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#![cfg(feature = "managed")]
use std::sync::atomic::{AtomicUsize, Ordering};
use deadpool::managed::{Hook, HookError, Manager, Metrics, Pool, RecycleResult};
struct Computer {
next_id: AtomicUsize,
}
impl Computer {
pub fn new(start: usize) -> Self {
Self {
next_id: AtomicUsize::new(start),
}
}
}
impl Manager for Computer {
type Type = usize;
type Error = ();
async fn create(&self) -> Result<Self::Type, Self::Error> {
Ok(self.next_id.fetch_add(1, Ordering::Relaxed))
}
async fn recycle(&self, _: &mut Self::Type, _: &Metrics) -> RecycleResult<Self::Error> {
Ok(())
}
}
#[tokio::test]
async fn post_create_ok() {
let manager = Computer::new(42);
let pool = Pool::<Computer>::builder(manager)
.max_size(1)
.post_create(Hook::sync_fn(|obj, _| {
*obj += 1;
Ok(())
}))
.build()
.unwrap();
assert!(*pool.get().await.unwrap() == 43);
}
#[tokio::test]
async fn post_create_ok_async() {
let manager = Computer::new(42);
let pool = Pool::<Computer>::builder(manager)
.max_size(1)
.post_create(Hook::async_fn(|obj, _| {
Box::pin(async move {
*obj += 1;
Ok(())
})
}))
.build()
.unwrap();
assert!(*pool.get().await.unwrap() == 43);
}
#[tokio::test]
async fn post_create_err_abort() {
let manager = Computer::new(0);
let pool = Pool::<Computer>::builder(manager)
.max_size(3)
.post_create(Hook::sync_fn(|obj, _| {
(*obj % 2 == 0)
.then_some(())
.ok_or(HookError::message("odd creation"))
}))
.build()
.unwrap();
let obj1 = pool.get().await.unwrap();
assert_eq!(*obj1, 0);
assert!(pool.get().await.is_err());
let obj2 = pool.get().await.unwrap();
assert_eq!(*obj2, 2);
assert!(pool.get().await.is_err());
let obj2 = pool.get().await.unwrap();
assert_eq!(*obj2, 4);
}
#[tokio::test]
async fn pre_recycle_ok() {
let manager = Computer::new(42);
let pool = Pool::<Computer>::builder(manager)
.max_size(1)
.pre_recycle(Hook::sync_fn(|obj, _| {
*obj += 1;
Ok(())
}))
.build()
.unwrap();
assert!(*pool.get().await.unwrap() == 42);
assert!(*pool.get().await.unwrap() == 43);
assert!(*pool.get().await.unwrap() == 44);
assert!(*pool.get().await.unwrap() == 45);
}
#[tokio::test]
async fn pre_recycle_err_continue() {
let manager = Computer::new(0);
let pool = Pool::<Computer>::builder(manager)
.max_size(1)
.pre_recycle(Hook::sync_fn(|_, metrics| {
if metrics.recycle_count > 0 {
Err(HookError::message("Fail!"))
} else {
Ok(())
}
}))
.build()
.unwrap();
assert_eq!(*pool.get().await.unwrap(), 0);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 0);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 1);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 1);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 2);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 2);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
}
#[tokio::test]
async fn post_recycle_ok() {
let manager = Computer::new(42);
let pool = Pool::<Computer>::builder(manager)
.max_size(1)
.post_recycle(Hook::sync_fn(|obj, _| {
*obj += 1;
Ok(())
}))
.build()
.unwrap();
assert!(*pool.get().await.unwrap() == 42);
assert!(*pool.get().await.unwrap() == 43);
assert!(*pool.get().await.unwrap() == 44);
assert!(*pool.get().await.unwrap() == 45);
}
#[tokio::test]
async fn post_recycle_err_continue() {
let manager = Computer::new(0);
let pool = Pool::<Computer>::builder(manager)
.max_size(1)
.post_recycle(Hook::sync_fn(|_, metrics| {
if metrics.recycle_count > 0 {
Err(HookError::message("Fail!"))
} else {
Ok(())
}
}))
.build()
.unwrap();
assert_eq!(*pool.get().await.unwrap(), 0);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 0);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 1);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 1);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 2);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
assert_eq!(*pool.get().await.unwrap(), 2);
assert_eq!(pool.status().available, 1);
assert_eq!(pool.status().size, 1);
}
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