diff --git a/github-electron/github-electron-main-tests.ts b/github-electron/github-electron-main-tests.ts
index b2343da39..08fb95b79 100644
--- a/github-electron/github-electron-main-tests.ts
+++ b/github-electron/github-electron-main-tests.ts
@@ -16,12 +16,11 @@ import {
 	crashReporter,
 	nativeImage,
 	screen,
-	shell
+	shell,
+	hideInternalModules
 } from 'electron';
 
-require('electron').hideInternalModules();
-
-import path = require('path');
+import * as path from 'path';
 
 // Quick start
 // https://github.com/atom/electron/blob/master/docs/tutorial/quick-start.md
@@ -106,6 +105,10 @@ app.on('ready', () => {
 
 	mainWindow.printToPDF({}, (err, data) => {});
 	mainWindow.webContents.printToPDF({}, (err, data) => {});
+
+	mainWindow.webContents.executeJavaScript('return true;');
+	mainWindow.webContents.executeJavaScript('return true;', true);
+	mainWindow.webContents.executeJavaScript('return true;', true, (result: boolean) => console.log(result));
 });
 
 // Locale
diff --git a/github-electron/github-electron-renderer-tests.ts b/github-electron/github-electron-renderer-tests.ts
index 7ddd585a7..31bd5a32e 100644
--- a/github-electron/github-electron-renderer-tests.ts
+++ b/github-electron/github-electron-renderer-tests.ts
@@ -10,7 +10,7 @@ import {
 	shell
 } from 'electron';
 
-import fs = require('fs');
+import * as fs from 'fs';
 
 // In renderer process (web page).
 // https://github.com/atom/electron/blob/master/docs/api/ipc-renderer.md
diff --git a/github-electron/github-electron.d.ts b/github-electron/github-electron.d.ts
index f7bab797f..3bb70fc33 100644
--- a/github-electron/github-electron.d.ts
+++ b/github-electron/github-electron.d.ts
@@ -636,7 +636,7 @@ declare module Electron {
 		 * Evaluates code in page.
 		 * @param code Code to evaluate.
 		 */
-		executeJavaScript(code: string): void;
+		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): void;
 		/**
 		 * Executes Edit -> Undo command in page.
 		 */
@@ -1597,7 +1597,7 @@ declare module Electron {
  		 * invoked by a gesture from the user. Setting `userGesture` to `true` will remove
  		 * this limitation.
 		 */
-		executeJavaScript(code: string, userGesture?: boolean): void;
+		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): void;
 	}
 
 	// Type definitions for main process