test: add test script

Author: freedomlang

package-lock.json

@@ -7,7 +7,9 @@
     "@babel/preset-env": "^7.1.0",
     "@babel/preset-flow": "^7.0.0",
     "@babel/preset-react": "^7.0.0",
+    "@babel/register": "^7.0.0",
     "babel-eslint": "^10.0.1",
+    "chai": "^4.2.0",
     "eslint": "^5.6.1",
     "eslint-config-prettier": "^3.1.0",
     "eslint-config-react": "^1.1.7",
@@ -25,12 +27,14 @@
     "flow-typed": "^2.5.1",
     "husky": "^1.1.1",
     "lerna": "^3.4.1",
+    "mocha": "^5.2.0",
     "prettier": "^1.14.3",
     "prettier-eslint": "^8.8.2",
     "prettier-eslint-cli": "^4.7.1",
     "to-fast-properties": "^2.0.0"
   },
   "scripts": {
+    "test": "./node_modules/.bin/mocha --require @babel/register \"./packages/*/!(node_modules)/**/__test__/*.js\"",
     "eslint-check": "eslint --print-config . | eslint-config-prettier-check",
     "docs": "./node_modules/.bin/gitbook serve",
     "storybook": "start-storybook -p 9001 -c .storybook",

package.json

@@ -5,7 +5,13 @@ import {
   convertFromRaw,
   SelectionState,
 } from 'draft-js'
-import { getCharCount, getWordCount, getLineCount, hasEntity, getCurrentEntityKey } from '../index'
+import {
+  getCharCount,
+  getWordCount,
+  getLineCount,
+  hasEntity,
+  getCurrentEntityKey,
+} from '../index'
 
 describe('Entity', () => {
   const createEditorStateFromRaw = raw => {