mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-10 11:07:30 +00:00
Juan Girini
bcb4d137c9
## Basic example showcasing a migration using the MBM framework This PR has been built on top of https://github.com/paritytech/polkadot-sdk/pull/1781 and adds two new example crates to the `examples` pallet ### Changes Made: Added the `pallet-example-mbm` crate: This crate provides a minimal example of a pallet that uses MBM. It showcases a storage migration where values are migrated from a `u32` to a `u64`. --------- Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
55 lines
1.6 KiB
Rust
55 lines
1.6 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Benchmark the multi-block-migration.
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#![cfg(feature = "runtime-benchmarks")]
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use crate::{
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migrations::{
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v1,
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v1::{weights, weights::WeightInfo},
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},
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Config, Pallet,
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};
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use frame_benchmarking::v2::*;
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use frame_support::{migrations::SteppedMigration, weights::WeightMeter};
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#[benchmarks]
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mod benches {
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use super::*;
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/// Benchmark a single step of the `v1::LazyMigrationV1` migration.
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#[benchmark]
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fn step() {
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v1::v0::MyMap::<T>::insert(0, 0);
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let mut meter = WeightMeter::new();
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#[block]
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{
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v1::LazyMigrationV1::<T, weights::SubstrateWeight<T>>::step(None, &mut meter).unwrap();
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}
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// Check that the new storage is decodable:
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assert_eq!(crate::MyMap::<T>::get(0), Some(0));
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// uses twice the weight once for migration and then for checking if there is another key.
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assert_eq!(meter.consumed(), weights::SubstrateWeight::<T>::step() * 2);
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}
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impl_benchmark_test_suite!(Pallet, crate::mock::new_test_ext(), crate::mock::Runtime);
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}
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