caver-js/test/packages/caver.transaction/feeDelegatedValueTransferMemoWithRatio.js

caver-js is a JavaScript API library that allows developers to interact with a Kaia node

/*
    Copyright 2020 The caver-js Authors
    This file is part of the caver-js library.

    The caver-js library is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    The caver-js library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with the caver-js. If not, see <http://www.gnu.org/licenses/>.
*/

const chai = require('chai')
const sinon = require('sinon')
const sinonChai = require('sinon-chai')
const chaiAsPromised = require('chai-as-promised')

const RLP = require('eth-lib/lib/rlp')

chai.use(chaiAsPromised)
chai.use(sinonChai)

const expect = chai.expect

const { propertiesForUnnecessary } = require('../utils')

const testRPCURL = require('../../testrpc')
const Caver = require('../../../index')
const Keyring = require('../../../packages/caver-wallet/src/keyring/keyringFactory')
const SingleKeyring = require('../../../packages/caver-wallet/src/keyring/singleKeyring')
const TransactionHasher = require('../../../packages/caver-transaction/src/transactionHasher/transactionHasher')

const { generateRoleBasedKeyring, checkSignature, checkFeePayerSignature } = require('../utils')

let caver
let sender
let testKeyring
let roleBasedKeyring

const txWithExpectedValues = {}

const sandbox = sinon.createSandbox()

before(() => {
    caver = new Caver(testRPCURL)

    sender = caver.wallet.add(caver.wallet.keyring.generate())
    testKeyring = caver.wallet.add(caver.wallet.keyring.generate())
    roleBasedKeyring = generateRoleBasedKeyring([3, 3, 3])

    txWithExpectedValues.tx = {
        from: '0xa94f5374Fce5edBC8E2a8697C15331677e6EbF0B',
        to: '0x7b65B75d204aBed71587c9E519a89277766EE1d0',
        value: '0xa',
        input: '0x68656c6c6f',
        gas: '0xf4240',
        gasPrice: '0x19',
        feeRatio: 30,
        chainId: '0x1',
        nonce: 1234,
        signatures: [
            [
                '0x26',
                '0x769f0afdc310289f9b24decb5bb765c8d7a87a6a4ae28edffb8b7085bbd9bc78',
                '0x6a7b970eea026e60ac29bb52aee10661a4222e6bdcdfb3839a80586e584586b4',
            ],
        ],
        feePayer: '0x5A0043070275d9f6054307Ee7348bD660849D90f',
        feePayerSignatures: [
            [
                '0x25',
                '0xc1c54bdc72ce7c08821329bf50542535fac74f4bba5de5b7881118a461d52834',
                '0x3a3a64878d784f9af91c2e3ab9c90f17144c47cfd9951e3588c75063c0649ecd',
            ],
        ],
    }
    txWithExpectedValues.rlpEncodingForSigning =
        '0xf842b83df83b128204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6f1e018080'
    txWithExpectedValues.rlpEncodingForFeePayerSigning =
        '0xf857b83df83b128204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6f1e945a0043070275d9f6054307ee7348bd660849d90f018080'
    txWithExpectedValues.senderTxHash = '0x2c4e8cd3c68a4aacae51c695e857cfc1a019037ca71d8cd1e8ca56ec4eaf55b1'
    txWithExpectedValues.transactionHash = '0xabcb0fd8ebb8f62ac899e5211b9ba47fe948a8efd815229cc4ed9cd781464f15'
    txWithExpectedValues.rlpEncoding =
        '0x12f8dd8204d219830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94a94f5374fce5edbc8e2a8697c15331677e6ebf0b8568656c6c6f1ef845f84326a0769f0afdc310289f9b24decb5bb765c8d7a87a6a4ae28edffb8b7085bbd9bc78a06a7b970eea026e60ac29bb52aee10661a4222e6bdcdfb3839a80586e584586b4945a0043070275d9f6054307ee7348bd660849d90ff845f84325a0c1c54bdc72ce7c08821329bf50542535fac74f4bba5de5b7881118a461d52834a03a3a64878d784f9af91c2e3ab9c90f17144c47cfd9951e3588c75063c0649ecd'
})

describe('TxTypeFeeDelegatedValueTransferMemoWithRatio', () => {
    let transactionObj
    let getGasPriceSpy
    let getHeaderSpy
    let getNonceSpy
    let getChainIdSpy
    beforeEach(() => {
        transactionObj = {
            from: sender.address,
            to: testKeyring.address,
            value: 1,
            input: '0x68656c6c6f',
            gas: '0x3b9ac9ff',
            feeRatio: 30,
        }

