package keeper_test import ( "fmt" sdkmath "cosmossdk.io/math" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/kava-labs/kava/x/swap/types" ) func (suite *keeperTestSuite) TestWithdraw_AllShares() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) poolID := suite.setupPool(reserves, totalShares, owner.GetAddress()) err := suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), totalShares, reserves[0], reserves[1]) suite.Require().NoError(err) suite.PoolDeleted(reserves[0].Denom, reserves[1].Denom) suite.PoolSharesDeleted(owner.GetAddress(), reserves[0].Denom, reserves[1].Denom) suite.AccountBalanceEqual(owner.GetAddress(), reserves) suite.ModuleAccountBalanceEqual(sdk.Coins{}) suite.EventsContains(suite.Ctx.EventManager().Events(), sdk.NewEvent( types.EventTypeSwapWithdraw, sdk.NewAttribute(types.AttributeKeyPoolID, poolID), sdk.NewAttribute(types.AttributeKeyOwner, owner.GetAddress().String()), sdk.NewAttribute(sdk.AttributeKeyAmount, reserves.String()), sdk.NewAttribute(types.AttributeKeyShares, totalShares.String()), )) } func (suite *keeperTestSuite) TestWithdraw_PartialShares() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) poolID := suite.setupPool(reserves, totalShares, owner.GetAddress()) sharesToWithdraw := sdkmath.NewInt(15e6) minCoinA := sdk.NewCoin("usdx", sdkmath.NewInt(25e6)) minCoinB := sdk.NewCoin("ukava", sdkmath.NewInt(5e6)) err := suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), sharesToWithdraw, minCoinA, minCoinB) suite.Require().NoError(err) sharesLeft := totalShares.Sub(sharesToWithdraw) reservesLeft := sdk.NewCoins(reserves[0].Sub(minCoinB), reserves[1].Sub(minCoinA)) suite.PoolShareTotalEqual(poolID, sharesLeft) suite.PoolDepositorSharesEqual(owner.GetAddress(), poolID, sharesLeft) suite.PoolReservesEqual(poolID, reservesLeft) suite.AccountBalanceEqual(owner.GetAddress(), sdk.NewCoins(minCoinA, minCoinB)) suite.ModuleAccountBalanceEqual(reservesLeft) suite.EventsContains(suite.Ctx.EventManager().Events(), sdk.NewEvent( types.EventTypeSwapWithdraw, sdk.NewAttribute(types.AttributeKeyPoolID, poolID), sdk.NewAttribute(types.AttributeKeyOwner, owner.GetAddress().String()), sdk.NewAttribute(sdk.AttributeKeyAmount, sdk.NewCoins(minCoinA, minCoinB).String()), sdk.NewAttribute(types.AttributeKeyShares, sharesToWithdraw.String()), )) } func (suite *keeperTestSuite) TestWithdraw_NoSharesOwned() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) poolID := suite.setupPool(reserves, totalShares, owner.GetAddress()) accWithNoDeposit := sdk.AccAddress("some account") err := suite.Keeper.Withdraw(suite.Ctx, accWithNoDeposit, totalShares, reserves[0], reserves[1]) suite.EqualError(err, fmt.Sprintf("no deposit for account %s and pool %s: deposit not found", accWithNoDeposit.String(), poolID)) } func (suite *keeperTestSuite) TestWithdraw_GreaterThanSharesOwned() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) suite.setupPool(reserves, totalShares, owner.GetAddress()) sharesToWithdraw := totalShares.Add(sdk.OneInt()) err := suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), sharesToWithdraw, reserves[0], reserves[1]) suite.EqualError(err, fmt.Sprintf("withdraw of %s shares greater than %s shares owned: invalid shares", sharesToWithdraw, totalShares)) } func (suite *keeperTestSuite) TestWithdraw_MinWithdraw() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) testCases := []struct { shares sdkmath.Int minCoinA sdk.Coin minCoinB sdk.Coin shouldFail bool }{ {sdkmath.NewInt(1), sdk.NewCoin("ukava", sdkmath.NewInt(1)), sdk.NewCoin("usdx", sdkmath.NewInt(1)), true}, {sdkmath.NewInt(1), sdk.NewCoin("usdx", sdkmath.NewInt(5)), sdk.NewCoin("ukava", sdkmath.NewInt(1)), true}, {sdkmath.NewInt(2), sdk.NewCoin("ukava", sdkmath.NewInt(1)), sdk.NewCoin("usdx", sdkmath.NewInt(1)), true}, {sdkmath.NewInt(2), sdk.NewCoin("usdx", sdkmath.NewInt(5)), sdk.NewCoin("ukava", sdkmath.NewInt(1)), true}, {sdkmath.NewInt(3), sdk.NewCoin("ukava", sdkmath.NewInt(1)), sdk.NewCoin("usdx", sdkmath.NewInt(5)), false}, {sdkmath.NewInt(3), sdk.NewCoin("usdx", sdkmath.NewInt(5)), sdk.NewCoin("ukava", sdkmath.NewInt(1)), false}, } for _, tc := range testCases { suite.Run(fmt.Sprintf("shares=%s minCoinA=%s minCoinB=%s", tc.shares, tc.minCoinA, tc.minCoinB), func() { suite.SetupTest() suite.setupPool(reserves, totalShares, owner.GetAddress()) err := suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), tc.shares, tc.minCoinA, tc.minCoinB) if tc.shouldFail { suite.EqualError(err, "shares must be increased: insufficient liquidity") } else { suite.NoError(err, "expected no liquidity error") } }) } } func (suite *keeperTestSuite) TestWithdraw_BelowMinimum() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) testCases := []struct { shares sdkmath.Int minCoinA sdk.Coin minCoinB sdk.Coin shouldFail bool }{ {sdkmath.NewInt(15e6), sdk.NewCoin("ukava", sdkmath.NewInt(5000001)), sdk.NewCoin("usdx", sdkmath.NewInt(25e6)), true}, } for _, tc := range testCases { suite.Run(fmt.Sprintf("shares=%s minCoinA=%s minCoinB=%s", tc.shares, tc.minCoinA, tc.minCoinB), func() { suite.SetupTest() suite.setupPool(reserves, totalShares, owner.GetAddress()) err := suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), tc.shares, tc.minCoinA, tc.minCoinB) if tc.shouldFail { suite.EqualError(err, "minimum withdraw not met: slippage exceeded") } else { suite.NoError(err, "expected no slippage error") } }) } } func (suite *keeperTestSuite) TestWithdraw_PanicOnMissingPool() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) poolID := suite.setupPool(reserves, totalShares, owner.GetAddress()) suite.Keeper.DeletePool(suite.Ctx, poolID) suite.PanicsWithValue("pool ukava:usdx not found", func() { _ = suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), totalShares, reserves[0], reserves[1]) }, "expected missing pool record to panic") } func (suite *keeperTestSuite) TestWithdraw_PanicOnInvalidPool() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) poolID := suite.setupPool(reserves, totalShares, owner.GetAddress()) poolRecord, found := suite.Keeper.GetPool(suite.Ctx, poolID) suite.Require().True(found, "expected pool record to exist") poolRecord.TotalShares = sdk.ZeroInt() suite.Keeper.SetPool_Raw(suite.Ctx, poolRecord) suite.PanicsWithValue("invalid pool ukava:usdx: total shares must be greater than zero: invalid pool", func() { _ = suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), totalShares, reserves[0], reserves[1]) }, "expected invalid pool record to panic") } func (suite *keeperTestSuite) TestWithdraw_PanicOnModuleInsufficientFunds() { owner := suite.CreateAccount(sdk.Coins{}) reserves := sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(10e6)), sdk.NewCoin("usdx", sdkmath.NewInt(50e6)), ) totalShares := sdkmath.NewInt(30e6) suite.setupPool(reserves, totalShares, owner.GetAddress()) suite.RemoveCoinsFromModule(sdk.NewCoins( sdk.NewCoin("ukava", sdkmath.NewInt(1e6)), sdk.NewCoin("usdx", sdkmath.NewInt(5e6)), )) suite.Panics(func() { _ = suite.Keeper.Withdraw(suite.Ctx, owner.GetAddress(), totalShares, reserves[0], reserves[1]) }, "expected panic when module account does not have enough funds") }