Balances: Configurable Number of Genesis Accounts with Specified Balances for Benchmarking

bridges/modules/messages/src/tests/mock.rs

@@ -461,7 +461,7 @@ pub fn inbound_unrewarded_relayers_state(lane: TestLaneIdType) -> UnrewardedRela
 /// Return test externalities to use in tests.
 pub fn new_test_ext() -> sp_io::TestExternalities {
 	let mut t = frame_system::GenesisConfig::<TestRuntime>::default().build_storage().unwrap();
-	pallet_balances::GenesisConfig::<TestRuntime> { balances: vec![(ENDOWED_ACCOUNT, 1_000_000)] }
+	pallet_balances::GenesisConfig::<TestRuntime> { balances: vec![(ENDOWED_ACCOUNT, 1_000_000)], ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 	sp_io::TestExternalities::new(t)

cumulus/pallets/collator-selection/src/mock.rs

@@ -188,7 +188,7 @@ pub fn new_test_ext() -> sp_io::TestExternalities {
 		invulnerables,
 	};
 	let session = pallet_session::GenesisConfig::<Test> { keys, ..Default::default() };
-	pallet_balances::GenesisConfig::<Test> { balances }
+	pallet_balances::GenesisConfig::<Test> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 	// collator selection must be initialized before session.

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/genesis_config_presets.rs

@@ -37,6 +37,7 @@ fn asset_hub_rococo_genesis(
 	build_struct_json_patch!(RuntimeGenesisConfig {
 		balances: BalancesConfig {
 			balances: endowed_accounts.iter().cloned().map(|k| (k, endowment)).collect(),
+			..Default::default()
 		},
 		parachain_info: ParachainInfoConfig { parachain_id: id },
 		collator_selection: CollatorSelectionConfig {

cumulus/parachains/runtimes/assets/asset-hub-westend/src/genesis_config_presets.rs

@@ -39,6 +39,7 @@ fn asset_hub_westend_genesis(
 	build_struct_json_patch!(RuntimeGenesisConfig {
 		balances: BalancesConfig {
 			balances: endowed_accounts.iter().cloned().map(|k| (k, endowment)).collect(),
+			..Default::default()
 		},
 		parachain_info: ParachainInfoConfig { parachain_id: id },
 		collator_selection: CollatorSelectionConfig {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/genesis_config_presets.rs

@@ -42,6 +42,7 @@ fn bridge_hub_rococo_genesis(
 				.cloned()
 				.map(|k| (k, 1u128 << 60))
 				.collect::<Vec<_>>(),
+			..Default::default()
 		},
 		parachain_info: ParachainInfoConfig { parachain_id: id },
 		collator_selection: CollatorSelectionConfig {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/genesis_config_presets.rs

@@ -42,6 +42,7 @@ fn bridge_hub_westend_genesis(
 				.cloned()
 				.map(|k| (k, 1u128 << 60))
 				.collect::<Vec<_>>(),
+			..Default::default()
 		},
 		parachain_info: ParachainInfoConfig { parachain_id: id },
 		collator_selection: CollatorSelectionConfig {

cumulus/parachains/runtimes/collectives/collectives-westend/src/genesis_config_presets.rs

@@ -38,6 +38,7 @@ fn collectives_westend_genesis(
 				.cloned()
 				.map(|k| (k, COLLECTIVES_WESTEND_ED * 4096))
 				.collect::<Vec<_>>(),
+			..Default::default()
 		},
 		parachain_info: ParachainInfoConfig { parachain_id: id },
 		collator_selection: CollatorSelectionConfig {

cumulus/parachains/runtimes/test-utils/src/lib.rs

@@ -230,7 +230,7 @@ impl<Runtime: BasicParachainRuntime> ExtBuilder<Runtime> {
 			.unwrap();
 		}
 
-		pallet_balances::GenesisConfig::<Runtime> { balances: self.balances }
+		pallet_balances::GenesisConfig::<Runtime> { balances: self.balances, ..Default::default() }
 			.assimilate_storage(&mut t)
 			.unwrap();
 

polkadot/runtime/common/src/assigned_slots/mod.rs

@@ -773,6 +773,7 @@ mod tests {
 		let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
 		pallet_balances::GenesisConfig::<Test> {
 			balances: vec![(1, 10), (2, 20), (3, 30), (4, 40), (5, 50), (6, 60)],
+			..Default::default()
 		}
 		.assimilate_storage(&mut t)
 		.unwrap();

