New root_testing pallet (#12451)

* Move fill_block to RootOffences

* docs

* new pallet

* new line

* fix

* Update frame/root-testing/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update frame/root-testing/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update bin/node/runtime/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update frame/root-testing/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update frame/root-testing/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update frame/root-testing/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* fixes

* problem solved

* revert

* fix dependency

* hopefully making the CI happy

* ...

* dummy call

* remove dummy

* fix warning

Co-authored-by: Bastian Köcher <git@kchr.de>

substrate/frame/root-testing/src/lib.rs

@@ -0,0 +1,54 @@
+// This file is part of Substrate.
+
+// Copyright (C) 2022 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.
+
+//! # Root Testing Pallet
+//!
+//! Pallet that contains extrinsics that can be usefull in testing.
+//!
+//! NOTE: This pallet should only be used for testing purposes and should not be used in production
+//! runtimes!
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use frame_support::dispatch::DispatchResult;
+use sp_runtime::Perbill;
+
+pub use pallet::*;
+
+#[frame_support::pallet]
+pub mod pallet {
+	use super::*;
+	use frame_support::pallet_prelude::*;
+	use frame_system::pallet_prelude::*;
+
+	#[pallet::config]
+	pub trait Config: frame_system::Config {}
+
+	#[pallet::pallet]
+	#[pallet::generate_store(pub(super) trait Store)]
+	pub struct Pallet<T>(_);
+
+	#[pallet::call]
+	impl<T: Config> Pallet<T> {
+		/// A dispatch that will fill the block weight up to the given ratio.
+		#[pallet::weight(*_ratio * T::BlockWeights::get().max_block)]
+		pub fn fill_block(origin: OriginFor<T>, _ratio: Perbill) -> DispatchResult {
+			ensure_root(origin)?;
+			Ok(())
+		}
+	}
+}