feat: allow different assets for delivery fees

cumulus/parachains/integration-tests/emulated/chains/parachains/assets/asset-hub-westend/src/genesis.rs

@@ -21,12 +21,13 @@ use sp_core::{sr25519, storage::Storage};
 use emulated_integration_tests_common::{
 	accounts, build_genesis_storage, collators, get_account_id_from_seed,
 	PenpalSiblingSovereignAccount, PenpalTeleportableAssetLocation, RESERVABLE_ASSET_ID,
-	SAFE_XCM_VERSION,
+	SAFE_XCM_VERSION, USDT_ID,
 };
 use parachains_common::{AccountId, Balance};
 
 pub const PARA_ID: u32 = 1000;
 pub const ED: Balance = testnet_parachains_constants::westend::currency::EXISTENTIAL_DEPOSIT;
+pub const USDT_ED: Balance = 70_000;
 
 parameter_types! {
 	pub AssetHubWestendAssetOwner: AccountId = get_account_id_from_seed::<sr25519::Public>("Alice");
@@ -64,7 +65,10 @@ pub fn genesis() -> Storage {
 			..Default::default()
 		},
 		assets: asset_hub_westend_runtime::AssetsConfig {
-			assets: vec![(RESERVABLE_ASSET_ID, AssetHubWestendAssetOwner::get(), true, ED)],
+			assets: vec![
+				(RESERVABLE_ASSET_ID, AssetHubWestendAssetOwner::get(), true, ED),
+				(USDT_ID, AssetHubWestendAssetOwner::get(), true, USDT_ED),
+			],
 			..Default::default()
 		},
 		foreign_assets: asset_hub_westend_runtime::ForeignAssetsConfig {

cumulus/parachains/integration-tests/emulated/chains/parachains/testing/penpal/src/genesis.rs

@@ -22,11 +22,12 @@ use emulated_integration_tests_common::{
 	accounts, build_genesis_storage, collators, get_account_id_from_seed, SAFE_XCM_VERSION,
 };
 use parachains_common::{AccountId, Balance};
-use penpal_runtime::xcm_config::{LocalReservableFromAssetHub, RelayLocation};
+use penpal_runtime::xcm_config::{LocalReservableFromAssetHub, RelayLocation, UsdtFromAssetHub};
 // Penpal
 pub const PARA_ID_A: u32 = 2000;
 pub const PARA_ID_B: u32 = 2001;
 pub const ED: Balance = penpal_runtime::EXISTENTIAL_DEPOSIT;
+pub const USDT_ED: Balance = 70_000;
 
 parameter_types! {
 	pub PenpalSudoAccount: AccountId = get_account_id_from_seed::<sr25519::Public>("Alice");
@@ -80,6 +81,8 @@ pub fn genesis(para_id: u32) -> Storage {
 				(RelayLocation::get(), PenpalAssetOwner::get(), true, ED),
 				// Sufficient AssetHub asset representation
 				(LocalReservableFromAssetHub::get(), PenpalAssetOwner::get(), true, ED),
+				// USDT from AssetHub
+				(UsdtFromAssetHub::get(), PenpalAssetOwner::get(), true, USDT_ED),
 			],
 			..Default::default()
 		},

cumulus/parachains/integration-tests/emulated/chains/parachains/testing/penpal/src/lib.rs

@@ -53,6 +53,7 @@ decl_test_parachains! {
 			PolkadotXcm: penpal_runtime::PolkadotXcm,
 			Assets: penpal_runtime::Assets,
 			ForeignAssets: penpal_runtime::ForeignAssets,
+			AssetConversion: penpal_runtime::AssetConversion,
 			Balances: penpal_runtime::Balances,
 		}
 	},
@@ -76,6 +77,7 @@ decl_test_parachains! {
 			PolkadotXcm: penpal_runtime::PolkadotXcm,
 			Assets: penpal_runtime::Assets,
 			ForeignAssets: penpal_runtime::ForeignAssets,
+			AssetConversion: penpal_runtime::AssetConversion,
 			Balances: penpal_runtime::Balances,
 		}
 	},

