#![feature(slice_concat_ext, custom_test_frameworks)] // Custom test runner, to avoid libtest being wrapped around compiletest which wraps libtest. #![test_runner(test_runner)] use std::slice::SliceConcatExt; use std::path::PathBuf; use std::env; use compiletest_rs as compiletest; use colored::*; fn miri_path() -> PathBuf { if rustc_test_suite().is_some() { PathBuf::from(option_env!("MIRI_PATH").unwrap()) } else { PathBuf::from(concat!("target/", env!("PROFILE"), "/miri")) } } fn rustc_test_suite() -> Option { option_env!("RUSTC_TEST_SUITE").map(PathBuf::from) } fn rustc_lib_path() -> PathBuf { option_env!("RUSTC_LIB_PATH").unwrap().into() } fn mk_config(mode: &str) -> compiletest::common::ConfigWithTemp { let mut config = compiletest::Config::default().tempdir(); config.mode = mode.parse().expect("Invalid mode"); config.rustc_path = miri_path(); if rustc_test_suite().is_some() { config.run_lib_path = rustc_lib_path(); config.compile_lib_path = rustc_lib_path(); } config.filter = env::args().nth(1); config.host = get_host(); config } fn compile_fail(path: &str, target: &str, opt: bool) { let opt_str = if opt { " with optimizations" } else { "" }; eprintln!("{}", format!( "## Running compile-fail tests in {} against miri for target {}{}", path, target, opt_str ).green().bold()); let mut flags = Vec::new(); flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs flags.push("--edition 2018".to_owned()); if opt { // Optimizing too aggressivley makes UB detection harder, but test at least // the default value. // FIXME: Opt level 3 ICEs during stack trace generation. flags.push("-Zmir-opt-level=1".to_owned()); } let mut config = mk_config("compile-fail"); config.src_base = PathBuf::from(path); config.target = target.to_owned(); config.target_rustcflags = Some(flags.join(" ")); compiletest::run_tests(&config); } fn miri_pass(path: &str, target: &str, opt: bool) { let opt_str = if opt { " with optimizations" } else { "" }; eprintln!("{}", format!( "## Running run-pass tests in {} against miri for target {}{}", path, target, opt_str ).green().bold()); let mut flags = Vec::new(); flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs flags.push("--edition 2018".to_owned()); if opt { // FIXME: We use opt level 1 because MIR inlining defeats the validation // whitelist. flags.push("-Zmir-opt-level=1".to_owned()); } let mut config = mk_config("ui"); config.src_base = PathBuf::from(path); config.target = target.to_owned(); config.target_rustcflags = Some(flags.join(" ")); compiletest::run_tests(&config); } /// Make sure the MIRI_SYSROOT env var is set fn set_sysroot() { if std::env::var("MIRI_SYSROOT").is_ok() { // Nothing to do return; } let sysroot = std::process::Command::new("rustc") .arg("--print") .arg("sysroot") .output() .expect("rustc not found") .stdout; let sysroot = String::from_utf8(sysroot).expect("sysroot is not utf8"); std::env::set_var("MIRI_SYSROOT", sysroot.trim()); } fn get_host() -> String { let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc")); let rustc_version = std::process::Command::new(rustc) .arg("-vV") .output() .expect("rustc not found for -vV") .stdout; let rustc_version = std::str::from_utf8(&rustc_version).expect("rustc -vV is not utf8"); let version_meta = rustc_version::version_meta_for(&rustc_version) .expect("failed to parse rustc version info"); version_meta.host } fn get_target() -> String { std::env::var("MIRI_TARGET").unwrap_or_else(|_| get_host()) } fn run_pass_miri(opt: bool) { miri_pass("tests/run-pass", &get_target(), opt); } fn compile_fail_miri(opt: bool) { compile_fail("tests/compile-fail", &get_target(), opt); } fn test_runner(_tests: &[&()]) { set_sysroot(); run_pass_miri(false); run_pass_miri(true); compile_fail_miri(false); compile_fail_miri(true); }