fix: adjust router for insufficient asset

integration-tests/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "runtime-integration-tests"
-version = "1.18.1"
+version = "1.18.2"
 description = "Integration tests"
 authors = ["GalacticCouncil"]
 edition = "2021"

integration-tests/src/router.rs

@@ -707,6 +707,9 @@ mod router_different_pools_tests {
 
 mod omnipool_router_tests {
 	use super::*;
+	use frame_support::assert_noop;
+	use hydradx_traits::router::PoolType;
+	use hydradx_traits::AssetKind;
 
 	#[test]
 	fn sell_should_work_when_route_contains_single_trade() {
@@ -750,6 +753,213 @@ mod omnipool_router_tests {
 		});
 	}
 
+	#[test]
+	fn sell_should_work_when_user_has_left_less_than_existential_in_nonnative() {
+		TestNet::reset();
+
+		Hydra::execute_with(|| {
+			let _ = with_transaction(|| {
+				//Arrange
+				let (pool_id, stable_asset_1, _) = init_stableswap().unwrap();
+
+				init_omnipool();
+
+				let init_balance = 3000 * UNITS + 1;
+				assert_ok!(Currencies::update_balance(
+					hydradx_runtime::RuntimeOrigin::root(),
+					ALICE.into(),
+					stable_asset_1,
+					init_balance as i128,
+				));
+
+				let trades = vec![Trade {
+					pool: PoolType::Stableswap(pool_id),
+					asset_in: stable_asset_1,
+					asset_out: pool_id,
+				}];
+
+				assert_balance!(ALICE.into(), pool_id, 0);
+
+				//Act
+				let amount_to_sell = 3000 * UNITS;
+				assert_ok!(Router::sell(
+					hydradx_runtime::RuntimeOrigin::signed(ALICE.into()),
+					stable_asset_1,
+					pool_id,
+					amount_to_sell,
+					0,
+					trades
+				));
+
+				//Assert
+				assert_eq!(
+					hydradx_runtime::Currencies::free_balance(stable_asset_1, &AccountId::from(ALICE)),
+					0
+				);
+
+				TransactionOutcome::Commit(DispatchResult::Ok(()))
+			});
+		});
+	}
+
+	#[test]
+	fn sell_should_fail_when_all_asset_in_spent_for_shitcoin() {
+		TestNet::reset();
+
+		Hydra::execute_with(|| {
+			let _ = with_transaction(|| {
+				//Arrange
+				let name = b"SHITCO".to_vec();
+				let shitcoin = AssetRegistry::register_insufficient_asset(
+					None,
+					Some(name.try_into().unwrap()),
+					AssetKind::External,
+					Some(1_000),
+					None,
+					None,
+					None,
+					None,
+				)
+				.unwrap();
+				assert_ok!(Currencies::deposit(shitcoin, &DAVE.into(), 100000 * UNITS,));
+				assert_ok!(Currencies::update_balance(
+					hydradx_runtime::RuntimeOrigin::root(),
+					DAVE.into(),
+					HDX,
+					100000 * UNITS as i128,
+				));
+
+				assert_ok!(XYK::create_pool(
+					RuntimeOrigin::signed(DAVE.into()),
+					HDX,
+					100000 * UNITS,
+					shitcoin,
+					100000 * UNITS,
+				));
+
+				let trades = vec![Trade {
+					pool: PoolType::XYK,
+					asset_in: HDX,
+					asset_out: shitcoin,
+				}];
+
+				//Act
+				let amount_to_sell = ALICE_INITIAL_NATIVE_BALANCE;
+				assert_noop!(
+					Router::sell(
+						hydradx_runtime::RuntimeOrigin::signed(ALICE.into()),
+						HDX,
+						shitcoin,
+						amount_to_sell,
+						0,
+						trades
+					),
+					orml_tokens::Error::<Runtime>::ExistentialDeposit
+				);
+
+				TransactionOutcome::Commit(DispatchResult::Ok(()))
+			});
+		});
+	}
+
+	#[test]
+	fn sell_should_pass_when_user_has_asset_in_covering_the_fee_for_shitcoin() {
+		TestNet::reset();
+
+		Hydra::execute_with(|| {
+			let _ = with_transaction(|| {
+				//Arrange
+				let name = b"SHITCO".to_vec();
+				let shitcoin = AssetRegistry::register_insufficient_asset(
+					None,
+					Some(name.try_into().unwrap()),
+					AssetKind::External,
+					Some(1_000),
+					None,
+					None,
+					None,
+					None,
+				)
+				.unwrap();
+
+				assert_ok!(Currencies::deposit(shitcoin, &DAVE.into(), 100000 * UNITS,));
+				assert_ok!(Currencies::update_balance(
+					hydradx_runtime::RuntimeOrigin::root(),
+					DAVE.into(),
+					HDX,
+					100000 * UNITS as i128,
+				));
+
+				assert_ok!(XYK::create_pool(
+					RuntimeOrigin::signed(DAVE.into()),
+					HDX,
+					100000 * UNITS,
+					shitcoin,
+					100000 * UNITS,
+				));
+
+				let trades = vec![Trade {
+					pool: PoolType::XYK,
+					asset_in: HDX,
+					asset_out: shitcoin,
+				}];
+
+				//Act
+				let amount_to_sell = ALICE_INITIAL_NATIVE_BALANCE - 20 * UNITS;
+				assert_ok!(Router::sell(
+					hydradx_runtime::RuntimeOrigin::signed(ALICE.into()),
+					HDX,
+					shitcoin,
+					amount_to_sell,
+					0,
+					trades
+				));
+
+				TransactionOutcome::Commit(DispatchResult::Ok(()))
+			});
+		});
+	}
+
+	#[test]
+	fn sell_should_work_when_user_has_left_less_than_existential_in_native() {
+		TestNet::reset();
+
+		Hydra::execute_with(|| {
+			//Arrange
+			init_omnipool();
+
+			assert_ok!(Currencies::update_balance(
+				hydradx_runtime::RuntimeOrigin::root(),
+				ALICE.into(),
+				HDX,
+				1_i128,
+			));
+
+			let trades = vec![Trade {
+				pool: PoolType::Omnipool,
+				asset_in: HDX,
+				asset_out: DAI,
+			}];
+
+			//Act and assert
+			let amount_to_sell = ALICE_INITIAL_NATIVE_BALANCE;
+			assert_ok!(Router::sell(
+				hydradx_runtime::RuntimeOrigin::signed(ALICE.into()),
+				HDX,
+				DAI,
+				amount_to_sell,
+				0,
+				trades
+			));
+
+			//Assert
+			assert_eq!(
+				hydradx_runtime::Currencies::free_balance(HDX, &AccountId::from(ALICE)),
+				0
+			);
+		});
+	}
+
 	#[test]
 	fn sell_hub_asset_should_work_when_route_contains_single_trade() {
 		TestNet::reset();
@@ -910,6 +1120,38 @@ mod omnipool_router_tests {
 		});
 	}
 
