tests.rs

			RuntimeOrigin::root(),
			Percent::from_percent(200)
		));
		assert_eq!(ValidatorCount::<Test>::get(), 40);

		// errors
		assert_noop!(
			Staking::scale_validator_count(RuntimeOrigin::root(), Percent::from_percent(126)),
			Error::<Test>::TooManyValidators,
		);
	})
}

#[test]
fn set_min_commission_works_with_admin_origin() {
	ExtBuilder::default().build_and_execute(|| {
		// no minimum commission set initially
		assert_eq!(MinCommission::<Test>::get(), Zero::zero());

		// root can set min commission
		assert_ok!(Staking::set_min_commission(RuntimeOrigin::root(), Perbill::from_percent(10)));

		assert_eq!(MinCommission::<Test>::get(), Perbill::from_percent(10));

		// Non privileged origin can not set min_commission
		assert_noop!(
			Staking::set_min_commission(RuntimeOrigin::signed(2), Perbill::from_percent(15)),
			BadOrigin
		);

		// Admin Origin can set min commission
		assert_ok!(Staking::set_min_commission(
			RuntimeOrigin::signed(1),
			Perbill::from_percent(15),
		));

		// setting commission below min_commission fails
		assert_noop!(
			Staking::validate(
				RuntimeOrigin::signed(11),
				ValidatorPrefs { commission: Perbill::from_percent(14), blocked: false }
			),
			Error::<Test>::CommissionTooLow
		);

		// setting commission >= min_commission works
		assert_ok!(Staking::validate(
			RuntimeOrigin::signed(11),
			ValidatorPrefs { commission: Perbill::from_percent(15), blocked: false }
		));
	})
}

mod staking_interface {
	use frame_support::storage::with_storage_layer;
	use sp_staking::StakingInterface;

	use super::*;

	#[test]
	fn force_unstake_with_slash_works() {
		ExtBuilder::default().build_and_execute(|| {
			// without slash
			let _ = with_storage_layer::<(), _, _>(|| {
				// bond an account, can unstake
				assert_eq!(Staking::bonded(&11), Some(11));
				assert_ok!(<Staking as StakingInterface>::force_unstake(11));
				Err(DispatchError::from("revert"))
			});

			// bond again and add a slash, still can unstake.
			assert_eq!(Staking::bonded(&11), Some(11));
			add_slash(&11);
			assert_ok!(<Staking as StakingInterface>::force_unstake(11));
		});
	}

	#[test]
	fn do_withdraw_unbonded_with_wrong_slash_spans_works_as_expected() {
		ExtBuilder::default().build_and_execute(|| {
			on_offence_now(
				&[OffenceDetails {
					offender: (11, Staking::eras_stakers(active_era(), 11)),
					reporters: vec![],
				}],
				&[Perbill::from_percent(100)],
			);

			assert_eq!(Staking::bonded(&11), Some(11));

			assert_noop!(
				Staking::withdraw_unbonded(RuntimeOrigin::signed(11), 0),
				Error::<Test>::IncorrectSlashingSpans
			);

			let num_slashing_spans = Staking::slashing_spans(&11).map_or(0, |s| s.iter().count());
			assert_ok!(Staking::withdraw_unbonded(
				RuntimeOrigin::signed(11),
				num_slashing_spans as u32
			));
		});
	}

	#[test]
	fn status() {
		ExtBuilder::default().build_and_execute(|| {
			// stash of a validator is identified as a validator
			assert_eq!(Staking::status(&11).unwrap(), StakerStatus::Validator);
			// .. but not the controller.
			assert!(Staking::status(&10).is_err());

			// stash of nominator is identified as a nominator
			assert_eq!(Staking::status(&101).unwrap(), StakerStatus::Nominator(vec![11, 21]));
			// .. but not the controller.
			assert!(Staking::status(&100).is_err());

			// stash of chilled is identified as a chilled
			assert_eq!(Staking::status(&41).unwrap(), StakerStatus::Idle);
			// .. but not the controller.
			assert!(Staking::status(&40).is_err());

			// random other account.
			assert!(Staking::status(&42).is_err());
		})
	}
}