Merge pull request #1272 from ethereum/improve_remix_sim4

remix-lib/src/execution/execution-context.js

@@ -115,6 +115,7 @@ function ExecutionContext () {
   this.blockGasLimit = this.blockGasLimitDefault
   this.customNetWorks = {}
   this.blocks = {}
+  this.latestBlockNumber = 0
   this.txs = {}
 
   this.init = function (config) {
@@ -309,6 +310,7 @@ function ExecutionContext () {
 
     self.blocks['0x' + block.hash().toString('hex')] = block
     self.blocks[blockNumber] = block
+    self.latestBlockNumber = blockNumber
 
     this.logsManager.checkBlock(blockNumber, block, this.web3())
   }

remix-lib/src/execution/logsManager.js

@@ -6,6 +6,8 @@ class LogsManager {
   constructor () {
     this.notificationCallbacks = []
     this.subscriptions = {}
+    this.filters = {}
+    this.filterTracking = {}
     this.oldLogs = []
   }
 
@@ -66,13 +68,20 @@ class LogsManager {
       const subscriptionParams = this.subscriptions[subscriptionId]
       const [queryType, queryFilter] = subscriptionParams
 
-      if (this.eventMatchesFilter(changeEvent, queryType, queryFilter)) {
+      if (this.eventMatchesFilter(changeEvent, queryType, queryFilter || {topics: []})) {
         matchedSubscriptions.push(subscriptionId)
       }
     }
     return matchedSubscriptions
   }
 
+  getLogsForSubscription (subscriptionId) {
+    const subscriptionParams = this.subscriptions[subscriptionId]
+    const [_queryType, queryFilter] = subscriptionParams // eslint-disable-line
+
+    return this.getLogsFor(queryFilter)
+  }
+
   transmit (result) {
     this.notificationCallbacks.forEach((callback) => {
       if (result.params.result.raw) {
@@ -97,6 +106,39 @@ class LogsManager {
     delete this.subscriptions[subscriptionId]
   }
 
+  newFilter (filterType, params) {
+    const filterId = '0x' + crypto.randomBytes(16).toString('hex')
+    if (filterType === 'block' || filterType === 'pendingTransactions') {
+      this.filters[filterId] = { filterType }
+    }
+    if (filterType === 'filter') {
+      this.filters[filterId] = { filterType, params }
+    }
+    this.filterTracking[filterId] = {}
+    return filterId
+  }
+
+  uninstallFilter (filterId) {
+    delete this.filters[filterId]
+  }
+
+  getLogsForFilter (filterId, logsOnly) {
+    const {filterType, params} = this.filter[filterId]
+    const tracking = this.filterTracking[filterId]
+
+    if (logsOnly || filterType === 'filter') {
+      return this.getLogsFor(params || {topics: []})
+    }
+    if (filterType === 'block') {
+      let blocks = this.oldLogs.filter(x => x.type === 'block').filter(x => tracking.block === undefined || x.blockNumber >= tracking.block)
+      tracking.block = blocks[blocks.length - 1]
+      return blocks.map(block => ('0x' + block.hash().toString('hex')))
+    }
+    if (filterType === 'pendingTransactions') {
+      return []
+    }
+  }
+
   getLogsFor (params) {
     let results = []
     for (let log of this.oldLogs) {

remix-lib/src/execution/txExecution.js

@@ -43,7 +43,7 @@ module.exports = {
     * @param {Function} finalCallback    - last callback.
     */
   callFunction: function (from, to, data, value, gasLimit, funAbi, txRunner, callbacks, finalCallback) {
-    var tx = { from: from, to: to, data: data, useCall: false, value: value, gasLimit: gasLimit }
+    var tx = { from: from, to: to, data: data, useCall: funAbi.constant, value: value, gasLimit: gasLimit }
     txRunner.rawRun(tx, callbacks.confirmationCb, callbacks.gasEstimationForceSend, callbacks.promptCb, (error, txResult) => {
       // see universaldapp.js line 660 => 700 to check possible values of txResult (error case)
       finalCallback(error, txResult)

