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#![warn(rust_2018_idioms)]
#![cfg(all(feature = "full", not(target_os = "wasi")))] // Wasi doesn't support panic recovery
use parking_lot::{const_mutex, Mutex};
use std::error::Error;
use std::panic;
use std::sync::Arc;
use tokio::runtime::Runtime;
use tokio::sync::mpsc::channel;
use tokio::time::{Duration, Instant};
use tokio_test::task;
use tokio_util::io::SyncIoBridge;
use tokio_util::sync::PollSender;
use tokio_util::task::LocalPoolHandle;
use tokio_util::time::DelayQueue;
// Taken from tokio-util::time::wheel, if that changes then
const MAX_DURATION_MS: u64 = (1 << (36)) - 1;
fn test_panic<Func: FnOnce() + panic::UnwindSafe>(func: Func) -> Option<String> {
static PANIC_MUTEX: Mutex<()> = const_mutex(());
{
let _guard = PANIC_MUTEX.lock();
let panic_file: Arc<Mutex<Option<String>>> = Arc::new(Mutex::new(None));
let prev_hook = panic::take_hook();
{
let panic_file = panic_file.clone();
panic::set_hook(Box::new(move |panic_info| {
let panic_location = panic_info.location().unwrap();
panic_file
.lock()
.clone_from(&Some(panic_location.file().to_string()));
}));
}
let result = panic::catch_unwind(func);
// Return to the previously set panic hook (maybe default) so that we get nice error
// messages in the tests.
panic::set_hook(prev_hook);
if result.is_err() {
panic_file.lock().clone()
} else {
None
}
}
}
#[test]
fn sync_bridge_new_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let _ = SyncIoBridge::new(tokio::io::empty());
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn poll_sender_send_item_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let (send, _) = channel::<u32>(3);
let mut send = PollSender::new(send);
let _ = send.send_item(42);
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn local_pool_handle_new_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let _ = LocalPoolHandle::new(0);
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn local_pool_handle_spawn_pinned_by_idx_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let handle = LocalPoolHandle::new(2);
handle.spawn_pinned_by_idx(|| async { "test" }, 3);
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn delay_queue_insert_at_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let mut queue = task::spawn(DelayQueue::with_capacity(3));
//let st = std::time::Instant::from(SystemTime::UNIX_EPOCH);
let _k = queue.insert_at(
"1",
Instant::now() + Duration::from_millis(MAX_DURATION_MS + 1),
);
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn delay_queue_insert_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let mut queue = task::spawn(DelayQueue::with_capacity(3));
let _k = queue.insert("1", Duration::from_millis(MAX_DURATION_MS + 1));
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn delay_queue_remove_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let mut queue = task::spawn(DelayQueue::with_capacity(3));
let key = queue.insert_at("1", Instant::now());
queue.remove(&key);
queue.remove(&key);
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn delay_queue_reset_at_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let mut queue = task::spawn(DelayQueue::with_capacity(3));
let key = queue.insert_at("1", Instant::now());
queue.reset_at(
&key,
Instant::now() + Duration::from_millis(MAX_DURATION_MS + 1),
);
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn delay_queue_reset_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let mut queue = task::spawn(DelayQueue::with_capacity(3));
let key = queue.insert_at("1", Instant::now());
queue.reset(&key, Duration::from_millis(MAX_DURATION_MS + 1));
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
#[test]
fn delay_queue_reserve_panic_caller() -> Result<(), Box<dyn Error>> {
let panic_location_file = test_panic(|| {
let rt = basic();
rt.block_on(async {
let mut queue = task::spawn(DelayQueue::<u32>::with_capacity(3));
queue.reserve((1 << 30) as usize);
});
});
// The panic location should be in this file
assert_eq!(&panic_location_file.unwrap(), file!());
Ok(())
}
fn basic() -> Runtime {
tokio::runtime::Builder::new_current_thread()
.enable_all()
.build()
.unwrap()
}
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