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/lib.rs

@@ -63,6 +63,7 @@ mod imports {
 				CustomizableAssetFromSystemAssetHub as PenpalCustomizableAssetFromSystemAssetHub,
 				LocalReservableFromAssetHub as PenpalLocalReservableFromAssetHub,
 				LocalTeleportableToAssetHub as PenpalLocalTeleportableToAssetHub,
+				UsdtFromAssetHub as PenpalUsdtFromAssetHub,
 			},
 			PenpalAParaPallet as PenpalAPallet, PenpalAssetOwner,
 			PenpalBParaPallet as PenpalBPallet,

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/fellowship_treasury.rs

@@ -15,13 +15,13 @@
 
 use crate::imports::*;
 use emulated_integration_tests_common::accounts::{ALICE, BOB};
-use frame_support::traits::fungibles::{Create, Inspect, Mutate};
+use frame_support::traits::fungibles::{Inspect, Mutate};
 use polkadot_runtime_common::impls::VersionedLocatableAsset;
 use xcm_executor::traits::ConvertLocation;
 
 #[test]
 fn create_and_claim_treasury_spend() {
-	const ASSET_ID: u32 = 1984;
+	const ASSET_ID: u32 = 1984; // USDT already created at genesis.
 	const SPEND_AMOUNT: u128 = 1_000_000;
 	// treasury location from a sibling parachain.
 	let treasury_location: Location =
@@ -44,13 +44,7 @@ fn create_and_claim_treasury_spend() {
 	AssetHubWestend::execute_with(|| {
 		type Assets = <AssetHubWestend as AssetHubWestendPallet>::Assets;
 
-		// create an asset class and mint some assets to the treasury account.
-		assert_ok!(<Assets as Create<_>>::create(
-			ASSET_ID,
-			treasury_account.clone(),
-			true,
-			SPEND_AMOUNT / 2
-		));
+		// USDT already created at genesis.
 		assert_ok!(<Assets as Mutate<_>>::mint_into(ASSET_ID, &treasury_account, SPEND_AMOUNT * 4));
 		// beneficiary has zero balance.
 		assert_eq!(<Assets as Inspect<_>>::balance(ASSET_ID, &alice,), 0u128,);

cumulus/parachains/integration-tests/emulated/tests/assets/asset-hub-westend/src/tests/hybrid_transfers.rs

@@ -613,10 +613,10 @@ fn transfer_foreign_assets_from_para_to_para_through_asset_hub() {
 		<ForeignAssets as Inspect<_>>::balance(roc_at_westend_parachains, &receiver)
 	});
 
-	// Sender's balance is reduced by amount sent plus delivery fees
+	// Sender's balance is reduced by amount sent.
 	assert!(sender_wnds_after < sender_wnds_before - wnd_to_send);
 	assert_eq!(sender_rocs_after, sender_rocs_before - roc_to_send);
-	// Sovereign accounts on reserve are changed accordingly
+	// Sovereign accounts on reserve are changed accordingly.
 	assert_eq!(
 		wnds_in_sender_reserve_on_ah_after,
 		wnds_in_sender_reserve_on_ah_before - wnd_to_send
@@ -630,7 +630,7 @@ fn transfer_foreign_assets_from_para_to_para_through_asset_hub() {
 		rocs_in_receiver_reserve_on_ah_after,
 		rocs_in_receiver_reserve_on_ah_before + roc_to_send
 	);
-	// Receiver's balance is increased
+	// Receiver's balance is increased by amount sent minus delivery fees.
 	assert!(receiver_wnds_after > receiver_wnds_before);
 	assert_eq!(receiver_rocs_after, receiver_rocs_before + roc_to_send);
 }