diff --git a/react-packager/src/Activity/__tests__/Activity-test.js b/react-packager/src/Activity/__tests__/Activity-test.js
index 90ac43e8..39d222ce 100644
--- a/react-packager/src/Activity/__tests__/Activity-test.js
+++ b/react-packager/src/Activity/__tests__/Activity-test.js
@@ -10,13 +10,13 @@
 
 jest.autoMockOff();
 
+var Activity = require('../');
+
 describe('Activity', () => {
   const origConsoleLog = console.log;
-  let Activity;
 
   beforeEach(() => {
     console.log = jest.genMockFn();
-    Activity = require('../');
     jest.runOnlyPendingTimers();
   });
 
@@ -68,9 +68,7 @@ describe('Activity', () => {
 
       expect(() => {
         Activity.endEvent(eid);
-      }).toThrow('event(3) has already ended!');
-
-      jest.runOnlyPendingTimers();
+      }).toThrow('event(1) has already ended!');
     });
   });
 
diff --git a/react-packager/src/AssetServer/__tests__/AssetServer-test.js b/react-packager/src/AssetServer/__tests__/AssetServer-test.js
index d3688914..6c46b3ec 100644
--- a/react-packager/src/AssetServer/__tests__/AssetServer-test.js
+++ b/react-packager/src/AssetServer/__tests__/AssetServer-test.js
@@ -11,17 +11,11 @@ jest
 
 const Promise = require('promise');
 
+var AssetServer = require('../');
+var crypto = require('crypto');
+var fs = require('fs');
+
 describe('AssetServer', () => {
-  let AssetServer;
-  let crypto;
-  let fs;
-
-  beforeEach(() => {
-    AssetServer = require('../');
-    crypto = require('crypto');
-    fs = require('fs');
-  });
-
   describe('assetServer.get', () => {
     pit('should work for the simple case', () => {
       const server = new AssetServer({
diff --git a/react-packager/src/Bundler/__tests__/Bundle-test.js b/react-packager/src/Bundler/__tests__/Bundle-test.js
index 74d18924..33b6646e 100644
--- a/react-packager/src/Bundler/__tests__/Bundle-test.js
+++ b/react-packager/src/Bundler/__tests__/Bundle-test.js
@@ -12,14 +12,14 @@ jest.autoMockOff();
 
 var SourceMapGenerator = require('source-map').SourceMapGenerator;
 
+var Bundle = require('../Bundle');
+var ModuleTransport = require('../../lib/ModuleTransport');
+var UglifyJS = require('uglify-js');
+
 describe('Bundle', function() {
-  var ModuleTransport;
-  var Bundle;
   var bundle;
 
   beforeEach(function() {
-    Bundle = require('../Bundle');
-    ModuleTransport = require('../../lib/ModuleTransport');
     bundle = new Bundle('test_url');
     bundle.getSourceMap = jest.genMockFn().mockImpl(function() {
       return 'test-source-map';
@@ -96,7 +96,7 @@ describe('Bundle', function() {
         map: 'map',
       };
 
-      require('uglify-js').minify = function() {
+      UglifyJS.minify = function() {
         return minified;
       };
 
@@ -246,35 +246,35 @@ describe('Bundle', function() {
 });
 
