companion: Babe remove inherent (#2438)

node/test/client/Cargo.toml

@@ -25,6 +25,7 @@ sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-consensus-babe = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sp-state-machine = { git = "https://github.com/paritytech/substrate", branch = "master" }
 
 [dev-dependencies]

node/test/client/src/block_builder.rs

@@ -17,8 +17,9 @@
 use crate::{Client, FullBackend};
 use polkadot_test_runtime::{GetLastTimestamp, UncheckedExtrinsic};
 use polkadot_primitives::v1::Block;
-use sp_runtime::generic::BlockId;
+use sp_runtime::{generic::BlockId, Digest, DigestItem};
 use sp_api::ProvideRuntimeApi;
+use sp_consensus_babe::{BABE_ENGINE_ID, digests::{PreDigest, SecondaryPlainPreDigest}};
 use sc_block_builder::{BlockBuilderProvider, BlockBuilder};
 use sp_state_machine::BasicExternalities;
 use parity_scale_codec::{Encode, Decode};
@@ -52,10 +53,6 @@ impl InitPolkadotBlockBuilder for Client {
 		&self,
 		at: &BlockId<Block>,
 	) -> BlockBuilder<Block, Client, FullBackend> {
-		let mut block_builder = self.new_block_at(at, Default::default(), false)
-			.expect("Creates new block builder for test runtime");
-
-		let mut inherent_data = sp_inherents::InherentData::new();
 		let last_timestamp = self
 			.runtime_api()
 			.get_last_timestamp(&at)
@@ -67,6 +64,29 @@ impl InitPolkadotBlockBuilder for Client {
 
 		let timestamp = last_timestamp + minimum_period;
 
+		// `SlotDuration` is a storage parameter type that requires externalities to access the value.
+		let slot_duration = BasicExternalities::new_empty()
+			.execute_with(|| polkadot_test_runtime::SlotDuration::get());
+
+		let slot = (timestamp / slot_duration).into();
+
+		let digest = Digest {
+			logs: vec![
+				DigestItem::PreRuntime(
+					BABE_ENGINE_ID,
+					PreDigest::SecondaryPlain(SecondaryPlainPreDigest {
+						slot,
+						authority_index: 42,
+					}).encode()
+				),
+			],
+		};
+
+		let mut block_builder = self.new_block_at(at, digest, false)
+			.expect("Creates new block builder for test runtime");
+
+		let mut inherent_data = sp_inherents::InherentData::new();
+
 		inherent_data
 			.put_data(sp_timestamp::INHERENT_IDENTIFIER, &timestamp)
 			.expect("Put timestamp inherent data");

runtime/kusama/src/lib.rs

@@ -980,7 +980,7 @@ construct_runtime! {
 		RandomnessCollectiveFlip: pallet_randomness_collective_flip::{Module, Storage} = 32,
 
 		// Must be before session.
-		Babe: pallet_babe::{Module, Call, Storage, Config, Inherent, ValidateUnsigned} = 1,
+		Babe: pallet_babe::{Module, Call, Storage, Config, ValidateUnsigned} = 1,
 
 		Timestamp: pallet_timestamp::{Module, Call, Storage, Inherent} = 2,
 		Indices: pallet_indices::{Module, Call, Storage, Config<T>, Event<T>} = 3,

runtime/polkadot/src/lib.rs

@@ -985,7 +985,7 @@ construct_runtime! {
 		Scheduler: pallet_scheduler::{Module, Call, Storage, Event<T>} = 1,
 
 		// Must be before session.
-		Babe: pallet_babe::{Module, Call, Storage, Config, Inherent, ValidateUnsigned} = 2,
+		Babe: pallet_babe::{Module, Call, Storage, Config, ValidateUnsigned} = 2,
 
 		Timestamp: pallet_timestamp::{Module, Call, Storage, Inherent} = 3,
 		Indices: pallet_indices::{Module, Call, Storage, Config<T>, Event<T>} = 4,

runtime/rococo/src/lib.rs

@@ -168,7 +168,7 @@ construct_runtime! {
 		System: frame_system::{Module, Call, Storage, Config, Event<T>},
 
 		// Must be before session.
-		Babe: pallet_babe::{Module, Call, Storage, Config, Inherent, ValidateUnsigned},
+		Babe: pallet_babe::{Module, Call, Storage, Config, ValidateUnsigned},
 
 		Timestamp: pallet_timestamp::{Module, Call, Storage, Inherent},
 		Indices: pallet_indices::{Module, Call, Storage, Config<T>, Event<T>},

runtime/test-runtime/src/lib.rs

@@ -491,7 +491,7 @@ construct_runtime! {
 		RandomnessCollectiveFlip: pallet_randomness_collective_flip::{Module, Storage},
 
 		// Must be before session.
-		Babe: pallet_babe::{Module, Call, Storage, Config, Inherent},
+		Babe: pallet_babe::{Module, Call, Storage, Config},
 
 		Timestamp: pallet_timestamp::{Module, Call, Storage, Inherent},
 		Indices: pallet_indices::{Module, Call, Storage, Config<T>, Event<T>},

runtime/westend/src/lib.rs

@@ -690,7 +690,7 @@ construct_runtime! {
 		RandomnessCollectiveFlip: pallet_randomness_collective_flip::{Module, Storage} = 25,
 
 		// Must be before session.
-		Babe: pallet_babe::{Module, Call, Storage, Config, Inherent, ValidateUnsigned} = 1,
+		Babe: pallet_babe::{Module, Call, Storage, Config, ValidateUnsigned} = 1,
 
 		Timestamp: pallet_timestamp::{Module, Call, Storage, Inherent} = 2,
 		Indices: pallet_indices::{Module, Call, Storage, Config<T>, Event<T>} = 3,