remix-lib/src/web3Provider/web3VmProvider.js

@@ -29,6 +29,7 @@ function web3VmProvider () {
   this.providers = { 'HttpProvider': function (url) {} }
   this.currentProvider = {'host': 'vm provider'}
   this.storageCache = {}
+  this.lastProcessedStorageTxHash = {}
   this.sha3Preimages = {}
   // util
   this.sha3 = function () { return self.web3.sha3.apply(self.web3, arguments) }
@@ -92,6 +93,7 @@ web3VmProvider.prototype.txWillProcess = function (self, data) {
     const account = ethutil.toBuffer(tx.to)
     self.vm.stateManager.dumpStorage(account, function (storage) {
       self.storageCache[self.processingHash][tx.to] = storage
+      self.lastProcessedStorageTxHash[tx.to] = self.processingHash
     })
   }
   this.processingIndex = 0
@@ -171,12 +173,14 @@ web3VmProvider.prototype.pushTrace = function (self, data) {
     if (step.op === 'CREATE') {
       this.processingAddress = traceHelper.contractCreationToken(this.processingIndex)
       this.storageCache[this.processingHash][this.processingAddress] = {}
+      this.lastProcessedStorageTxHash[this.processingAddress] = this.processingHash
     } else {
       this.processingAddress = uiutil.normalizeHexAddress(step.stack[step.stack.length - 2])
       if (!self.storageCache[self.processingHash][this.processingAddress]) {
         const account = ethutil.toBuffer(this.processingAddress)
         self.vm.stateManager.dumpStorage(account, function (storage) {
           self.storageCache[self.processingHash][self.processingAddress] = storage
+          self.lastProcessedStorageTxHash[self.processingAddress] = self.processingHash
         })
       }
     }
@@ -217,6 +221,11 @@ web3VmProvider.prototype.traceTransaction = function (txHash, options, cb) {
 
 web3VmProvider.prototype.storageRangeAt = function (blockNumber, txIndex, address, start, maxLength, cb) { // txIndex is the hash in the case of the VM
   // we don't use the range params here
+
+  if (txIndex === 'latest') {
+    txIndex = this.lastProcessedStorageTxHash[address]
+  }
+
   if (this.storageCache[txIndex] && this.storageCache[txIndex][address]) {
     var storage = this.storageCache[txIndex][address]
     return cb(null, {

remix-simulator/README.md

@@ -16,7 +16,7 @@ Implemented:
 * [~] eth_accounts
 * [X] eth_blockNumber
 * [X] eth_getBalance
-* [_] eth_getStorageAt
+* [~] eth_getStorageAt
 * [X] eth_getTransactionCount
 * [X] eth_getBlockTransactionCountByHash
 * [X] eth_getBlockTransactionCountByNumber
@@ -40,12 +40,12 @@ Implemented:
 * [X] eth_compileSolidity (DEPRECATED)
 * [X] eth_compileLLL (DEPRECATED)
 * [X] eth_compileSerpent (DEPRECATED)
-* [_] eth_newFilter
-* [_] eth_newBlockFilter
-* [_] eth_newPendingTransactionFilter
-* [_] eth_uninstallFilter
-* [_] eth_getFilterChanges
-* [_] eth_getFilterLogs
+* [X] eth_newFilter
+* [X] eth_newBlockFilter
+* [X] eth_newPendingTransactionFilter
+* [X] eth_uninstallFilter
+* [~] eth_getFilterChanges
+* [~] eth_getFilterLogs
 * [X] eth_getLogs
 * [_] eth_getWork
 * [_] eth_submitWork
@@ -55,18 +55,6 @@ Implemented:
 * [_] db_getString
 * [_] db_putHex
 * [_] db_getHex
-* [X] shh_version
-* [_] shh_post
-* [_] shh_newIdentity
-* [_] shh_hasIdentity
-* [_] shh_newGroup
-* [_] shh_addToGroup
-* [_] shh_newFilter
-* [_] shh_uninstallFilter
-* [_] shh_getFilterChanges
-* [_] shh_getMessages
-* [_] bzz_hive (stub)
-* [_] bzz_info (stub)
 * [_] debug_traceTransaction
 * [X] eth_subscribe
 * [X] eth_unsubscribe
@@ -79,5 +67,3 @@ Implemented:
 * [_] personal_unlockAccount
 * [_] personal_sendTransaction
 * [_] rpc_modules
-* [_] web3_clientVersion
-* [_] web3_sha3

