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Fix withdraw panic (#315)

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* fix: remove redundant debt limit param

* wip: test pricefeed genesis

* fix: pricefeed querier

* fix: comments, naming

* fix: query path

* fix: store methods

* fix: query methods

* feat: Liquidation Penalty

* feat: enforce debt floor on repayment

* fix: don't panic if withdrawing full amount

* fix: remove debt from liquidation penalty
This commit is contained in:
Kevin Davis 2020-01-22 16:56:30 +00:00 committed by GitHub
parent 22dc15f757
commit 58deb49e55
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 6 additions and 1 deletions
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3
x/cdp/keeper/cdp.go
View File

@ -412,6 +412,9 @@ func (k Keeper) CalculateCollateralToDebtRatio(ctx sdk.Context, collateral sdk.C
// CalculateCollateralizationRatio returns the collateralization ratio of the input collateral to the input debt plus fees // CalculateCollateralizationRatio returns the collateralization ratio of the input collateral to the input debt plus fees
func (k Keeper) CalculateCollateralizationRatio(ctx sdk.Context, collateral sdk.Coins, principal sdk.Coins, fees sdk.Coins) (sdk.Dec, sdk.Error) { func (k Keeper) CalculateCollateralizationRatio(ctx sdk.Context, collateral sdk.Coins, principal sdk.Coins, fees sdk.Coins) (sdk.Dec, sdk.Error) {
if collateral.IsZero() {
return sdk.ZeroDec(), nil
}
marketID := k.getMarketID(ctx, collateral[0].Denom) marketID := k.getMarketID(ctx, collateral[0].Denom)
price, err := k.pricefeedKeeper.GetCurrentPrice(ctx, marketID) price, err := k.pricefeedKeeper.GetCurrentPrice(ctx, marketID)
if err != nil { if err != nil {

4
x/cdp/keeper/deposit_test.go
View File

@ -93,7 +93,9 @@ func (suite *DepositTestSuite) TestDepositCollateral() {
} }
func (suite *DepositTestSuite) TestWithdrawCollateral() { func (suite *DepositTestSuite) TestWithdrawCollateral() {
err := suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[0], suite.addrs[0], cs(c("xrp", 321000000))) err := suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[0], suite.addrs[0], cs(c("xrp", 400000000)))
suite.Equal(types.CodeInvalidCollateralRatio, err.Result().Code)
err = suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[0], suite.addrs[0], cs(c("xrp", 321000000)))
suite.Equal(types.CodeInvalidCollateralRatio, err.Result().Code) suite.Equal(types.CodeInvalidCollateralRatio, err.Result().Code)
err = suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[1], suite.addrs[0], cs(c("xrp", 10000000))) err = suite.keeper.WithdrawCollateral(suite.ctx, suite.addrs[1], suite.addrs[0], cs(c("xrp", 10000000)))
suite.Equal(types.CodeCdpNotFound, err.Result().Code) suite.Equal(types.CodeCdpNotFound, err.Result().Code)