#![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, Path};
+use std::path::PathBuf;
use std::env;
use compiletest_rs as compiletest;
option_env!("RUSTC_LIB_PATH").unwrap().into()
}
-fn have_fullmir() -> bool {
- // We assume we have full MIR when MIRI_SYSROOT is set or when we are in rustc
- std::env::var("MIRI_SYSROOT").is_ok() || rustc_test_suite().is_some()
-}
+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));
+ }
-fn mk_config(mode: &str) -> compiletest::common::ConfigWithTemp {
+ // The rest of the configuration.
let mut config = compiletest::Config::default().tempdir();
config.mode = mode.parse().expect("Invalid mode");
config.rustc_path = miri_path();
config.compile_lib_path = rustc_lib_path();
}
config.filter = env::args().nth(1);
- config
+ 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(sysroot: &Path, path: &str, target: &str, host: &str, need_fullmir: bool, opt: bool) {
- if need_fullmir && !have_fullmir() {
- eprintln!("{}\n", format!(
- "## Skipping compile-fail tests in {} against miri for target {} due to missing mir",
- path,
- target
- ).yellow().bold());
- return;
- }
-
+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 {}{}",
).green().bold());
let mut flags = Vec::new();
- flags.push(format!("--sysroot {}", sysroot.display()));
- flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
if opt {
// Optimizing too aggressivley makes UB detection harder, but test at least
// the default value.
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.host = host.to_owned();
- config.target_rustcflags = Some(flags.join(" "));
- compiletest::run_tests(&config);
+ run_tests("compile-fail", path, target, flags);
}
-fn miri_pass(sysroot: &Path, path: &str, target: &str, host: &str, need_fullmir: bool, opt: bool) {
- if need_fullmir && !have_fullmir() {
- eprintln!("{}\n", format!(
- "## Skipping run-pass tests in {} against miri for target {} due to missing mir",
- path,
- target
- ).yellow().bold());
- return;
- }
-
+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 {}{}",
).green().bold());
let mut flags = Vec::new();
- flags.push(format!("--sysroot {}", sysroot.display()));
- flags.push("-Dwarnings -Dunused".to_owned()); // overwrite the -Aunused in compiletest-rs
if opt {
- // FIXME: We use opt level 1 because MIR inlining defeats the validation
- // whitelist.
- flags.push("-Zmir-opt-level=1".to_owned());
- }
- if !have_fullmir() {
- // Validation relies on the EscapeToRaw statements being emitted
- flags.push("-Zmiri-disable-validation".to_owned());
+ flags.push("-Zmir-opt-level=3".to_owned());
}
- let mut config = mk_config("ui");
- config.src_base = PathBuf::from(path);
- config.target = target.to_owned();
- config.host = host.to_owned();
- config.target_rustcflags = Some(flags.join(" "));
- compiletest::run_tests(&config);
-}
-
-fn is_target_dir<P: Into<PathBuf>>(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<F: FnMut(String)>(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())
+ run_tests("ui", path, target, flags);
}
fn get_host() -> String {
let rustc = rustc_test_suite().unwrap_or(PathBuf::from("rustc"));
- let host = std::process::Command::new(rustc)
+ let rustc_version = 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)
+ 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 run_pass_miri(opt: bool) {
- let sysroot = get_sysroot();
- let host = get_host();
+fn get_target() -> String {
+ std::env::var("MIRI_TEST_TARGET").unwrap_or_else(|_| get_host())
+}
- for_all_targets(&sysroot, |target| {
- miri_pass(&sysroot, "tests/run-pass", &target, &host, false, opt);
- });
- miri_pass(&sysroot, "tests/run-pass-fullmir", &host, &host, true, opt);
+fn run_pass_miri(opt: bool) {
+ miri_pass("tests/run-pass", &get_target(), opt);
}
fn compile_fail_miri(opt: bool) {
- let sysroot = get_sysroot();
- let host = get_host();
-
- // FIXME: run tests for other targets, too
- compile_fail(&sysroot, "tests/compile-fail", &host, &host, false, opt);
- compile_fail(&sysroot, "tests/compile-fail-fullmir", &host, &host, true, opt);
+ compile_fail("tests/compile-fail", &get_target(), opt);
}
fn test_runner(_tests: &[&()]) {
- // We put everything into a single test to avoid the parallelism `cargo test`
- // introduces. We still get parallelism within our tests because `compiletest`
- // uses `libtest` which runs jobs in parallel.
-
run_pass_miri(false);
run_pass_miri(true);
projects / rust.git / blobdiff