polkadot/runtime/common/src/auctions.rs

@@ -866,6 +866,7 @@ mod tests {
 		let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
 		pallet_balances::GenesisConfig::<Test> {
 			balances: vec![(1, 10), (2, 20), (3, 30), (4, 40), (5, 50), (6, 60)],
+			..Default::default()
 		}
 		.assimilate_storage(&mut t)
 		.unwrap();

polkadot/runtime/common/src/crowdloan/mod.rs

@@ -1085,6 +1085,7 @@ mod tests {
 		let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
 		pallet_balances::GenesisConfig::<Test> {
 			balances: vec![(1, 1000), (2, 2000), (3, 3000), (4, 4000)],
+			..Default::default()
 		}
 		.assimilate_storage(&mut t)
 		.unwrap();

polkadot/runtime/common/src/paras_registrar/mod.rs

@@ -869,6 +869,7 @@ mod tests {
 
 		pallet_balances::GenesisConfig::<Test> {
 			balances: vec![(1, 10_000_000), (2, 10_000_000), (3, 10_000_000)],
+			..Default::default()
 		}
 		.assimilate_storage(&mut t)
 		.unwrap();

polkadot/runtime/common/src/slots/mod.rs

@@ -578,6 +578,7 @@ mod tests {
 		let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
 		pallet_balances::GenesisConfig::<Test> {
 			balances: vec![(1, 10), (2, 20), (3, 30), (4, 40), (5, 50), (6, 60)],
+			..Default::default()
 		}
 		.assimilate_storage(&mut t)
 		.unwrap();

polkadot/runtime/rococo/src/genesis_config_presets.rs

@@ -167,6 +167,7 @@ fn rococo_testnet_genesis(
 	build_struct_json_patch!(RuntimeGenesisConfig {
 		balances: BalancesConfig {
 			balances: endowed_accounts.iter().map(|k| (k.clone(), ENDOWMENT)).collect::<Vec<_>>(),
+			..Default::default()
 		},
 		session: SessionConfig {
 			keys: initial_authorities
@@ -428,6 +429,7 @@ fn rococo_staging_testnet_config_genesis() -> serde_json::Value {
 				.map(|k: &AccountId| (k.clone(), ENDOWMENT))
 				.chain(initial_authorities.iter().map(|x| (x.0.clone(), STASH)))
 				.collect::<Vec<_>>(),
+			..Default::default()
 		},
 		session: SessionConfig {
 			keys: initial_authorities

polkadot/runtime/westend/src/genesis_config_presets.rs

@@ -174,6 +174,7 @@ fn westend_testnet_genesis(
 	build_struct_json_patch!(RuntimeGenesisConfig {
 		balances: BalancesConfig {
 			balances: endowed_accounts.iter().map(|k| (k.clone(), ENDOWMENT)).collect::<Vec<_>>(),
+			..Default::default()
 		},
 		session: SessionConfig {
 			keys: initial_authorities
@@ -345,6 +346,7 @@ fn westend_staging_testnet_config_genesis() -> serde_json::Value {
 				.map(|k: &AccountId| (k.clone(), ENDOWMENT))
 				.chain(initial_authorities.iter().map(|x| (x.0.clone(), STASH)))
 				.collect::<Vec<_>>(),
+			..Default::default()
 		},
 		session: SessionConfig {
 			keys: initial_authorities

polkadot/xcm/pallet-xcm/src/mock.rs

@@ -700,7 +700,7 @@ pub(crate) fn new_test_ext_with_balances_and_xcm_version(
 ) -> sp_io::TestExternalities {
 	let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
 
-	pallet_balances::GenesisConfig::<Test> { balances }
+	pallet_balances::GenesisConfig::<Test> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 

polkadot/xcm/xcm-builder/src/asset_exchange/single_asset_adapter/mock.rs

@@ -339,6 +339,7 @@ pub fn new_test_ext() -> sp_io::TestExternalities {
 
 	pallet_balances::GenesisConfig::<Runtime> {
 		balances: vec![(0, INITIAL_BALANCE), (1, INITIAL_BALANCE), (2, INITIAL_BALANCE)],
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();

polkadot/xcm/xcm-builder/tests/mock/mod.rs

@@ -243,7 +243,7 @@ construct_runtime!(
 pub fn kusama_like_with_balances(balances: Vec<(AccountId, Balance)>) -> sp_io::TestExternalities {
 	let mut t = frame_system::GenesisConfig::<Runtime>::default().build_storage().unwrap();
 