remix-simulator/bin/ethsim

@@ -24,12 +24,14 @@ program
   .option('-b, --ip [host]', 'specify host')
   .option('-c, --coinbase [coinbase]', 'specify host')
   .option('--rpc', 'run rpc server only')
+  .option('--details', 'display payloads for every requests and their responses')
   .parse(process.argv)
 
 const Server = require('../src/server')
 const server = new Server({
   coinbase: program.coinbase || "0x0000000000000000000000000000000000000000",
-  rpc: program.rpc
+  rpc: program.rpc,
+  logDetails: program.details
 })
 server.start(program.host || '127.0.0.1', program.port || 8545)
 

remix-simulator/package.json

@@ -29,7 +29,7 @@
     "remix-lib": "0.4.14",
     "standard": "^10.0.3",
     "time-stamp": "^2.0.0",
-    "web3": "^1.0.0-beta.37"
+    "web3": "1.0.0-beta.37"
   },
   "devDependencies": {
     "@babel/core": "^7.4.5",

remix-simulator/src/methods/accounts.js

@@ -20,7 +20,7 @@ Accounts.prototype.init = async function () {
       this.accountsKeys[ethJSUtil.toChecksumAddress(account.address)] = account.privateKey
       this.accounts[ethJSUtil.toChecksumAddress(account.address)] = { privateKey: Buffer.from(account.privateKey.replace('0x', ''), 'hex'), nonce: 0 }
 
-      executionContext.vm().stateManager.getAccount(Buffer.from(account.address.toLowerCase().replace('0x', ''), 'hex'), (err, account) => {
+      executionContext.vm().stateManager.getAccount(Buffer.from(account.address.replace('0x', ''), 'hex'), (err, account) => {
         if (err) {
           throw new Error(err)
         }
@@ -61,13 +61,16 @@ Accounts.prototype.eth_getBalance = function (payload, cb) {
 }
 
 Accounts.prototype.eth_sign = function (payload, cb) {
-  let address = payload.params[0]
-  let message = payload.params[1]
+  const address = payload.params[0]
+  const message = payload.params[1]
 
-  let privateKey = this.accountsKeys[address]
-  let account = Web3.eth.accounts.privateKeyToAccount(privateKey)
+  const privateKey = this.accountsKeys[ethJSUtil.toChecksumAddress(address)]
+  if (!privateKey) {
+    return cb(new Error('unknown account'))
+  }
+  const account = this.web3.eth.accounts.privateKeyToAccount(privateKey)
 
-  let data = account.sign(message)
+  const data = account.sign(message)
 
   cb(null, data.signature)
 }

remix-simulator/src/methods/blocks.js

@@ -17,12 +17,18 @@ Blocks.prototype.methods = function () {
     eth_getBlockTransactionCountByHash: this.eth_getBlockTransactionCountByHash.bind(this),
     eth_getBlockTransactionCountByNumber: this.eth_getBlockTransactionCountByNumber.bind(this),
     eth_getUncleCountByBlockHash: this.eth_getUncleCountByBlockHash.bind(this),
-    eth_getUncleCountByBlockNumber: this.eth_getUncleCountByBlockNumber.bind(this)
+    eth_getUncleCountByBlockNumber: this.eth_getUncleCountByBlockNumber.bind(this),
+    eth_getStorageAt: this.eth_getStorageAt.bind(this)
   }
 }
 
 Blocks.prototype.eth_getBlockByNumber = function (payload, cb) {
-  var block = executionContext.blocks[payload.params[0]]
+  let blockIndex = payload.params[0]
+  if (blockIndex === 'latest') {
+    blockIndex = executionContext.latestBlockNumber
+  }
+
+  const block = executionContext.blocks[blockIndex]
 
   if (!block) {
     return cb(new Error('block not found'))
@@ -117,4 +123,17 @@ Blocks.prototype.eth_getUncleCountByBlockNumber = function (payload, cb) {
   cb(null, 0)
 }
 