 
- function genSourceMap(modules) {
-   var sourceMapGen = new SourceMapGenerator({file: 'bundle.js', version: 3});
-   var bundleLineNo = 0;
-   for (var i = 0; i < modules.length; i++) {
-     var module = modules[i];
-     var transformedCode = module.code;
-     var sourcePath = module.sourcePath;
-     var sourceCode = module.sourceCode;
-     var transformedLineCount = 0;
-     var lastCharNewLine = false;
-     for (var t = 0; t < transformedCode.length; t++) {
-       if (t === 0 || lastCharNewLine) {
-         sourceMapGen.addMapping({
-           generated: {line: bundleLineNo + 1, column: 0},
-           original: {line: transformedLineCount + 1, column: 0},
-           source: sourcePath
-         });
-       }
-       lastCharNewLine = transformedCode[t] === '\n';
-       if (lastCharNewLine) {
-         transformedLineCount++;
-         bundleLineNo++;
-       }
-     }
-     bundleLineNo++;
-     sourceMapGen.setSourceContent(
-       sourcePath,
-       sourceCode
-     );
-   }
-   return sourceMapGen.toJSON();
- }
+function genSourceMap(modules) {
+  var sourceMapGen = new SourceMapGenerator({file: 'bundle.js', version: 3});
+  var bundleLineNo = 0;
+  for (var i = 0; i < modules.length; i++) {
+    var module = modules[i];
+    var transformedCode = module.code;
+    var sourcePath = module.sourcePath;
+    var sourceCode = module.sourceCode;
+    var transformedLineCount = 0;
+    var lastCharNewLine = false;
+    for (var t = 0; t < transformedCode.length; t++) {
+      if (t === 0 || lastCharNewLine) {
+        sourceMapGen.addMapping({
+          generated: {line: bundleLineNo + 1, column: 0},
+          original: {line: transformedLineCount + 1, column: 0},
+          source: sourcePath
+        });
+      }
+      lastCharNewLine = transformedCode[t] === '\n';
+      if (lastCharNewLine) {
+        transformedLineCount++;
+        bundleLineNo++;
+      }
+    }
+    bundleLineNo++;
+    sourceMapGen.setSourceContent(
+      sourcePath,
+      sourceCode
+    );
+  }
+  return sourceMapGen.toJSON();
+}
diff --git a/react-packager/src/Bundler/__tests__/Bundler-test.js b/react-packager/src/Bundler/__tests__/Bundler-test.js
index fb205d8a..b397f24e 100644
--- a/react-packager/src/Bundler/__tests__/Bundler-test.js
+++ b/react-packager/src/Bundler/__tests__/Bundler-test.js
@@ -17,41 +17,39 @@ jest
 
 jest.mock('fs');
 
-var Promise = require('promise');
+var Bundler = require('../');
+var JSTransformer = require('../../JSTransformer');
+var DependencyResolver = require('../../DependencyResolver');
+var sizeOf = require('image-size');
+var fs = require('fs');
 
 describe('Bundler', function() {
   var getDependencies;
   var wrapModule;
-  var Bundler;
   var bundler;
   var assetServer;
   var modules;
-  var ProgressBar;
 
   beforeEach(function() {
     getDependencies = jest.genMockFn();
     wrapModule = jest.genMockFn();
-    require('../../DependencyResolver').mockImpl(function() {
+    DependencyResolver.mockImpl(function() {
       return {
         getDependencies: getDependencies,
         wrapModule: wrapModule,
       };
     });
 
-    Bundler = require('../');
-
-    require('fs').statSync.mockImpl(function() {
+    fs.statSync.mockImpl(function() {
       return {
         isDirectory: () => true
       };
     });
 
-    require('fs').readFile.mockImpl(function(file, callback) {
+    fs.readFile.mockImpl(function(file, callback) {
       callback(null, '{"json":true}');
     });
 
-    ProgressBar = require('progress');
-
     assetServer = {
       getAssetData: jest.genMockFn(),
     };
@@ -114,7 +112,7 @@ describe('Bundler', function() {
       });
     });
 
-    require('../../JSTransformer').prototype.loadFileAndTransform
+    JSTransformer.prototype.loadFileAndTransform
       .mockImpl(function(path) {
         return Promise.resolve({
           code: 'transformed ' + path,
@@ -128,7 +126,7 @@ describe('Bundler', function() {
       return Promise.resolve('lol ' + code + ' lol');
     });
 
