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351 lines
11 KiB
Go
351 lines
11 KiB
Go
package keeper_test
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import (
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"fmt"
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"testing"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/stretchr/testify/require"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/kava-labs/kava/app"
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"github.com/kava-labs/kava/x/cdp/types"
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"github.com/kava-labs/kava/x/pricefeed"
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)
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// How could one reduce the number of params in the test cases. Create a table driven test for each of the 4 add/withdraw collateral/debt?
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// These are more like app level tests - I think this is a symptom of having 'ModifyCDP' do a lot. Could be easier for testing purposes to break it down.
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func TestKeeper_ModifyCDP(t *testing.T) {
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_, addrs := app.GeneratePrivKeyAddressPairs(1)
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ownerAddr := addrs[0]
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type state struct {
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CDP types.CDP
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OwnerCoins sdk.Coins
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GlobalDebt sdk.Int
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CollateralState types.CollateralState
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}
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type args struct {
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owner sdk.AccAddress
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collateralDenom string
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changeInCollateral sdk.Int
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changeInDebt sdk.Int
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}
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tests := []struct {
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name string
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priorState state
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price string
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// also missing CDPModuleParams
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args args
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expectPass bool
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expectedState state
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}{
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{
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"addCollateralAndDecreaseDebt",
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state{types.CDP{ownerAddr, "xrp", i(100), i(2)}, cs(c("xrp", 10), c("usdx", 2)), i(2), types.CollateralState{"xrp", i(2)}},
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"10.345",
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args{ownerAddr, "xrp", i(10), i(-1)},
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true,
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state{types.CDP{ownerAddr, "xrp", i(110), i(1)}, cs( /* 0xrp */ c("usdx", 1)), i(1), types.CollateralState{"xrp", i(1)}},
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},
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{
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"removeTooMuchCollateral",
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state{types.CDP{ownerAddr, "xrp", i(1000), i(200)}, cs(c("xrp", 10), c("usdx", 10)), i(200), types.CollateralState{"xrp", i(200)}},
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"1.00",
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args{ownerAddr, "xrp", i(-601), i(0)},
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false,
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state{types.CDP{ownerAddr, "xrp", i(1000), i(200)}, cs(c("xrp", 10), c("usdx", 10)), i(200), types.CollateralState{"xrp", i(200)}},
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},
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{
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"withdrawTooMuchStableCoin",
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state{types.CDP{ownerAddr, "xrp", i(1000), i(200)}, cs(c("xrp", 10), c("usdx", 10)), i(200), types.CollateralState{"xrp", i(200)}},
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"1.00",
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args{ownerAddr, "xrp", i(0), i(301)},
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false,
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state{types.CDP{ownerAddr, "xrp", i(1000), i(200)}, cs(c("xrp", 10), c("usdx", 10)), i(200), types.CollateralState{"xrp", i(200)}},
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},
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{
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"createCDPAndWithdrawStable",
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state{types.CDP{}, cs(c("xrp", 10), c("usdx", 10)), i(0), types.CollateralState{"xrp", i(0)}},
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"1.00",
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args{ownerAddr, "xrp", i(5), i(2)},
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true,
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state{types.CDP{ownerAddr, "xrp", i(5), i(2)}, cs(c("xrp", 5), c("usdx", 12)), i(2), types.CollateralState{"xrp", i(2)}},
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},
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{
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"emptyCDP",
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state{types.CDP{ownerAddr, "xrp", i(1000), i(200)}, cs(c("xrp", 10), c("usdx", 201)), i(200), types.CollateralState{"xrp", i(200)}},
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"1.00",
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args{ownerAddr, "xrp", i(-1000), i(-200)},
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true,
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state{types.CDP{}, cs(c("xrp", 1010), c("usdx", 1)), i(0), types.CollateralState{"xrp", i(0)}},
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},
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{
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"invalidCollateralType",
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state{types.CDP{}, cs(c("shitcoin", 5000000)), i(0), types.CollateralState{}},
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"0.000001",
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args{ownerAddr, "shitcoin", i(5000000), i(1)}, // ratio of 5:1
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false,
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state{types.CDP{}, cs(c("shitcoin", 5000000)), i(0), types.CollateralState{}},
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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// setup keeper
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tApp := app.NewTestApp()
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// initialize cdp owner account with coins
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authGen := tApp.NewAuthGenStateFromAccounts([]sdk.AccAddress{ownerAddr}, []sdk.Coins{tc.priorState.OwnerCoins})
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tApp.InitializeFromGenesisStates(authGen)
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// create a context for db access
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ctx := tApp.NewContext(false, abci.Header{})
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// setup store state
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keeper := tApp.GetCDPKeeper()
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keeper.SetParams(ctx, defaultParamsSingle())
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pricefeedKeeper := tApp.GetPriceFeedKeeper()
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ap := pricefeed.AssetParams{
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Assets: []pricefeed.Asset{
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pricefeed.Asset{AssetCode: "xrp", Description: ""},
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},
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}
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pricefeedKeeper.SetAssetParams(ctx, ap)
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_, err := pricefeedKeeper.SetPrice(
