feat: duster pallet

Cargo.toml

@@ -128,6 +128,7 @@ members = [
   # 'pallets/proposal', Update this
   'node',
   'pallets/nft',
+  'pallets/duster',
   'runtime',
   'pallets/xyk',
   'pallets/exchange',

pallets/duster/Cargo.toml

@@ -0,0 +1,69 @@
+[package]
+authors = ['GalacticCouncil']
+description = 'Account duster'
+edition = '2018'
+homepage = '/~https://github.com/galacticcouncil/Basilisk-node'
+license = 'Apache 2.0'
+name = 'pallet-duster'
+repository = '/~https://github.com/galacticcouncil/Basilisk-node'
+version = '1.0.0'
+
+[package.metadata.docs.rs]
+targets = ['x86_64-unknown-linux-gnu']
+
+[build-dependencies]
+substrate-wasm-builder = {package = 'substrate-wasm-builder', version = '3.0.0'}
+
+# alias "parity-scale-code" to "codec"
+[dependencies.codec]
+default-features = false
+features = ['derive']
+package = 'parity-scale-codec'
+version = '2.0.0'
+
+[dependencies]
+serde = {features = ['derive'], optional = true, version = '1.0.101'}
+
+# ORML dependencies
+orml-traits = {default-features = false, version = "0.4.1-dev"}
+
+# Substrate dependencies
+sp-std = {default-features = false, version = '3.0.0'}
+frame-support = {default-features = false, version = '3.0.0'}
+frame-system = {default-features = false, version = '3.0.0'}
+
+# Optionals
+frame-system-benchmarking = {default-features = false, optional = true, version = '3.0.0'}
+frame-benchmarking = {default-features = false, optional = true, version = '3.0.0'}
+
+[dev-dependencies]
+sp-io = {default-features = false, version = '3.0.0'}
+orml-currencies = {default-features = false, version = "0.4.1-dev"}
+orml-tokens = {default-features = false, version = "0.4.1-dev"}
+primitives = {path = '../../primitives', default-features = false}
+lazy_static = {features = ['spin_no_std'], version = "1.4.0"}
+sp-core = {default-features = false, version = '3.0.0'}
+sp-runtime = {default-features = false, version = '3.0.0'}
+pallet-balances = {default-features = false, version = '3.0.0'}
+
+[features]
+default = ['std']
+runtime-benchmarks = [
+  "frame-benchmarking",
+  "frame-system/runtime-benchmarks",
+  "frame-support/runtime-benchmarks",
+]
+std = [
+  'serde',
+  'codec/std',
+  'frame-support/std',
+  'frame-system/std',
+  'sp-runtime/std',
+  'sp-core/std',
+  'sp-std/std',
+  'orml-tokens/std',
+  'orml-traits/std',
+  'primitives/std',
+  'lazy_static/spin_no_std',
+  'pallet-balances/default',
+]

pallets/duster/src/benchmarking.rs

@@ -0,0 +1,66 @@
+// This file is part of HydraDX.
+
+// Copyright (C) 2020-2021  Intergalactic, Limited (GIB).
+// 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.
+
+#![cfg(feature = "runtime-benchmarks")]
+
+use super::*;
+
+use frame_benchmarking::{account, benchmarks};
+use frame_system::RawOrigin;
+
+const SEED: u32 = 1;
+
+fn funded_account<T: Config>(name: &'static str, index: u32) -> T::AccountId
+where
+	<T as pallet::Config>::CurrencyId: From<u32>,
+{
+	let caller: T::AccountId = account(name, index, SEED);
+	caller
+}
+
+benchmarks! {
+	dust_account{
+		let caller = funded_account::<T>("caller", 0);
+		let to_dust_account = funded_account::<T>("dust", 0);
+
+		let dust_amount : T::Amount = 1_000u32.into();
+
+		T::MultiCurrency::update_balance(1u32.into(), &to_dust_account, dust_amount).unwrap();
+		assert_eq!(T::MultiCurrency::free_balance(1u32.into(), &to_dust_account), 1000u32.into());
+
+	}: _(RawOrigin::Signed(caller.clone()), to_dust_account.clone(),1u32.into())
+	verify {
+		assert_eq!(T::MultiCurrency::free_balance(1u32.into(), &to_dust_account), 0u32.into());
+		assert_eq!(T::MultiCurrency::free_balance(0u32.into(), &caller), 10_000u32.into());
+		assert_eq!(T::MultiCurrency::free_balance(1u32.into(), &T::DustAccount::get()), 1000u32.into());
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use super::mock::Test;
+	use super::*;
+	use crate::mock::ExtBuilder;
+	use frame_support::assert_ok;
+
+	#[test]
+	fn test_benchmarks() {
+		ExtBuilder::default().build().execute_with(|| {
+			assert_ok!(test_benchmark_dust_account::<Test>());
+		});
+	}
+}