Removed TODO from test-case for hard-coded delivery fee estimation (#2042)

Co-authored-by: Adrian Catangiu <[email protected]>

Author: bkontur

cumulus/parachains/runtimes/assets/asset-hub-rococo/tests/tests.rs

@@ -768,29 +768,11 @@ mod asset_hub_rococo_tests {
 			Runtime,
 			AllPalletsWithoutSystem,
 			XcmConfig,
-			ParachainSystem,
-			XcmpQueue,
 			LocationToAccountId,
 			ToWococoXcmRouterInstance,
 		>(
 			collator_session_keys(),
-			ExistentialDeposit::get(),
-			AccountId::from(ALICE),
-			Box::new(|runtime_event_encoded: Vec<u8>| {
-				match RuntimeEvent::decode(&mut &runtime_event_encoded[..]) {
-					Ok(RuntimeEvent::PolkadotXcm(event)) => Some(event),
-					_ => None,
-				}
-			}),
-			Box::new(|runtime_event_encoded: Vec<u8>| {
-				match RuntimeEvent::decode(&mut &runtime_event_encoded[..]) {
-					Ok(RuntimeEvent::XcmpQueue(event)) => Some(event),
-					_ => None,
-				}
-			}),
 			bridging_to_asset_hub_wococo,
-			WeightLimit::Unlimited,
-			Some(xcm_config::bridging::XcmBridgeHubRouterFeeAssetId::get()),
 			|| {
 				sp_std::vec![
 					UnpaidExecution { weight_limit: Unlimited, check_origin: None },
@@ -1028,29 +1010,11 @@ mod asset_hub_wococo_tests {
 			Runtime,
 			AllPalletsWithoutSystem,
 			XcmConfig,
-			ParachainSystem,
-			XcmpQueue,
 			LocationToAccountId,
 			ToRococoXcmRouterInstance,
 		>(
 			collator_session_keys(),
-			ExistentialDeposit::get(),
-			AccountId::from(ALICE),
-			Box::new(|runtime_event_encoded: Vec<u8>| {
-				match RuntimeEvent::decode(&mut &runtime_event_encoded[..]) {
-					Ok(RuntimeEvent::PolkadotXcm(event)) => Some(event),
-					_ => None,
-				}
-			}),
-			Box::new(|runtime_event_encoded: Vec<u8>| {
-				match RuntimeEvent::decode(&mut &runtime_event_encoded[..]) {
-					Ok(RuntimeEvent::XcmpQueue(event)) => Some(event),
-					_ => None,
-				}
-			}),
 			with_wococo_flavor_bridging_to_asset_hub_rococo,
-			WeightLimit::Unlimited,
-			Some(xcm_config::bridging::XcmBridgeHubRouterFeeAssetId::get()),
 			|| {
 				sp_std::vec![
 					UnpaidExecution { weight_limit: Unlimited, check_origin: None },

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

@@ -19,4 +19,48 @@
 pub mod test_cases;
 pub mod test_cases_over_bridge;
 pub mod xcm_helpers;
+
+use frame_support::traits::ProcessMessageError;
 pub use parachains_runtimes_test_utils::*;
+use std::fmt::Debug;
+
+use xcm::latest::prelude::*;
+use xcm_builder::{CreateMatcher, MatchXcm};
+
+/// Helper function to verify `xcm` contains all relevant instructions expected on destination
+/// chain as part of a reserve-asset-transfer.
+pub(crate) fn assert_matches_reserve_asset_deposited_instructions<RuntimeCall: Debug>(
+	xcm: &mut Xcm<RuntimeCall>,
+	expected_reserve_assets_deposited: &MultiAssets,
+	expected_beneficiary: &MultiLocation,
+) {
+	let _ = xcm
+		.0
+		.matcher()
+		.skip_inst_while(|inst| !matches!(inst, ReserveAssetDeposited(..)))
+		.expect("no instruction ReserveAssetDeposited?")
+		.match_next_inst(|instr| match instr {
+			ReserveAssetDeposited(reserve_assets) => {
+				assert_eq!(reserve_assets, expected_reserve_assets_deposited);
+				Ok(())
+			},
+			_ => Err(ProcessMessageError::BadFormat),
+		})
+		.expect("expected instruction ReserveAssetDeposited")
+		.match_next_inst(|instr| match instr {
+			ClearOrigin => Ok(()),
+			_ => Err(ProcessMessageError::BadFormat),
+		})
+		.expect("expected instruction ClearOrigin")
+		.match_next_inst(|instr| match instr {
+			BuyExecution { .. } => Ok(()),
+			_ => Err(ProcessMessageError::BadFormat),
+		})
+		.expect("expected instruction BuyExecution")
+		.match_next_inst(|instr| match instr {
+			DepositAsset { assets: _, beneficiary } if beneficiary == expected_beneficiary =>
+				Ok(()),
+			_ => Err(ProcessMessageError::BadFormat),
+		})
+		.expect("expected instruction DepositAsset");
+}