130 lines
4.0 KiB
Rust
130 lines
4.0 KiB
Rust
#![feature(custom_test_frameworks)]
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// Custom test runner, to avoid libtest being wrapped around compiletest which wraps libtest.
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#![test_runner(test_runner)]
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use std::path::PathBuf;
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use std::env;
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use compiletest_rs as compiletest;
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use colored::*;
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fn miri_path() -> PathBuf {
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if rustc_test_suite().is_some() {
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PathBuf::from(option_env!("MIRI_PATH").unwrap())
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} else {
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PathBuf::from(concat!("target/", env!("PROFILE"), "/miri"))
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}
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}
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fn rustc_test_suite() -> Option<PathBuf> {
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option_env!("RUSTC_TEST_SUITE").map(PathBuf::from)
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}
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fn rustc_lib_path() -> PathBuf {
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option_env!("RUSTC_LIB_PATH").unwrap().into()
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}
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fn run_tests(mode: &str, path: &str, target: &str, mut flags: Vec<String>) {
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let in_rustc_test_suite = rustc_test_suite().is_some();
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// Add some flags we always want.
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flags.push("--edition 2018".to_owned());
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if in_rustc_test_suite {
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// Less aggressive warnings to make the rustc toolstate management less painful.
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// (We often get warnings when e.g. a feature gets stabilized or some lint gets added/improved.)
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flags.push("-Astable-features".to_owned());
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} else {
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flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
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}
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if let Ok(sysroot) = std::env::var("MIRI_SYSROOT") {
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flags.push(format!("--sysroot {}", sysroot));
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}
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// The rest of the configuration.
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let mut config = compiletest::Config::default().tempdir();
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config.mode = mode.parse().expect("Invalid mode");
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config.rustc_path = miri_path();
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if in_rustc_test_suite {
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config.run_lib_path = rustc_lib_path();
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config.compile_lib_path = rustc_lib_path();
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}
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config.filter = env::args().nth(1);
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config.host = get_host();
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config.src_base = PathBuf::from(path);
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config.target = target.to_owned();
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config.target_rustcflags = Some(flags.join(" "));
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compiletest::run_tests(&config);
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}
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fn compile_fail(path: &str, target: &str, opt: bool) {
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let opt_str = if opt { " with optimizations" } else { "" };
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eprintln!("{}", format!(
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"## Running compile-fail tests in {} against miri for target {}{}",
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path,
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target,
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opt_str
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).green().bold());
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let mut flags = Vec::new();
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if opt {
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// Optimizing too aggressivley makes UB detection harder, but test at least
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// the default value.
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// FIXME: Opt level 3 ICEs during stack trace generation.
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flags.push("-Zmir-opt-level=1".to_owned());
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}
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run_tests("compile-fail", path, target, flags);
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}
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fn miri_pass(path: &str, target: &str, opt: bool) {
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let opt_str = if opt { " with optimizations" } else { "" };
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eprintln!("{}", format!(
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"## Running run-pass tests in {} against miri for target {}{}",
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path,
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target,
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opt_str
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).green().bold());
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let mut flags = Vec::new();
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if opt {
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flags.push("-Zmir-opt-level=3".to_owned());
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}
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run_tests("ui", path, target, flags);
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}
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fn get_host() -> String {
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let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc"));
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let rustc_version = std::process::Command::new(rustc)
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.arg("-vV")
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.output()
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.expect("rustc not found for -vV")
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.stdout;
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let rustc_version = std::str::from_utf8(&rustc_version).expect("rustc -vV is not utf8");
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let version_meta = rustc_version::version_meta_for(&rustc_version)
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.expect("failed to parse rustc version info");
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version_meta.host
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}
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fn get_target() -> String {
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std::env::var("MIRI_TEST_TARGET").unwrap_or_else(|_| get_host())
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}
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fn run_pass_miri(opt: bool) {
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miri_pass("tests/run-pass", &get_target(), opt);
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}
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fn compile_fail_miri(opt: bool) {
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compile_fail("tests/compile-fail", &get_target(), opt);
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}
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fn test_runner(_tests: &[&()]) {
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// Add a test env var to do environment communication tests
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std::env::set_var("MIRI_ENV_VAR_TEST", "0");
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run_pass_miri(false);
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run_pass_miri(true);
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compile_fail_miri(false);
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compile_fail_miri(true);
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}
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