| // Copyright 2021 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| use { |
| anyhow::{anyhow, Error, Result}, |
| fidl::endpoints::DiscoverableProtocolMarker, |
| fidl_fuchsia_driver_test as fdt, fidl_fuchsia_offers_test as ft, fuchsia_async as fasync, |
| fuchsia_component::server::ServiceFs, |
| fuchsia_component_test::{ChildOptions, LocalComponentHandles, RealmBuilder}, |
| fuchsia_driver_test::{DriverTestRealmBuilder, DriverTestRealmInstance}, |
| futures::{channel::mpsc, StreamExt, TryStreamExt}, |
| }; |
| |
| const WAITER_NAME: &'static str = "waiter"; |
| |
| async fn waiter_serve(mut stream: ft::WaiterRequestStream, mut sender: mpsc::Sender<()>) { |
| while let Some(ft::WaiterRequest::Ack { .. }) = stream.try_next().await.expect("Stream failed") |
| { |
| sender.try_send(()).expect("Sender failed") |
| } |
| } |
| |
| async fn waiter_component( |
| handles: LocalComponentHandles, |
| sender: mpsc::Sender<()>, |
| ) -> Result<(), Error> { |
| let mut fs = ServiceFs::new(); |
| fs.dir("svc").add_fidl_service(move |stream: ft::WaiterRequestStream| { |
| fasync::Task::spawn(waiter_serve(stream, sender.clone())).detach() |
| }); |
| fs.serve_connection(handles.outgoing_dir)?; |
| Ok(fs.collect::<()>().await) |
| } |
| |
| #[fasync::run_singlethreaded(test)] |
| async fn test_dynamic_offers() -> Result<()> { |
| let (sender, mut receiver) = mpsc::channel(1); |
| |
| // Create the RealmBuilder. |
| let builder = RealmBuilder::new().await?; |
| builder.driver_test_realm_setup().await?; |
| let waiter = builder |
| .add_local_child( |
| WAITER_NAME, |
| move |handles: LocalComponentHandles| { |
| Box::pin(waiter_component(handles, sender.clone())) |
| }, |
| ChildOptions::new(), |
| ) |
| .await?; |
| builder.driver_test_realm_add_offer::<ft::WaiterMarker>((&waiter).into()).await?; |
| // Build the Realm. |
| let instance = builder.build().await?; |
| |
| let offers = vec![fdt::Offer { |
| protocol_name: ft::WaiterMarker::PROTOCOL_NAME.to_string(), |
| collection: fdt::Collection::PackageDrivers, |
| }]; |
| |
| // Start the DriverTestRealm. |
| let args = fdt::RealmArgs { |
| root_driver: Some("#meta/root.cm".to_string()), |
| offers: Some(offers), |
| ..Default::default() |
| }; |
| instance.driver_test_realm_start(args).await?; |
| |
| // Wait for the driver to call Waiter.Done. |
| receiver.next().await.ok_or(anyhow!("Receiver failed")) |
| } |