+Blocks.prototype.eth_getStorageAt = function (payload, cb) {
+  const [address, position, blockNumber] = payload.params
+
+  executionContext.web3().debug.storageRangeAt(blockNumber, 'latest', address.toLowerCase(), position, 1, (err, result) => {
+    if (err || (result.storage && Object.values(result.storage).length === 0)) {
+      return cb(err, '')
+    }
+
+    let value = Object.values(result.storage)[0].value
+    cb(err, value)
+  })
+}
+
 module.exports = Blocks

remix-simulator/src/methods/filters.js

@@ -13,7 +13,6 @@ Filters.prototype.methods = function () {
   }
 }
 
-// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getlogs
 Filters.prototype.eth_getLogs = function (payload, cb) {
   let results = executionContext.logsManager.getLogsFor(payload.params[0])
   cb(null, results)
@@ -29,4 +28,36 @@ Filters.prototype.eth_unsubscribe = function (payload, cb) {
   cb(null, true)
 }
 
+Filters.prototype.eth_newFilter = function (payload, cb) {
+  const filterId = executionContext.logsManager.newFilter('filter', payload.params[0])
+  cb(null, filterId)
+}
+
+Filters.prototype.eth_newBlockFilter = function (payload, cb) {
+  const filterId = executionContext.logsManager.newFilter('block')
+  cb(null, filterId)
+}
+
+Filters.prototype.eth_newPendingTransactionFilter = function (payload, cb) {
+  const filterId = executionContext.logsManager.newFilter('pendingTransactions')
+  cb(null, filterId)
+}
+
+Filters.prototype.eth_uninstallfilter = function (payload, cb) {
+  const result = executionContext.logsManager.uninstallFilter(payload.params[0])
+  cb(null, result)
+}
+
+Filters.prototype.eth_getFilterChanges = function (payload, cb) {
+  const filterId = payload.params[0]
+  let results = executionContext.logsManager.getLogsForFilter(filterId)
+  cb(null, results)
+}
+
+Filters.prototype.eth_getFilterLogs = function (payload, cb) {
+  const filterId = payload.params[0]
+  let results = executionContext.logsManager.getLogsForFilter(filterId, true)
+  cb(null, results)
+}
+
 module.exports = Filters

remix-simulator/src/methods/transactions.js

@@ -53,6 +53,10 @@ Transactions.prototype.eth_getTransactionReceipt = function (payload, cb) {
       'status': receipt.status
     }
 
+    if (r.blockNumber === '0x') {
+      r.blockNumber = '0x0'
+    }
+
     cb(null, r)
   })
 }
@@ -78,6 +82,12 @@ Transactions.prototype.eth_call = function (payload, cb) {
   if (payload.params && payload.params.length > 0 && payload.params[0].from) {
     payload.params[0].from = ethJSUtil.toChecksumAddress(payload.params[0].from)
   }
+  if (payload.params && payload.params.length > 0 && payload.params[0].to) {
+    payload.params[0].to = ethJSUtil.toChecksumAddress(payload.params[0].to)
+  }
+
+  payload.params[0].value = undefined
+
   processTx(this.accounts, payload, true, cb)
 }
 
@@ -130,6 +140,10 @@ Transactions.prototype.eth_getTransactionByHash = function (payload, cb) {
       r.value = '0x0'
     }
 
+    if (r.blockNumber === '0x') {
+      r.blockNumber = '0x0'
+    }
+
     cb(null, r)
   })
 }

remix-simulator/src/methods/txProcess.js

@@ -16,7 +16,7 @@ function runCall (payload, from, to, data, value, gasLimit, txRunner, callbacks,
     return callback(null, toReturn)
   }
 
-  TxExecution.callFunction(from, to, data, value, gasLimit, null, txRunner, callbacks, finalCallback, true)
+  TxExecution.callFunction(from, to, data, value, gasLimit, {constant: true}, txRunner, callbacks, finalCallback, true)
 }
 
 function runTx (payload, from, to, data, value, gasLimit, txRunner, callbacks, callback) {
@@ -27,7 +27,7 @@ function runTx (payload, from, to, data, value, gasLimit, txRunner, callbacks, c
     callback(null, result.transactionHash)
   }
 