        getGasPriceSpy = sandbox.stub(caver.transaction.klaytnCall, 'getGasPrice')
        getGasPriceSpy.returns('0x5d21dba00')
        getHeaderSpy = sandbox.stub(caver.transaction.klaytnCall, 'getHeaderByNumber')
        getHeaderSpy.returns({ baseFeePerGas: '0x5d21dba00' })
        getNonceSpy = sandbox.stub(caver.transaction.klaytnCall, 'getTransactionCount')
        getNonceSpy.returns('0x3a')
        getChainIdSpy = sandbox.stub(caver.transaction.klaytnCall, 'getChainId')
        getChainIdSpy.returns('0x7e3')
    })

    afterEach(() => {
        sandbox.restore()
    })

    context('create feeDelegatedValueTransferMemoWithRatio instance', () => {
        it('CAVERJS-UNIT-TRANSACTIONFDR-076: If feeDelegatedValueTransferMemoWithRatio not define from, return error', () => {
            delete transactionObj.from

            const expectedError = '"from" is missing'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-077: If feeDelegatedValueTransferMemoWithRatio not define to, return error', () => {
            delete transactionObj.to

            const expectedError = '"to" is missing'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-078: If feeDelegatedValueTransferMemoWithRatio not define value, return error', () => {
            delete transactionObj.value

            const expectedError = '"value" is missing'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-079: If feeDelegatedValueTransferMemoWithRatio not define gas, return error', () => {
            delete transactionObj.gas

            const expectedError = '"gas" is missing'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-080: If feeDelegatedValueTransferMemoWithRatio not define input, return error', () => {
            delete transactionObj.input

            const expectedError = '"input" is missing'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-081: If feeDelegatedValueTransferMemoWithRatio not define feeRatio, return error', () => {
            delete transactionObj.feeRatio

            const expectedError = '"feeRatio" is missing'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-082: If feeDelegatedValueTransferMemoWithRatio define from property with invalid address, return error', () => {
            transactionObj.from = 'invalid'

            const expectedError = `Invalid address of from: ${transactionObj.from}`
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-083: If feeDelegatedValueTransferMemoWithRatio define feePayer property with invalid address, return error', () => {
            transactionObj.feePayer = 'invalid'

            const expectedError = `Invalid address of fee payer: ${transactionObj.feePayer}`
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-084: If feeDelegatedValueTransferMemoWithRatio define to property with invalid address, return error', () => {
            transactionObj.to = 'invalid address'

            const expectedError = `Invalid address of to: ${transactionObj.to}`
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-526: If feeDelegatedValueTransferMemoWithRatio define feeRatio property with invalid value, return error', () => {
            transactionObj.feeRatio = 'nonHexString'
            let expectedError = `Invalid type fo feeRatio: feeRatio should be number type or hex number string.`
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)

            transactionObj.feeRatio = {}
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)

            transactionObj.feeRatio = []
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)

            transactionObj.feeRatio = 0
            expectedError = `Invalid feeRatio: feeRatio is out of range. [1, 99]`
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)

            transactionObj.feeRatio = 100
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)

            transactionObj.feeRatio = -1
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)

            transactionObj.feeRatio = 101
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-085: If feeDelegatedValueTransferMemoWithRatio define feePayerSignatures property without feePayer, return error', () => {
            transactionObj.feePayerSignatures = [
                [
                    '0x26',
                    '0xf45cf8d7f88c08e6b6ec0b3b562f34ca94283e4689021987abb6b0772ddfd80a',
                    '0x298fe2c5aeabb6a518f4cbb5ff39631a5d88be505d3923374f65fdcf63c2955b',
                ],
            ]

            const expectedError = '"feePayer" is missing: feePayer must be defined with feePayerSignatures.'
            expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-086: If feeDelegatedValueTransferMemoWithRatio define unnecessary property, return error', () => {
            const unnecessaries = [
                propertiesForUnnecessary.codeFormat,
                propertiesForUnnecessary.failKey,
                propertiesForUnnecessary.account,
                propertiesForUnnecessary.key,
                propertiesForUnnecessary.legacyKey,
                propertiesForUnnecessary.publicKey,
                propertiesForUnnecessary.failKey,
                propertiesForUnnecessary.multisig,
                propertiesForUnnecessary.roleTransactionKey,
                propertiesForUnnecessary.roleAccountUpdateKey,
                propertiesForUnnecessary.roleFeePayerKey,
                propertiesForUnnecessary.humanReadable,
                propertiesForUnnecessary.accessList,
                propertiesForUnnecessary.maxPriorityFeePerGas,
                propertiesForUnnecessary.maxFeePerGas,
            ]

