Updated on 2026-08-14
This commit is contained in:
Tangem
parent
0a44bcfc70
commit
81ed31befb
3 changed files with 542 additions and 2 deletions
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@ -2,11 +2,15 @@ package com.tangem.domain.transaction.usecase
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import arrow.core.raise.catch
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import arrow.core.raise.either
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import com.tangem.blockchain.blockchains.ethereum.EthereumTransactionExtras
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import com.tangem.blockchain.common.Amount
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import com.tangem.blockchain.common.AmountType
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import com.tangem.blockchain.common.Token
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import com.tangem.blockchain.common.TransactionData
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import com.tangem.blockchain.common.transaction.Fee
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import com.tangem.blockchain.common.transaction.TransactionFee
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import com.tangem.blockchain.extensions.Result
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import com.tangem.blockchain.yieldsupply.providers.ethereum.yield.EthereumYieldSupplySendCallData
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import com.tangem.domain.demo.DemoTransactionSender
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import com.tangem.domain.demo.models.DemoConfig
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import com.tangem.domain.models.currency.CryptoCurrency
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@ -15,7 +19,11 @@ import com.tangem.domain.models.wallet.UserWallet
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import com.tangem.domain.transaction.error.GetFeeError
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import com.tangem.domain.transaction.error.mapToFeeError
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import com.tangem.domain.walletmanager.WalletManagersFacade
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import com.tangem.utils.isNullOrZero
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import com.tangem.utils.logging.TangemLogger
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import java.math.BigDecimal
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import java.math.BigInteger
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import java.math.RoundingMode
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/**
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* Use case to get transaction fee
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@ -47,7 +55,7 @@ class GetFeeUseCase(
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is Result.Success -> result.data
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is Result.Failure -> raise(result.mapToFeeError())
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}
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maybeFee
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maybeFee.fixYieldSupplyGasLimit(transactionData = transactionData)
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},
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catch = {
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raise(GetFeeError.DataError(it))
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@ -115,4 +123,58 @@ class GetFeeUseCase(
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)
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},
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)
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private fun TransactionFee.fixYieldSupplyGasLimit(transactionData: TransactionData): TransactionFee {
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val uncompiledTransactionData = transactionData as? TransactionData.Uncompiled ?: return this
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val ethereumExtras = uncompiledTransactionData.extras as? EthereumTransactionExtras ?: return this
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return if (ethereumExtras.callData is EthereumYieldSupplySendCallData) {
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val patchedFee = when (this) {
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is TransactionFee.Choosable -> {
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copy(
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normal = normal.increaseGasLimitBy(INCREASE_GAS_LIMIT_FOR_SUPPLY),
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minimum = minimum.increaseGasLimitBy(INCREASE_GAS_LIMIT_FOR_SUPPLY),
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priority = priority.increaseGasLimitBy(INCREASE_GAS_LIMIT_FOR_SUPPLY),
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)
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}
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is TransactionFee.Single -> copy(
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normal = normal.increaseGasLimitBy(INCREASE_GAS_LIMIT_FOR_SUPPLY),
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)
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}
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TangemLogger.withTag("GAS_FEE_USECASE").i("Fee for Yield Mode adjusted: $patchedFee")
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patchedFee
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} else {
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TangemLogger.withTag("GAS_FEE_USECASE").i("Fee as is: $this")
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this
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}
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}
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/**
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* Increase gasLimit for Fee.Ethereum
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*/
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private fun Fee.increaseGasLimitBy(percent: BigInteger): Fee {
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if (this !is Fee.Ethereum) return this
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val gasLimit = gasLimit
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if (gasLimit == BigInteger.ZERO || amount.value.isNullOrZero()) return this
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val increasedGasPrice = amount.value?.movePointRight(amount.decimals)
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?.divide(gasLimit.toBigDecimal(), RoundingMode.HALF_UP)
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val increasedGasLimit = gasLimit
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.multiply(percent)
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.divide(HUNDRED_PERCENT)
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val increasedAmount = this.amount.copy(
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value = increasedGasLimit.toBigDecimal().multiply(increasedGasPrice).movePointLeft(amount.decimals),
