use imported webpack in api test

Author: Barak Igal

test/api.test.js

@@ -1,10 +1,11 @@
+import webpack from 'webpack';
+
 import MiniCssExtractPlugin from '../src';
 
-import { getCompiler } from './helpers'
+
 
 describe('API', () => {
   it('should return the same CssModule when same webpack instance provided', () => {
-    const { webpack } = getCompiler('');
     expect(MiniCssExtractPlugin.getCssModule(webpack)).toEqual(MiniCssExtractPlugin.getCssModule(webpack));
   });
 });