0g-chain/x/incentive/keeper/rewards_usdx_unit_test.go
drklee3 3375484f79
Update deprecated Cosmos methods (#1530)
* Use cosmossdk.io/errors for deprecated error methods

* Update error registration with cosmossdk.io/errors

* Use cosmossdk.io/math for deprecated sdk.Int alias

* Fix modified proto file

* Update sdk.Int usage in swap hooks

* Update e2e test deprecated method usage
2023-04-05 16:21:59 -07:00

303 lines
9.5 KiB
Go

package keeper_test
import (
"testing"
sdkmath "cosmossdk.io/math"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/stretchr/testify/suite"
cdptypes "github.com/kava-labs/kava/x/cdp/types"
"github.com/kava-labs/kava/x/incentive/types"
)
// usdxRewardsUnitTester contains common methods for running unit tests for keeper methods related to the USDX minting rewards
type usdxRewardsUnitTester struct {
unitTester
}
func (suite *usdxRewardsUnitTester) storeGlobalUSDXIndexes(indexes types.RewardIndexes) {
for _, ri := range indexes {
suite.keeper.SetUSDXMintingRewardFactor(suite.ctx, ri.CollateralType, ri.RewardFactor)
}
}
func (suite *usdxRewardsUnitTester) storeClaim(claim types.USDXMintingClaim) {
suite.keeper.SetUSDXMintingClaim(suite.ctx, claim)
}
type InitializeUSDXMintingClaimTests struct {
usdxRewardsUnitTester
}
func TestInitializeUSDXMintingClaims(t *testing.T) {
suite.Run(t, new(InitializeUSDXMintingClaimTests))
}
func (suite *InitializeUSDXMintingClaimTests) TestClaimIndexIsSetWhenClaimDoesNotExist() {
collateralType := "bnb-a"
cdp := NewCDPBuilder(arbitraryAddress(), collateralType).Build()
globalIndexes := types.RewardIndexes{{
CollateralType: collateralType,
RewardFactor: d("0.2"),
}}
suite.storeGlobalUSDXIndexes(globalIndexes)
suite.keeper.InitializeUSDXMintingClaim(suite.ctx, cdp)
syncedClaim, f := suite.keeper.GetUSDXMintingClaim(suite.ctx, cdp.Owner)
suite.True(f)
suite.Equal(globalIndexes, syncedClaim.RewardIndexes)
}
func (suite *InitializeUSDXMintingClaimTests) TestClaimIndexIsSetWhenClaimExists() {
collateralType := "bnb-a"
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
},
RewardIndexes: types.RewardIndexes{{
CollateralType: collateralType,
RewardFactor: d("0.1"),
}},
}
suite.storeClaim(claim)
globalIndexes := types.RewardIndexes{{
CollateralType: collateralType,
RewardFactor: d("0.2"),
}}
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).Build()
suite.keeper.InitializeUSDXMintingClaim(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, cdp.Owner)
suite.Equal(globalIndexes, syncedClaim.RewardIndexes)
}
type SynchronizeUSDXMintingRewardTests struct {
usdxRewardsUnitTester
}
func TestSynchronizeUSDXMintingReward(t *testing.T) {
suite.Run(t, new(SynchronizeUSDXMintingRewardTests))
}
func (suite *SynchronizeUSDXMintingRewardTests) TestRewardUnchangedWhenGlobalIndexesUnchanged() {
unchangingRewardIndexes := nonEmptyRewardIndexes
collateralType := extractFirstCollateralType(unchangingRewardIndexes)
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: unchangingRewardIndexes,
}
suite.storeClaim(claim)
suite.storeGlobalUSDXIndexes(unchangingRewardIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).WithSourceShares(1e12).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
suite.Equal(claim.Reward, syncedClaim.Reward)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestRewardIsIncrementedWhenGlobalIndexIncreased() {
collateralType := "bnb-a"
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: types.RewardIndexes{
{
CollateralType: collateralType,
RewardFactor: d("0.1"),
},
},
}
suite.storeClaim(claim)
globalIndexes := types.RewardIndexes{
{
CollateralType: collateralType,
RewardFactor: d("0.2"),
},
}
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).WithSourceShares(1e12).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
// reward is ( new index - old index ) * cdp.TotalPrincipal
suite.Equal(c(types.USDXMintingRewardDenom, 1e11), syncedClaim.Reward)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestClaimIndexIsUpdatedWhenGlobalIndexIncreased() {
claimsRewardIndexes := nonEmptyRewardIndexes
collateralType := extractFirstCollateralType(claimsRewardIndexes)
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: claimsRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseRewardFactors(claimsRewardIndexes)
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, collateralType).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