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)
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return when (this) {
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is Fee.Ethereum.TokenCurrency -> error("handle in [REDACTED_TASK_KEY]")
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is Fee.Ethereum.EIP1559 -> copy(amount = increasedAmount, gasLimit = increasedGasLimit)
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is Fee.Ethereum.Legacy -> copy(amount = increasedAmount, gasLimit = increasedGasLimit)
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}
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}
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private companion object {
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private val HUNDRED_PERCENT = 100.toBigInteger() // base 100%
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val INCREASE_GAS_LIMIT_FOR_SUPPLY = 140.toBigInteger() // 40% increase [there is also in Yield FeeExtensions.kt]
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}
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}
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@ -0,0 +1,478 @@
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package com.tangem.domain.transaction.usecase
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import com.google.common.truth.Truth.assertThat
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import com.tangem.blockchain.blockchains.ethereum.EthereumTransactionExtras
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import com.tangem.blockchain.common.*
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import com.tangem.blockchain.common.smartcontract.SmartContractCallData
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import com.tangem.blockchain.common.transaction.Fee
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import com.tangem.blockchain.common.transaction.TransactionFee
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import com.tangem.blockchain.extensions.Result
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import com.tangem.blockchain.yieldsupply.providers.ethereum.yield.EthereumYieldSupplySendCallData
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import com.tangem.domain.demo.models.DemoConfig
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import com.tangem.domain.models.currency.CryptoCurrency
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import com.tangem.domain.models.network.Network
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import com.tangem.domain.models.wallet.UserWallet
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import com.tangem.domain.models.wallet.UserWalletId
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import com.tangem.domain.transaction.error.GetFeeError
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import com.tangem.domain.walletmanager.WalletManagersFacade
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import io.mockk.*
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import kotlinx.coroutines.test.runTest
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import org.junit.Before
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import org.junit.Test
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import java.math.BigDecimal
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import java.math.BigInteger
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/**
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* Unit tests for [GetFeeUseCase].
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*
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* Focus is the Yield Mode gas-limit logic introduced on this branch
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* (uncompiled Ethereum transactions whose call data is [EthereumYieldSupplySendCallData]
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* get their gas limit increased by 40%), plus error mapping, null/exception handling,
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* demo card routing, and crypto-currency-to-amount conversion in the second overload.
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*/
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class GetFeeUseCaseTest {
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private lateinit var walletManagersFacade: WalletManagersFacade
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private lateinit var demoConfig: DemoConfig
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private lateinit var useCase: GetFeeUseCase
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private lateinit var walletManager: WalletManager
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private lateinit var network: Network
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private lateinit var userWallet: UserWallet.Hot
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private lateinit var userWalletId: UserWalletId
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@Before
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fun setup() {
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walletManagersFacade = mockk()
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demoConfig = mockk()
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useCase = GetFeeUseCase(walletManagersFacade, demoConfig)
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walletManager = mockk()
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network = mockk()
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userWalletId = mockk()
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userWallet = mockk<UserWallet.Hot>()
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every { demoConfig.isDemoCardId(any()) } returns false
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every { userWallet.walletId } returns userWalletId
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coEvery {
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walletManagersFacade.getOrCreateWalletManager(userWalletId, network)
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} returns walletManager
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}
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// region invoke(userWallet, network, transactionData) — Yield Mode gas-limit logic
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@Test
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fun `yield supply uncompiled eth tx increases gas limit by 40 percent for Choosable fee`() = runTest {
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// Given
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val txData = yieldSupplyTransactionData()
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val original = TransactionFee.Choosable(
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minimum = eip1559Fee(gasLimit = BigInteger("10000"), value = BigDecimal("0.001")),
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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priority = legacyFee(gasLimit = BigInteger("30000"), value = BigDecimal("0.003")),
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)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.isRight()).isTrue()
