feat: pallet asset-rate (#13608)

* poc * fix: remove AssetIdParameter * tests: add * docs: add pallet description * feat: add benches * refactor: UnknownAssetId * fix: normalize mock cfg * fix: benchmarks * chore: add weights * refactor: remove storage getter * chore: apply suggestions from code review * docs: add native balance to calls * chore: apply suggestions from code review * chore: apply ConversionFromAssetBalance * tests: update balance mock * chore: apply suggestions from code review * ci: set publish to false * docs: fix missing rustdoc --------- Co-authored-by: parity-processbot <>
2026-06-14 13:21:10 +00:00 · 2023-04-19 09:49:42 +02:00
parent cbc8e5f7df
commit 9eb63f216c
10 changed files with 762 additions and 0 deletions
@@ -0,0 +1,121 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! The crate's tests.
+
+use super::*;
+use crate::pallet as pallet_asset_rate;
+use frame_support::{assert_noop, assert_ok};
+use mock::{new_test_ext, AssetRate, RuntimeOrigin, Test};
+use sp_runtime::FixedU128;
+
+const ASSET_ID: u32 = 42;
+
+#[test]
+fn create_works() {
+	new_test_ext().execute_with(|| {
+		assert!(pallet_asset_rate::ConversionRateToNative::<Test>::get(ASSET_ID).is_none());
+		assert_ok!(AssetRate::create(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.1)));
+
+		assert_eq!(
+			pallet_asset_rate::ConversionRateToNative::<Test>::get(ASSET_ID),
+			Some(FixedU128::from_float(0.1))
+		);
+	});
+}
+
+#[test]
+fn create_existing_throws() {
+	new_test_ext().execute_with(|| {
+		assert!(pallet_asset_rate::ConversionRateToNative::<Test>::get(ASSET_ID).is_none());
+		assert_ok!(AssetRate::create(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.1)));
+
+		assert_noop!(
+			AssetRate::create(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.1)),
+			Error::<Test>::AlreadyExists
+		);
+	});
+}
+
+#[test]
+fn remove_works() {
+	new_test_ext().execute_with(|| {
+		assert_ok!(AssetRate::create(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.1)));
+
+		assert_ok!(AssetRate::remove(RuntimeOrigin::root(), ASSET_ID,));
+		assert!(pallet_asset_rate::ConversionRateToNative::<Test>::get(ASSET_ID).is_none());
+	});
+}
+
+#[test]
+fn remove_unknown_throws() {
+	new_test_ext().execute_with(|| {
+		assert_noop!(
+			AssetRate::remove(RuntimeOrigin::root(), ASSET_ID,),
+			Error::<Test>::UnknownAssetId
+		);
+	});
+}
+
+#[test]
+fn update_works() {
+	new_test_ext().execute_with(|| {
+		assert_ok!(AssetRate::create(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.1)));
+		assert_ok!(AssetRate::update(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.5)));
+
+		assert_eq!(
+			pallet_asset_rate::ConversionRateToNative::<Test>::get(ASSET_ID),
+			Some(FixedU128::from_float(0.5))
+		);
+	});
+}
+
+#[test]
+fn update_unknown_throws() {
+	new_test_ext().execute_with(|| {
+		assert_noop!(
+			AssetRate::update(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(0.5)),
+			Error::<Test>::UnknownAssetId
+		);
+	});
+}
+
+#[test]
+fn convert_works() {
+	new_test_ext().execute_with(|| {
+		assert_ok!(AssetRate::create(RuntimeOrigin::root(), ASSET_ID, FixedU128::from_float(2.51)));
+
+		let conversion = <AssetRate as ConversionFromAssetBalance<
+			BalanceOf<Test>,
+			<Test as pallet_asset_rate::Config>::AssetId,
+			BalanceOf<Test>,
+		>>::from_asset_balance(10, ASSET_ID);
+		assert_eq!(conversion.expect("Conversion rate exists for asset"), 25);
+	});
+}
+
+#[test]
+fn convert_unknown_throws() {
+	new_test_ext().execute_with(|| {
+		let conversion = <AssetRate as ConversionFromAssetBalance<
+			BalanceOf<Test>,
+			<Test as pallet_asset_rate::Config>::AssetId,
+			BalanceOf<Test>,
+		>>::from_asset_balance(10, ASSET_ID);
+		assert!(conversion.is_err());
+	});
+}