-    require('image-size').mockImpl(function(path, cb) {
+    sizeOf.mockImpl(function(path, cb) {
       cb(null, { width: 50, height: 100 });
     });
 
diff --git a/react-packager/src/BundlesLayout/__tests__/BundlesLayout-test.js b/react-packager/src/BundlesLayout/__tests__/BundlesLayout-test.js
index 2f66d6ff..99396bbc 100644
--- a/react-packager/src/BundlesLayout/__tests__/BundlesLayout-test.js
+++ b/react-packager/src/BundlesLayout/__tests__/BundlesLayout-test.js
@@ -11,19 +11,12 @@
 jest.dontMock('../index');
 jest.mock('fs');
 
-const Promise = require('promise');
+var Promise = require('promise');
+var BundlesLayout = require('../index');
+var DependencyResolver = require('../../DependencyResolver');
+var loadCacheSync = require('../../lib/loadCacheSync');
 
 describe('BundlesLayout', () => {
-  let BundlesLayout;
-  let DependencyResolver;
-  let loadCacheSync;
-
-  beforeEach(() => {
-    BundlesLayout = require('../index');
-    DependencyResolver = require('../../DependencyResolver');
-    loadCacheSync = require('../../lib/loadCacheSync');
-  });
-
   function newBundlesLayout(options) {
     return new BundlesLayout(Object.assign({
       projectRoots: ['/root'],
diff --git a/react-packager/src/BundlesLayout/__tests__/BundlesLayoutIntegration-test.js b/react-packager/src/BundlesLayout/__tests__/BundlesLayoutIntegration-test.js
index 7fea8f8f..33fb2f9a 100644
--- a/react-packager/src/BundlesLayout/__tests__/BundlesLayoutIntegration-test.js
+++ b/react-packager/src/BundlesLayout/__tests__/BundlesLayoutIntegration-test.js
@@ -17,12 +17,13 @@ const path = require('path');
 
 jest.mock('fs');
 
+var BundlesLayout = require('../index');
+var Cache = require('../../Cache');
+var DependencyResolver = require('../../DependencyResolver');
+var fs = require('fs');
+
 describe('BundlesLayout', () => {
-  var BundlesLayout;
-  var Cache;
-  var DependencyResolver;
   var fileWatcher;
-  var fs;
 
   const polyfills = [
     'polyfills/prelude_dev.js',
@@ -37,11 +38,6 @@ describe('BundlesLayout', () => {
   const baseFs = getBaseFs();
 
   beforeEach(() => {
-    fs = require('fs');
-    BundlesLayout = require('../index');
-    Cache = require('../../Cache');
-    DependencyResolver = require('../../DependencyResolver');
-
     fileWatcher = {
       on: () => this,
       isWatchman: () => Promise.resolve(false)
diff --git a/react-packager/src/Cache/__tests__/Cache-test.js b/react-packager/src/Cache/__tests__/Cache-test.js
index 8040e9e6..abb28b2e 100644
--- a/react-packager/src/Cache/__tests__/Cache-test.js
+++ b/react-packager/src/Cache/__tests__/Cache-test.js
@@ -20,19 +20,19 @@ jest
   .mock('fs');
 
 var Promise = require('promise');
+var Cache = require('../');
+var fs = require('fs');
+var os = require('os');
+var _ = require('underscore');
 
 describe('JSTransformer Cache', () => {
-  var Cache;
-
   beforeEach(() => {
-    require('os').tmpDir.mockImpl(() => 'tmpDir');
-
-    Cache = require('../');
+    os.tmpDir.mockImpl(() => 'tmpDir');
   });
 
   describe('getting/setting', () => {
     pit('calls loader callback for uncached file', () => {
-      require('fs').stat.mockImpl((file, callback) => {
+      fs.stat.mockImpl((file, callback) => {
         callback(null, {
           mtime: {
             getTime: () => {}
@@ -54,7 +54,7 @@ describe('JSTransformer Cache', () => {
     });
 