            for (let i = 0; i < unnecessaries.length; i++) {
                if (i > 0) delete transactionObj[unnecessaries[i - 1].name]
                transactionObj[unnecessaries[i].name] = unnecessaries[i].value

                const expectedError = `"${unnecessaries[i].name}" cannot be used with ${caver.transaction.type.TxTypeFeeDelegatedValueTransferMemoWithRatio} transaction`
                expect(() => caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)).to.throw(expectedError)
            }
        })
    })

    context('feeDelegatedValueTransferMemoWithRatio.getRLPEncoding', () => {
        it('CAVERJS-UNIT-TRANSACTIONFDR-087: Returns RLP-encoded string', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(txWithExpectedValues.tx)

            expect(tx.getRLPEncoding()).to.equal(txWithExpectedValues.rlpEncoding)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-088: getRLPEncoding should throw error when nonce is undefined', () => {
            transactionObj.chainId = 2019
            transactionObj.gasPrice = '0x5d21dba00'
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const expectedError = `nonce is undefined. Define nonce in transaction or use 'transaction.fillTransaction' to fill values.`

            expect(() => tx.getRLPEncoding()).to.throw(expectedError)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-089: getRLPEncoding should throw error when gasPrice is undefined', () => {
            transactionObj.chainId = 2019
            transactionObj.nonce = '0x3a'
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const expectedError = `gasPrice is undefined. Define gasPrice in transaction or use 'transaction.fillTransaction' to fill values.`

            expect(() => tx.getRLPEncoding()).to.throw(expectedError)
        })
    })

    context('feeDelegatedValueTransferMemoWithRatio.sign', () => {
        const txHash = '0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550'

        let fillTransactionSpy
        let createFromPrivateKeySpy
        let senderSignSpy
        let appendSignaturesSpy
        let hasherSpy
        let tx

        beforeEach(() => {
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            fillTransactionSpy = sandbox.spy(tx, 'fillTransaction')
            createFromPrivateKeySpy = sandbox.spy(Keyring, 'createFromPrivateKey')
            senderSignSpy = sandbox.spy(sender, 'sign')
            appendSignaturesSpy = sandbox.spy(tx, 'appendSignatures')
            hasherSpy = sandbox.stub(TransactionHasher, 'getHashForSignature')
            hasherSpy.returns(txHash)
        })

        afterEach(() => {
            sandbox.restore()
        })

        function checkFunctionCall(customHasher = false) {
            expect(fillTransactionSpy).to.have.been.calledOnce
            expect(appendSignaturesSpy).to.have.been.calledOnce
            if (!customHasher) expect(hasherSpy).to.have.been.calledWith(tx)
        }

        it('CAVERJS-UNIT-TRANSACTIONFDR-091: input: keyring. should sign transaction.', async () => {
            await tx.sign(sender)

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignSpy).to.have.been.calledWith(txHash, '0x7e3', 0, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-092: input: private key string. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.sign(sender.key.privateKey)

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 0, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-093: input: KlaytnWalletKey. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.sign(sender.getKlaytnWalletKey())

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 0, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-094: input: keyring, index. should sign transaction with specific index.', async () => {
            const roleBasedSignSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.from = roleBasedKeyring.address

            await tx.sign(roleBasedKeyring, 1)

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignSpy).to.have.been.calledWith(txHash, '0x7e3', 0, 1)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-095: input: keyring, custom hasher. should use custom hasher.', async () => {
            const hashForCustomHasher = '0x9e4b4835f6ea5ce55bd1037fe92040dd070af6154aefc30d32c65364a1123cae'
            const customHasher = () => hashForCustomHasher

            await tx.sign(sender, customHasher)

            checkFunctionCall(true)
            checkSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignSpy).to.have.been.calledWith(hashForCustomHasher, '0x7e3', 0, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-096: input: keyring, index, custom hasher. should use custom hasher when sign transaction.', async () => {
            const hashForCustomHasher = '0x9e4b4835f6ea5ce55bd1037fe92040dd070af6154aefc30d32c65364a1123cae'
            const customHasher = () => hashForCustomHasher

            const roleBasedSignSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.from = roleBasedKeyring.address

            await tx.sign(roleBasedKeyring, 1, customHasher)

            checkFunctionCall(true)
            checkSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignSpy).to.have.been.calledWith(hashForCustomHasher, '0x7e3', 0, 1)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-097: input: keyring. should throw error when from is different.', async () => {
            transactionObj.from = roleBasedKeyring.address
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const expectedError = `The from address of the transaction is different with the address of the keyring to use.`
            await expect(tx.sign(sender)).to.be.rejectedWith(expectedError)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-098: input: rolebased keyring, index out of range. should throw error.', async () => {
            transactionObj.from = roleBasedKeyring.address
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const expectedError = `Invalid index(10): index must be less than the length of keys(${roleBasedKeyring.keys[0].length}).`
            await expect(tx.sign(roleBasedKeyring, 10)).to.be.rejectedWith(expectedError)
        }).timeout(200000)
    })

