More tests and checks confirming that ledger.controller is always correct. (#2599)

A bonded ledger fetched with the `StakingLedger` implementation exposes
a method `ledger.controller()` that returns the controller of the
ledger. However, that controller is computed and stored under the
`ledger.controller` field on the fly - i.e when the ledger is fetched
from storage using the `StakingLedger::get` method. The controller field
is never stored in storage.

This PR add a few more tests checks and improves the ledger try-state
checks to make sure these invariants hold true.

---------

Co-authored-by: command-bot <>
Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
This commit is contained in:
Gonçalo Pestana
2024-01-18 23:05:59 +01:00
committed by GitHub
parent 87927bbd7c
commit 9db92115d0
2 changed files with 25 additions and 1 deletions
+11 -1
View File
@@ -1853,7 +1853,17 @@ impl<T: Config> Pallet<T> {
fn check_ledgers() -> Result<(), TryRuntimeError> {
Bonded::<T>::iter()
.map(|(_, ctrl)| Self::ensure_ledger_consistent(ctrl))
.map(|(stash, ctrl)| {
// `ledger.controller` is never stored in raw storage.
let raw = Ledger::<T>::get(stash).unwrap_or_else(|| {
Ledger::<T>::get(ctrl.clone())
.expect("try_check: bonded stash/ctrl does not have an associated ledger")
});
ensure!(raw.controller.is_none(), "raw storage controller should be None");
// ensure ledger consistency.
Self::ensure_ledger_consistent(ctrl)
})
.collect::<Result<Vec<_>, _>>()?;
Ok(())
}