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ctx, ownerAddr, "xrp",
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sdk.MustNewDecFromStr(tc.price),
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sdk.NewInt(ctx.BlockHeight()+10))
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if err != nil {
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t.Log("test context height", ctx.BlockHeight())
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t.Log(err)
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t.Log(tc.name)
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}
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err = pricefeedKeeper.SetCurrentPrices(ctx)
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if err != nil {
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t.Log("test context height", ctx.BlockHeight())
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t.Log(err)
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t.Log(tc.name)
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}
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if tc.priorState.CDP.CollateralDenom != "" { // check if the prior CDP should be created or not (see if an empty one was specified)
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keeper.SetCDP(ctx, tc.priorState.CDP)
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}
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keeper.SetGlobalDebt(ctx, tc.priorState.GlobalDebt)
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if tc.priorState.CollateralState.Denom != "" {
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keeper.SetCollateralState(ctx, tc.priorState.CollateralState)
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}
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// call func under test
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err = keeper.ModifyCDP(ctx, tc.args.owner, tc.args.collateralDenom, tc.args.changeInCollateral, tc.args.changeInDebt)
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// get new state for verification
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actualCDP, found := keeper.GetCDP(ctx, tc.args.owner, tc.args.collateralDenom)
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if tc.name == "removeTooMuchCollateral" {
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t.Log(actualCDP.String())
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}
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// check for err
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if tc.expectPass {
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require.NoError(t, err, fmt.Sprint(err))
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} else {
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require.Error(t, err)
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}
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actualGDebt := keeper.GetGlobalDebt(ctx)
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actualCstate, _ := keeper.GetCollateralState(ctx, tc.args.collateralDenom)
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// check state
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require.Equal(t, tc.expectedState.CDP, actualCDP)
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if tc.expectedState.CDP.CollateralDenom == "" { // if the expected CDP is blank, then expect the CDP to have been deleted (hence not found)
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require.False(t, found)
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} else {
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require.True(t, found)
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}
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require.Equal(t, tc.expectedState.GlobalDebt, actualGDebt)
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require.Equal(t, tc.expectedState.CollateralState, actualCstate)
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// check owner balance
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require.Equal(t, tc.expectedState.OwnerCoins, tApp.GetAccountKeeper().GetAccount(ctx, ownerAddr).GetCoins())
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})
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}
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}
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func TestKeeper_PartialSeizeCDP(t *testing.T) {
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// Setup
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const collateral = "xrp"
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_, addrs := app.GeneratePrivKeyAddressPairs(1)
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testAddr := addrs[0]
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tApp := app.NewTestApp()
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authGenState := tApp.NewAuthGenStateFromAccounts(addrs, []sdk.Coins{cs(c(collateral, 100))})
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tApp.InitializeFromGenesisStates(authGenState)
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ctx := tApp.NewContext(false, abci.Header{})
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keeper := tApp.GetCDPKeeper()
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// setup pricefeed
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pricefeedKeeper := tApp.GetPriceFeedKeeper()
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ap := pricefeed.AssetParams{
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Assets: []pricefeed.Asset{
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pricefeed.Asset{AssetCode: collateral, Description: ""},
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},
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}
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pricefeedKeeper.SetAssetParams(ctx, ap)
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pricefeedKeeper.SetPrice(
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ctx, sdk.AccAddress{}, collateral,
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sdk.MustNewDecFromStr("1.00"),
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i(10))
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require.NoError(t, pricefeedKeeper.SetCurrentPrices(ctx))
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// Create CDP
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keeper.SetParams(ctx, defaultParamsSingle())
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err := keeper.ModifyCDP(ctx, testAddr, collateral, i(10), i(5))
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require.NoError(t, err)
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// Reduce price
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pricefeedKeeper.SetPrice(
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ctx, sdk.AccAddress{}, collateral,
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sdk.MustNewDecFromStr("0.90"),
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i(10))
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require.NoError(t, pricefeedKeeper.SetCurrentPrices(ctx))
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// Seize entire CDP
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err = keeper.PartialSeizeCDP(ctx, testAddr, collateral, i(10), i(5))
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// Check
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require.NoError(t, err)
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_, found := keeper.GetCDP(ctx, testAddr, collateral)
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require.False(t, found)
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collateralState, found := keeper.GetCollateralState(ctx, collateral)
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require.True(t, found)
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require.Equal(t, sdk.ZeroInt(), collateralState.TotalDebt)
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}
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func TestKeeper_GetCDPs(t *testing.T) {
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// setup keeper
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{})
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keeper := tApp.GetCDPKeeper()
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keeper.SetParams(ctx, defaultParamsMulti())
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// setup CDPs
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_, addrs := app.GeneratePrivKeyAddressPairs(2)
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cdps := types.CDPs{
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{addrs[0], "xrp", i(4000), i(5)},
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{addrs[1], "xrp", i(4000), i(2000)},
