0g-chain/x/cdp/abci_test.go
Ruaridh bab798f50d
fix: avoid panic if cdp debt > debt held by cdp account (#326)
Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>
2020-01-21 20:28:25 +00:00

182 lines
5.8 KiB
Go

package cdp_test
import (
"math/rand"
"testing"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/simulation"
"github.com/kava-labs/kava/app"
"github.com/kava-labs/kava/x/auction"
"github.com/kava-labs/kava/x/cdp"
"github.com/stretchr/testify/suite"
abci "github.com/tendermint/tendermint/abci/types"
tmtime "github.com/tendermint/tendermint/types/time"
)
type ModuleTestSuite struct {
suite.Suite
keeper cdp.Keeper
addrs []sdk.AccAddress
app app.TestApp
cdps cdp.CDPs
ctx sdk.Context
liquidations liquidationTracker
}
type liquidationTracker struct {
xrp []uint64
btc []uint64
debt int64
}
func (suite *ModuleTestSuite) SetupTest() {
tApp := app.NewTestApp()
ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()})
coins := []sdk.Coins{}
tracker := liquidationTracker{}
for j := 0; j < 100; j++ {
coins = append(coins, cs(c("btc", 100000000), c("xrp", 10000000000)))
}
_, addrs := app.GeneratePrivKeyAddressPairs(100)
authGS := app.NewAuthGenState(
addrs, coins)
tApp.InitializeFromGenesisStates(
authGS,
NewPricefeedGenStateMulti(),
NewCDPGenStateMulti(),
)
suite.ctx = ctx
suite.app = tApp
suite.keeper = tApp.GetCDPKeeper()
suite.cdps = cdp.CDPs{}
suite.addrs = addrs
suite.liquidations = tracker
}
func (suite *ModuleTestSuite) createCdps() {
tApp := app.NewTestApp()
ctx := tApp.NewContext(true, abci.Header{Height: 1, Time: tmtime.Now()})
cdps := make(cdp.CDPs, 100)
_, addrs := app.GeneratePrivKeyAddressPairs(100)
coins := []sdk.Coins{}
tracker := liquidationTracker{}
for j := 0; j < 100; j++ {
coins = append(coins, cs(c("btc", 100000000), c("xrp", 10000000000)))
}
authGS := app.NewAuthGenState(
addrs, coins)
tApp.InitializeFromGenesisStates(
authGS,
NewPricefeedGenStateMulti(),
NewCDPGenStateMulti(),
)
suite.ctx = ctx
suite.app = tApp
suite.keeper = tApp.GetCDPKeeper()
for j := 0; j < 100; j++ {
collateral := "xrp"
amount := 10000000000
debt := simulation.RandIntBetween(rand.New(rand.NewSource(int64(j))), 750000000, 1249000000)
if j%2 == 0 {
collateral = "btc"
amount = 100000000
debt = simulation.RandIntBetween(rand.New(rand.NewSource(int64(j))), 2700000000, 5332000000)
if debt >= 4000000000 {
tracker.btc = append(tracker.btc, uint64(j+1))
tracker.debt += int64(debt)
}
} else {
if debt >= 1000000000 {
tracker.xrp = append(tracker.xrp, uint64(j+1))
tracker.debt += int64(debt)
}
}
suite.Nil(suite.keeper.AddCdp(suite.ctx, addrs[j], cs(c(collateral, int64(amount))), cs(c("usdx", int64(debt)))))
c, f := suite.keeper.GetCDP(suite.ctx, collateral, uint64(j+1))
suite.True(f)
cdps[j] = c
}
suite.cdps = cdps
suite.addrs = addrs
suite.liquidations = tracker
}
func (suite *ModuleTestSuite) setPrice(price sdk.Dec, market string) {
pfKeeper := suite.app.GetPriceFeedKeeper()
pfKeeper.SetPrice(suite.ctx, sdk.AccAddress{}, market, price, suite.ctx.BlockTime().Add(time.Hour*3))
err := pfKeeper.SetCurrentPrices(suite.ctx, market)
suite.NoError(err)
pp, err := pfKeeper.GetCurrentPrice(suite.ctx, market)
suite.NoError(err)
suite.Equal(price, pp.Price)
}
func (suite *ModuleTestSuite) TestBeginBlock() {
suite.createCdps()
sk := suite.app.GetSupplyKeeper()
acc := sk.GetModuleAccount(suite.ctx, cdp.ModuleName)
originalXrpCollateral := acc.GetCoins().AmountOf("xrp")
suite.setPrice(d("0.2"), "xrp:usd")
cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper)
acc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName)
finalXrpCollateral := acc.GetCoins().AmountOf("xrp")
seizedXrpCollateral := originalXrpCollateral.Sub(finalXrpCollateral)
xrpLiquidations := int(seizedXrpCollateral.Quo(i(10000000000)).Int64())
suite.Equal(len(suite.liquidations.xrp), xrpLiquidations)
acc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName)
originalBtcCollateral := acc.GetCoins().AmountOf("btc")
suite.setPrice(d("6000"), "btc:usd")
cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper)
acc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName)
finalBtcCollateral := acc.GetCoins().AmountOf("btc")
seizedBtcCollateral := originalBtcCollateral.Sub(finalBtcCollateral)
btcLiquidations := int(seizedBtcCollateral.Quo(i(100000000)).Int64())
suite.Equal(len(suite.liquidations.btc), btcLiquidations)
acc = sk.GetModuleAccount(suite.ctx, auction.ModuleName)
suite.Equal(suite.liquidations.debt, acc.GetCoins().AmountOf("debt").Int64())
}
func (suite *ModuleTestSuite) TestSeizeSingleCdpWithFees() {
err := suite.keeper.AddCdp(suite.ctx, suite.addrs[0], cs(c("xrp", 10000000000)), cs(c("usdx", 1000000000)))
suite.NoError(err)
suite.keeper.SetPreviousBlockTime(suite.ctx, suite.ctx.BlockTime())
previousBlockTime, _ := suite.keeper.GetPreviousBlockTime(suite.ctx)
suite.Equal(i(1000000000), suite.keeper.GetTotalPrincipal(suite.ctx, "xrp", "usdx"))
sk := suite.app.GetSupplyKeeper()
cdpMacc := sk.GetModuleAccount(suite.ctx, cdp.ModuleName)
suite.Equal(i(1000000000), cdpMacc.GetCoins().AmountOf("debt"))
for i := 0; i < 100; i++ {
suite.ctx = suite.ctx.WithBlockTime(suite.ctx.BlockTime().Add(time.Second * 6))
cdp.BeginBlocker(suite.ctx, abci.RequestBeginBlock{Header: suite.ctx.BlockHeader()}, suite.keeper)
}
cdpMacc = sk.GetModuleAccount(suite.ctx, cdp.ModuleName)
suite.Equal(i(1000000900), (cdpMacc.GetCoins().AmountOf("debt")))
cdp, _ := suite.keeper.GetCDP(suite.ctx, "xrp", 1)
timeElapsed := sdk.NewInt(suite.ctx.BlockTime().Unix() - previousBlockTime.Unix())
fees := suite.keeper.CalculateFees(suite.ctx, cdp.Principal, timeElapsed, "xrp")
suite.Equal(i(928), fees.AmountOf("usdx"))
err = suite.keeper.SeizeCollateral(suite.ctx, cdp)
suite.NoError(err)
}
func TestModuleTestSuite(t *testing.T) {
suite.Run(t, new(ModuleTestSuite))
}