diff --git a/sol/tests.sol.js b/sol/tests.sol.js
index 2356f09100..2fa6821bbe 100644
--- a/sol/tests.sol.js
+++ b/sol/tests.sol.js
@@ -100,4 +100,4 @@ library Assert {
   //}
 
 }
-`;
+`
diff --git a/src/compiler.js b/src/compiler.js
index 6be9bc1002..f6fc4698a9 100644
--- a/src/compiler.js
+++ b/src/compiler.js
@@ -10,8 +10,8 @@ function compileFileOrFiles (filename, isDirectory, cb) {
   let compiler, filepath
 
   const sources = {
-    'tests.sol': {content: require('../sol/tests.sol.js') },
-    'remix_tests.sol': {content: require('../sol/tests.sol.js') }
+    'tests.sol': { content: require('../sol/tests.sol.js') },
+    'remix_tests.sol': { content: require('../sol/tests.sol.js') }
   }
 
   // TODO: for now assumes filepath dir contains all tests, later all this
@@ -49,7 +49,7 @@ function compileFileOrFiles (filename, isDirectory, cb) {
 function compileContractSources (sources, importFileCb, cb) {
   let compiler, filepath
 
-  if(!sources['remix_tests.sol']) {
+  if (!sources['remix_tests.sol']) {
     sources['remix_tests.sol'] = {content: require('../sol/tests.sol.js')}
   }
 
diff --git a/src/deployer.js b/src/deployer.js
index 3b51e1e48a..969f529610 100644
--- a/src/deployer.js
+++ b/src/deployer.js
@@ -56,8 +56,8 @@ function deployAll (compileResult, web3, callback) {
       async.eachOfLimit(contractsToDeploy, 1, function (contractName, index, nextEach) {
         let contract = compiledObject[contractName]
         if (!contract) {
-          console.error("Contract not found: " + contractName);
-          return nextEach(new Error("Contract not found: " + contractName));
+          console.error('Contract not found: ' + contractName)
+          return nextEach(new Error('Contract not found: ' + contractName))
         }
         let contractObject = new web3.eth.Contract(contract.abi)
 
diff --git a/src/index.js b/src/index.js
index 92cdb87637..f8019f1dfa 100644
--- a/src/index.js
+++ b/src/index.js
@@ -10,7 +10,7 @@ let TestRunner = require('./testRunner.js')
 const Web3 = require('web3')
 const Provider = require('remix-simulator').Provider
 
-var createWeb3Provider = function() {
+var createWeb3Provider = function () {
   let web3 = new Web3()
   web3.setProvider(new Provider())
   return web3
@@ -22,7 +22,7 @@ var runTestSources = function (contractSources, testCallback, resultCallback, fi
       Compiler.compileContractSources(contractSources, importFileCb, next)
     },
     function deployAllContracts (compilationResult, next) {
-      let web3 = createWeb3Provider();
+      let web3 = createWeb3Provider()
       Deployer.deployAll(compilationResult, web3, function (err, contracts) {
         if (err) {
           next(err)
@@ -35,7 +35,6 @@ var runTestSources = function (contractSources, testCallback, resultCallback, fi
       let contractsToTest = []
 
       for (let filename in compilationResult) {
-        let contract = compilationResult[filename];
         if (filename.indexOf('_test.sol') < 0) {
           continue
         }
@@ -56,11 +55,11 @@ var runTestSources = function (contractSources, testCallback, resultCallback, fi
         if (result.type === 'testFailure') {
           errors.push(result)
         }
-        testCallback(result);
+        testCallback(result)
       }
 
       var _resultsCallback = function (_err, result, cb) {
-        resultCallback(_err, result, () => {});
+        resultCallback(_err, result, () => {})
         totalPassing += result.passingNum
         totalFailing += result.failureNum
         totalTime += result.timePassed
@@ -79,21 +78,21 @@ var runTestSources = function (contractSources, testCallback, resultCallback, fi
           return next(err)
         }
 
-        let finalResults = {};
+        let finalResults = {}
 
-        finalResults.totalPassing = totalPassing || 0;
-        finalResults.totalFailing = totalFailing || 0;
-        finalResults.totalTime = totalTime || 0;
-        finalResults.errors = [];
+        finalResults.totalPassing = totalPassing || 0
+        finalResults.totalFailing = totalFailing || 0
+        finalResults.totalTime = totalTime || 0
+        finalResults.errors = []
 
         errors.forEach((error, _index) => {
-          finalResults.errors.push({context: error.context, value: error.value, message: error.errMsg});
+          finalResults.errors.push({context: error.context, value: error.value, message: error.errMsg})
         })
 
-        next(null, finalResults);
+        next(null, finalResults)
       })
     }
-  ], finalCallback);
+  ], finalCallback)
 }
 
 var runTestFiles = function (filepath, isDirectory, web3) {
diff --git a/src/testRunner.js b/src/testRunner.js
index 070d99122d..c83c989697 100644
--- a/src/testRunner.js
+++ b/src/testRunner.js
@@ -36,7 +36,7 @@ function runTest (testName, testObject, testCallback, resultsCallback) {
   let passingNum = 0
   let failureNum = 0
   let timePassed = 0
-  let web3 = new Web3();
+  let web3 = new Web3()
 
   testCallback({type: 'contract', value: testName})
   async.eachOfLimit(runList, 1, function (func, index, next) {
@@ -59,7 +59,7 @@ function runTest (testName, testObject, testCallback, resultsCallback) {
       method.send().on('receipt', function (receipt) {
         try {
           let time = Math.ceil((Date.now() - startTime) / 1000.0)
-          //if (func.type === 'test') {
+          // if (func.type === 'test') {
           let topic = Web3.utils.sha3('AssertionEvent(bool,string)')
 
           let matchingEvents = []
@@ -83,10 +83,10 @@ function runTest (testName, testObject, testCallback, resultsCallback) {
             testCallback({type: 'testFailure', value: changeCase.sentenceCase(func.name), time: time, errMsg: result[1], context: testName})
             failureNum += 1
           }
-          //}
-        } catch(err) {
-          console.log("error!");
-          console.dir(err);
+          // }
+        } catch (err) {
+          console.log('error!')
+          console.dir(err)
           return next(err)
         }
         next()