lib.rs

		fn mmr_root() -> Result<mmr::Hash, mmr::Error> {
			Ok(Mmr::mmr_root())
		}

		fn generate_batch_proof(leaf_indices: Vec<pallet_mmr::primitives::LeafIndex>)
			-> Result<(Vec<mmr::EncodableOpaqueLeaf>, mmr::BatchProof<mmr::Hash>), mmr::Error>
		{
			Mmr::generate_batch_proof(leaf_indices)
				.map(|(leaves, proof)| (leaves.into_iter().map(|leaf| mmr::EncodableOpaqueLeaf::from_leaf(&leaf)).collect(), proof))
		}

		fn verify_batch_proof(leaves: Vec<mmr::EncodableOpaqueLeaf>, proof: mmr::BatchProof<mmr::Hash>)
			-> Result<(), mmr::Error>
		{
			let leaves = leaves.into_iter().map(|leaf|
				leaf.into_opaque_leaf()
				.try_decode()
				.ok_or(mmr::Error::Verify)).collect::<Result<Vec<mmr::Leaf>, mmr::Error>>()?;
			Mmr::verify_leaves(leaves, proof)
		}

		fn verify_batch_proof_stateless(
			root: mmr::Hash,
			leaves: Vec<mmr::EncodableOpaqueLeaf>,
			proof: mmr::BatchProof<mmr::Hash>
		) -> Result<(), mmr::Error> {
			let nodes = leaves.into_iter().map(|leaf|mmr::DataOrHash::Data(leaf.into_opaque_leaf())).collect();
			pallet_mmr::verify_leaves_proof::<mmr::Hashing, _>(root, nodes, proof)
		}
	}

	impl sp_session::SessionKeys<Block> for Runtime {
		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
			SessionKeys::generate(seed)
		}

		fn decode_session_keys(
			encoded: Vec<u8>,
		) -> Option<Vec<(Vec<u8>, KeyTypeId)>> {
			SessionKeys::decode_into_raw_public_keys(&encoded)
		}
	}

	#[cfg(feature = "try-runtime")]
	impl frame_try_runtime::TryRuntime<Block> for Runtime {
		fn on_runtime_upgrade() -> (Weight, Weight) {
			// NOTE: intentional unwrap: we don't want to propagate the error backwards, and want to
			// have a backtrace here. If any of the pre/post migration checks fail, we shall stop
			// right here and right now.
			let weight = Executive::try_runtime_upgrade().unwrap();
			(weight, RuntimeBlockWeights::get().max_block)
		}

		fn execute_block_no_check(block: Block) -> Weight {
			Executive::execute_block_no_check(block)
		}
	}

	#[cfg(feature = "runtime-benchmarks")]
	impl frame_benchmarking::Benchmark<Block> for Runtime {
		fn benchmark_metadata(extra: bool) -> (
			Vec<frame_benchmarking::BenchmarkList>,
			Vec<frame_support::traits::StorageInfo>,
		) {
			use frame_benchmarking::{baseline, Benchmarking, BenchmarkList};
			use frame_support::traits::StorageInfoTrait;

			// Trying to add benchmarks directly to the Session Pallet caused cyclic dependency
			// issues. To get around that, we separated the Session benchmarks into its own crate,
			// which is why we need these two lines below.
			use pallet_session_benchmarking::Pallet as SessionBench;
			use pallet_offences_benchmarking::Pallet as OffencesBench;
			use pallet_election_provider_support_benchmarking::Pallet as EPSBench;
			use frame_system_benchmarking::Pallet as SystemBench;
			use baseline::Pallet as BaselineBench;
			use pallet_nomination_pools_benchmarking::Pallet as NominationPoolsBench;

			let mut list = Vec::<BenchmarkList>::new();
			list_benchmarks!(list, extra);

			let storage_info = AllPalletsWithSystem::storage_info();

			(list, storage_info)
		}

		fn dispatch_benchmark(
			config: frame_benchmarking::BenchmarkConfig
		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, sp_runtime::RuntimeString> {
			use frame_benchmarking::{baseline, Benchmarking, BenchmarkBatch,  TrackedStorageKey};

			// Trying to add benchmarks directly to the Session Pallet caused cyclic dependency
			// issues. To get around that, we separated the Session benchmarks into its own crate,
			// which is why we need these two lines below.
			use pallet_session_benchmarking::Pallet as SessionBench;
			use pallet_offences_benchmarking::Pallet as OffencesBench;
			use pallet_election_provider_support_benchmarking::Pallet as EPSBench;
			use frame_system_benchmarking::Pallet as SystemBench;
			use baseline::Pallet as BaselineBench;
			use pallet_nomination_pools_benchmarking::Pallet as NominationPoolsBench;

			impl pallet_session_benchmarking::Config for Runtime {}
			impl pallet_offences_benchmarking::Config for Runtime {}
			impl pallet_election_provider_support_benchmarking::Config for Runtime {}
			impl frame_system_benchmarking::Config for Runtime {}
			impl baseline::Config for Runtime {}
			impl pallet_nomination_pools_benchmarking::Config for Runtime {}

			let whitelist: Vec<TrackedStorageKey> = vec![
				// Block Number
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef702a5c1b19ab7a04f536c519aca4983ac").to_vec().into(),
				// Total Issuance
				hex_literal::hex!("c2261276cc9d1f8598ea4b6a74b15c2f57c875e4cff74148e4628f264b974c80").to_vec().into(),
				// Execution Phase
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7ff553b5a9862a516939d82b3d3d8661a").to_vec().into(),
				// Event Count
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef70a98fdbe9ce6c55837576c60c7af3850").to_vec().into(),
				// System Events
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef780d41e5e16056765bc8461851072c9d7").to_vec().into(),
				// System BlockWeight
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef734abf5cb34d6244378cddbf18e849d96").to_vec().into(),
				// Treasury Account
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7b99d880ec681799c0cf30e8886371da95ecffd7b6c0f78751baa9d281e0bfa3a6d6f646c70792f74727372790000000000000000000000000000000000000000").to_vec().into(),
			];

			let mut batches = Vec::<BenchmarkBatch>::new();
			let params = (&config, &whitelist);
			add_benchmarks!(params, batches);
			Ok(batches)
		}
	}
}

#[cfg(test)]
mod tests {
	use super::*;
	use frame_election_provider_support::NposSolution;
	use frame_system::offchain::CreateSignedTransaction;
	use sp_runtime::UpperOf;

	#[test]
	fn validate_transaction_submitter_bounds() {
		fn is_submit_signed_transaction<T>()
		where
			T: CreateSignedTransaction<Call>,
		{
		}

		is_submit_signed_transaction::<Runtime>();
	}

	#[test]
	fn perbill_as_onchain_accuracy() {
		type OnChainAccuracy =
			<<Runtime as pallet_election_provider_multi_phase::MinerConfig>::Solution as NposSolution>::Accuracy;
		let maximum_chain_accuracy: Vec<UpperOf<OnChainAccuracy>> = (0..MaxNominations::get())
			.map(|_| <UpperOf<OnChainAccuracy>>::from(OnChainAccuracy::one().deconstruct()))
			.collect();
		let _: UpperOf<OnChainAccuracy> =
			maximum_chain_accuracy.iter().fold(0, |acc, x| acc.checked_add(*x).unwrap());
	}

	#[test]
	fn call_size() {
		let size = core::mem::size_of::<Call>();
		assert!(
			size <= 208,
			"size of Call {} is more than 208 bytes: some calls have too big arguments, use Box to reduce the
			size of Call.
			If the limit is too strong, maybe consider increase the limit to 300.",
			size,
		);
	}
}