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https://github.com/rust-lang/rust
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75fa9f6dec
This commit is extracted from #122036 and adds a new directive to the `compiletest` test runner, `//@ needs-threads`. This is intended to capture the need that a target must implement threading to execute a specific test, typically one that uses `std::thread`. This is primarily done for WebAssembly targets which currently do not have threads by default. This enables transitioning a lot of `//@ ignore-wasm*`-style ignores into a more self-documenting `//@ needs-threads` directive. Additionally the `wasm32-wasi-preview1-threads` target, for example, does actually have threads, but isn't tested in CI at this time. This change enables running these tests for that target, but not other wasm targets.
50 lines
1 KiB
Rust
50 lines
1 KiB
Rust
//@ run-pass
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//@ needs-threads
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//@ ignore-sgx no processes
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use std::cell::RefCell;
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use std::env;
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use std::process::Command;
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fn main() {
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let name = "YOU_ARE_THE_TEST";
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if env::var(name).is_ok() {
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std::thread::spawn(|| {
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TLS.with(|f| f.borrow().ensure());
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})
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.join()
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.unwrap();
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} else {
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let me = env::current_exe().unwrap();
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let output = Command::new(&me).env(name, "1").output().unwrap();
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println!("{:?}", output);
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assert!(output.status.success());
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let stderr = String::from_utf8(output.stderr).unwrap();
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assert!(stderr.contains("hello new\n"));
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assert!(stderr.contains("hello drop\n"));
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}
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}
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struct Stuff {
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_x: usize,
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}
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impl Stuff {
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fn new() -> Self {
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eprintln!("hello new");
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Self { _x: 0 }
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}
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fn ensure(&self) {}
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}
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impl Drop for Stuff {
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fn drop(&mut self) {
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eprintln!("hello drop");
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}
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}
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thread_local! {
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static TLS: RefCell<Stuff> = RefCell::new(Stuff::new());
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}
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