    context('feeDelegatedValueTransferMemoWithRatio.signAsFeePayer', () => {
        const txHash = '0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550'

        let fillTransactionSpy
        let createFromPrivateKeySpy
        let senderSignSpy
        let appendSignaturesSpy
        let hasherSpy
        let tx

        beforeEach(() => {
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)
            tx.feePayer = sender.address

            fillTransactionSpy = sandbox.spy(tx, 'fillTransaction')
            createFromPrivateKeySpy = sandbox.spy(Keyring, 'createFromPrivateKey')
            senderSignSpy = sandbox.spy(sender, 'sign')
            appendSignaturesSpy = sandbox.spy(tx, 'appendFeePayerSignatures')
            hasherSpy = sandbox.stub(TransactionHasher, 'getHashForFeePayerSignature')
            hasherSpy.returns(txHash)
        })

        afterEach(() => {
            sandbox.restore()
        })

        function checkFunctionCall(customHasher = false) {
            expect(fillTransactionSpy).to.have.been.calledOnce
            expect(appendSignaturesSpy).to.have.been.calledOnce
            if (!customHasher) expect(hasherSpy).to.have.been.calledWith(tx)
        }

        it('CAVERJS-UNIT-TRANSACTIONFDR-099: input: keyring. If feePayer is not defined, should be set with keyring address.', async () => {
            tx.feePayer = '0x'
            await tx.signAsFeePayer(sender)

            expect(tx.feePayer.toLowerCase()).to.equal(sender.address.toLowerCase())
            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignSpy).to.have.been.calledWith(txHash, '0x7e3', 2, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-100: input: keyring. should sign transaction.', async () => {
            await tx.signAsFeePayer(sender)

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignSpy).to.have.been.calledWith(txHash, '0x7e3', 2, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-101: input: private key string. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.signAsFeePayer(sender.key.privateKey)

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 2, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-102: input: KlaytnWalletKey. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.signAsFeePayer(sender.getKlaytnWalletKey())

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 2, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-103: input: keyring, index. should sign transaction with specific index.', async () => {
            const roleBasedSignSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.feePayer = roleBasedKeyring.address

            await tx.signAsFeePayer(roleBasedKeyring, 1)

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignSpy).to.have.been.calledWith(txHash, '0x7e3', 2, 1)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-104: input: keyring, custom hasher. should use custom hasher.', async () => {
            const hashForCustomHasher = '0x9e4b4835f6ea5ce55bd1037fe92040dd070af6154aefc30d32c65364a1123cae'
            const customHasher = () => hashForCustomHasher

            const roleBasedSignSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.feePayer = roleBasedKeyring.address
            await tx.signAsFeePayer(roleBasedKeyring, customHasher)

            checkFunctionCall(true)
            checkFeePayerSignature(tx, { expectedLength: roleBasedKeyring.keys[2].length })
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignSpy).to.have.been.calledWith(hashForCustomHasher, '0x7e3', 2, undefined)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-105: input: keyring, index, custom hasher. should use custom hasher when sign transaction.', async () => {
            const hashForCustomHasher = '0x9e4b4835f6ea5ce55bd1037fe92040dd070af6154aefc30d32c65364a1123cae'
            const customHasher = () => hashForCustomHasher

            const roleBasedSignSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.feePayer = roleBasedKeyring.address

            await tx.signAsFeePayer(roleBasedKeyring, 1, customHasher)

            checkFunctionCall(true)
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignSpy).to.have.been.calledWith(hashForCustomHasher, '0x7e3', 2, 1)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-106: input: keyring. should throw error when feePayer is different.', async () => {
            tx.feePayer = roleBasedKeyring.address

            const expectedError = `The feePayer address of the transaction is different with the address of the keyring to use.`
            await expect(tx.signAsFeePayer(sender)).to.be.rejectedWith(expectedError)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-107: input: rolebased keyring, index out of range. should throw error.', async () => {
            transactionObj.from = roleBasedKeyring.address
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const expectedError = `Invalid index(10): index must be less than the length of keys(${roleBasedKeyring.keys[0].length}).`
            await expect(tx.signAsFeePayer(roleBasedKeyring, 10)).to.be.rejectedWith(expectedError)
        }).timeout(200000)
    })

    context('feeDelegatedValueTransferMemoWithRatio.sign with multiple keys', () => {
        const txHash = '0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550'

