1 #![feature(custom_test_frameworks)]
2 // Custom test runner, to avoid libtest being wrapped around compiletest which wraps libtest.
3 #![test_runner(test_runner)]
5 use std::path::PathBuf;
8 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 // Some flags we always want.
29 flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
30 flags.push("--edition 2018".to_owned());
31 if let Ok(sysroot) = std::env::var("MIRI_SYSROOT") {
32 flags.push(format!("--sysroot {}", sysroot));
35 // The rest of the configuration.
36 let mut config = compiletest::Config::default().tempdir();
37 config.mode = mode.parse().expect("Invalid mode");
38 config.rustc_path = miri_path();
39 if rustc_test_suite().is_some() {
40 config.run_lib_path = rustc_lib_path();
41 config.compile_lib_path = rustc_lib_path();
43 config.filter = env::args().nth(1);
44 config.host = get_host();
45 config.src_base = PathBuf::from(path);
46 config.target = target.to_owned();
47 config.target_rustcflags = Some(flags.join(" "));
48 compiletest::run_tests(&config);
51 fn compile_fail(path: &str, target: &str, opt: bool) {
52 let opt_str = if opt { " with optimizations" } else { "" };
53 eprintln!("{}", format!(
54 "## Running compile-fail tests in {} against miri for target {}{}",
60 let mut flags = Vec::new();
62 // Optimizing too aggressivley makes UB detection harder, but test at least
64 // FIXME: Opt level 3 ICEs during stack trace generation.
65 flags.push("-Zmir-opt-level=1".to_owned());
68 run_tests("compile-fail", path, target, flags);
71 fn miri_pass(path: &str, target: &str, opt: bool, noseed: bool) {
72 let opt_str = if opt { " with optimizations" } else { "" };
73 eprintln!("{}", format!(
74 "## Running run-pass tests in {} against miri for target {}{}",
80 let mut flags = Vec::new();
82 flags.push("-Zmir-opt-level=3".to_owned());
84 // Run with intptrcast. Avoid test matrix explosion by doing either this or opt-level=3.
85 flags.push("-Zmiri-seed=".to_owned());
88 run_tests("ui", path, target, flags);
91 fn get_host() -> String {
92 let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc"));
93 let rustc_version = std::process::Command::new(rustc)
96 .expect("rustc not found for -vV")
98 let rustc_version = std::str::from_utf8(&rustc_version).expect("rustc -vV is not utf8");
99 let version_meta = rustc_version::version_meta_for(&rustc_version)
100 .expect("failed to parse rustc version info");
104 fn get_target() -> String {
105 std::env::var("MIRI_TEST_TARGET").unwrap_or_else(|_| get_host())
108 fn run_pass_miri(opt: bool) {
109 miri_pass("tests/run-pass", &get_target(), opt, false);
110 miri_pass("tests/run-pass-noseed", &get_target(), opt, true);
113 fn compile_fail_miri(opt: bool) {
114 if !cfg!(windows) { // FIXME re-enable on Windows
115 compile_fail("tests/compile-fail", &get_target(), opt);
119 fn test_runner(_tests: &[&()]) {
120 run_pass_miri(false);
123 compile_fail_miri(false);
124 compile_fail_miri(true);