less files on the root dir

package.json

@@ -12,12 +12,12 @@
   },
   "scripts": {
     "build": "rollup -c && rollup -c --environment PROD",
-    "browserstack": "npm run build && cross-env browser=true karma start karma.conf.js",
+    "browserstack": "npm run build && cross-env browser=true karma start tests/karma.conf.js",
     "coveralls": "shx cat tests/coverage/lcov.info | coveralls",
     "dev": "rollup --environment DEV -c -w",
     "js-lint": "eslint ./src ./tests",
     "prejs-test": "cross-env NODE_ENV=test rollup -c --environment TEST",
-    "js-test": "karma start karma.conf.js",
+    "js-test": "karma start tests/karma.conf.js",
     "release": "npm run build && standard-version",
     "test": "npm run js-lint && npm run js-test"
   },

karma.conf.js → tests/karma.conf.js

@@ -6,17 +6,18 @@ const {
   browsersKeys,
 } = require('./browsers')
 
-const coveragePath = path.resolve(__dirname, 'tests/coverage')
+const coveragePath = path.resolve(__dirname, 'coverage')
 const browserTest = process.env.browser === 'true'
 
 module.exports = function(config) {
   const conf = {
+    basePath: '../',
     frameworks: ['chai', 'mocha', 'sinon'],
     files: [
       'tests/coverage/bs-custom-file-input.js',
       'tests/polyfill.js',
-      'tests/index.spec.js',
-      'tests/util.spec.js',
+      'tests/units/index.spec.js',
+      'tests/units/util.spec.js',
     ],
     exclude: [
       'tests/*.html',

tests/mocha.html

@@ -17,8 +17,8 @@
       mocha.setup('bdd')
       window.expect = chai.expect
     </script>
-    <script src="index.spec.js"></script>
-    <script src="util.spec.js"></script>
+    <script src="units/index.spec.js"></script>
+    <script src="units/util.spec.js"></script>
     <script>
       document.addEventListener('DOMContentLoaded', function() {
         mocha.checkLeaks()