        let fillTransactionSpy
        let createFromPrivateKeySpy
        let senderSignWithKeysSpy
        let appendSignaturesSpy
        let hasherSpy
        let tx

        beforeEach(() => {
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            fillTransactionSpy = sandbox.spy(tx, 'fillTransaction')
            createFromPrivateKeySpy = sandbox.spy(Keyring, 'createFromPrivateKey')
            senderSignWithKeysSpy = sandbox.spy(sender, 'sign')
            appendSignaturesSpy = sandbox.spy(tx, 'appendSignatures')
            hasherSpy = sandbox.stub(TransactionHasher, 'getHashForSignature')
            hasherSpy.returns(txHash)
        })

        afterEach(() => {
            sandbox.restore()
        })

        function checkFunctionCall(customHasher = false) {
            expect(fillTransactionSpy).to.have.been.calledOnce
            expect(appendSignaturesSpy).to.have.been.calledOnce
            if (!customHasher) expect(hasherSpy).to.have.been.calledWith(tx)
        }

        it('CAVERJS-UNIT-TRANSACTIONFDR-108: input: keyring. should sign transaction.', async () => {
            await tx.sign(sender)

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignWithKeysSpy).to.have.been.calledWith(txHash, '0x7e3', 0)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-109: input: private key string. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.sign(sender.key.privateKey)

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 0)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-110: input: KlaytnWalletKey. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.sign(sender.getKlaytnWalletKey())

            checkFunctionCall()
            checkSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 0)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-111: input: keyring, custom hasher. should use custom hasher when sign transaction.', async () => {
            const hashForCustomHasher = '0x9e4b4835f6ea5ce55bd1037fe92040dd070af6154aefc30d32c65364a1123cae'
            const customHasher = () => hashForCustomHasher

            await tx.sign(sender, customHasher)

            checkFunctionCall(true)
            checkSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignWithKeysSpy).to.have.been.calledWith(hashForCustomHasher, '0x7e3', 0)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-112: input: keyring. should throw error when from is different.', async () => {
            transactionObj.from = roleBasedKeyring.address
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const expectedError = `The from address of the transaction is different with the address of the keyring to use.`
            await expect(tx.sign(sender)).to.be.rejectedWith(expectedError)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-113: input: roleBased keyring. should sign with multiple keys and append signatures', async () => {
            const roleBasedSignWithKeysSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.from = roleBasedKeyring.address

            await tx.sign(roleBasedKeyring)

            checkFunctionCall(true)
            checkSignature(tx, { expectedLength: roleBasedKeyring.keys[0].length })
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignWithKeysSpy).to.have.been.calledWith(txHash, '0x7e3', 0)
        }).timeout(200000)
    })

    context('feeDelegatedValueTransferMemoWithRatio.signAsFeePayer with multiple keys', () => {
        const txHash = '0xe9a11d9ef95fb437f75d07ce768d43e74f158dd54b106e7d3746ce29d545b550'

        let fillTransactionSpy
        let createFromPrivateKeySpy
        let senderSignWithKeysSpy
        let appendSignaturesSpy
        let hasherSpy
        let tx

        beforeEach(() => {
            tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            fillTransactionSpy = sandbox.spy(tx, 'fillTransaction')
            createFromPrivateKeySpy = sandbox.spy(Keyring, 'createFromPrivateKey')
            senderSignWithKeysSpy = sandbox.spy(sender, 'sign')
            appendSignaturesSpy = sandbox.spy(tx, 'appendFeePayerSignatures')
            hasherSpy = sandbox.stub(TransactionHasher, 'getHashForFeePayerSignature')
            hasherSpy.returns(txHash)
        })

        afterEach(() => {
            sandbox.restore()
        })

        function checkFunctionCall(customHasher = false) {
            expect(fillTransactionSpy).to.have.been.calledOnce
            expect(appendSignaturesSpy).to.have.been.calledOnce
            if (!customHasher) expect(hasherSpy).to.have.been.calledWith(tx)
        }

        it('CAVERJS-UNIT-TRANSACTIONFDR-114: input: keyring. If feePayer is not defined, should be set with keyring address.', async () => {
            tx.feePayer = '0x'
            await tx.signAsFeePayer(sender)

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignWithKeysSpy).to.have.been.calledWith(txHash, '0x7e3', 2)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-115: input: keyring. should sign transaction.', async () => {
            await tx.signAsFeePayer(sender)

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignWithKeysSpy).to.have.been.calledWith(txHash, '0x7e3', 2)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-116: input: private key string. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.signAsFeePayer(sender.key.privateKey)

