From f56208c93fbd58f2e412d103dad6d90cd65e5606 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bastian=20K=C3=B6cher?= Date: Fri, 17 May 2024 13:35:15 +0200 Subject: [PATCH] pallet_balances: Add `try_state` for checking `Holds` and `Freezes` (#4490) Co-authored-by: command-bot <> --- substrate/frame/balances/src/lib.rs | 25 ++++++++++++++- .../frame/balances/src/tests/general_tests.rs | 32 +++++++++++++++++++ 2 files changed, 56 insertions(+), 1 deletion(-) diff --git a/substrate/frame/balances/src/lib.rs b/substrate/frame/balances/src/lib.rs index 8d904d3d21b8a..56eb81b49e2db 100644 --- a/substrate/frame/balances/src/lib.rs +++ b/substrate/frame/balances/src/lib.rs @@ -542,8 +542,8 @@ pub mod pallet { #[pallet::hooks] impl, I: 'static> Hooks> for Pallet { - #[cfg(not(feature = "insecure_zero_ed"))] fn integrity_test() { + #[cfg(not(feature = "insecure_zero_ed"))] assert!( !>::ExistentialDeposit::get().is_zero(), "The existential deposit must be greater than zero!" @@ -555,6 +555,29 @@ pub mod pallet { T::MaxFreezes::get(), ::VARIANT_COUNT, ); } + + #[cfg(feature = "try-runtime")] + fn try_state(_n: BlockNumberFor) -> Result<(), sp_runtime::TryRuntimeError> { + Holds::::iter_keys().try_for_each(|k| { + if Holds::::decode_len(k).unwrap_or(0) > + T::RuntimeHoldReason::VARIANT_COUNT as usize + { + Err("Found `Hold` with too many elements") + } else { + Ok(()) + } + })?; + + Freezes::::iter_keys().try_for_each(|k| { + if Freezes::::decode_len(k).unwrap_or(0) > T::MaxFreezes::get() as usize { + Err("Found `Freeze` with too many elements") + } else { + Ok(()) + } + })?; + + Ok(()) + } } #[pallet::call(weight(>::WeightInfo))] diff --git a/substrate/frame/balances/src/tests/general_tests.rs b/substrate/frame/balances/src/tests/general_tests.rs index 0f3e015d0a892..a855fae5616af 100644 --- a/substrate/frame/balances/src/tests/general_tests.rs +++ b/substrate/frame/balances/src/tests/general_tests.rs @@ -109,3 +109,35 @@ fn regression_historic_acc_does_not_evaporate_reserve() { }); }); } + +#[cfg(feature = "try-runtime")] +#[test] +fn try_state_works() { + use crate::{Config, Freezes, Holds}; + use frame_support::{ + storage, + traits::{Get, Hooks, VariantCount}, + }; + + ExtBuilder::default().build_and_execute_with(|| { + storage::unhashed::put( + &Holds::::hashed_key_for(1), + &vec![0u8; ::RuntimeHoldReason::VARIANT_COUNT as usize + 1], + ); + + assert!(format!("{:?}", Balances::try_state(0).unwrap_err()) + .contains("Found `Hold` with too many elements")); + }); + + ExtBuilder::default().build_and_execute_with(|| { + let max_freezes: u32 = ::MaxFreezes::get(); + + storage::unhashed::put( + &Freezes::::hashed_key_for(1), + &vec![0u8; max_freezes as usize + 1], + ); + + assert!(format!("{:?}", Balances::try_state(0).unwrap_err()) + .contains("Found `Freeze` with too many elements")); + }); +}