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don't sync borrow on deposit - it's redundant (#876)

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This commit is contained in:
Denali Marsh 2021-03-15 16:29:13 +01:00 committed by GitHub
parent 72bfee6523
commit 21cf7685df
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 1 additions and 26 deletions
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7
x/hard/keeper/deposit.go
View File

@ -23,19 +23,14 @@ func (k Keeper) Deposit(ctx sdk.Context, depositor sdk.AccAddress, coins sdk.Coi
}
}
// Call incentive hooks
// Call incentive hook
existingDeposit, hasExistingDeposit := k.GetDeposit(ctx, depositor)
if hasExistingDeposit {
k.BeforeDepositModified(ctx, existingDeposit)
}
existingBorrow, hasExistingBorrow := k.GetBorrow(ctx, depositor)
if hasExistingBorrow {
k.BeforeBorrowModified(ctx, existingBorrow)
}
// Sync any outstanding interest
k.SyncSupplyInterest(ctx, depositor)
k.SyncBorrowInterest(ctx, depositor)
err := k.ValidateDeposit(ctx, coins)
if err != nil {

20
x/hard/keeper/interest_test.go
View File

@ -1389,20 +1389,12 @@ func (suite *KeeperTestSuite) TestSupplyInterest() {
userPercentOfTotalSupplied := userSupplyCoinAmount.ToDec().Quo(supplyCoinPriorAmount.ToDec())
userExpectedSupplyInterestCoin := sdk.NewCoin(coinDenom, userPercentOfTotalSupplied.MulInt(expectedSupplyInterest).TruncateInt())
// Calculate percentage of borrow interest profits owed to user
userBorrowBefore, _ := suite.keeper.GetBorrow(snapshotCtx, tc.args.user)
userBorrowCoinAmount := userBorrowBefore.Amount.AmountOf(coinDenom)
userPercentOfTotalBorrowed := userBorrowCoinAmount.ToDec().Quo(borrowCoinPriorAmount.ToDec())
userExpectedBorrowInterestCoin := sdk.NewCoin(coinDenom, userPercentOfTotalBorrowed.MulInt(expectedBorrowInterest).TruncateInt())
expectedBorrowCoinsAfter := userBorrowBefore.Amount.Add(userExpectedBorrowInterestCoin)
// Supplying syncs user's owed supply and borrow interest
err = suite.keeper.Deposit(snapshotCtx, tc.args.user, sdk.NewCoins(snapshot.supplyCoin))
suite.Require().NoError(err)
// Fetch user's new borrow and supply balance post-interaction
userSupplyAfter, _ := suite.keeper.GetDeposit(snapshotCtx, tc.args.user)
userBorrowAfter, _ := suite.keeper.GetBorrow(snapshotCtx, tc.args.user)
// Confirm that user's supply index for the denom has increased as expected
var userSupplyAfterIndexFactor sdk.Dec
@ -1416,18 +1408,6 @@ func (suite *KeeperTestSuite) TestSupplyInterest() {
// Check user's supplied amount increased by supply interest owed + the newly supplied coins
expectedSupplyCoinsAfter := userSupplyBefore.Amount.Add(snapshot.supplyCoin).Add(userExpectedSupplyInterestCoin)
suite.Require().Equal(expectedSupplyCoinsAfter, userSupplyAfter.Amount)
// Confirm that user's borrow index for the denom has increased as expected
var userBorrowAfterIndexFactor sdk.Dec
for _, indexFactor := range userBorrowAfter.Index {
if indexFactor.Denom == coinDenom {
userBorrowAfterIndexFactor = indexFactor.Value
}
}
suite.Require().Equal(userBorrowAfterIndexFactor, currBorrowIndexPrior)
// Check user's borrowed amount increased by borrow interest owed
suite.Require().Equal(expectedBorrowCoinsAfter, userBorrowAfter.Amount)
}
prevCtx = snapshotCtx
}