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 2)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-117: input: KlaytnWalletKey. should sign transaction.', async () => {
            const signProtoSpy = sandbox.spy(SingleKeyring.prototype, 'sign')
            await tx.signAsFeePayer(sender.getKlaytnWalletKey())

            checkFunctionCall()
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).to.have.been.calledOnce
            expect(signProtoSpy).to.have.been.calledWith(txHash, '0x7e3', 2)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-118: input: keyring, custom hasher. should use custom hasher when sign transaction.', async () => {
            const hashForCustomHasher = '0x9e4b4835f6ea5ce55bd1037fe92040dd070af6154aefc30d32c65364a1123cae'
            const customHasher = () => hashForCustomHasher

            await tx.signAsFeePayer(sender, customHasher)

            checkFunctionCall(true)
            checkFeePayerSignature(tx)
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(senderSignWithKeysSpy).to.have.been.calledWith(hashForCustomHasher, '0x7e3', 2)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-119: input: keyring. should throw error when feePayer is different.', async () => {
            tx.feePayer = roleBasedKeyring.address

            const expectedError = `The feePayer address of the transaction is different with the address of the keyring to use.`
            await expect(tx.signAsFeePayer(sender)).to.be.rejectedWith(expectedError)
        }).timeout(200000)

        it('CAVERJS-UNIT-TRANSACTIONFDR-120: input: roleBased keyring. should sign with multiple keys and append signatures', async () => {
            const roleBasedSignWithKeysSpy = sandbox.spy(roleBasedKeyring, 'sign')

            tx.feePayer = roleBasedKeyring.address

            await tx.signAsFeePayer(roleBasedKeyring)

            checkFunctionCall(true)
            checkFeePayerSignature(tx, { expectedLength: roleBasedKeyring.keys[2].length })
            expect(createFromPrivateKeySpy).not.to.have.been.calledOnce
            expect(roleBasedSignWithKeysSpy).to.have.been.calledWith(txHash, '0x7e3', 2)
        }).timeout(200000)
    })

    context('feeDelegatedValueTransferMemoWithRatio.appendSignatures', () => {
        afterEach(() => {
            sandbox.restore()
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-121: If signatures is empty, appendSignatures append signatures in transaction', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                '0x0fea',
                '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
            ]
            tx.appendSignatures(sig)
            checkSignature(tx)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-122: If signatures is empty, appendSignatures append signatures with two-dimensional signature array', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                [
                    '0x0fea',
                    '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                    '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
                ],
            ]
            tx.appendSignatures(sig)
            checkSignature(tx)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-123: If signatures is not empty, appendSignatures should append signatures', () => {
            transactionObj.signatures = [
                '0x0fea',
                '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
            ]
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                '0x0fea',
                '0x7a5011b41cfcb6270af1b5f8aeac8aeabb1edb436f028261b5add564de694700',
                '0x23ac51660b8b421bf732ef8148d0d4f19d5e29cb97be6bccb5ae505ebe89eb4a',
            ]

            tx.appendSignatures(sig)
            checkSignature(tx, { expectedLength: 2 })
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-124: appendSignatures should append multiple signatures', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                [
                    '0x0fea',
                    '0xbde66cceed35a576010966338b7ded961f2c160c96f928e193b47aaf4480aa07',
                    '0x546eb193ec138523b7fd34c4f12a1a04d0f74470e8f3bbe91ce0b4ec16e7f0d2',
                ],
                [
                    '0x0fea',
                    '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                    '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
                ],
            ]

            tx.appendSignatures(sig)
            checkSignature(tx, { expectedLength: 2 })
        })
    })

    context('feeDelegatedValueTransferMemoWithRatio.appendFeePayerSignatures', () => {
        beforeEach(() => {
            transactionObj.feePayer = '0x90b3e9a3770481345a7f17f22f16d020bccfd33e'
        })
        afterEach(() => {
            sandbox.restore()
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-125: If feePayerSignatures is empty, appendFeePayerSignatures append feePayerSignatures in transaction', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                '0x0fea',
                '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
            ]
            tx.appendFeePayerSignatures(sig)
            checkFeePayerSignature(tx)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-126: If feePayerSignatures is empty, appendFeePayerSignatures append feePayerSignatures with two-dimensional signature array', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                [
                    '0x0fea',
                    '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                    '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
                ],
            ]
            tx.appendFeePayerSignatures(sig)
            checkFeePayerSignature(tx)
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-127: If feePayerSignatures is not empty, appendFeePayerSignatures should append feePayerSignatures', () => {
            transactionObj.feePayerSignatures = [
                '0x0fea',
                '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
            ]
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                '0x0fea',
                '0x7a5011b41cfcb6270af1b5f8aeac8aeabb1edb436f028261b5add564de694700',
                '0x23ac51660b8b421bf732ef8148d0d4f19d5e29cb97be6bccb5ae505ebe89eb4a',
            ]

