Files
dagx/tests/runtimes/async_std.rs
T

65 lines
1.4 KiB
Rust

//! Runtime compatibility tests for async-std
use crate::common::task_fn;
use dagx::DagRunner;
struct Value(i32);
#[dagx::task]
impl Value {
async fn run(&mut self) -> i32 {
self.0
}
}
struct Add;
#[dagx::task]
impl Add {
async fn run(&mut self, a: &i32, b: &i32) -> i32 {
a + b
}
}
#[async_std::test]
async fn test_basic_dag_async_std() {
let dag = DagRunner::new();
let x = dag.add_task(Value(2));
let y = dag.add_task(Value(3));
let sum = dag.add_task(Add).depends_on((&x, &y));
dag.run(async_std::task::spawn).await.unwrap();
assert_eq!(dag.get(sum).unwrap(), 5);
}
#[async_std::test]
async fn test_parallel_execution_async_std() {
let dag = DagRunner::new();
let tasks: Vec<_> = (0..10)
.map(|i| dag.add_task(task_fn(move |_: ()| async move { i * 2 })))
.collect();
dag.run(async_std::task::spawn).await.unwrap();
for (i, task) in tasks.iter().enumerate() {
assert_eq!(dag.get(task).unwrap(), i * 2);
}
}
#[async_std::test]
async fn test_complex_dependencies_async_std() {
let dag = DagRunner::new();
let a = dag.add_task(Value(10));
let b = dag.add_task(Value(20));
let sum = dag.add_task(Add).depends_on((&a, &b));
let double = dag
.add_task(task_fn(|x: i32| async move { x * 2 }))
.depends_on(sum);
dag.run(async_std::task::spawn).await.unwrap();
assert_eq!(dag.get(double).unwrap(), 60);
}