the configuration.
50 let mut config = compiletest::Config::default().tempdir();
51 config.mode = mode.parse().expect("Invalid mode");
52 config.rustc_path = miri_path();
53 if in_rustc_test_suite {
54 config.run_lib_path = rustc_lib_path();
55 config.compile_lib_path = rustc_lib_path();
57 config.filter = env::args().nth(1);
58 config.host = get_host();
59 config.src_base = PathBuf::from(path);
60 config.target = target.to_owned();
61 config.target_rustcflags = Some(flags);
62 compiletest::run_tests(&config);
65 fn compile_fail(path: &str, target: &str) {
69 "## Running compile-fail tests in {} against miri for target {}",
76 run_tests("compile-fail", path, target);
79 fn miri_pass(path: &str, target: &str) {
83 "## Running run-pass tests in {} against miri for target {}",
90 run_tests("ui", path, target);
93 fn get_host() -> String {
94 let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc"));
95 let rustc_version = std::process::Command::new(rustc)
98 .expect("rustc not found for -vV")
100 let rustc_version = std::str::from_utf8(&rustc_version).expect("rustc -vV is not utf8");
101 let version_meta = rustc_version::version_meta_for(&rustc_version)
102 .expect("failed to parse rustc version info");
106 fn get_target() -> String {
107 std::env::var("MIRI_TEST_TARGET").unwrap_or_else(|_| get_host())
110 fn test_runner(_tests: &[&()]) {
111 // Add a test env var to do environment communication tests.
112 std::env::set_var("MIRI_ENV_VAR_TEST", "0");
113 // Let the tests know where to store temp files (they might run for a different target, which can make this hard to find).
114 std::env::set_var("MIRI_TEMP", std::env::temp_dir());
116 let target = get_target();
117 miri_pass("tests/run-pass", &target);
118 compile_fail("tests/compile-fail", &target);