rpc.rs

use std::cell::RefCell;
use std::rc::Rc;

use log::info;

use rpc_core::request::FinallyType;

#[test]
fn rpc() {
    std::env::set_var("RUST_LOG", "trace");
    env_logger::init();

    // loopback connection
    let (connection_s, connection_c) = rpc_core::connection::LoopbackConnection::new();

    // rpc server
    let rpc_s = rpc_core::rpc::Rpc::new(Some(connection_s));
    rpc_s.set_timer(|ms: u32, _: Box<dyn Fn()>| {
        info!("set_timer: {ms}");
    });
    rpc_s.set_ready(true);

    rpc_s.subscribe("cmd", |msg: String| -> String {
        assert_eq!(msg, "hello");
        "world".to_string()
    });

    // rpc client
    let rpc_c = rpc_core::rpc::Rpc::new(Some(connection_c));
    rpc_c.set_timer(|ms: u32, _: Box<dyn Fn()>| {
        info!("set_timer: {ms}");
    });
    rpc_c.set_ready(true);

    // test code
    let pass = Rc::new(RefCell::new(false));
    let pass_clone = pass.clone();
    rpc_c
        .cmd("cmd")
        .msg("hello")
        .rsp(move |msg: String| {
            assert_eq!(msg, "world");
            *pass_clone.borrow_mut() = true;
        })
        .call();
    assert!(*pass.borrow());

    info!("--- test unsubscribe ---");
    rpc_s.subscribe("x", |_: ()| {});
    rpc_s.unsubscribe("x");

    info!("--- test ping ---");
    *pass.borrow_mut() = false;
    let pass_clone = pass.clone();
    rpc_c.ping();
    rpc_c
        .ping_msg("hello")
        .rsp(move |msg: String| {
            info!("rsp: {}", msg);
            *pass_clone.borrow_mut() = true;
        })
        .call();
    assert!(*pass.borrow());

    info!("--- test request ---");
    {
        let request = rpc_core::request::Request::new();
        let pass = Rc::new(RefCell::new(false));
        let pass_clone = pass.clone();
        request
            .cmd("cmd")
            .msg("hello")
            .rsp(move |msg: String| {
                assert_eq!(msg, "world");
                *pass_clone.borrow_mut() = true;
            })
            .call_with_rpc(rpc_c.clone());
        assert!(*pass.borrow());
    }

    info!("--- test dispose ---");
    {
        info!("--- dispose test RAII ---");
        rpc_s.subscribe("cmd", |_: String| -> String {
            assert!(false);
            "".to_string()
        });

        let pass = Rc::new(RefCell::new(false));
        let pass_clone = pass.clone();
        let request = rpc_c.cmd("cmd");
        request
            .msg("hello")
            .rsp(|_: String| {
                assert!(false);
            })
            .finally(move |t| {
                assert_eq!(t, FinallyType::Canceled);
                *pass_clone.borrow_mut() = true;
            });
        {
            let mut dispose = rpc_core::dispose::Dispose::new();
            request.add_to(&mut dispose);
        }
        request.call();
        assert!(*pass.borrow());
    }
    {
        info!("--- dispose test remove ---");
        rpc_s.subscribe("cmd", |_: String| -> String { "".to_string() });

        let pass = Rc::new(RefCell::new(false));
        let pass_clone = pass.clone();
        let request = rpc_c.cmd("cmd");
        request
            .msg("hello")
            .rsp(|_: String| {
                assert!(true);
            })
            .finally(move |t| {
                assert_eq!(t, FinallyType::Normal);
                *pass_clone.borrow_mut() = true;
            });
        {
            let mut dispose = rpc_core::dispose::Dispose::new();
            request.add_to(&mut dispose);
            dispose.remove(&request);
        }
        request.call();
        assert!(*pass.borrow());
    }
}