rust/tests/compiletest.rs

120 lines
3.5 KiB
Rust

#![feature(custom_test_frameworks)]
// Custom test runner, to avoid libtest being wrapped around compiletest which wraps libtest.
#![test_runner(test_runner)]
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<PathBuf> {
option_env!("RUSTC_TEST_SUITE").map(PathBuf::from)
}
fn rustc_lib_path() -> PathBuf {
option_env!("RUSTC_LIB_PATH").unwrap().into()
}
fn run_tests(mode: &str, path: &str, target: &str, mut flags: Vec<String>) {
// Some flags we always want.
flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
flags.push("--edition 2018".to_owned());
if let Ok(sysroot) = std::env::var("MIRI_SYSROOT") {
flags.push(format!("--sysroot {}", sysroot));
}
// The rest of the configuration.
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.src_base = PathBuf::from(path);
config.target = target.to_owned();
config.target_rustcflags = Some(flags.join(" "));
compiletest::run_tests(&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();
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());
}
run_tests("compile-fail", path, target, flags);
}
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();
if opt {
flags.push("-Zmir-opt-level=3".to_owned());
}
run_tests("ui", path, target, flags);
}
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_TEST_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: &[&()]) {
run_pass_miri(false);
run_pass_miri(true);
compile_fail_miri(false);
compile_fail_miri(true);
}