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tx-utils - add encoding utils

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This commit is contained in:
kumavis 2017-03-07 22:51:39 -08:00
parent c063fab993
commit 92b8443824
2 changed files with 15 additions and 9 deletions
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2
app/scripts/lib/tx-utils.js
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@ -91,7 +91,7 @@ module.exports = class txProviderUtils {
// builds ethTx from txParams object
buildEthTxFromParams (txParams) {
// apply gas multiplyer
let gasPrice = new BN(ethUtil.stripHexPrefix(txParams.gasPrice), 16)
let gasPrice = hexToBn(txParams.gasPrice)
// multiply and divide by 100 so as to add percision to integer mul
txParams.gasPrice = ethUtil.intToHex(gasPrice.toNumber())
// normalize values

22
test/unit/tx-utils-test.js
View File

@ -19,8 +19,8 @@ describe('txUtils', function() {
// dummy gas limit: 0x3d4c52 (4 mil)
const blockGasLimitHex = '0x3d4c52'
const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex)
const inputBn = new BN(ethUtil.stripHexPrefix(inputHex), 'hex')
const outputBn = new BN(ethUtil.stripHexPrefix(output), 'hex')
const inputBn = hexToBn(inputHex)
const outputBn = hexToBn(output)
const expectedBn = inputBn.muln(1.5)
assert(outputBn.eq(expectedBn), 'returns 1.5 the input value')
})
@ -31,9 +31,9 @@ describe('txUtils', function() {
// dummy gas limit: 0x0f4240 (1 mil)
const blockGasLimitHex = '0x0f4240'
const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex)
const inputBn = new BN(ethUtil.stripHexPrefix(inputHex), 'hex')
const outputBn = new BN(ethUtil.stripHexPrefix(output), 'hex')
const expectedBn = new BN(ethUtil.stripHexPrefix(inputHex), 'hex')
const inputBn = hexToBn(inputHex)
const outputBn = hexToBn(output)
const expectedBn = hexToBn(inputHex)
assert(outputBn.eq(expectedBn), 'returns the original estimatedGas value')
})
@ -43,10 +43,16 @@ describe('txUtils', function() {
// dummy gas limit: 0x1e8480 (2 mil)
const blockGasLimitHex = '0x1e8480'
const output = txUtils.addGasBuffer(inputHex, blockGasLimitHex)
const inputBn = new BN(ethUtil.stripHexPrefix(inputHex), 'hex')
const outputBn = new BN(ethUtil.stripHexPrefix(output), 'hex')
const expectedBn = new BN(ethUtil.stripHexPrefix(blockGasLimitHex), 'hex')
const inputBn = hexToBn(inputHex)
const outputBn = hexToBn(output)
const expectedBn = hexToBn(blockGasLimitHex)
assert(outputBn.eq(expectedBn), 'returns the block gas limit value')
})
})
})
// util
function hexToBn(inputHex) {
return new BN(ethUtil.stripHexPrefix(inputHex), 16)
}