     pit('supports storing multiple fields', () => {
-      require('fs').stat.mockImpl((file, callback) => {
+      fs.stat.mockImpl((file, callback) => {
         callback(null, {
           mtime: {
             getTime: () => {}
@@ -82,7 +82,7 @@ describe('JSTransformer Cache', () => {
     });
 
     pit('gets the value from the loader callback', () => {
-      require('fs').stat.mockImpl((file, callback) =>
+      fs.stat.mockImpl((file, callback) =>
         callback(null, {
           mtime: {
             getTime: () => {}
@@ -104,7 +104,7 @@ describe('JSTransformer Cache', () => {
     });
 
     pit('caches the value after the first call', () => {
-      require('fs').stat.mockImpl((file, callback) => {
+      fs.stat.mockImpl((file, callback) => {
         callback(null, {
           mtime: {
             getTime: () => {}
@@ -134,7 +134,7 @@ describe('JSTransformer Cache', () => {
 
     pit('clears old field when getting new field and mtime changed', () => {
       var mtime = 0;
-      require('fs').stat.mockImpl((file, callback) => {
+      fs.stat.mockImpl((file, callback) => {
         callback(null, {
           mtime: {
             getTime: () => mtime++
@@ -179,8 +179,6 @@ describe('JSTransformer Cache', () => {
         }
       };
 
-      var fs = require('fs');
-
       fs.existsSync.mockImpl(() => true);
 
       fs.statSync.mockImpl(filePath => fileStats[filePath]);
@@ -220,7 +218,7 @@ describe('JSTransformer Cache', () => {
     });
 
     pit('should not load outdated cache', () => {
-      require('fs').stat.mockImpl((file, callback) =>
+      fs.stat.mockImpl((file, callback) =>
         callback(null, {
           mtime: {
             getTime: () => {}
@@ -259,7 +257,7 @@ describe('JSTransformer Cache', () => {
       var index = 0;
       var mtimes = [10, 20, 30];
       var debounceIndex = 0;
-      require('underscore').debounce = callback => {
+      _.debounce = callback => {
         return () => {
           if (++debounceIndex === 3) {
             callback();
@@ -267,7 +265,6 @@ describe('JSTransformer Cache', () => {
         };
       };
 
-      var fs = require('fs');
       fs.stat.mockImpl((file, callback) =>
         callback(null, {
           mtime: {
diff --git a/react-packager/src/DependencyResolver/DependencyGraph/__tests__/DependencyGraph-test.js b/react-packager/src/DependencyResolver/DependencyGraph/__tests__/DependencyGraph-test.js
index c456ba29..4aa40312 100644
--- a/react-packager/src/DependencyResolver/DependencyGraph/__tests__/DependencyGraph-test.js
+++ b/react-packager/src/DependencyResolver/DependencyGraph/__tests__/DependencyGraph-test.js
@@ -16,12 +16,13 @@ jest
   .mock('fs')
   .mock('../../../Cache');
 
+var Cache = require('../../../Cache');
+var DependencyGraph = require('../index');
+var fs = require('fs');
+
 describe('DependencyGraph', function() {
   var cache;
-  var Cache;
-  var DependencyGraph;
   var fileWatcher;
-  var fs;
 
   function getOrderedDependenciesAsJSON(dgraph, entry, platform) {
     return dgraph.getDependencies(entry, platform)
@@ -43,10 +44,6 @@ describe('DependencyGraph', function() {
   }
 
   beforeEach(function() {
-    fs = require('fs');
-    Cache = require('../../../Cache');
-    DependencyGraph = require('../index');
-
     fileWatcher = {
       on: function() {
         return this;
diff --git a/react-packager/src/DependencyResolver/__tests__/HasteDependencyResolver-test.js b/react-packager/src/DependencyResolver/__tests__/HasteDependencyResolver-test.js
index edb79cbb..5231dc4a 100644
--- a/react-packager/src/DependencyResolver/__tests__/HasteDependencyResolver-test.js
+++ b/react-packager/src/DependencyResolver/__tests__/HasteDependencyResolver-test.js
@@ -15,23 +15,21 @@ jest.dontMock('../')
 jest.mock('path');
 
