1 #![feature(slice_concat_ext, 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::slice::SliceConcatExt;
6 use std::path::PathBuf;
9 use compiletest_rs as compiletest;
12 fn miri_path() -> PathBuf {
13 if rustc_test_suite().is_some() {
14 PathBuf::from(option_env!("MIRI_PATH").unwrap())
16 PathBuf::from(concat!("target/", env!("PROFILE"), "/miri"))
20 fn rustc_test_suite() -> Option<PathBuf> {
21 option_env!("RUSTC_TEST_SUITE").map(PathBuf::from)
24 fn rustc_lib_path() -> PathBuf {
25 option_env!("RUSTC_LIB_PATH").unwrap().into()
28 fn run_tests(mode: &str, path: &str, target: &str, mut flags: Vec<String>) {
29 // Some flags we always want.
30 flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
31 flags.push("--edition 2018".to_owned());
32 if let Ok(sysroot) = std::env::var("MIRI_SYSROOT") {
33 flags.push(format!("--sysroot {}", sysroot));
36 // The rest of the configuration.
37 let mut config = compiletest::Config::default().tempdir();
38 config.mode = mode.parse().expect("Invalid mode");
39 config.rustc_path = miri_path();
40 if rustc_test_suite().is_some() {
41 config.run_lib_path = rustc_lib_path();
42 config.compile_lib_path = rustc_lib_path();
44 config.filter = env::args().nth(1);
45 config.host = get_host();
46 config.src_base = PathBuf::from(path);
47 config.target = target.to_owned();
48 config.target_rustcflags = Some(flags.join(" "));
49 compiletest::run_tests(&config);
52 fn compile_fail(path: &str, target: &str, opt: bool) {
53 let opt_str = if opt { " with optimizations" } else { "" };
54 eprintln!("{}", format!(
55 "## Running compile-fail tests in {} against miri for target {}{}",
61 let mut flags = Vec::new();
63 // Optimizing too aggressivley makes UB detection harder, but test at least
65 // FIXME: Opt level 3 ICEs during stack trace generation.
66 flags.push("-Zmir-opt-level=1".to_owned());
69 run_tests("compile-fail", path, target, flags);
72 fn miri_pass(path: &str, target: &str, opt: bool, noseed: bool) {
73 let opt_str = if opt { " with optimizations" } else { "" };
74 eprintln!("{}", format!(
75 "## Running run-pass tests in {} against miri for target {}{}",
81 let mut flags = Vec::new();
83 flags.push("-Zmir-opt-level=3".to_owned());
85 // Run with intptrcast. Avoid test matrix explosion by doing either this or opt-level=3.
86 flags.push("-Zmiri-seed=".to_owned());
89 run_tests("ui", path, target, flags);
92 fn get_host() -> String {
93 let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc"));
94 let rustc_version = std::process::Command::new(rustc)
97 .expect("rustc not found for -vV")
99 let rustc_version = std::str::from_utf8(&rustc_version).expect("rustc -vV is not utf8");
100 let version_meta = rustc_version::version_meta_for(&rustc_version)
101 .expect("failed to parse rustc version info");
105 fn get_target() -> String {
106 std::env::var("MIRI_TEST_TARGET").unwrap_or_else(|_| get_host())
109 fn run_pass_miri(opt: bool) {
110 miri_pass("tests/run-pass", &get_target(), opt, false);
111 miri_pass("tests/run-pass-noseed", &get_target(), opt, true);
114 fn compile_fail_miri(opt: bool) {
115 compile_fail("tests/compile-fail", &get_target(), opt);
118 fn test_runner(_tests: &[&()]) {
119 run_pass_miri(false);
122 compile_fail_miri(false);
123 compile_fail_miri(true);