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forked from ROMEO/nexosim
nexosim/asynchronix/tests/integration/simulation_panic.rs
2024-11-15 16:52:24 +01:00

74 lines
2.0 KiB
Rust

//! Model panic reporting.
use asynchronix::model::Model;
use asynchronix::ports::Output;
use asynchronix::simulation::{ExecutionError, Mailbox, SimInit};
use asynchronix::time::MonotonicTime;
const MT_NUM_THREADS: usize = 4;
#[derive(Default)]
struct TestModel {
countdown_out: Output<usize>,
}
impl TestModel {
async fn countdown_in(&mut self, count: usize) {
if count == 0 {
panic!("test message");
}
self.countdown_out.send(count - 1).await;
}
}
impl Model for TestModel {}
/// Pass a counter around several models and decrement it each time, panicking
/// when it becomes zero.
fn model_panic(num_threads: usize) {
const MODEL_COUNT: usize = 5;
const INIT_COUNTDOWN: usize = 9;
// Connect all models in a cycle graph.
let mut model0 = TestModel::default();
let mbox0 = Mailbox::new();
let addr0 = mbox0.address();
let mut siminit = SimInit::with_num_threads(num_threads);
let mut addr = mbox0.address();
for model_id in (1..MODEL_COUNT).rev() {
let mut model = TestModel::default();
let mbox = Mailbox::new();
model.countdown_out.connect(TestModel::countdown_in, addr);
addr = mbox.address();
siminit = siminit.add_model(model, mbox, model_id.to_string());
}
model0.countdown_out.connect(TestModel::countdown_in, addr);
siminit = siminit.add_model(model0, mbox0, 0.to_string());
// Run the simulation.
let t0 = MonotonicTime::EPOCH;
let mut simu = siminit.init(t0).unwrap().0;
match simu.process_event(TestModel::countdown_in, INIT_COUNTDOWN, addr0) {
Err(ExecutionError::Panic { model, payload }) => {
let msg = payload.downcast_ref::<&str>().unwrap();
let panicking_model_id = INIT_COUNTDOWN % MODEL_COUNT;
assert_eq!(model, panicking_model_id.to_string());
assert_eq!(*msg, "test message");
}
_ => panic!("panic not detected"),
}
}
#[test]
fn model_panic_st() {
model_panic(1);
}
#[test]
fn model_panic_mt() {
model_panic(MT_NUM_THREADS);
}