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Improve Staking Limits (#9193)

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* only allow `chill_other` near threshold.

* improve test

* skip limit check for existing validators / nominators

* add `ChillThreshold`

* rename to `set` for consistent api

* more tests

* fix some line width
This commit is contained in:
Shawn Tabrizi
2021-06-28 08:54:24 -04:00
committed by GitHub
parent ee192467e2
commit 5cd04820dc
4 changed files with 171 additions and 49 deletions
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substrate/frame/staking/src/benchmarking.rs
+11 -4
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@@ -601,26 +601,33 @@ benchmarks! {
assert_eq!(targets.len() as u32, v);
}
update_staking_limits {
set_staking_limits {
// This function always does the same thing... just write to 4 storage items.
}: _(
RawOrigin::Root,
BalanceOf::<T>::max_value(),
BalanceOf::<T>::max_value(),
Some(u32::MAX),
Some(u32::MAX)
Some(u32::MAX),
Some(Percent::max_value())
) verify {
assert_eq!(MinNominatorBond::<T>::get(), BalanceOf::<T>::max_value());
assert_eq!(MinValidatorBond::<T>::get(), BalanceOf::<T>::max_value());
assert_eq!(MaxNominatorsCount::<T>::get(), Some(u32::MAX));
assert_eq!(MaxValidatorsCount::<T>::get(), Some(u32::MAX));
assert_eq!(ChillThreshold::<T>::get(), Some(Percent::from_percent(100)));
}
chill_other {
let (_, controller) = create_stash_controller::<T>(USER_SEED, 100, Default::default())?;
Staking::<T>::validate(RawOrigin::Signed(controller.clone()).into(), ValidatorPrefs::default())?;
Staking::<T>::update_staking_limits(
RawOrigin::Root.into(), BalanceOf::<T>::max_value(), BalanceOf::<T>::max_value(), None, None,
Staking::<T>::set_staking_limits(
RawOrigin::Root.into(),
BalanceOf::<T>::max_value(),
BalanceOf::<T>::max_value(),
Some(0),
Some(0),
Some(Percent::from_percent(0))
)?;
let caller = whitelisted_caller();
}: _(RawOrigin::Signed(caller), controller.clone())