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add stability fee validation (#307)

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This commit is contained in:
Ruaridh 2020-01-16 16:21:38 +01:00 committed by Kevin Davis
parent 2d9820b3d1
commit c5043ffabe
1 changed files with 6 additions and 1 deletions
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7
x/cdp/types/params.go
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@ -162,6 +162,7 @@ func (p *Params) ParamSetPairs() params.ParamSetPairs {
// Validate checks that the parameters have valid values. // Validate checks that the parameters have valid values.
func (p Params) Validate() error { func (p Params) Validate() error {
// validate debt params
debtDenoms := make(map[string]int) debtDenoms := make(map[string]int)
debtParamsDebtLimit := sdk.Coins{} debtParamsDebtLimit := sdk.Coins{}
for _, dp := range p.DebtParams { for _, dp := range p.DebtParams {
@ -184,6 +185,7 @@ func (p Params) Validate() error {
p.GlobalDebtLimit, debtParamsDebtLimit) p.GlobalDebtLimit, debtParamsDebtLimit)
} }
// validate collateral params
collateralDupMap := make(map[string]int) collateralDupMap := make(map[string]int)
prefixDupMap := make(map[int]int) prefixDupMap := make(map[int]int)
collateralParamsDebtLimit := sdk.Coins{} collateralParamsDebtLimit := sdk.Coins{}
@ -226,16 +228,19 @@ func (p Params) Validate() error {
if !cp.AuctionSize.IsPositive() { if !cp.AuctionSize.IsPositive() {
return fmt.Errorf("auction size should be positive, is %s for %s", cp.AuctionSize, cp.Denom) return fmt.Errorf("auction size should be positive, is %s for %s", cp.AuctionSize, cp.Denom)
} }
if cp.StabilityFee.LT(sdk.OneDec()) {
return fmt.Errorf("stability fee must be ≥ 1.0, is %s for %s", cp.StabilityFee, cp.Denom)
}
} }
if collateralParamsDebtLimit.IsAnyGT(p.GlobalDebtLimit) { if collateralParamsDebtLimit.IsAnyGT(p.GlobalDebtLimit) {
return fmt.Errorf("collateral debt limit exceeds global debt limit:\n\tglobal debt limit: %s\n\tcollateral debt limits: %s", return fmt.Errorf("collateral debt limit exceeds global debt limit:\n\tglobal debt limit: %s\n\tcollateral debt limits: %s",
p.GlobalDebtLimit, collateralParamsDebtLimit) p.GlobalDebtLimit, collateralParamsDebtLimit)
} }
// validate global params
if p.GlobalDebtLimit.IsAnyNegative() { if p.GlobalDebtLimit.IsAnyNegative() {
return fmt.Errorf("global debt limit should be positive for all debt tokens, is %s", p.GlobalDebtLimit) return fmt.Errorf("global debt limit should be positive for all debt tokens, is %s", p.GlobalDebtLimit)
} }
if !p.SurplusAuctionThreshold.IsPositive() { if !p.SurplusAuctionThreshold.IsPositive() {
return fmt.Errorf("surplus auction threshold should be positive, is %s", p.SurplusAuctionThreshold) return fmt.Errorf("surplus auction threshold should be positive, is %s", p.SurplusAuctionThreshold)
} }