+	#[test]
+	fn buy_should_work_when_after_trade_reamining_balance_is_less_than_existential_deposit() {
+		TestNet::reset();
+
+		Hydra::execute_with(|| {
+			//Arrange
+			init_omnipool();
+
+			let amount_to_buy = 26559360000000000000u128;
+
+			let limit = ALICE_INITIAL_NATIVE_BALANCE;
+			let trades = vec![Trade {
+				pool: PoolType::Omnipool,
+				asset_in: HDX,
+				asset_out: DAI,
+			}];
+
+			//Act
+			assert_ok!(Router::buy(
+				RuntimeOrigin::signed(BOB.into()),
+				HDX,
+				DAI,
+				amount_to_buy,
+				limit,
+				trades
+			));
+
+			//Assert
+			assert_balance!(BOB.into(), DAI, BOB_INITIAL_DAI_BALANCE + amount_to_buy);
+		});
+	}
+
 	#[test]
 	fn buy_hub_asset_should_not_work() {
 		TestNet::reset();
@@ -3424,7 +3666,7 @@ pub fn init_stableswap_with_liquidity(
 			None,
 			Some(name.try_into().unwrap()),
 			AssetKind::Token,
-			1u128,
+			1000u128,
 			Some(b"xDUM".to_vec().try_into().unwrap()),
 			Some(18u8),
 			None,

pallets/asset-registry/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pallet-asset-registry"
-version = "3.0.0"
+version = "3.0.1"
 description = "Pallet for asset registry management"
 authors = ["GalacticCouncil"]
 edition = "2021"

pallets/dca/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = 'pallet-dca'
-version = "1.3.4"
+version = "1.3.5"
 description = 'A pallet to manage DCA scheduling'
 authors = ['GalacticCouncil']
 edition = '2021'

pallets/dca/src/tests/mock.rs

@@ -349,13 +349,49 @@ parameter_types! {
 
 type Pools = (OmniPool, Xyk);
 
+pub struct MockedAssetRegistry;
+
+impl hydradx_traits::registry::Inspect for MockedAssetRegistry {
+	type AssetId = AssetId;
+	type Location = ();
+
+	fn is_sufficient(_id: Self::AssetId) -> bool {
+		unimplemented!()
+	}
+
+	fn exists(_id: Self::AssetId) -> bool {
+		unimplemented!()
+	}
+
+	fn decimals(_id: Self::AssetId) -> Option<u8> {
+		unimplemented!()
+	}
+
+	fn asset_type(_id: Self::AssetId) -> Option<AssetKind> {
+		unimplemented!()
+	}
+
+	fn is_banned(_id: Self::AssetId) -> bool {
+		unimplemented!()
+	}
+
+	fn asset_name(_id: Self::AssetId) -> Option<Vec<u8>> {
+		unimplemented!()
+	}
+
+	fn asset_symbol(_id: Self::AssetId) -> Option<Vec<u8>> {
+		unimplemented!()
+	}
+}
+
 impl pallet_route_executor::Config for Test {
 	type RuntimeEvent = RuntimeEvent;
 	type AssetId = AssetId;
 	type Balance = Balance;
 	type NativeAssetId = NativeCurrencyId;
 	type Currency = FungibleCurrencies<Test>;
 	type AMM = Pools;
+	type InspectRegistry = MockedAssetRegistry;
 	type DefaultRoutePoolType = DefaultRoutePoolType;
 	type WeightInfo = ();
 }

pallets/route-executor/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = 'pallet-route-executor'
-version = '2.0.1'
+version = '2.0.2'
 description = 'A pallet to execute a route containing a sequence of trades'
 authors = ['GalacticCouncil']
 edition = '2021'