Duniter-account pallet benchmark

• Added the benchmark for the duniter-account pallet.

pallets/duniter-account/src/benchmarking.rs

+// Copyright 2021-2023 Axiom-Team
+//
+// This file is part of Duniter-v2S.
+//
+// Duniter-v2S is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, version 3 of the License.
+//
+// Duniter-v2S is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with Duniter-v2S. If not, see <https://www.gnu.org/licenses/>.
+
+#![cfg(feature = "runtime-benchmarks")]
+
+use super::*;
+
+use frame_benchmarking::{benchmarks, whitelisted_caller};
+use frame_support::sp_runtime::{traits::One, Saturating};
+use frame_support::traits::Get;
+
+use frame_support::traits::Currency;
+
+use crate::Pallet;
+
+fn create_pending_accounts<T: Config>(i: u32, is_balance: bool) -> Result<(), &'static str> {
+    for _ in 0..i {
+        let caller: T::AccountId = whitelisted_caller();
+        if is_balance {
+            let existential_deposit = T::ExistentialDeposit::get();
+            let balance = existential_deposit.saturating_mul((200u32).into());
+            let _ = <pallet_balances::Pallet<T> as Currency<T::AccountId>>::make_free_balance_be(
+                &caller,
+                balance.into(),
+            );
+        }
+        PendingNewAccounts::<T>::insert(caller, ());
+    }
+    Ok(())
+}
+
+benchmarks! {
+    on_initialize_with_balance {
+        let i in 0 .. T::MaxNewAccountsPerBlock::get() => create_pending_accounts::<T>(i, true)?;
+    }: { Pallet::<T>::on_initialize(T::BlockNumber::one()); }
+    on_initialize_no_balance {
+        let i in 0 .. T::MaxNewAccountsPerBlock::get() => create_pending_accounts::<T>(i, false)?;
+    }: { Pallet::<T>::on_initialize(T::BlockNumber::one()); }
+}