-	pallet_balances::GenesisConfig::<Runtime> { balances }
+	pallet_balances::GenesisConfig::<Runtime> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 

polkadot/xcm/xcm-runtime-apis/tests/mock.rs

@@ -364,7 +364,7 @@ impl pallet_xcm::Config for TestRuntime {
 pub fn new_test_ext_with_balances(balances: Vec<(AccountId, Balance)>) -> sp_io::TestExternalities {
 	let mut t = frame_system::GenesisConfig::<TestRuntime>::default().build_storage().unwrap();
 
-	pallet_balances::GenesisConfig::<TestRuntime> { balances }
+	pallet_balances::GenesisConfig::<TestRuntime> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 
@@ -380,7 +380,7 @@ pub fn new_test_ext_with_balances_and_assets(
 ) -> sp_io::TestExternalities {
 	let mut t = frame_system::GenesisConfig::<TestRuntime>::default().build_storage().unwrap();
 
-	pallet_balances::GenesisConfig::<TestRuntime> { balances }
+	pallet_balances::GenesisConfig::<TestRuntime> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 

polkadot/xcm/xcm-simulator/example/src/lib.rs

@@ -101,6 +101,7 @@ pub fn para_ext(para_id: u32) -> sp_io::TestExternalities {
 
 	pallet_balances::GenesisConfig::<Runtime> {
 		balances: vec![(ALICE, INITIAL_BALANCE), (parent_account_id(), INITIAL_BALANCE)],
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();
@@ -125,6 +126,7 @@ pub fn relay_ext() -> sp_io::TestExternalities {
 			(child_account_id(1), INITIAL_BALANCE),
 			(child_account_id(2), INITIAL_BALANCE),
 		],
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();

polkadot/xcm/xcm-simulator/fuzzer/src/fuzz.rs

@@ -117,6 +117,7 @@ pub fn para_ext(para_id: u32) -> sp_io::TestExternalities {
 
 	pallet_balances::GenesisConfig::<Runtime> {
 		balances: (0..6).map(|i| ([i; 32].into(), INITIAL_BALANCE)).collect(),
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();
@@ -138,7 +139,7 @@ pub fn relay_ext() -> sp_io::TestExternalities {
 	balances.append(&mut (1..=3).map(|i| (para_account_id(i), INITIAL_BALANCE)).collect());
 	balances.append(&mut (0..6).map(|i| ([i; 32].into(), INITIAL_BALANCE)).collect());
 
-	pallet_balances::GenesisConfig::<Runtime> { balances }
+	pallet_balances::GenesisConfig::<Runtime> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 

substrate/bin/node/testing/src/genesis.rs

@@ -47,7 +47,7 @@ pub fn config_endowed(extra_endowed: Vec<AccountId>) -> RuntimeGenesisConfig {
 
 	RuntimeGenesisConfig {
 		indices: IndicesConfig { indices: vec![] },
-		balances: BalancesConfig { balances: endowed },
+		balances: BalancesConfig { balances: endowed, ..Default::default() },
 		session: SessionConfig {
 			keys: vec![
 				(alice(), dave(), session_keys_from_seed(Ed25519Keyring::Alice.into())),

substrate/frame/alliance/src/mock.rs

@@ -283,6 +283,7 @@ pub fn new_test_ext() -> sp_io::TestExternalities {
 			(8, 1000),
 			(9, 1000),
 		],
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();

substrate/frame/asset-conversion/ops/src/mock.rs

@@ -135,6 +135,7 @@ pub(crate) fn new_test_ext() -> sp_io::TestExternalities {
 
 	pallet_balances::GenesisConfig::<Test> {
 		balances: vec![(1, 10000), (2, 20000), (3, 30000), (4, 40000)],
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();

substrate/frame/asset-conversion/src/mock.rs

@@ -162,6 +162,7 @@ pub(crate) fn new_test_ext() -> sp_io::TestExternalities {
 
 	pallet_balances::GenesisConfig::<Test> {
 		balances: vec![(1, 10000), (2, 20000), (3, 30000), (4, 40000)],
+		..Default::default()
 	}
 	.assimilate_storage(&mut t)
 	.unwrap();

substrate/frame/babe/src/mock.rs

@@ -313,7 +313,7 @@ pub fn new_test_ext_raw_authorities(authorities: Vec<AuthorityId>) -> sp_io::Tes
 
 	let balances: Vec<_> = (0..authorities.len()).map(|i| (i as u64, 10_000_000)).collect();
 
