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fix: the occasional staking module SimulateMsgCancelUnbondingDelegate failure (backport #12933) #12962

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merged 2 commits into from
Aug 18, 2022
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fix: the occasional staking module SimulateMsgCancelUnbondingDelegate failure (backport #12933) #12962

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02e2bc5
fix: the occasional staking module `SimulateMsgCancelUnbondingDelega…
adu-crypto Aug 17, 2022
42e740c
fix conflict
julienrbrt Aug 18, 2022
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18 changes: 16 additions & 2 deletions x/staking/simulation/operations.go
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Original file line number Diff line number Diff line change
Expand Up @@ -410,8 +410,22 @@ func SimulateMsgCancelUnbondingDelegate(ak types.AccountKeeper, bk types.BankKee
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgCancelUnbondingDelegation, "account does have any unbonding delegation"), nil, nil
}

// get random unbonding delegation entry at block height
unbondingDelegationEntry := unbondingDelegation.Entries[r.Intn(len(unbondingDelegation.Entries))]
// This is a temporary fix to make staking simulation pass. We should fetch
// the first unbondingDelegationEntry that matches the creationHeight, because
// currently the staking msgServer chooses the first unbondingDelegationEntry
// with the matching creationHeight.
//
// ref: https://github.com/cosmos/cosmos-sdk/issues/12932
creationHeight := unbondingDelegation.Entries[r.Intn(len(unbondingDelegation.Entries))].CreationHeight

var unbondingDelegationEntry types.UnbondingDelegationEntry

for _, entry := range unbondingDelegation.Entries {
if entry.CreationHeight == creationHeight {
unbondingDelegationEntry = entry
break
}
}

if unbondingDelegationEntry.CompletionTime.Before(ctx.BlockTime()) {
return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgCancelUnbondingDelegation, "unbonding delegation is already processed"), nil, nil
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