#![feature(slice_concat_ext)] extern crate compiletest_rs as compiletest; use std::slice::SliceConcatExt; use std::path::{PathBuf, Path}; use std::io::Write; use std::env; macro_rules! eprintln { ($($arg:tt)*) => { let stderr = std::io::stderr(); writeln!(stderr.lock(), $($arg)*).unwrap(); } } 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 compile_fail(sysroot: &Path, path: &str, target: &str, host: &str, fullmir: bool) { eprintln!( "## Running compile-fail tests in {} against miri for target {}", path, target ); let mut config = compiletest::Config::default().tempdir(); config.mode = "compile-fail".parse().expect("Invalid mode"); config.rustc_path = miri_path(); let mut flags = Vec::new(); if rustc_test_suite().is_some() { config.run_lib_path = rustc_lib_path(); config.compile_lib_path = rustc_lib_path(); } // if we are building as part of the rustc test suite, we already have fullmir for everything if fullmir && rustc_test_suite().is_none() { if host != target { // skip fullmir on nonhost return; } let sysroot = std::env::home_dir().unwrap() .join(".xargo") .join("HOST"); flags.push(format!("--sysroot {}", sysroot.to_str().unwrap())); config.src_base = PathBuf::from(path.to_string()); } else { flags.push(format!("--sysroot {}", sysroot.to_str().unwrap())); config.src_base = PathBuf::from(path.to_string()); } flags.push("-Zmir-emit-validate=1".to_owned()); config.target_rustcflags = Some(flags.join(" ")); config.target = target.to_owned(); compiletest::run_tests(&config); } fn run_pass(path: &str) { eprintln!("## Running run-pass tests in {} against rustc", path); let mut config = compiletest::Config::default().tempdir(); config.mode = "run-pass".parse().expect("Invalid mode"); config.src_base = PathBuf::from(path); if let Some(rustc_path) = rustc_test_suite() { config.rustc_path = rustc_path; config.run_lib_path = rustc_lib_path(); config.compile_lib_path = rustc_lib_path(); config.target_rustcflags = Some(format!("-Dwarnings --sysroot {}", get_sysroot().display())); } else { config.target_rustcflags = Some("-Dwarnings".to_owned()); } config.host_rustcflags = Some("-Dwarnings".to_string()); compiletest::run_tests(&config); } fn miri_pass(path: &str, target: &str, host: &str, fullmir: bool, opt: bool) { let opt_str = if opt { " with optimizations" } else { "" }; eprintln!( "## Running run-pass tests in {} against miri for target {}{}", path, target, opt_str ); let mut config = compiletest::Config::default().tempdir(); config.mode = "ui".parse().expect("Invalid mode"); config.src_base = PathBuf::from(path); config.target = target.to_owned(); config.host = host.to_owned(); 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(); } let mut flags = Vec::new(); // Control miri logging. This is okay despite concurrent test execution as all tests // will set this env var to the same value. env::set_var("MIRI_LOG", "warn"); // if we are building as part of the rustc test suite, we already have fullmir for everything if fullmir && rustc_test_suite().is_none() { if host != target { // skip fullmir on nonhost return; } let sysroot = std::env::home_dir().unwrap() .join(".xargo") .join("HOST"); flags.push(format!("--sysroot {}", sysroot.to_str().unwrap())); } if opt { flags.push("-Zmir-opt-level=3".to_owned()); } else { flags.push("-Zmir-opt-level=0".to_owned()); // For now, only validate without optimizations. Inlining breaks validation. flags.push("-Zmir-emit-validate=1".to_owned()); } config.target_rustcflags = Some(flags.join(" ")); compiletest::run_tests(&config); } fn is_target_dir>(path: P) -> bool { let mut path = path.into(); path.push("lib"); path.metadata().map(|m| m.is_dir()).unwrap_or(false) } fn for_all_targets(sysroot: &Path, mut f: F) { let target_dir = sysroot.join("lib").join("rustlib"); for entry in std::fs::read_dir(target_dir).expect("invalid sysroot") { let entry = entry.unwrap(); if !is_target_dir(entry.path()) { continue; } let target = entry.file_name().into_string().unwrap(); f(target); } } fn get_sysroot() -> PathBuf { let sysroot = std::env::var("MIRI_SYSROOT").unwrap_or_else(|_| { let sysroot = std::process::Command::new("rustc") .arg("--print") .arg("sysroot") .output() .expect("rustc not found") .stdout; String::from_utf8(sysroot).expect("sysroot is not utf8") }); PathBuf::from(sysroot.trim()) } fn get_host() -> String { let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc")); println!("using rustc at {}", rustc.display()); let host = std::process::Command::new(rustc) .arg("-vV") .output() .expect("rustc not found for -vV") .stdout; let host = std::str::from_utf8(&host).expect("sysroot is not utf8"); let host = host.split("\nhost: ").nth(1).expect( "no host: part in rustc -vV", ); let host = host.split('\n').next().expect("no \n after host"); String::from(host) } fn run_pass_miri(opt: bool) { let sysroot = get_sysroot(); let host = get_host(); for_all_targets(&sysroot, |target| { miri_pass("tests/run-pass", &target, &host, false, opt); }); miri_pass("tests/run-pass-fullmir", &host, &host, true, opt); } #[test] fn run_pass_miri_noopt() { run_pass_miri(false); } #[test] #[ignore] // FIXME: Disabled for now, as the optimizer is pretty broken and crashes... fn run_pass_miri_opt() { run_pass_miri(true); } #[test] fn run_pass_rustc() { run_pass("tests/run-pass"); run_pass("tests/run-pass-fullmir"); } #[test] fn compile_fail_miri() { let sysroot = get_sysroot(); let host = get_host(); // FIXME: run tests for other targets, too compile_fail(&sysroot, "tests/compile-fail", &host, &host, true); compile_fail(&sysroot, "tests/compile-fail-fullmir", &host, &host, true); }