-  TxExecution.callFunction(from, to, data, value, gasLimit, null, txRunner, callbacks, finalCallback, false)
+  TxExecution.callFunction(from, to, data, value, gasLimit, {constant: false}, txRunner, callbacks, finalCallback, false)
 }
 
 function createContract (payload, from, data, value, gasLimit, txRunner, callbacks, callback) {

remix-simulator/src/methods/whisper.js

-
-var Whisper = function () {
-}
-
-Whisper.prototype.methods = function () {
-  return {
-    shh_version: this.shh_version.bind(this)
-  }
-}
-
-Whisper.prototype.shh_version = function (payload, cb) {
-  cb(null, 5)
-}
-
-module.exports = Whisper

remix-simulator/src/provider.js

@@ -10,11 +10,11 @@ const Filters = require('./methods/filters.js')
 const Misc = require('./methods/misc.js')
 const Net = require('./methods/net.js')
 const Transactions = require('./methods/transactions.js')
-const Whisper = require('./methods/whisper.js')
 
 const generateBlock = require('./genesis.js')
 
 var Provider = function (options) {
+  this.options = options || {}
   this.Accounts = new Accounts()
   this.Transactions = new Transactions()
 
@@ -24,10 +24,10 @@ var Provider = function (options) {
   this.methods = merge(this.methods, (new Misc()).methods())
   this.methods = merge(this.methods, (new Filters()).methods())
   this.methods = merge(this.methods, (new Net()).methods())
-  this.methods = merge(this.methods, (this.Transactions.methods()))
-  this.methods = merge(this.methods, (new Whisper()).methods())
+  this.methods = merge(this.methods, this.Transactions.methods())
 
   generateBlock()
+  this.init()
 }
 
 Provider.prototype.init = async function () {
@@ -39,8 +39,15 @@ Provider.prototype.sendAsync = function (payload, callback) {
   log.info('payload method is ', payload.method)
 
   let method = this.methods[payload.method]
+  if (this.options.logDetails) {
+    log.info(payload)
+  }
   if (method) {
     return method.call(method, payload, (err, result) => {
+      if (this.options.logDetails) {
+        log.info(err)
+        log.info(result)
+      }
       if (err) {
         return callback(err)
       }

remix-simulator/src/server.js

@@ -54,7 +54,12 @@ class Server {
       })
     }
 
-    app.listen(port, host, () => log('Remix Simulator listening on port ' + host + ':' + port))
+    app.listen(port, host, () => {
+      log('Remix Simulator listening on ws://' + host + ':' + port)
+      if (!this.rpcOnly) {
+        log('http json-rpc is deprecated and disabled by default. To enable it use --rpc')
+      }
+    })
   }
 }
 

remix-simulator/test/accounts.js

@@ -10,8 +10,32 @@ describe('Accounts', function () {
     web3.setProvider(provider)
   })
 
-  it('should get a list of accounts', async function () {
-    let accounts = await web3.eth.getAccounts()
-    assert.notEqual(accounts.length, 0)
+  describe('eth_getAccounts', () => {
+    it('should get a list of accounts', async function () {
+      let accounts = await web3.eth.getAccounts()
+      assert.notEqual(accounts.length, 0)
+    })
+  })
+
+  describe('eth_getBalance', () => {
+    it('should get a account balance', async function () {
+      let accounts = await web3.eth.getAccounts()
+      let balance0 = await web3.eth.getBalance(accounts[0])
+      let balance1 = await web3.eth.getBalance(accounts[1])
+      let balance2 = await web3.eth.getBalance(accounts[2])
+
+      assert.deepEqual(balance0, '100000000000000000000')
+      assert.deepEqual(balance1, '100000000000000000000')
+      assert.deepEqual(balance2, '100000000000000000000')
+    })
+  })
+
+  describe('eth_sign', () => {
+    it('should sign payloads', async function () {
+      let accounts = await web3.eth.getAccounts()
+      let signature = await web3.eth.sign('Hello world', accounts[0])
+
+      assert.deepEqual(signature.length, 132)
+    })
   })
 })

remix-simulator/test/misc.js

@@ -10,47 +10,103 @@ describe('Misc', function () {
     web3.setProvider(provider)
   })
 
-  it('should get correct remix simulator version', async function (done) {
-    web3._requestManager.send({method: 'web3_clientVersion', params: []}, (err, version) => {
-      if (err) {
-        throw new Error(err)
-      }
-      let remixVersion = require('../package.json').version
-      assert.equal(version, 'Remix Simulator/' + remixVersion)
-      done()
+  describe('web3_clientVersion', () => {
+    it('should get correct remix simulator version', async function (done) {
+      web3._requestManager.send({ method: 'web3_clientVersion', params: [] }, (err, version) => {
+        if (err) {
+          throw new Error(err)
+        }
+        let remixVersion = require('../package.json').version
+        assert.equal(version, 'Remix Simulator/' + remixVersion)
+        done()
+      })
     })
   })
 