// Only the claim's index for `collateralType` should have been changed
i, _ := globalIndexes.Get(collateralType)
expectedIndexes := claimsRewardIndexes.With(collateralType, i)
suite.Equal(expectedIndexes, syncedClaim.RewardIndexes)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestClaimIndexIsUpdatedWhenNewRewardAddedAndClaimAlreadyExists() {
claimsRewardIndexes := types.RewardIndexes{
{
CollateralType: "bnb-a",
RewardFactor: d("0.1"),
},
{
CollateralType: "busd-b",
RewardFactor: d("0.4"),
},
}
newRewardIndex := types.NewRewardIndex("xrp-a", d("0.0001"))
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: claimsRewardIndexes,
}
suite.storeClaim(claim)
globalIndexes := increaseRewardFactors(claimsRewardIndexes)
globalIndexes = append(globalIndexes, newRewardIndex)
suite.storeGlobalUSDXIndexes(globalIndexes)
cdp := NewCDPBuilder(claim.Owner, newRewardIndex.CollateralType).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
// Only the claim's index for `collateralType` should have been changed
expectedIndexes := claimsRewardIndexes.With(newRewardIndex.CollateralType, newRewardIndex.RewardFactor)
suite.Equal(expectedIndexes, syncedClaim.RewardIndexes)
}
func (suite *SynchronizeUSDXMintingRewardTests) TestClaimIsUnchangedWhenGlobalFactorMissing() {
claimsRewardIndexes := nonEmptyRewardIndexes
claim := types.USDXMintingClaim{
BaseClaim: types.BaseClaim{
Owner: arbitraryAddress(),
Reward: c(types.USDXMintingRewardDenom, 0),
},
RewardIndexes: claimsRewardIndexes,
}
suite.storeClaim(claim)
// don't store any reward indexes
// create a cdp with collateral type that doesn't exist in the claim's indexes, and does not have a corresponding global factor
cdp := NewCDPBuilder(claim.Owner, "unrewardedcollateral").WithSourceShares(1e12).Build()
suite.keeper.SynchronizeUSDXMintingReward(suite.ctx, cdp)
syncedClaim, _ := suite.keeper.GetUSDXMintingClaim(suite.ctx, claim.Owner)
suite.Equal(claim.RewardIndexes, syncedClaim.RewardIndexes)
suite.Equal(claim.Reward, syncedClaim.Reward)
}
// CDPBuilder is a tool for creating a CDP in tests.
// The builder inherits from cdp.CDP, so fields can be accessed directly if a helper method doesn't exist.
type CDPBuilder struct {
cdptypes.CDP
}
// NewCDPBuilder creates a CdpBuilder containing a CDP with owner and collateral type set.
func NewCDPBuilder(owner sdk.AccAddress, collateralType string) CDPBuilder {
return CDPBuilder{
CDP: cdptypes.CDP{
Owner: owner,
Type: collateralType,
// The zero value of Principal and AccumulatedFees (type sdk.Coin) is invalid as the denom is ""
// Set them to the default denom, but with 0 amount.
Principal: c(cdptypes.DefaultStableDenom, 0),
AccumulatedFees: c(cdptypes.DefaultStableDenom, 0),
// zero value of sdk.Dec causes nil pointer panics
InterestFactor: sdk.OneDec(),
},
}
}
// Build assembles and returns the final deposit.
func (builder CDPBuilder) Build() cdptypes.CDP { return builder.CDP }
// WithSourceShares adds a principal amount and interest factor such that the source shares for this CDP is equal to specified.
// With a factor of 1, the total principal is the source shares. This picks an arbitrary factor to ensure factors are accounted for in production code.
func (builder CDPBuilder) WithSourceShares(shares int64) CDPBuilder {
if !builder.GetTotalPrincipal().Amount.Equal(sdk.ZeroInt()) {
panic("setting source shares on cdp with existing principal or fees not implemented")
}
if !(builder.InterestFactor.IsNil() || builder.InterestFactor.Equal(sdk.OneDec())) {
panic("setting source shares on cdp with existing interest factor not implemented")
}
// pick arbitrary interest factor
factor := sdkmath.NewInt(2)
// Calculate deposit amount that would equal the requested source shares given the above factor.
principal := sdkmath.NewInt(shares).Mul(factor)
builder.Principal = sdk.NewCoin(cdptypes.DefaultStableDenom, principal)
builder.InterestFactor = sdk.NewDecFromInt(factor)
return builder
}
func (builder CDPBuilder) WithPrincipal(principal sdkmath.Int) CDPBuilder {
builder.Principal = sdk.NewCoin(cdptypes.DefaultStableDenom, principal)
return builder
}
var nonEmptyRewardIndexes = types.RewardIndexes{
{
CollateralType: "bnb-a",
RewardFactor: d("0.1"),
},
{
CollateralType: "busd-b",
RewardFactor: d("0.4"),
},
}
func extractFirstCollateralType(indexes types.RewardIndexes) string {
if len(indexes) == 0 {
panic("cannot extract a collateral type from 0 length RewardIndexes")
}
return indexes[0].CollateralType
}