            tx.appendFeePayerSignatures(sig)
            checkFeePayerSignature(tx, { expectedLength: 2 })
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-128: appendFeePayerSignatures should append multiple feePayerSignatures', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const sig = [
                [
                    '0x0fea',
                    '0xbde66cceed35a576010966338b7ded961f2c160c96f928e193b47aaf4480aa07',
                    '0x546eb193ec138523b7fd34c4f12a1a04d0f74470e8f3bbe91ce0b4ec16e7f0d2',
                ],
                [
                    '0x0fea',
                    '0xade9480f584fe481bf070ab758ecc010afa15debc33e1bd75af637d834073a6e',
                    '0x38160105d78cef4529d765941ad6637d8dcf6bd99310e165fee1c39fff2aa27e',
                ],
            ]

            tx.appendFeePayerSignatures(sig)
            checkFeePayerSignature(tx, { expectedLength: 2 })
        })
    })

    context('feeDelegatedValueTransferMemoWithRatio.combineSignedRawTransactions', () => {
        beforeEach(() => {
            transactionObj = {
                from: '0xceca418cc3ed540c8d16675fe600d703154e379f',
                to: '0x7b65b75d204abed71587c9e519a89277766ee1d0',
                value: '0xa',
                input: '0x68656c6c6f',
                gas: '0xf4240',
                feeRatio: 30,
                nonce: '0x1',
                gasPrice: '0x5d21dba00',
                chainId: '0x7e3',
            }
        })
        afterEach(() => {
            sandbox.restore()
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-129: combineSignedRawTransactions combines single signature and sets signatures in transaction', () => {
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)
            const appendSignaturesSpy = sandbox.spy(tx, 'appendSignatures')
            const getRLPEncodingSpy = sandbox.spy(tx, 'getRLPEncoding')

            const rlpEncoded =
                '0x12f8a0018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ef847f845820feaa050edf44854ee83c3ea396614796a19b9ebe4714b6fde40f52ce02b8e7a32be22a01fbbd3dd81af0eadc375e390fd468d9574a76a826cc02abe55f1d1176da4286d940000000000000000000000000000000000000000c4c3018080'
            const combined = tx.combineSignedRawTransactions([rlpEncoded])

            const expectedSignatures = [
                [
                    '0x0fea',
                    '0x50edf44854ee83c3ea396614796a19b9ebe4714b6fde40f52ce02b8e7a32be22',
                    '0x1fbbd3dd81af0eadc375e390fd468d9574a76a826cc02abe55f1d1176da4286d',
                ],
            ]

            expect(appendSignaturesSpy).to.have.been.calledOnce
            expect(getRLPEncodingSpy).to.have.been.calledOnce
            expect(combined).to.equal(rlpEncoded)
            checkSignature(tx, { expectedSignatures })
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-130: combineSignedRawTransactions combines multiple signatures and sets signatures in transaction', () => {
            transactionObj.signatures = [
                [
                    '0x0fea',
                    '0x50edf44854ee83c3ea396614796a19b9ebe4714b6fde40f52ce02b8e7a32be22',
                    '0x1fbbd3dd81af0eadc375e390fd468d9574a76a826cc02abe55f1d1176da4286d',
                ],
            ]
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const rlpEncodedStrings = [
                '0x12f88c018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ef847f845820fe9a03c5bdf4fba47ee89e3072d2c707efb241aef04cb2c7b9771bea2ffd62c2b3807a05d7be6df572fdb60f68a3250da5794a983f609991561d31a9189f0d7212de88c80c4c3018080',
                '0x12f88c018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ef847f845820feaa0f1e794e5f0a28afce80bd9a89883ed55f96a8d45b03ae8355524a0000eac8a2ea0202e179034aefcadcc7a25360c3bb88f1a572c5912e5031bac11d466ebb6727e80c4c3018080',
            ]

            const appendSignaturesSpy = sandbox.spy(tx, 'appendSignatures')
            const getRLPEncodingSpy = sandbox.spy(tx, 'getRLPEncoding')

            const combined = tx.combineSignedRawTransactions(rlpEncodedStrings)

            const expectedRLPEncoded =
                '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'

