Begin to add a test parachain

test/parachain/src/service.rs

@@ -0,0 +1,73 @@
+//! Service and ServiceFactory implementation. Specialized wrapper over substrate service.
+
+use std::sync::Arc;
+use std::time::Duration;
+use substrate_client::LongestChain;
+use futures::prelude::*;
+use parachain_runtime::{self, GenesisConfig, opaque::Block, RuntimeApi};
+use substrate_service::{error::{Error as ServiceError}, AbstractService, Configuration, ServiceBuilder};
+use transaction_pool::{self, txpool::{Pool as TransactionPool}};
+use inherents::InherentDataProviders;
+use network::construct_simple_protocol;
+use substrate_executor::native_executor_instance;
+pub use substrate_executor::NativeExecutor;
+
+// Our native executor instance.
+native_executor_instance!(
+	pub Executor,
+	parachain_runtime::api::dispatch,
+	parachain_runtime::native_version,
+);
+
+construct_simple_protocol! {
+	/// Demo protocol attachment for substrate.
+	pub struct NodeProtocol where Block = Block { }
+}
+
+/// Starts a `ServiceBuilder` for a full service.
+///
+/// Use this macro if you don't actually need the full service, but just the builder in order to
+/// be able to perform chain operations.
+macro_rules! new_full_start {
+	($config:expr) => {{
+		let inherent_data_providers = inherents::InherentDataProviders::new();
+
+		let builder = substrate_service::ServiceBuilder::new_full::<
+			parachain_runtime::opaque::Block, parachain_runtime::RuntimeApi, crate::service::Executor,
+		>($config)?
+			.with_select_chain(|_config, backend| {
+				Ok(substrate_client::LongestChain::new(backend.clone()))
+			})?
+			.with_transaction_pool(|config, client|
+				Ok(transaction_pool::txpool::Pool::new(config, transaction_pool::FullChainApi::new(client)))
+			)?
+			.with_import_queue(|_config, client, _, _| {
+				let import_queue = cumulus_consensus::import_queue::import_queue(
+					client.clone(),
+					client,
+					inherent_data_providers.clone(),
+				)?;
+
+				Ok(import_queue)
+			})?;
+
+		(builder, inherent_data_providers)
+	}}
+}
+
+/// Builds a new service for a full client.
+pub fn new_full<C: Send + Default + 'static>(config: Configuration<C, GenesisConfig>)
+	-> Result<impl AbstractService, ServiceError>
+{
+	let is_authority = config.roles.is_authority();
+	let name = config.name.clone();
+	let disable_grandpa = config.disable_grandpa;
+	let force_authoring = config.force_authoring;
+
+	let (builder, inherent_data_providers) = new_full_start!(config);
+
+	let service = builder.with_network_protocol(|_| Ok(NodeProtocol::new()))?.build()?;
+
+	Ok(service)
+}
+