 var Promise = require('promise');
+var HasteDependencyResolver = require('../');
+var Module = require('../Module');
+var Polyfill = require('../Polyfill');
+
+var path = require('path');
 var _ = require('underscore');
 
 describe('HasteDependencyResolver', function() {
-  var HasteDependencyResolver;
-  var Module;
-  var Polyfill;
-
   beforeEach(function() {
-    Module = require('../Module');
-    Polyfill = require('../Polyfill');
     Polyfill.mockClear();
 
     // For the polyfillDeps
-    require('path').join.mockImpl(function(a, b) {
+    path.join.mockImpl(function(a, b) {
       return b;
     });
-    HasteDependencyResolver = require('../');
   });
 
   class ResolutionResponseMock {
diff --git a/react-packager/src/DependencyResolver/__tests__/Module-test.js b/react-packager/src/DependencyResolver/__tests__/Module-test.js
index 640157d9..21ca6288 100644
--- a/react-packager/src/DependencyResolver/__tests__/Module-test.js
+++ b/react-packager/src/DependencyResolver/__tests__/Module-test.js
@@ -19,24 +19,16 @@ jest
 jest
   .mock('fs');
 
+var Fastfs = require('../fastfs');
+var Module = require('../Module');
+var ModuleCache = require('../ModuleCache');
+var Promise = require('promise');
+var fs = require('fs');
+var FileWatcher = require('../../FileWatcher');
+
 describe('Module', () => {
-  var Fastfs;
-  var Module;
-  var ModuleCache;
-  var Promise;
-  var fs;
-
-  const FileWatcher = require('../../FileWatcher');
   const fileWatcher = new FileWatcher(['/root']);
 
-  beforeEach(function() {
-    Fastfs = require('../fastfs');
-    Module = require('../Module');
-    ModuleCache = require('../ModuleCache');
-    Promise = require('promise');
-    fs = require('fs');
-  });
-
   describe('Async Dependencies', () => {
     function expectAsyncDependenciesToEqual(expected) {
       var fastfs = new Fastfs(
diff --git a/react-packager/src/FileWatcher/__tests__/FileWatcher-test.js b/react-packager/src/FileWatcher/__tests__/FileWatcher-test.js
index a5eeda3d..973c4f78 100644
--- a/react-packager/src/FileWatcher/__tests__/FileWatcher-test.js
+++ b/react-packager/src/FileWatcher/__tests__/FileWatcher-test.js
@@ -13,19 +13,20 @@ jest
   .dontMock('events')
   .dontMock('../')
   .dontMock('q')
-  .setMock(
-    'child_process',
-    { exec: function(cmd, cb) { cb(null, '/usr/bin/watchman'); } }
-  );
+  .setMock('child_process', {
+    exec: function(cmd, cb) {
+      cb(null, '/usr/bin/watchman');
+    }
+  });
+
+var FileWatcher = require('../');
+var sane = require('sane');
 
 describe('FileWatcher', function() {
-  var FileWatcher;
   var Watcher;
 
   beforeEach(function() {
-    require('mock-modules').dumpCache();
-    FileWatcher = require('../');
-    Watcher = require('sane').WatchmanWatcher;
+    Watcher = sane.WatchmanWatcher;
     Watcher.prototype.once.mockImplementation(function(type, callback) {
       callback();
     });
@@ -65,5 +66,4 @@ describe('FileWatcher', function() {
       expect(Watcher.prototype.close).toBeCalled();
     });
   });
-
 });
diff --git a/react-packager/src/JSTransformer/__tests__/Transformer-test.js b/react-packager/src/JSTransformer/__tests__/Transformer-test.js
index fdcd17eb..b182e1eb 100644
--- a/react-packager/src/JSTransformer/__tests__/Transformer-test.js
+++ b/react-packager/src/JSTransformer/__tests__/Transformer-test.js
@@ -9,21 +9,18 @@
 'use strict';
 
 jest
-  .dontMock('worker-farm')
   .dontMock('../../lib/ModuleTransport')
-  .dontMock('../index');
+  .dontMock('../');
 
 jest.mock('fs');
 
 var Cache = require('../../Cache');
+var Transformer = require('../');
+var fs = require('fs');
 
