package keeper_test import ( "testing" "github.com/stretchr/testify/suite" "github.com/kava-labs/kava/x/incentive/types" ) // SynchronizeSwapRewardTests runs unit tests for the keeper.SynchronizeSwapReward method // // inputs // - claim in store (only claim.RewardIndexes, claim.Reward) // - global indexes in store // - shares function arg // // outputs // - sets a claim type SynchronizeSwapRewardTests struct { unitTester } func TestSynchronizeSwapReward(t *testing.T) { suite.Run(t, new(SynchronizeSwapRewardTests)) } func (suite *SynchronizeSwapRewardTests) TestClaimUpdatedWhenGlobalIndexesHaveIncreased() { // This is the normal case // Given some time has passed (meaning the global indexes have increased) // When the claim is synced // The user earns rewards for the time passed, and the claim indexes are updated originalReward := arbitraryCoins() poolID := "base:quote" claim := types.SwapClaim{ BaseMultiClaim: types.BaseMultiClaim{ Owner: arbitraryAddress(), Reward: originalReward, }, RewardIndexes: types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "rewarddenom", RewardFactor: d("1000.001"), }, }, }, }, } suite.storeSwapClaim(claim) globalIndexes := types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "rewarddenom", RewardFactor: d("2000.002"), }, }, }, } suite.storeGlobalSwapIndexes(globalIndexes) userShares := i(1e9) suite.keeper.SynchronizeSwapReward(suite.ctx, poolID, claim.Owner, userShares) syncedClaim, _ := suite.keeper.GetSwapClaim(suite.ctx, claim.Owner) // indexes updated from global suite.Equal(globalIndexes, syncedClaim.RewardIndexes) // new reward is (new index - old index) * user shares suite.Equal( cs(c("rewarddenom", 1_000_001_000_000)).Add(originalReward...), syncedClaim.Reward, ) } func (suite *SynchronizeSwapRewardTests) TestClaimUnchangedWhenGlobalIndexesUnchanged() { // It should be safe to call SynchronizeSwapReward multiple times poolID := "base:quote" unchangingIndexes := types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "rewarddenom", RewardFactor: d("1000.001"), }, }, }, } claim := types.SwapClaim{ BaseMultiClaim: types.BaseMultiClaim{ Owner: arbitraryAddress(), Reward: arbitraryCoins(), }, RewardIndexes: unchangingIndexes, } suite.storeSwapClaim(claim) suite.storeGlobalSwapIndexes(unchangingIndexes) userShares := i(1e9) suite.keeper.SynchronizeSwapReward(suite.ctx, poolID, claim.Owner, userShares) syncedClaim, _ := suite.keeper.GetSwapClaim(suite.ctx, claim.Owner) // claim should have the same rewards and indexes as before suite.Equal(claim, syncedClaim) } func (suite *SynchronizeSwapRewardTests) TestClaimUpdatedWhenNewRewardAdded() { // When a new reward is added (via gov) for a pool the user has already deposited to, and the claim is synced; // Then the user earns rewards for the time since the reward was added, and the indexes are added to the claim. originalReward := arbitraryCoins() newlyRewardPoolID := "newlyRewardedPool" claim := types.SwapClaim{ BaseMultiClaim: types.BaseMultiClaim{ Owner: arbitraryAddress(), Reward: originalReward, }, RewardIndexes: types.MultiRewardIndexes{ { CollateralType: "currentlyRewardedPool", RewardIndexes: types.RewardIndexes{ { CollateralType: "reward", RewardFactor: d("1000.001"), }, }, }, }, } suite.storeSwapClaim(claim) globalIndexes := types.MultiRewardIndexes{ { CollateralType: "currentlyRewardedPool", RewardIndexes: types.RewardIndexes{ { CollateralType: "reward", RewardFactor: d("2000.002"), }, }, }, { CollateralType: newlyRewardPoolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "otherreward", // Indexes start at 0 when the reward is added by gov, // so this represents the syncing happening some time later. RewardFactor: d("1000.001"), }, }, }, } suite.storeGlobalSwapIndexes(globalIndexes) userShares := i(1e9) suite.keeper.SynchronizeSwapReward(suite.ctx, newlyRewardPoolID, claim.Owner, userShares) syncedClaim, _ := suite.keeper.GetSwapClaim(suite.ctx, claim.Owner) // the new indexes should be added