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val fee = result.getOrNull().requireAs<TransactionFee.Choosable>()
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assertGasLimitIncreased(
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patched = fee.normal,
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expectedGasLimit = BigInteger("29400"), // 21000 * 140 / 100
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expectedValue = BigDecimal("0.00294"),
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)
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assertGasLimitIncreased(
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patched = fee.minimum,
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expectedGasLimit = BigInteger("14000"), // 10000 * 140 / 100
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expectedValue = BigDecimal("0.0014"),
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)
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assertGasLimitIncreased(
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patched = fee.priority,
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expectedGasLimit = BigInteger("42000"), // 30000 * 140 / 100
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expectedValue = BigDecimal("0.0042"),
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)
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}
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@Test
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fun `yield supply uncompiled eth tx increases gas limit by 40 percent for Single fee`() = runTest {
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// Given
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val txData = yieldSupplyTransactionData()
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val original = TransactionFee.Single(
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.isRight()).isTrue()
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val fee = result.getOrNull().requireAs<TransactionFee.Single>()
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assertGasLimitIncreased(
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patched = fee.normal,
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expectedGasLimit = BigInteger("29400"),
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expectedValue = BigDecimal("0.00294"),
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)
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}
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@Test
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fun `compiled tx is returned unchanged even when fee is ethereum`() = runTest {
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// Given
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val txData = mockk<TransactionData.Compiled>()
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val original = TransactionFee.Single(
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.getOrNull()).isEqualTo(original)
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}
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@Test
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fun `non ethereum extras returns fee unchanged`() = runTest {
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// Given
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val extras = mockk<TransactionExtras>()
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val txData = uncompiledTransactionData(extras)
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val original = TransactionFee.Single(
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.getOrNull()).isEqualTo(original)
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}
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@Test
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fun `non yield supply call data returns fee unchanged`() = runTest {
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// Given
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val extras = EthereumTransactionExtras(callData = mockk<SmartContractCallData>())
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val txData = uncompiledTransactionData(extras)
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val original = TransactionFee.Single(
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.getOrNull()).isEqualTo(original)
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}
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@Test
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fun `yield supply with non ethereum fee returns fee unchanged`() = runTest {
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// Given — call data matches, but the fee is not Fee.Ethereum
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val txData = yieldSupplyTransactionData()
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val nonEthFee = Fee.Common(amount = stubAmount(BigDecimal("0.5")))
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val original = TransactionFee.Single(normal = nonEthFee)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then — gas-limit logic is a no-op for non-Ethereum fees
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val fee = result.getOrNull().requireAs<TransactionFee.Single>()
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assertThat(fee.normal).isEqualTo(nonEthFee)
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}
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@Test
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fun `yield supply with token currency fee surfaces as DataError`() = runTest {
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// Given — increaseGasLimitBy throws for Fee.Ethereum.TokenCurrency (handled in [REDACTED_TASK_KEY])
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val txData = yieldSupplyTransactionData()
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val tokenFee = Fee.Ethereum.TokenCurrency(
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amount = stubAmount(BigDecimal("0.0021")),
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gasLimit = BigInteger("21000"),
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coinPriceInToken = BigInteger("1000"),
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feeTransferGasLimit = BigInteger("60000"),
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baseGas = BigInteger("21000"),
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)
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val original = TransactionFee.Single(normal = tokenFee)
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coEvery { walletManager.getFee(txData) } returns Result.Success(original)
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// When
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val result = useCase(userWallet, network, txData)
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// Then — the thrown error is caught and mapped to DataError
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assertThat(result.isLeft()).isTrue()