-var OPTIONS = {
-  transformModulePath: '/foo/bar',
-  cache: new Cache({}),
-};
+var options;
 
 describe('Transformer', function() {
-  var Transformer;
   var workers;
 
   beforeEach(function() {
@@ -31,21 +28,22 @@ describe('Transformer', function() {
     jest.setMock('worker-farm', jest.genMockFn().mockImpl(function() {
       return workers;
     }));
-    require('fs').readFile.mockImpl(function(file, callback) {
-      callback(null, 'content');
-    });
-    Transformer = require('../');
+
+    options = {
+      transformModulePath: '/foo/bar',
+      cache: new Cache({}),
+    };
   });
 
   pit('should loadFileAndTransform', function() {
     workers.mockImpl(function(data, callback) {
       callback(null, { code: 'transformed', map: 'sourceMap' });
     });
-    require('fs').readFile.mockImpl(function(file, callback) {
+    fs.readFile.mockImpl(function(file, callback) {
       callback(null, 'content');
     });
 
-    return new Transformer(OPTIONS).loadFileAndTransform('file')
+    return new Transformer(options).loadFileAndTransform('file')
       .then(function(data) {
         expect(data).toEqual({
           code: 'transformed',
@@ -60,7 +58,7 @@ describe('Transformer', function() {
     var message = 'message';
     var snippet = 'snippet';
 
-    require('fs').readFile.mockImpl(function(file, callback) {
+    fs.readFile.mockImpl(function(file, callback) {
       callback(null, 'var x;\nvar answer = 1 = x;');
     });
 
@@ -76,7 +74,7 @@ describe('Transformer', function() {
       callback(babelError);
     });
 
-    return new Transformer(OPTIONS).loadFileAndTransform('foo-file.js')
+    return new Transformer(options).loadFileAndTransform('foo-file.js')
       .catch(function(error) {
         expect(error.type).toEqual('TransformError');
         expect(error.message).toBe('SyntaxError ' + message);
diff --git a/react-packager/src/Server/__tests__/Server-test.js b/react-packager/src/Server/__tests__/Server-test.js
index be4feebf..6da2b195 100644
--- a/react-packager/src/Server/__tests__/Server-test.js
+++ b/react-packager/src/Server/__tests__/Server-test.js
@@ -18,10 +18,14 @@ jest.setMock('worker-farm', function() { return () => {}; })
 
 const Promise = require('promise');
 
+var Bundler = require('../../Bundler');
+var FileWatcher = require('../../FileWatcher');
+var Server = require('../');
+var Server = require('../../Server');
+var AssetServer = require('../../AssetServer');
+
 describe('processRequest', () => {
   var server;
-  var Bundler;
-  var FileWatcher;
 
   const options = {
      projectRoots: ['root'],
@@ -47,9 +51,6 @@ describe('processRequest', () => {
   var triggerFileChange;
 
   beforeEach(() => {
-    Bundler = require('../../Bundler');
-    FileWatcher = require('../../FileWatcher');
-
     Bundler.prototype.bundle = jest.genMockFunction().mockImpl(() =>
       Promise.resolve({
         getSource: () => 'this is the source',
@@ -68,7 +69,6 @@ describe('processRequest', () => {
 
     Bundler.prototype.invalidateFile = invalidatorFunc;
 
