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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package osmoutils | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| ) | ||
|
|
||
| // ValidateAddressList validates a slice of addresses. | ||
| // | ||
| // Parameters: | ||
| // - i: The parameter to validate. | ||
| // | ||
| // Returns: | ||
| // - An error if any of the strings are not addresses | ||
| func ValidateAddressList(i interface{}) error { | ||
| whitelist, ok := i.([]string) | ||
|
|
||
| if !ok { | ||
| return fmt.Errorf("invalid parameter type: %T", i) | ||
| } | ||
|
|
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| for _, a := range whitelist { | ||
| if _, err := sdk.AccAddressFromBech32(a); err != nil { | ||
| return fmt.Errorf("invalid address") | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package poolmanager_test | ||
|
|
||
| import ( | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
|
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| "github.com/osmosis-labs/osmosis/osmomath" | ||
| "github.com/osmosis-labs/osmosis/v19/app/apptesting" | ||
| ) | ||
|
|
||
| // validates that the pool manager keeper can charge taker fees correctly. | ||
| // If the sender is whitelisted, then the taker fee is not charged. | ||
| // Otherwise, the taker fee is charged. | ||
| func (s *KeeperTestSuite) TestChargeTakerFee() { | ||
|
|
||
| const ( | ||
| whitelistedSenderIndex = iota | ||
| nonWhitelistedSenderIndex | ||
| ) | ||
|
|
||
| var ( | ||
| defaultTakerFee = osmomath.MustNewDecFromStr("0.01") | ||
| defaultAmount = sdk.NewInt(100) | ||
| ) | ||
|
|
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| tests := map[string]struct { | ||
| shouldSetSenderWhitelist bool | ||
| tokenIn sdk.Coin | ||
| tokenOutDenom string | ||
| senderIndex int | ||
| exactIn bool | ||
| takerFee osmomath.Dec | ||
|
|
||
| expectedResult sdk.Coin | ||
| expectError error | ||
| }{ | ||
| "fee charged on token in": { | ||
| takerFee: defaultTakerFee, | ||
| tokenIn: sdk.NewCoin(apptesting.ETH, defaultAmount), | ||
| tokenOutDenom: apptesting.USDC, | ||
| senderIndex: whitelistedSenderIndex, | ||
| exactIn: true, | ||
|
|
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| expectedResult: sdk.NewCoin(apptesting.ETH, defaultAmount.ToLegacyDec().Mul(osmomath.OneDec().Sub(defaultTakerFee)).TruncateInt()), | ||
| }, | ||
| "fee charged on token in due to different address being whitelisted": { | ||
| takerFee: defaultTakerFee, | ||
| tokenIn: sdk.NewCoin(apptesting.ETH, defaultAmount), | ||
| tokenOutDenom: apptesting.USDC, | ||
| senderIndex: nonWhitelistedSenderIndex, | ||
| exactIn: true, | ||
| shouldSetSenderWhitelist: true, | ||
|
|
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| expectedResult: sdk.NewCoin(apptesting.ETH, defaultAmount.ToLegacyDec().Mul(osmomath.OneDec().Sub(defaultTakerFee)).TruncateInt()), | ||
| }, | ||
| "fee bypassed due to sender being whitelisted": { | ||
| takerFee: defaultTakerFee, | ||
| tokenIn: sdk.NewCoin(apptesting.ETH, defaultAmount), | ||
| tokenOutDenom: apptesting.USDC, | ||
| senderIndex: whitelistedSenderIndex, | ||
| exactIn: true, | ||
| shouldSetSenderWhitelist: true, | ||
|
|
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| expectedResult: sdk.NewCoin(apptesting.ETH, defaultAmount), | ||
| }, | ||
| // TODO: under more test cases | ||
| // https://github.com/osmosis-labs/osmosis/issues/6633 | ||
| // - exactOut: false | ||
| // - sender does not have enough coins | ||
| } | ||
|
|
||
| for name, tc := range tests { | ||
| s.Run(name, func() { | ||
| s.SetupTest() | ||
| poolManager := s.App.PoolManagerKeeper | ||
|
|
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| // Set whitelist. | ||
| if tc.shouldSetSenderWhitelist { | ||
| poolManagerParams := poolManager.GetParams(s.Ctx) | ||
| poolManagerParams.TakerFeeParams.ReducedFeeWhitelist = []string{s.TestAccs[whitelistedSenderIndex].String()} | ||
| poolManager.SetParams(s.Ctx, poolManagerParams) | ||
| } | ||
|
|
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| // Create pool. | ||
| s.PrepareConcentratedPool() | ||
|
|
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| // Set taker fee. | ||
| poolManager.SetDenomPairTakerFee(s.Ctx, tc.tokenIn.Denom, tc.tokenOutDenom, tc.takerFee) | ||
|
|
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| // Pre-fund owner. | ||
| s.FundAcc(s.TestAccs[tc.senderIndex], sdk.NewCoins(tc.tokenIn)) | ||
|
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| // System under test. | ||
| tokenInAfterTakerFee, err := poolManager.ChargeTakerFee(s.Ctx, tc.tokenIn, tc.tokenOutDenom, s.TestAccs[tc.senderIndex], tc.exactIn) | ||
|
|
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| if tc.expectError != nil { | ||
| s.Require().Error(err) | ||
| return | ||
| } | ||
| s.Require().NoError(err) | ||
|
|
||
| // Validate results. | ||
| s.Require().Equal(tc.expectedResult.String(), tokenInAfterTakerFee.String()) | ||
| }) | ||
| } | ||
| } |
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