Integration tests (#805)

* Started substrate tests

* Sync test

* Test updates

* Improved tests

* Use on-chain block delay

* Parallel test execution

* Otimized tests

* Logging

* Fixed racing test

* Fixed compilation

* Fixed timestamp test

* Removed rlp dependency

* Minor fixes

* Fixed tests

* Removed best_block_id and resolved fdlimit issue

* Whitespace

* Use keyring

* Style

* Added API execution setting

* Removed stale import

substrate/node/consensus/src/lib.rs

@@ -209,6 +209,8 @@ pub struct ProposerFactory<N, C> where
 	pub handle: TaskExecutor,
 	/// Offline-tracker.
 	pub offline: SharedOfflineTracker,
+	/// Force delay in evaluation this long.
+	pub force_delay: Timestamp,
 }
 
 impl<N, C> bft::Environment<<C as AuthoringApi>::Block> for ProposerFactory<N, C> where
@@ -228,9 +230,7 @@ impl<N, C> bft::Environment<<C as AuthoringApi>::Block> for ProposerFactory<N, C
 		authorities: &[AuthorityId],
 		sign_with: Arc<ed25519::Pair>,
 	) -> Result<(Self::Proposer, Self::Input, Self::Output)> {
-		// force delay in evaluation this long.
-		const FORCE_DELAY: Timestamp = 5;
-
+		use runtime_primitives::traits::Hash as HashT;
 		let parent_hash = parent_header.hash();
 
 		let id = BlockId::hash(parent_hash);
@@ -261,7 +261,7 @@ impl<N, C> bft::Environment<<C as AuthoringApi>::Block> for ProposerFactory<N, C
 			transaction_pool: self.transaction_pool.clone(),
 			offline: self.offline.clone(),
 			validators,
-			minimum_timestamp: current_timestamp() + FORCE_DELAY,
+			minimum_timestamp: current_timestamp() + self.force_delay,
 		};
 
 		Ok((proposer, input, output))

substrate/node/consensus/src/service.rs

@@ -79,6 +79,7 @@ impl Service {
 		transaction_pool: Arc<TransactionPool<A>>,
 		thread_pool: ThreadPoolHandle,
 		key: ed25519::Pair,
+		block_delay: u64,
 	) -> Service
 		where
 			A: AuthoringApi + TPClient<Block = <A as AuthoringApi>::Block> + 'static,
@@ -105,6 +106,7 @@ impl Service {
 				network,
 				handle: thread_pool.clone(),
 				offline: Arc::new(RwLock::new(OfflineTracker::new())),
+				force_delay: block_delay,
 			};
 			let bft_service = Arc::new(BftService::new(client.clone(), key, factory));