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const JsonRpcEngine = require('json-rpc-engine')
const scaffoldMiddleware = require('eth-json-rpc-middleware/scaffold')
const providerAsMiddleware = require('eth-json-rpc-middleware/providerAsMiddleware')
const GanacheCore = require('ganache-core')
module.exports = {
createEngineForTestData,
providerFromEngine,
scaffoldMiddleware,
createTestProviderTools,
getTestSeed,
getTestAccounts,
}
function getTestSeed () {
return 'people carpet cluster attract ankle motor ozone mass dove original primary mask'
}
function getTestAccounts () {
return [
{ address: '0x88bb7F89eB5e5b30D3e15a57C68DBe03C6aCCB21', key: Buffer.from('254A8D551474F35CCC816388B4ED4D20B945C96B7EB857A68064CB9E9FB2C092', 'hex') },
{ address: '0x1fe9aAB565Be19629fF4e8541ca2102fb42D7724', key: Buffer.from('6BAB5A4F2A6911AF8EE2BD32C6C05F6643AC48EF6C939CDEAAAE6B1620805A9B', 'hex') },
{ address: '0xbda5c89aa6bA1b352194291AD6822C92AbC87c7B', key: Buffer.from('9B11D7F833648F26CE94D544855558D7053ECD396E4F4563968C232C012879B0', 'hex') },
]
}
function createEngineForTestData () {
return new JsonRpcEngine()
}
function providerFromEngine (engine) {
const provider = { sendAsync: engine.handle.bind(engine) }
return provider
}
function createTestProviderTools (opts = {}) {
const engine = createEngineForTestData()
// handle provided hooks
engine.push(scaffoldMiddleware(opts.scaffold || {}))
// handle block tracker methods
engine.push(providerAsMiddleware(GanacheCore.provider({
mnemonic: getTestSeed(),
})))
// wrap in standard provider interface
const provider = providerFromEngine(engine)
return { provider, engine }
}
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