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assertThat(result.leftOrNull()).isInstanceOf(GetFeeError.DataError::class.java)
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}
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// endregion
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// region invoke(userWallet, network, transactionData) — error / null / exception handling
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@Test
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fun `result failure is mapped to fee error`() = runTest {
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// Given
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val txData = yieldSupplyTransactionData()
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val failure = Result.Failure(BlockchainSdkError.Tron.AccountActivationError(code = 1))
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coEvery { walletManager.getFee(txData) } returns failure
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.isLeft()).isTrue()
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assertThat(result.leftOrNull()).isEqualTo(GetFeeError.BlockchainErrors.TronActivationError)
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}
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@Test
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fun `null wallet manager produces DataError`() = runTest {
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// Given
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val txData = yieldSupplyTransactionData()
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coEvery { walletManagersFacade.getOrCreateWalletManager(userWalletId, network) } returns null
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.isLeft()).isTrue()
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val error = result.leftOrNull().requireAs<GetFeeError.DataError>()
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assertThat(error.cause?.message).isEqualTo("Fee is null")
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}
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@Test
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fun `exception in getFee produces DataError`() = runTest {
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// Given
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val txData = yieldSupplyTransactionData()
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val boom = IllegalStateException("boom")
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coEvery { walletManager.getFee(txData) } throws boom
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// When
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val result = useCase(userWallet, network, txData)
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// Then
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assertThat(result.isLeft()).isTrue()
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val error = result.leftOrNull().requireAs<GetFeeError.DataError>()
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assertThat(error.cause).isEqualTo(boom)
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}
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@Test
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fun `demo cold card routes through wallet manager for first overload`() = runTest {
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// Given
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val coldWallet = mockk<UserWallet.Cold>()
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every { coldWallet.walletId } returns userWalletId
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every { coldWallet.scanResponse.card.cardId } returns "DEMO_CARD"
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every { demoConfig.isDemoCardId("DEMO_CARD") } returns true
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// DemoTransactionSender may access walletManager.wallet.blockchain when producing stub fees
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val demoWallet = mockk<com.tangem.blockchain.common.Wallet>(relaxed = true)
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every { demoWallet.blockchain } returns com.tangem.blockchain.common.Blockchain.Ethereum
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every { walletManager.wallet } returns demoWallet
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val txData = yieldSupplyTransactionData()
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// When
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useCase(coldWallet, network, txData)
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// Then — demo sender is built from a wallet manager obtained via the facade
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coVerify { walletManagersFacade.getOrCreateWalletManager(userWalletId, network) }
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}
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// endregion
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// region invoke(amount, destination, userWallet, cryptoCurrency)
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@Test
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fun `second overload converts coin to amount and returns fee`() = runTest {
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// Given
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val coin = mockk<CryptoCurrency.Coin>()
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every { coin.network } returns network
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every { coin.symbol } returns "ETH"
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every { coin.decimals } returns 18
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val expectedFee = TransactionFee.Single(
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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)
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val amountSlot = slot<Amount>()
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coEvery {
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walletManagersFacade.getFee(
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amount = capture(amountSlot),
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destination = "dest",
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userWalletId = userWalletId,
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network = network,
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)
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} returns Result.Success(expectedFee)
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// When
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val result = useCase.invoke(
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amount = BigDecimal("1.5"),
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destination = "dest",
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userWallet = userWallet,
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cryptoCurrency = coin,
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)
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// Then
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assertThat(result.getOrNull()).isEqualTo(expectedFee)
