pallet_transaction_payment/
benchmarking.rs

1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: Apache-2.0
5
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9//
10// 	http://www.apache.org/licenses/LICENSE-2.0
11//
12// Unless required by applicable law or agreed to in writing, software
13// distributed under the License is distributed on an "AS IS" BASIS,
14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15// See the License for the specific language governing permissions and
16// limitations under the License.
17
18//! Benchmarks for Transaction Payment Pallet's transaction extension
19
20extern crate alloc;
21
22use super::*;
23use crate::Pallet;
24use frame_benchmarking::v2::*;
25use frame_support::dispatch::{DispatchInfo, PostDispatchInfo};
26use frame_system::{EventRecord, RawOrigin};
27use sp_runtime::traits::{AsTransactionAuthorizedOrigin, DispatchTransaction, Dispatchable};
28
29fn assert_last_event<T: Config>(generic_event: <T as Config>::RuntimeEvent) {
30	let events = frame_system::Pallet::<T>::events();
31	let system_event: <T as frame_system::Config>::RuntimeEvent = generic_event.into();
32	// compare to the last event record
33	let EventRecord { event, .. } = &events[events.len() - 1];
34	assert_eq!(event, &system_event);
35}
36
37#[benchmarks(where
38	T: Config,
39	T::RuntimeOrigin: AsTransactionAuthorizedOrigin,
40	T::RuntimeCall: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo>,
41)]
42mod benchmarks {
43	use super::*;
44
45	#[benchmark]
46	fn charge_transaction_payment() {
47		let caller: T::AccountId = account("caller", 0, 0);
48		let existential_deposit =
49			<T::OnChargeTransaction as OnChargeTransaction<T>>::minimum_balance();
50
51		let (amount_to_endow, tip) = if existential_deposit.is_zero() {
52			let min_tip: <<T as pallet::Config>::OnChargeTransaction as payment::OnChargeTransaction<T>>::Balance = 1_000_000_000u32.into();
53			(min_tip * 1000u32.into(), min_tip)
54		} else {
55			(existential_deposit * 1000u32.into(), existential_deposit)
56		};
57
58		<T::OnChargeTransaction as OnChargeTransaction<T>>::endow_account(&caller, amount_to_endow);
59
60		let ext: ChargeTransactionPayment<T> = ChargeTransactionPayment::from(tip);
61		let inner = frame_system::Call::remark { remark: alloc::vec![] };
62		let call = T::RuntimeCall::from(inner);
63		let extension_weight = ext.weight(&call);
64		let info = DispatchInfo {
65			call_weight: Weight::from_parts(100, 0),
66			extension_weight,
67			class: DispatchClass::Operational,
68			pays_fee: Pays::Yes,
69		};
70		let mut post_info = PostDispatchInfo {
71			actual_weight: Some(Weight::from_parts(10, 0)),
72			pays_fee: Pays::Yes,
73		};
74
75		#[block]
76		{
77			assert!(ext
78				.test_run(RawOrigin::Signed(caller.clone()).into(), &call, &info, 10, 0, |_| Ok(
79					post_info
80				))
81				.unwrap()
82				.is_ok());
83		}
84
85		post_info.actual_weight.as_mut().map(|w| w.saturating_accrue(extension_weight));
86		let actual_fee = Pallet::<T>::compute_actual_fee(10, &info, &post_info, tip);
87		assert_last_event::<T>(
88			Event::<T>::TransactionFeePaid { who: caller, actual_fee, tip }.into(),
89		);
90	}
91
92	impl_benchmark_test_suite!(Pallet, crate::mock::new_test_ext(), crate::mock::Runtime);
93}
pallet_transaction_payment/benchmarking.rs

pallet_transaction_payment/
benchmarking.rs
