Use proper weights in the pallet-template (#13817)

* benchmarking to generate weights file

* add the calculated weights in the extrinsics

* use benchmarking v2 syntax to generate the weights

* minor syntax change when benchmarking

* added WeightInfo in the mock to pass tests

* minor cargo fmt format changes

substrate/bin/node-template/pallets/template/src/benchmarking.rs

@@ -1,19 +1,34 @@
 //! Benchmarking setup for pallet-template
-
+#![cfg(feature = "runtime-benchmarks")]
 use super::*;
 
 #[allow(unused)]
 use crate::Pallet as Template;
-use frame_benchmarking::v1::{benchmarks, whitelisted_caller};
+use frame_benchmarking::v2::*;
 use frame_system::RawOrigin;
 
-benchmarks! {
-	do_something {
-		let s in 0 .. 100;
+#[benchmarks]
+mod benchmarks {
+	use super::*;
+
+	#[benchmark]
+	fn do_something() {
+		let value = 100u32.into();
 		let caller: T::AccountId = whitelisted_caller();
-	}: _(RawOrigin::Signed(caller), s)
-	verify {
-		assert_eq!(Something::<T>::get(), Some(s));
+		#[extrinsic_call]
+		do_something(RawOrigin::Signed(caller), value);
+
+		assert_eq!(Something::<T>::get(), Some(value));
+	}
+
+	#[benchmark]
+	fn cause_error() {
+		Something::<T>::put(100u32);
+		let caller: T::AccountId = whitelisted_caller();
+		#[extrinsic_call]
+		cause_error(RawOrigin::Signed(caller));
+
+		assert_eq!(Something::<T>::get(), Some(101u32));
 	}
 
 	impl_benchmark_test_suite!(Template, crate::mock::new_test_ext(), crate::mock::Test);