77 lines
2.7 KiB
Rust
77 lines
2.7 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use std::sync::{atomic, Arc};
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use jsonrpc_core::{self as core, MetaIoHandler};
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use jsonrpc_core::futures::{self, Stream, Future};
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use jsonrpc_pubsub::Session;
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use parity_reactor::EventLoop;
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use v1::{PubSub, PubSubClient, Metadata};
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fn rpc() -> MetaIoHandler<Metadata, core::NoopMiddleware> {
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let mut io = MetaIoHandler::default();
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let called = atomic::AtomicBool::new(false);
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io.add_method("hello", move |_| {
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if !called.load(atomic::Ordering::SeqCst) {
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called.store(true, atomic::Ordering::SeqCst);
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Ok(core::Value::String("hello".into()))
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} else {
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Ok(core::Value::String("world".into()))
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}
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});
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io
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}
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#[test]
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fn should_subscribe_to_a_method() {
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// given
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let el = EventLoop::spawn();
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let rpc = rpc();
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let pubsub = PubSubClient::new(rpc, el.remote()).to_delegate();
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let mut io = MetaIoHandler::default();
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io.extend_with(pubsub);
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let mut metadata = Metadata::default();
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let (sender, receiver) = futures::sync::mpsc::channel(8);
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metadata.session = Some(Arc::new(Session::new(sender)));
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// Subscribe
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let request = r#"{"jsonrpc": "2.0", "method": "parity_subscribe", "params": ["hello", []], "id": 1}"#;
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let response = r#"{"jsonrpc":"2.0","result":1,"id":1}"#;
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assert_eq!(io.handle_request_sync(request, metadata.clone()), Some(response.to_owned()));
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// Check notifications
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let (res, receiver) = receiver.into_future().wait().unwrap();
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let response = r#"{"jsonrpc":"2.0","method":"parity_subscription","params":{"result":"hello","subscription":1}}"#;
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assert_eq!(res, Some(response.into()));
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let (res, receiver) = receiver.into_future().wait().unwrap();
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let response = r#"{"jsonrpc":"2.0","method":"parity_subscription","params":{"result":"world","subscription":1}}"#;
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assert_eq!(res, Some(response.into()));
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// And unsubscribe
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let request = r#"{"jsonrpc": "2.0", "method": "parity_unsubscribe", "params": [1], "id": 1}"#;
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let response = r#"{"jsonrpc":"2.0","result":true,"id":1}"#;
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assert_eq!(io.handle_request_sync(request, metadata), Some(response.to_owned()));
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let (res, _receiver) = receiver.into_future().wait().unwrap();
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assert_eq!(res, None);
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}
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