-    const Server = require('../');
     server = new Server(options);
     requestHandler = server.processRequest.bind(server);
   });
@@ -172,7 +172,6 @@ describe('processRequest', () => {
 
       Bundler.prototype.bundle = bundleFunc;
 
-      const Server = require('../../Server');
       server = new Server(options);
 
       requestHandler = server.processRequest.bind(server);
@@ -232,11 +231,6 @@ describe('processRequest', () => {
   });
 
   describe('/assets endpoint', () => {
-    var AssetServer;
-    beforeEach(() => {
-      AssetServer = require('../../AssetServer');
-    });
-
     it('should serve simple case', () => {
       const req = {url: '/assets/imgs/a.png'};
       const res = {end: jest.genMockFn()};
diff --git a/react-packager/src/SocketInterface/__tests__/SocketClient-test.js b/react-packager/src/SocketInterface/__tests__/SocketClient-test.js
index 59477fcf..df8d8f09 100644
--- a/react-packager/src/SocketInterface/__tests__/SocketClient-test.js
+++ b/react-packager/src/SocketInterface/__tests__/SocketClient-test.js
@@ -13,26 +13,27 @@ jest.setMock('worker-farm', function() { return () => {}; })
     .mock('net')
     .dontMock('../SocketClient');
 
+var Bundle = require('../../Bundler/Bundle');
+var SocketClient = require('../SocketClient');
+var bser = require('bser');
+var net = require('net');
+
 describe('SocketClient', () => {
-  let SocketClient;
   let sock;
   let bunser;
 
   beforeEach(() => {
-    SocketClient = require('../SocketClient');
-
     const {EventEmitter} = require.requireActual('events');
     sock = new EventEmitter();
     sock.write = jest.genMockFn();
 
-    require('net').connect.mockImpl(() => sock);
+    net.connect.mockImpl(() => sock);
 
-    const bser = require('bser');
     bunser = new EventEmitter();
-    require('bser').BunserBuf.mockImpl(() => bunser);
+    bser.BunserBuf.mockImpl(() => bunser);
     bser.dumpToBuffer.mockImpl((a) => a);
 
-    require('../../Bundler/Bundle').fromJSON.mockImpl((a) => a);
+    Bundle.fromJSON.mockImpl((a) => a);
   });
 
   pit('create a connection', () => {
@@ -40,7 +41,7 @@ describe('SocketClient', () => {
     sock.emit('connect');
     return client.onReady().then(c => {
       expect(c).toBe(client);
-      expect(require('net').connect).toBeCalledWith('/sock');
+      expect(net.connect).toBeCalledWith('/sock');
     });
   });
 
diff --git a/react-packager/src/SocketInterface/__tests__/SocketInterface-test.js b/react-packager/src/SocketInterface/__tests__/SocketInterface-test.js
index d43d3586..729d2a1d 100644
--- a/react-packager/src/SocketInterface/__tests__/SocketInterface-test.js
+++ b/react-packager/src/SocketInterface/__tests__/SocketInterface-test.js
@@ -13,23 +13,19 @@ jest.setMock('worker-farm', function() { return () => {}; })
     .mock('child_process')
     .dontMock('../');
 
+var SocketInterface = require('../');
+var SocketClient = require('../SocketClient');
+var childProcess = require('child_process');
+var fs = require('fs');
+
 describe('SocketInterface', () => {
-  let SocketInterface;
-  let SocketClient;
-
-  beforeEach(() => {
-    SocketInterface = require('../');
-    SocketClient = require('../SocketClient');
-  });
-
   describe('getOrCreateSocketFor', () => {
     pit('creates socket path by hashing options', () => {
-      const fs = require('fs');
       fs.existsSync = jest.genMockFn().mockImpl(() => true);
       fs.unlinkSync = jest.genMockFn();
       let callback;
 