-  it('should get protocol version', async function () {
-    web3._requestManager.send({method: 'eth_protocolVersion', params: []}, (err, result) => {
-      if (err) {
-        throw new Error(err)
-      }
-      assert.equal(result, '0x3f')
+  describe('eth_protocolVersion', () => {
+    it('should get protocol version', async function () {
+      web3._requestManager.send({ method: 'eth_protocolVersion', params: [] }, (err, result) => {
+        if (err) {
+          throw new Error(err)
+        }
+        assert.equal(result, '0x3f')
+      })
     })
   })
 
-  it('should get if is syncing', async function () {
-    let isSyncing = await web3.eth.isSyncing()
-    assert.equal(isSyncing, false)
+  describe('eth_syncing', () => {
+    it('should get if is syncing', async function () {
+      let isSyncing = await web3.eth.isSyncing()
+      assert.equal(isSyncing, false)
+    })
+  })
+
+  describe('eth_mining', () => {
+    it('should get if is mining', async function () {
+      let isMining = await web3.eth.isMining()
+      assert.equal(isMining, false)
+    })
   })
 
-  it('should get if is mining', async function () {
-    let isMining = await web3.eth.isMining()
-    assert.equal(isMining, false)
+  describe('eth_hashrate', () => {
+    it('should get hashrate', async function () {
+      let hashrate = await web3.eth.getHashrate()
+      assert.equal(hashrate, 0)
+    })
+  })
+
+  describe('web3_sha3', () => {
+    it('should get result of a sha3', async function () {
+      web3._requestManager.send({ method: 'web3_sha3', params: ['0x68656c6c6f20776f726c64'] }, (err, result) => {
+        if (err) {
+          throw new Error(err)
+        }
+        assert.equal(result, '0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad')
+      })
+    })
   })
 
-  it('should get hashrate', async function () {
-    let hashrate = await web3.eth.getHashrate()
-    assert.equal(hashrate, 0)
+  describe('eth_getCompilers', () => {
+    it('should get list of compilers', async function () {
+      web3._requestManager.send({ method: 'eth_getCompilers', params: [] }, (err, result) => {
+        if (err) {
+          throw new Error(err)
+        }
+        assert.equal(result, 0)
+      })
+    })
+  })
+
+  describe('eth_compileSolidity', () => {
+    it('get unsupported result when requesting solidity compiler', async function () {
+      web3._requestManager.send({ method: 'eth_compileSolidity', params: [] }, (err, result) => {
+        if (err) {
+          throw new Error(err)
+        }
+        assert.equal(result, 'unsupported')
+      })
+    })
+  })
+
+  describe('eth_compileLLL', () => {
+    it('get unsupported result when requesting LLL compiler', async function () {
+      web3._requestManager.send({ method: 'eth_compileLLL', params: [] }, (err, result) => {
+        if (err) {
+          throw new Error(err)
+        }
+        assert.equal(result, 'unsupported')
+      })
+    })
   })
 
-  it('should get result of a sha3', async function () {
-    web3._requestManager.send({method: 'web3_sha3', params: ['0x68656c6c6f20776f726c64']}, (err, result) => {
-      if (err) {
-        throw new Error(err)
-      }
-      assert.equal(result, '0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad')
+  describe('eth_compileSerpent', () => {
+    it('get unsupported result when requesting serpent compiler', async function () {
+      web3._requestManager.send({ method: 'eth_compileSerpent', params: [] }, (err, result) => {
+        if (err) {
+          throw new Error(err)
+        }
+        assert.equal(result, 'unsupported')
+      })
     })
   })
 })

remix-simulator/test/whisper.js

-/* global describe, before, it */
-var Web3 = require('web3')
-var RemixSim = require('../index.js')
-let web3 = new Web3()
-var assert = require('assert')
-
-describe('Whisper', function () {
-  before(function () {
-    let provider = new RemixSim.Provider()
-    web3.setProvider(provider)
-  })
-
-  it('should get correct remix simulator version', async function () {
-    let version = await web3.shh.getVersion()
-    assert.equal(version, 5)
-  })
-})