add reset for testing purposes

Author: chrisbreiding

index.js

@@ -5,7 +5,7 @@ const debug = require('debug')('cypress:webpack')
 const createDeferred = require('./deferred')
 const stubbableRequire = require('./stubbable-require')
 
-const bundles = {}
+let bundles = {}
 
 // we don't automatically load the rules, so that the babel dependencies are
 // not required if a user passes in their own configuration
@@ -200,4 +200,9 @@ Object.defineProperty(preprocessor, 'defaultOptions', {
   },
 })
 
+// for testing purposes
+preprocessor.__reset = () => {
+  bundles = {}
+}
+
 module.exports = preprocessor

test/e2e/e2e_spec.js

@@ -13,6 +13,7 @@ describe('webpack preprocessor - e2e', () => {
   let filePath
 
   beforeEach(() => {
+    preprocessor.__reset()
     fs.removeSync(path.join(__dirname, '_test-output'))
 
     const originalFilePath = path.join(__dirname, '..', 'fixtures', 'example_spec.js')