to the claim, but the old ones should be unchanged newlyRewrdedIndexes, _ := globalIndexes.Get(newlyRewardPoolID) expectedIndexes := claim.RewardIndexes.With(newlyRewardPoolID, newlyRewrdedIndexes) suite.Equal(expectedIndexes, syncedClaim.RewardIndexes) // new reward is (new index - old index) * shares for the synced pool // The old index for `newlyrewarded` isn't in the claim, so it's added starting at 0 for calculating the reward. suite.Equal( cs(c("otherreward", 1_000_001_000_000)).Add(originalReward...), syncedClaim.Reward, ) } func (suite *SynchronizeSwapRewardTests) TestClaimUnchangedWhenNoReward() { // When a pool is not rewarded but the user has deposited to that pool, and the claim is synced; // Then the claim should be the same. claim := types.SwapClaim{ BaseMultiClaim: types.BaseMultiClaim{ Owner: arbitraryAddress(), Reward: arbitraryCoins(), }, RewardIndexes: nonEmptyMultiRewardIndexes, } suite.storeSwapClaim(claim) poolID := "nonRewardPool" // No global indexes stored as this pool is not rewarded userShares := i(1e9) suite.keeper.SynchronizeSwapReward(suite.ctx, poolID, claim.Owner, userShares) syncedClaim, _ := suite.keeper.GetSwapClaim(suite.ctx, claim.Owner) suite.Equal(claim, syncedClaim) } func (suite *SynchronizeSwapRewardTests) TestClaimUpdatedWhenNewRewardDenomAdded() { // When a new reward coin is added (via gov) to an already rewarded pool (that the user has already deposited to), and the claim is synced; // Then the user earns rewards for the time since the reward was added, and the new indexes are added. originalReward := arbitraryCoins() poolID := "base:quote" claim := types.SwapClaim{ BaseMultiClaim: types.BaseMultiClaim{ Owner: arbitraryAddress(), Reward: originalReward, }, RewardIndexes: types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "reward", RewardFactor: d("1000.001"), }, }, }, }, } suite.storeSwapClaim(claim) globalIndexes := types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "reward", RewardFactor: d("2000.002"), }, { CollateralType: "otherreward", // Indexes start at 0 when the reward is added by gov, // so this represents the syncing happening some time later. RewardFactor: d("1000.001"), }, }, }, } suite.storeGlobalSwapIndexes(globalIndexes) userShares := i(1e9) suite.keeper.SynchronizeSwapReward(suite.ctx, poolID, claim.Owner, userShares) syncedClaim, _ := suite.keeper.GetSwapClaim(suite.ctx, claim.Owner) // indexes should have the new reward denom added suite.Equal(globalIndexes, syncedClaim.RewardIndexes) // new reward is (new index - old index) * shares // The old index for `otherreward` isn't in the claim, so it's added starting at 0 for calculating the reward. suite.Equal( cs(c("reward", 1_000_001_000_000), c("otherreward", 1_000_001_000_000)).Add(originalReward...), syncedClaim.Reward, ) } func (suite *SynchronizeSwapRewardTests) TestClaimUpdatedWhenGlobalIndexesIncreasedAndSourceIsZero() { // Given some time has passed (meaning the global indexes have increased) // When the claim is synced, but the user has no shares // The user earns no rewards for the time passed, but the claim indexes are updated poolID := "base:quote" claim := types.SwapClaim{ BaseMultiClaim: types.BaseMultiClaim{ Owner: arbitraryAddress(), Reward: arbitraryCoins(), }, RewardIndexes: types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "rewarddenom", RewardFactor: d("1000.001"), }, }, }, }, } suite.storeSwapClaim(claim) globalIndexes := types.MultiRewardIndexes{ { CollateralType: poolID, RewardIndexes: types.RewardIndexes{ { CollateralType: "rewarddenom", RewardFactor: d("2000.002"), }, }, }, } suite.storeGlobalSwapIndexes(globalIndexes) userShares := i(0) suite.keeper.SynchronizeSwapReward(suite.ctx, poolID, claim.Owner, userShares) syncedClaim, _ := suite.keeper.GetSwapClaim(suite.ctx, claim.Owner) // indexes updated from global suite.Equal(globalIndexes, syncedClaim.RewardIndexes) // reward is unchanged suite.Equal(claim.Reward, syncedClaim.Reward) }