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{addrs[0], "btc", i(10), i(20)},
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}
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for _, cdp := range cdps {
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keeper.SetCDP(ctx, cdp)
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}
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// Check nil params returns all CDPs
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returnedCdps, err := keeper.GetCDPs(ctx, "", sdk.Dec{})
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require.NoError(t, err)
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require.Equal(t,
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types.CDPs{
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{addrs[0], "btc", i(10), i(20)},
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{addrs[1], "xrp", i(4000), i(2000)},
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{addrs[0], "xrp", i(4000), i(5)}},
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returnedCdps,
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)
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// Check correct CDPs filtered by collateral and sorted
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returnedCdps, err = keeper.GetCDPs(ctx, "xrp", d("0.00000001"))
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require.NoError(t, err)
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require.Equal(t,
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types.CDPs{
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{addrs[1], "xrp", i(4000), i(2000)},
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{addrs[0], "xrp", i(4000), i(5)}},
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returnedCdps,
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)
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returnedCdps, err = keeper.GetCDPs(ctx, "xrp", sdk.Dec{})
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require.NoError(t, err)
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require.Equal(t,
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types.CDPs{
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{addrs[1], "xrp", i(4000), i(2000)},
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{addrs[0], "xrp", i(4000), i(5)}},
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returnedCdps,
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)
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returnedCdps, err = keeper.GetCDPs(ctx, "xrp", d("0.9"))
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require.NoError(t, err)
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require.Equal(t,
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types.CDPs{
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{addrs[1], "xrp", i(4000), i(2000)}},
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returnedCdps,
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)
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// Check high price returns no CDPs
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returnedCdps, err = keeper.GetCDPs(ctx, "xrp", d("999999999.99"))
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require.NoError(t, err)
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require.Equal(t,
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types.CDPs(nil),
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returnedCdps,
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)
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// Check unauthorized collateral denom returns error
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_, err = keeper.GetCDPs(ctx, "a non existent coin", d("0.34023"))
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require.Error(t, err)
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// Check price without collateral returns error
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_, err = keeper.GetCDPs(ctx, "", d("0.34023"))
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require.Error(t, err)
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// Check deleting a CDP removes it
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keeper.DeleteCDP(ctx, cdps[0])
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returnedCdps, err = keeper.GetCDPs(ctx, "", sdk.Dec{})
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require.NoError(t, err)
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require.Equal(t,
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types.CDPs{
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{addrs[0], "btc", i(10), i(20)},
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{addrs[1], "xrp", i(4000), i(2000)}},
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returnedCdps,
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)
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}
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func TestKeeper_GetSetDeleteCDP(t *testing.T) {
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// setup keeper, create CDP
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{})
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keeper := tApp.GetCDPKeeper()
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keeper.SetParams(ctx, defaultParamsSingle())
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_, addrs := app.GeneratePrivKeyAddressPairs(1)
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cdp := types.CDP{addrs[0], "xrp", i(412), i(56)}
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// write and read from store
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keeper.SetCDP(ctx, cdp)
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readCDP, found := keeper.GetCDP(ctx, cdp.Owner, cdp.CollateralDenom)
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// check before and after match
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require.True(t, found)
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require.Equal(t, cdp, readCDP)
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// delete auction
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keeper.DeleteCDP(ctx, cdp)
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// check auction does not exist
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_, found = keeper.GetCDP(ctx, cdp.Owner, cdp.CollateralDenom)
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require.False(t, found)
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}
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func TestKeeper_GetSetGDebt(t *testing.T) {
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// setup keeper, create GDebt
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{})
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keeper := tApp.GetCDPKeeper()
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keeper.SetParams(ctx, defaultParamsSingle())
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gDebt := i(4120000)
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// write and read from store
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keeper.SetGlobalDebt(ctx, gDebt)
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readGDebt := keeper.GetGlobalDebt(ctx)
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// check before and after match
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require.Equal(t, gDebt, readGDebt)
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}
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func TestKeeper_GetSetCollateralState(t *testing.T) {
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// setup keeper, create CState
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tApp := app.NewTestApp()
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ctx := tApp.NewContext(true, abci.Header{})
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keeper := tApp.GetCDPKeeper()
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keeper.SetParams(ctx, defaultParamsSingle())
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collateralState := types.CollateralState{"xrp", i(15400)}
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// write and read from store
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keeper.SetCollateralState(ctx, collateralState)
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readCState, found := keeper.GetCollateralState(ctx, collateralState.Denom)
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// check before and after match
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require.Equal(t, collateralState, readCState)
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require.True(t, found)
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}
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