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, mut flags: Vec<String>) {
28 let in_rustc_test_suite = rustc_test_suite().is_some();
29 // Add some flags we always want.
30 flags.push("--edition 2018".to_owned());
31 if in_rustc_test_suite {
32 // Less aggressive warnings to make the rustc toolstate management less painful.
33 // (We often get warnings when e.g. a feature gets stabilized or some lint gets added/improved.)
34 flags.push("-Astable-features".to_owned());
36 flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
38 if let Ok(sysroot) = std::env::var("MIRI_SYSROOT") {
39 flags.push(format!("--sysroot {}", sysroot));
42 // The rest of the configuration.
43 let mut config = compiletest::Config::default().tempdir();
44 config.mode = mode.parse().expect("Invalid mode");
45 config.rustc_path = miri_path();
46 if in_rustc_test_suite {
47 config.run_lib_path = rustc_lib_path();
48 config.compile_lib_path = rustc_lib_path();
50 config.filter = env::args().nth(1);
51 config.host = get_host();
52 config.src_base = PathBuf::from(path);
53 config.target = target.to_owned();
54 config.target_rustcflags = Some(flags.join(" "));
55 compiletest::run_tests(&config);
58 fn compile_fail(path: &str, target: &str, opt: bool) {
59 let opt_str = if opt { " with optimizations" } else { "" };
63 "## Running compile-fail tests in {} against miri for target {}{}",
70 let mut flags = Vec::new();
72 // FIXME: Opt level 2 ICEs during stack trace generation.
73 // See https://github.com/rust-lang/rust/issues/66077.
74 flags.push("-Zmir-opt-level=1".to_owned());
77 run_tests("compile-fail", path, target, flags);
80 fn miri_pass(path: &str, target: &str, opt: bool) {
81 let opt_str = if opt { " with optimizations" } else { "" };
85 "## Running run-pass tests in {} against miri for target {}{}",
92 let mut flags = Vec::new();
94 flags.push("-Zmir-opt-level=3".to_owned());
97 run_tests("ui", path, target, flags);
100 fn get_host() -> String {
101 let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc"));
102 let rustc_version = std::process::Command::new(rustc)
105 .expect("rustc not found for -vV")
107 let rustc_version = std::str::from_utf8(&rustc_version).expect("rustc -vV is not utf8");
108 let version_meta = rustc_version::version_meta_for(&rustc_version)
109 .expect("failed to parse rustc version info");
113 fn get_target() -> String {
114 std::env::var("MIRI_TEST_TARGET").unwrap_or_else(|_| get_host())
117 fn run_pass_miri(opt: bool) {
118 miri_pass("tests/run-pass", &get_target(), opt);
121 fn compile_fail_miri(opt: bool) {
122 compile_fail("tests/compile-fail", &get_target(), opt);
125 fn test_runner(_tests: &[&()]) {
126 // Add a test env var to do environment communication tests
127 std::env::set_var("MIRI_ENV_VAR_TEST", "0");
129 run_pass_miri(false);
132 compile_fail_miri(false);
133 compile_fail_miri(true);