-      require('child_process').spawn.mockImpl(() => ({
+      childProcess.spawn.mockImpl(() => ({
         on: (event, cb) => callback = cb,
         send: (message) => {
           setImmediate(() => callback({ type: 'createdServer' }));
@@ -58,13 +54,12 @@ describe('SocketInterface', () => {
     });
 
     pit('should fork a server', () => {
-      const fs = require('fs');
       fs.existsSync = jest.genMockFn().mockImpl(() => false);
       fs.unlinkSync = jest.genMockFn();
       let sockPath;
       let callback;
 
-      require('child_process').spawn.mockImpl(() => ({
+      childProcess.spawn.mockImpl(() => ({
         on: (event, cb) => callback = cb,
         send: (message) => {
           expect(message.type).toBe('createSocketServer');
diff --git a/react-packager/src/SocketInterface/__tests__/SocketServer-test.js b/react-packager/src/SocketInterface/__tests__/SocketServer-test.js
index ae3e8e24..e006d612 100644
--- a/react-packager/src/SocketInterface/__tests__/SocketServer-test.js
+++ b/react-packager/src/SocketInterface/__tests__/SocketServer-test.js
@@ -14,26 +14,24 @@ jest.setMock('worker-farm', function() { return () => {}; })
     .mock('fs')
     .dontMock('../SocketServer');
 
+var PackagerServer = require('../../Server');
+var SocketServer = require('../SocketServer');
+var bser = require('bser');
+var net = require('net');
+
 describe('SocketServer', () => {
-  let PackagerServer;
-  let SocketServer;
   let netServer;
   let bunser;
 
   beforeEach(() => {
-    SocketServer = require('../SocketServer');
-
     const {EventEmitter} = require.requireActual('events');
     netServer = new EventEmitter();
     netServer.listen = jest.genMockFn();
-    require('net').createServer.mockImpl(() => netServer);
+    net.createServer.mockImpl(() => netServer);
 
-    const bser = require('bser');
     bunser = new EventEmitter();
     bser.BunserBuf.mockImpl(() => bunser);
     bser.dumpToBuffer.mockImpl((a) => a);
-
-    PackagerServer = require('../../Server');
   });
 
   pit('create a server', () => {
diff --git a/react-packager/src/lib/__tests__/getAssetDataFromName-test.js b/react-packager/src/lib/__tests__/getAssetDataFromName-test.js
index d6711001..ff61c405 100644
--- a/react-packager/src/lib/__tests__/getAssetDataFromName-test.js
+++ b/react-packager/src/lib/__tests__/getAssetDataFromName-test.js
@@ -11,13 +11,9 @@
 jest.dontMock('../getPlatformExtension')
     .dontMock('../getAssetDataFromName');
 
+var getAssetDataFromName = require('../getAssetDataFromName');
+
 describe('getAssetDataFromName', () => {
-  let getAssetDataFromName;
-
-  beforeEach(() => {
-    getAssetDataFromName = require('../getAssetDataFromName');
-  });
-
   it('should get data from name', () => {
     expect(getAssetDataFromName('a/b/c.png')).toEqual({
       resolution: 1,
diff --git a/react-packager/src/lib/__tests__/getPotentialPlatformExt-test.js b/react-packager/src/lib/__tests__/getPotentialPlatformExt-test.js
index 5f734880..f5ccdc3a 100644
--- a/react-packager/src/lib/__tests__/getPotentialPlatformExt-test.js
+++ b/react-packager/src/lib/__tests__/getPotentialPlatformExt-test.js
@@ -10,9 +10,10 @@
 
 jest.dontMock('../getPlatformExtension');
 
+var getPlatformExtension = require('../getPlatformExtension');
+
 describe('getPlatformExtension', function() {
   it('should get platform ext', function() {
-    var getPlatformExtension = require('../getPlatformExtension');
     expect(getPlatformExtension('a.ios.js')).toBe('ios');
     expect(getPlatformExtension('a.android.js')).toBe('android');
     expect(getPlatformExtension('/b/c/a.ios.js')).toBe('ios');