Generate Unit Tests for Benchmarks (#5527)

* Update to latest staking

* generate tests for benchmarking

* add tests, fix warnings

* starting on democracy

* impl_benchmark_tests

* Way more readable

* add test feature flag (does this work?)

* Fix `successful_origin` impl

* democracry benchmark tests

* Fix example benchmarks, add tests

* identity benchmark tests

* Update im-online benchmark tests

* try to add session benchmarking tests (problem with mock)

* staking and timestamp

* add test for treasury, issue with dynamic contains

* utility

* Vesting

* test instead of check

* hide until we figure out what is wrong

* add docs

* close code

* Create custom mock for session-pallet-benchmarking

* Use refcell pattern

* make un-pub

* test-linux-stable includes `runtime-benchmarks` feature

* Revert "test-linux-stable includes `runtime-benchmarks` feature"

This reverts commit a2dab38abd18ac3eb8a6220e4a00e687740bd38c.

* run tests in `--release`

* undo balance change

* build wasm

substrate/frame/balances/src/benchmarking.rs

@@ -119,3 +119,45 @@ benchmarks! {
 		let _ = <Balances<T> as Currency<_>>::make_free_balance_be(&user, balance_amount);
 	}: set_balance(RawOrigin::Root, user_lookup, 0.into(), 0.into())
 }
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+	use crate::tests_composite::{ExtBuilder, Test};
+	use frame_support::assert_ok;
+
+	#[test]
+	fn transfer() {
+		ExtBuilder::default().build().execute_with(|| {
+			assert_ok!(test_benchmark_transfer::<Test>());
+		});
+	}
+
+	#[test]
+	fn transfer_best_case() {
+		ExtBuilder::default().build().execute_with(|| {
+			assert_ok!(test_benchmark_transfer_best_case::<Test>());
+		});
+	}
+
+	#[test]
+	fn transfer_keep_alive() {
+		ExtBuilder::default().build().execute_with(|| {
+			assert_ok!(test_benchmark_transfer_keep_alive::<Test>());
+		});
+	}
+
+	#[test]
+	fn transfer_set_balance() {
+		ExtBuilder::default().build().execute_with(|| {
+			assert_ok!(test_benchmark_set_balance::<Test>());
+		});
+	}
+
+	#[test]
+	fn transfer_set_balance_killing() {
+		ExtBuilder::default().build().execute_with(|| {
+			assert_ok!(test_benchmark_set_balance_killing::<Test>());
+		});
+	}
+}