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const assert = require('assert')
const NonceTracker = require('../../app/scripts/lib/nonce-tracker')
const MockTxGen = require('../lib/mock-tx-gen')
describe('Nonce Tracker', function () {
let nonceTracker, provider
let getPendingTransactions, pendingTxs
let getConfirmedTransactions, confirmedTxs
let providerResultStub = {}
describe('#getNonceLock', function () {
describe('with 3 confirmed and 1 pending', function () {
beforeEach(function () {
const txGen = new MockTxGen()
confirmedTxs = txGen.generate({ status: 'confirmed' }, { count: 3 })
pendingTxs = txGen.generate({ status: 'pending' }, { count: 1 })
getPendingTransactions = () => pendingTxs
getConfirmedTransactions = () => confirmedTxs
providerResultStub.result = '0x3'
provider = {
sendAsync: (_, cb) => { cb(undefined, providerResultStub) },
_blockTracker: {
getCurrentBlock: () => '0x11b568',
},
}
nonceTracker = new NonceTracker({
provider,
getPendingTransactions,
getConfirmedTransactions,
})
})
it('should work', async function () {
this.timeout(15000)
const nonceLock = await nonceTracker.getNonceLock('0x7d3517b0d011698406d6e0aed8453f0be2697926')
assert.equal(nonceLock.nextNonce, '4', 'nonce should be 4')
await nonceLock.releaseLock()
})
it('should use localNonce if network returns a nonce lower then a confirmed tx in state', async function () {
this.timeout(15000)
providerResultStub.result = '0x1'
const nonceLock = await nonceTracker.getNonceLock('0x7d3517b0d011698406d6e0aed8453f0be2697926')
assert.equal(nonceLock.nextNonce, '4', 'nonce should be 4')
await nonceLock.releaseLock()
})
})
describe('with no previous txs', function () {
beforeEach(function () {
getPendingTransactions = () => []
getConfirmedTransactions = () => []
providerResultStub.result = '0x0'
provider = {
sendAsync: (_, cb) => { cb(undefined, providerResultStub) },
_blockTracker: {
getCurrentBlock: () => '0x11b568',
},
}
nonceTracker = new NonceTracker({
provider,
getPendingTransactions,
getConfirmedTransactions,
})
})
it('should return 0', async function () {
this.timeout(15000)
const nonceLock = await nonceTracker.getNonceLock('0x7d3517b0d011698406d6e0aed8453f0be2697926')
assert.equal(nonceLock.nextNonce, '0', 'nonce should be 0')
await nonceLock.releaseLock()
})
})
})
})
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