-	pallet_balances::GenesisConfig::<Test> { balances }
+	pallet_balances::GenesisConfig::<Test> { balances, ..Default::default() }
 		.assimilate_storage(&mut t)
 		.unwrap();
 

substrate/frame/balances/Cargo.toml

@@ -24,11 +24,11 @@ frame-support = { workspace = true }
 frame-system = { workspace = true }
 sp-runtime = { workspace = true }
 docify = { workspace = true }
+sp-core = { workspace = true }
 
 [dev-dependencies]
 pallet-transaction-payment = { workspace = true, default-features = true }
 frame-support = { features = ["experimental"], workspace = true, default-features = true }
-sp-core = { workspace = true, default-features = true }
 sp-io = { workspace = true, default-features = true }
 paste = { workspace = true, default-features = true }
 

substrate/frame/balances/src/lib.rs

@@ -180,6 +180,10 @@ use sp_runtime::{
 	},
 	ArithmeticError, DispatchError, FixedPointOperand, Perbill, RuntimeDebug, TokenError,
 };
+
+#[cfg(feature = "runtime-benchmarks")]
+use sp_core::{sr25519::Pair as SrPair, Pair};
+
 pub use types::{
 	AccountData, AdjustmentDirection, BalanceLock, DustCleaner, ExtraFlags, Reasons, ReserveData,
 };
@@ -505,11 +509,19 @@ pub mod pallet {
 	#[pallet::genesis_config]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		pub balances: Vec<(T::AccountId, T::Balance)>,
+
+		#[cfg(feature = "runtime-benchmarks")]
+		pub dev_accounts: (u32, T::Balance, String),
 	}
 
 	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
 		fn default() -> Self {
-			Self { balances: Default::default() }
+			Self { 
+				balances: Default::default(),
+
+				#[cfg(feature = "runtime-benchmarks")]
+            	dev_accounts: (Default::default(), Default::default(), String::new()),
+			}
 		}
 	}
 
@@ -540,6 +552,34 @@ pub mod pallet {
 				"duplicate balances in genesis."
 			);
 
+			// Generate additional dev accounts.
+			#[cfg(feature = "runtime-benchmarks")]
+			{
+				let (num_accounts, balance, ref derivation) = self.dev_accounts;
+				for index in 0..num_accounts {
+					assert!(
+						balance >= <T as Config<I>>::ExistentialDeposit::get(),
+						"the balance of any account should always be at least the existential deposit.",
+					);
+					// Check if the derivation string follows the pattern "//character/{}"
+    				assert!(
+        				derivation.starts_with("//") && 
+        				derivation[2..].contains('/') && // There should be a character after "//" and before "{}"
+        				derivation.ends_with("{}"),
+        				"Invalid derivation string"
+    				);
+					// Create key pair from the derivation string
+					let derivation_string = &derivation.replace("{}", &index.to_string());
+					let pair: SrPair = Pair::from_string(&derivation_string, None).expect("Invalid derivation string");
+
+					// Convert the public key to AccountId
+					let who = T::AccountId::decode(&mut &pair.public().encode()[..]).unwrap();
+					frame_system::Pallet::<T>::inc_providers(&who);
+					assert!(T::AccountStore::insert(&who, AccountData { free: balance, ..Default::default() })
+						.is_ok());
+				}
+			}
+
 			for &(ref who, free) in self.balances.iter() {
 				frame_system::Pallet::<T>::inc_providers(who);
 				assert!(T::AccountStore::insert(who, AccountData { free, ..Default::default() })

substrate/frame/balances/src/tests/currency_tests.rs

@@ -717,7 +717,10 @@ fn burn_must_work() {
 fn cannot_set_genesis_value_below_ed() {
 	EXISTENTIAL_DEPOSIT.with(|v| *v.borrow_mut() = 11);
 	let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
-	let _ = crate::GenesisConfig::<Test> { balances: vec![(1, 10)] }
+	let _ = crate::GenesisConfig::<Test> { 
+		balances: vec![(1, 10)],
+		..Default::default()
+	}
 		.assimilate_storage(&mut t)
 		.unwrap();
 }
@@ -726,7 +729,10 @@ fn cannot_set_genesis_value_below_ed() {
 #[should_panic = "duplicate balances in genesis."]
 fn cannot_set_genesis_value_twice() {
 	let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
-	let _ = crate::GenesisConfig::<Test> { balances: vec![(1, 10), (2, 20), (1, 15)] }
+	let _ = crate::GenesisConfig::<Test> { 
+		balances: vec![(1, 10), (2, 20), (1, 15)],
+		..Default::default()
+	}
 		.assimilate_storage(&mut t)
 		.unwrap();
 }