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val captured = amountSlot.captured
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assertThat(captured.type).isEqualTo(AmountType.Coin)
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assertThat(captured.currencySymbol).isEqualTo("ETH")
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assertThat(captured.decimals).isEqualTo(18)
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assertThat(captured.value).isEqualTo(BigDecimal("1.5"))
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}
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@Test
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fun `second overload converts token to amount with token type`() = runTest {
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// Given
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val token = mockk<CryptoCurrency.Token>()
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every { token.network } returns network
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every { token.symbol } returns "USDC"
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every { token.decimals } returns 6
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every { token.contractAddress } returns "0xUSDC"
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val expectedFee = TransactionFee.Single(
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normal = eip1559Fee(gasLimit = BigInteger("21000"), value = BigDecimal("0.0021")),
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)
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val amountSlot = slot<Amount>()
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coEvery {
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walletManagersFacade.getFee(
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amount = capture(amountSlot),
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destination = "dest",
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userWalletId = userWalletId,
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network = network,
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)
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} returns Result.Success(expectedFee)
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// When
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val result = useCase.invoke(
|
||||
amount = BigDecimal("100"),
|
||||
destination = "dest",
|
||||
userWallet = userWallet,
|
||||
cryptoCurrency = token,
|
||||
)
|
||||
|
||||
// Then
|
||||
assertThat(result.getOrNull()).isEqualTo(expectedFee)
|
||||
val captured = amountSlot.captured
|
||||
val type = captured.type.requireAs<AmountType.Token>()
|
||||
assertThat(type.token.contractAddress).isEqualTo("0xUSDC")
|
||||
assertThat(type.token.symbol).isEqualTo("USDC")
|
||||
assertThat(type.token.decimals).isEqualTo(6)
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `second overload maps result failure to fee error`() = runTest {
|
||||
// Given
|
||||
val coin = mockk<CryptoCurrency.Coin>()
|
||||
every { coin.network } returns network
|
||||
every { coin.symbol } returns "KAS"
|
||||
every { coin.decimals } returns 8
|
||||
|
||||
coEvery {
|
||||
walletManagersFacade.getFee(
|
||||
amount = any(),
|
||||
destination = any(),
|
||||
userWalletId = userWalletId,
|
||||
network = network,
|
||||
)
|
||||
} returns Result.Failure(BlockchainSdkError.Kaspa.ZeroUtxoError)
|
||||
|
||||
// When
|
||||
val result = useCase.invoke(
|
||||
amount = BigDecimal("1"),
|
||||
destination = "dest",
|
||||
userWallet = userWallet,
|
||||
cryptoCurrency = coin,
|
||||
)
|
||||
|
||||
// Then
|
||||
assertThat(result.leftOrNull()).isEqualTo(GetFeeError.BlockchainErrors.KaspaZeroUtxo)
|
||||
}
|
||||
|
||||
@Test
|
||||
fun `second overload null fee produces DataError`() = runTest {
|
||||
// Given
|
||||
val coin = mockk<CryptoCurrency.Coin>()
|
||||
every { coin.network } returns network
|
||||
every { coin.symbol } returns "ETH"
|
||||
every { coin.decimals } returns 18
|
||||
|
||||
coEvery {
|
||||
walletManagersFacade.getFee(
|
||||
amount = any(),
|
||||
destination = any(),
|
||||
userWalletId = userWalletId,
|
||||
network = network,
|
||||
)
|
||||
} returns null
|
||||
|
||||
// When
|
||||
val result = useCase.invoke(
|
||||
amount = BigDecimal("1"),
|
||||
destination = "dest",
|
||||
userWallet = userWallet,
|
||||
cryptoCurrency = coin,
|
||||
)
|
||||
|
||||
// Then
|
||||
val error = result.leftOrNull().requireAs<GetFeeError.DataError>()
|
||||
assertThat(error.cause?.message).isEqualTo("Fee is null")
|
||||
}
|
||||
|
||||
// endregion
|
||||
|
||||
// region helpers
|
||||
|
||||
private fun yieldSupplyTransactionData(): TransactionData.Uncompiled {
|
||||
val callData = mockk<EthereumYieldSupplySendCallData>()
|
||||
return uncompiledTransactionData(EthereumTransactionExtras(callData = callData))
|
||||
}
|
||||
|
||||
private fun uncompiledTransactionData(extras: TransactionExtras): TransactionData.Uncompiled {
|
||||
return TransactionData.Uncompiled(
|
||||
amount = stubAmount(BigDecimal.ONE),
|
||||
fee = null,
|
||||
sourceAddress = "src",
|
||||
destinationAddress = "dest",
|
||||
extras = extras,
|
||||
)
|
||||
}
|
||||
|
||||
private fun eip1559Fee(gasLimit: BigInteger, value: BigDecimal): Fee.Ethereum.EIP1559 {
|
||||
return Fee.Ethereum.EIP1559(
|
||||
amount = stubAmount(value),
|
||||
gasLimit = gasLimit,
|
||||
maxFeePerGas = BigInteger("50000000000"),
|
||||
priorityFee = BigInteger("1000000000"),
|
||||
)
|
||||
}
|
||||
|
||||
private fun legacyFee(gasLimit: BigInteger, value: BigDecimal): Fee.Ethereum.Legacy {
|
||||
return Fee.Ethereum.Legacy(
|
||||
amount = stubAmount(value),
|
||||
gasLimit = gasLimit,
|
||||
gasPrice = BigInteger("50000000000"),
|
||||
)
|
||||
}
|
||||
|
||||
private fun stubAmount(value: BigDecimal): Amount = Amount(
|
||||
currencySymbol = "ETH",
|
||||
value = value,
|
||||
decimals = 18,
|
||||
type = AmountType.Coin,
|
||||
)
|
||||
|
||||
private fun assertGasLimitIncreased(patched: Fee, expectedGasLimit: BigInteger, expectedValue: BigDecimal) {
|
||||
val eth = patched.requireAs<Fee.Ethereum>()
|
||||
assertThat(eth.gasLimit).isEqualTo(expectedGasLimit)
|
||||
val actualValue = requireNotNull(eth.amount.value) { "Fee amount value must not be null" }
|
||||
assertThat(actualValue.compareTo(expectedValue)).isEqualTo(0)
|
||||
}
|
||||
|
||||
private inline fun <reified T> Any?.requireAs(): T {
|
||||
val value = this
|
||||
assertThat(value).isInstanceOf(T::class.java)
|
||||
return value as T
|
||||
}
|
||||
|
||||
// endregion
|
||||
}
|
||||
|
|
@ -6,7 +6,7 @@ import java.math.BigInteger
|
|||
import java.math.RoundingMode
|
||||
|
||||
private val HUNDRED_PERCENT = 100.toBigInteger() // base 100%
|
||||
val INCREASE_GAS_LIMIT_FOR_SUPPLY = 140.toBigInteger() // 20% increase
|
||||
val INCREASE_GAS_LIMIT_FOR_SUPPLY = 140.toBigInteger() // 40% increase [there is also in GetFeeUseCase]
|
||||
|
||||
fun Fee.fixFee(cryptoCurrency: CryptoCurrency, gasLimit: BigInteger): Fee = when (this) {
|
||||
is Fee.Ethereum.Legacy -> copy(
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue