Fix failing offences bench test (#13712)

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

frame/offences/benchmarking/src/lib.rs

@@ -335,6 +335,12 @@ benchmarks! {
 			let balance_slash = |id| core::iter::once(
 				<T as BalancesConfig>::RuntimeEvent::from(pallet_balances::Event::<T>::Slashed{ who: id, amount: slash_amount.into() })
 			);
+			let balance_locked = |id| core::iter::once(
+				<T as BalancesConfig>::RuntimeEvent::from(pallet_balances::Event::<T>::Locked{ who: id, amount: slash_amount.into() })
+			);
+			let balance_unlocked = |id| core::iter::once(
+				<T as BalancesConfig>::RuntimeEvent::from(pallet_balances::Event::<T>::Unlocked{ who: id, amount: slash_amount.into() })
+			);
 			let chill = |id| core::iter::once(
 				<T as StakingConfig>::RuntimeEvent::from(StakingEvent::<T>::Chilled{ stash: id })
 			);
@@ -349,12 +355,15 @@ benchmarks! {
 			let slash_events = raw_offenders.into_iter()
 				.flat_map(|offender| {
 					let nom_slashes = offender.nominator_stashes.into_iter().flat_map(|nom| {
-						balance_slash(nom.clone()).map(Into::into).chain(slash(nom).map(Into::into)).map(Box::new)
+						balance_slash(nom.clone()).map(Into::into)
+						.chain(balance_unlocked(nom.clone()).map(Into::into))
+						.chain(slash(nom).map(Into::into)).map(Box::new)
 					});
 
 					let events = chill(offender.stash.clone()).map(Into::into).map(Box::new)
 						.chain(slash_report(offender.stash.clone()).map(Into::into).map(Box::new))
 						.chain(balance_slash(offender.stash.clone()).map(Into::into).map(Box::new))
+						.chain(balance_unlocked(offender.stash.clone()).map(Into::into).map(Box::new))
 						.chain(slash(offender.stash).map(Into::into).map(Box::new))
 						.chain(nom_slashes)
 						.collect::<Vec<_>>();

frame/offences/benchmarking/src/mock.rs

@@ -65,7 +65,7 @@ impl frame_system::Config for Test {
 }
 
 impl pallet_balances::Config for Test {
-	type MaxLocks = ();
+	type MaxLocks = ConstU32<128>;
 	type MaxReserves = ();
 	type ReserveIdentifier = [u8; 8];
 	type Balance = Balance;