added back babel-polyfill

test/JavaScriptObfuscator.spec.ts

@@ -1,9 +1,13 @@
+import { BabelPolyfill } from 'polyfills/BabelPolyfill';
+
 import { JavaScriptObfuscator } from "../src/JavaScriptObfuscator";
 
 import { NO_CUSTOM_NODES_PRESET } from "../src/preset-options/NoCustomNodesPreset";
 
 const assert: Chai.AssertStatic = require('chai').assert;
 
+BabelPolyfill.append();
+
 describe('JavaScriptObfuscator', () => {
     describe('obfuscate (sourceCode: string, customOptions?: IOptionsPreset): string', () => {
         it('should obfuscate simple code with variable inside global scope', () => {

test/JavaScriptObfuscatorCLI.spec.ts

@@ -2,12 +2,16 @@ import * as fs from 'fs';
 import * as mkdirp from 'mkdirp';
 import * as sinon from 'sinon';
 
+import { BabelPolyfill } from 'polyfills/BabelPolyfill';
+
 import { StdoutWriteMock } from "../test/mocks/StdoutWriteMock";
 
 import { JavaScriptObfuscator } from "../src/JavaScriptObfuscator";
 
 const assert: Chai.AssertStatic = require('chai').assert;
 
+BabelPolyfill.append();
+
 describe('JavaScriptObfuscatorCLI', function (): void {
     let fixturesDirName: string = 'test/fixtures',
         fixtureFileName: string = 'sample.js',

test/NodeUtils.spec.ts

@@ -1,3 +1,5 @@
+import { BabelPolyfill } from 'polyfills/BabelPolyfill';
+
 import { IBlockStatementNode } from "../src/interfaces/nodes/IBlockStatementNode";
 import { IFunctionDeclarationNode } from "../src/interfaces/nodes/IFunctionDeclarationNode";
 import { IIdentifierNode } from "../src/interfaces/nodes/IIdentifierNode";
@@ -12,6 +14,8 @@ import { NodeUtils } from '../src/NodeUtils';
 
 const assert: any = require('chai').assert;
 
+BabelPolyfill.append();
+
 function getProgramNode (bodyNodes: INode[] = []): IProgramNode {
     return {
         type: NodeType.Program,

test/OptionsNormalizer.spec.ts

@@ -1,3 +1,5 @@
+import { BabelPolyfill } from 'polyfills/BabelPolyfill';
+
 import { IOptionsPreset } from "../src/interfaces/IOptionsPreset";
 
 import { OptionsNormalizer } from '../src/OptionsNormalizer';
@@ -6,6 +8,8 @@ import { DEFAULT_PRESET } from '../src/preset-options/DefaultPreset';
 
 const assert: Chai.AssertStatic = require('chai').assert;
 
+BabelPolyfill.append();
+
 describe('OptionsNormalizer', () => {
     describe('normalizeOptionsPreset (options: IOptionsPreset): IOptionsPreset', () => {
         let optionsPreset1: IOptionsPreset = Object.assign({}, DEFAULT_PRESET, {

test/Utils.spec.ts

@@ -1,9 +1,13 @@
+import { BabelPolyfill } from 'polyfills/BabelPolyfill';
+
 import { Utils } from '../src/Utils';
 
 import { JSFuck } from '../src/enums/JSFuck';
 
 const assert: Chai.AssertStatic = require('chai').assert;
 
+BabelPolyfill.append();
+
 describe('Utils', () => {
     describe('arrayContains (array: any[], searchElement: any): boolean', () => {
         it('should return boolean depends on condition if array is contains given value or not', () => {

test/polyfills/BabelPolyfill.ts

@@ -0,0 +1,7 @@
+export class BabelPolyfill {
+    public static append (): void {
+        if (!(<any>global)._babelPolyfill) {
+            require('babel-polyfill');
+        }
+    }
+}