diff --git a/.eslintrc b/.eslintrc
index 4601220..f0e0ec7 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,4 +1,8 @@
 {
+    "env": {
+        "node": true,
+        "mocha": true
+    },
     "extends": [
       "rocketmq-style"
     ]
diff --git a/package.json b/package.json
index ceb809e..8f257f2 100644
--- a/package.json
+++ b/package.json
@@ -13,8 +13,10 @@
     "nan": "^2.11.1"
   },
   "devDependencies": {
+    "chai": "^4.2.0",
     "co": "^4.6.0",
     "eslint": "^5.9.0",
-    "eslint-config-rocketmq-style": "^1.0.0"
+    "eslint-config-rocketmq-style": "^1.0.0",
+    "mocha": "^5.2.0"
   }
 }