            const expectedSignatures = [
                [
                    '0x0fea',
                    '0x50edf44854ee83c3ea396614796a19b9ebe4714b6fde40f52ce02b8e7a32be22',
                    '0x1fbbd3dd81af0eadc375e390fd468d9574a76a826cc02abe55f1d1176da4286d',
                ],
                [
                    '0x0fe9',
                    '0x3c5bdf4fba47ee89e3072d2c707efb241aef04cb2c7b9771bea2ffd62c2b3807',
                    '0x5d7be6df572fdb60f68a3250da5794a983f609991561d31a9189f0d7212de88c',
                ],
                [
                    '0x0fea',
                    '0xf1e794e5f0a28afce80bd9a89883ed55f96a8d45b03ae8355524a0000eac8a2e',
                    '0x202e179034aefcadcc7a25360c3bb88f1a572c5912e5031bac11d466ebb6727e',
                ],
            ]

            expect(appendSignaturesSpy).to.have.been.callCount(rlpEncodedStrings.length)
            expect(getRLPEncodingSpy).to.have.been.calledOnce
            expect(combined).to.equal(expectedRLPEncoded)
            checkSignature(tx, { expectedSignatures })
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-131: combineSignedRawTransactions combines single feePayerSignature and sets feePayerSignatures in transaction', () => {
            transactionObj.feePayer = '0x188375ff24b14775e1c13d382c2d1ef3a27ca614'
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)
            const appendSignaturesSpy = sandbox.spy(tx, 'appendFeePayerSignatures')
            const getRLPEncodingSpy = sandbox.spy(tx, 'getRLPEncoding')

            const rlpEncoded =
                '0x12f8a0018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ec4c301808094188375ff24b14775e1c13d382c2d1ef3a27ca614f847f845820fe9a05610e0b35da77d24c009fd6040a43ee70248b60b91892611a0cf36ef185399a2a05fc451b5b9e90453e8fcdf797e1a0875746ddfe1fdcc6617a21eb8e35b328f76'
            const combined = tx.combineSignedRawTransactions([rlpEncoded])

            const expectedSignatures = [
                [
                    '0x0fe9',
                    '0x5610e0b35da77d24c009fd6040a43ee70248b60b91892611a0cf36ef185399a2',
                    '0x5fc451b5b9e90453e8fcdf797e1a0875746ddfe1fdcc6617a21eb8e35b328f76',
                ],
            ]

            expect(appendSignaturesSpy).to.have.been.calledOnce
            expect(getRLPEncodingSpy).to.have.been.calledOnce
            expect(combined).to.equal(rlpEncoded)
            checkFeePayerSignature(tx, { expectedSignatures })
        })

        it('CAVERJS-UNIT-TRANSACTIONFDR-132: combineSignedRawTransactions combines multiple feePayerSignatures and sets feePayerSignatures in transaction', () => {
            transactionObj.feePayer = '0x188375ff24b14775e1c13d382c2d1ef3a27ca614'
            transactionObj.feePayerSignatures = [
                [
                    '0x0fe9',
                    '0x5610e0b35da77d24c009fd6040a43ee70248b60b91892611a0cf36ef185399a2',
                    '0x5fc451b5b9e90453e8fcdf797e1a0875746ddfe1fdcc6617a21eb8e35b328f76',
                ],
            ]
            const tx = caver.transaction.feeDelegatedValueTransferMemoWithRatio.create(transactionObj)

            const rlpEncodedStrings = [
                '0x12f8a0018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ec4c301808094188375ff24b14775e1c13d382c2d1ef3a27ca614f847f845820feaa0defc41992109af25e9956cbe7d593cd3f65dd2bf1e8f71d7ac1799451a90c062a03487aacf56a6f5f4719e51778ac5fac00e6994b0327ffa5edf99d879116e6e5a',
                '0x12f8a0018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ec4c301808094188375ff24b14775e1c13d382c2d1ef3a27ca614f847f845820fe9a09913be30cc8b8c68fd4745f6b04ede43e272496c9245bc0784339cdff8b3c008a02e3b652fa111946ea868e29714370822220dec6c4bfabfcaf1f023df800217d2',
            ]

            const appendSignaturesSpy = sandbox.spy(tx, 'appendFeePayerSignatures')
            const getRLPEncodingSpy = sandbox.spy(tx, 'getRLPEncoding')

            const combined = tx.combineSignedRawTransactions(rlpEncodedStrings)

            const expectedRLPEncoded =
                '0x12f9012e018505d21dba00830f4240947b65b75d204abed71587c9e519a89277766ee1d00a94ceca418cc3ed540c8d16675fe600d703154e379f8568656c6c6f1ec4c301808094188375ff24b14775e1c13d382c2d1ef3a27ca614f8d5f845820fe9a05610e0b35da77d24c009fd6040a43ee70248b60b91892611a0cf36ef185399a2a05fc451b5b9e90453e8