diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..ba2a97b
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,2 @@
+node_modules
+coverage
diff --git a/.eslintrc.js b/.eslintrc.js
index 84c1b3c..0ad5447 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,3 +1,9 @@
-const { eslintTS } = require('./lib/eslintTS');
+const { eslint, deepmerge } = require('./lib');
 
-module.exports = eslintTS;
+const eslintConfig = deepmerge(eslint, {
+  env: {
+    jest: true
+  }
+});
+
+module.exports = eslintConfig;
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..f9df002
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,12 @@
+sudo: required
+language: node_js
+node_js:
+  - '10'
+script:
+  - npm run lint
+  - npm run test
+after_success:
+  - npm run coverage
+cache:
+  directories:
+    - node_modules
diff --git a/README.md b/README.md
index a92523d..d7d6ea9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # spec
 
+[![NPM version](https://img.shields.io/npm/v/@ice/spec.svg?style=flat)](https://npmjs.org/package/@ice/spec) [![Package Quality](https://npm.packagequality.com/shield/@ice%2Fspec.svg)](https://packagequality.com/#?package=@ice%2Fspec) [![build status](https://img.shields.io/travis/ice-lab/icespec.svg?style=flat-square)](https://travis-ci.com/ice-lab/spec) [![Test coverage](https://img.shields.io/codecov/c/github/ice-lab/spec.svg?style=flat-square)](https://codecov.io/gh/ice-lab/spec) [![NPM downloads](http://img.shields.io/npm/dm/@ice/spec.svg?style=flat)](https://npmjs.org/package/@ice/spec) [![David deps](https://img.shields.io/david/ice-lab/spec.svg?style=flat-square)](https://david-dm.org/ice-lab/spec)
+
 Easy to use eslint/stylelint/prettier. And spec means specification.
 
 ## Features
diff --git a/lib/deepmerge.js b/lib/deepmerge.js
new file mode 100644
index 0000000..2e68c01
--- /dev/null
+++ b/lib/deepmerge.js
@@ -0,0 +1,18 @@
+module.exports = function(target, source) {
+  // deep clone
+  const newObj = JSON.parse(JSON.stringify(target));
+
+  Object.keys(source).forEach((key) => {
+    const type = Object.prototype.toString.call(source[key]);
+
+    if (type === '[object Array]') {
+      newObj[key] = [...target[key], ...source[key]];
+    } else if (type === '[object Object]') {
+      newObj[key] = {...target[key], ...source[key]};
+    } else {
+      newObj[key] = source[key];
+    }
+  });
+
+  return newObj;
+};
diff --git a/lib/eslint.js b/lib/eslint.js
index 915db0d..a03ee77 100644
--- a/lib/eslint.js
+++ b/lib/eslint.js
@@ -5,7 +5,7 @@ module.exports = {
     ecmaVersion: 2018,
     ecmaFeatures: {
       jsx: true,
-    }
+    },
   },
   extends: [
     /** Airbnb JavaScript Style Guide https://github.com/airbnb/javascript#types */
@@ -15,12 +15,12 @@ module.exports = {
     require.resolve('eslint-config-prettier/react'),
   ],
   plugins: [
-    'react-hooks'
+    'react-hooks',
   ],
   env: {
     es6: true,
     browser: true,
-    node: true
+    node: true,
   },
   rules: {
     /** React Hooks Style Guide https://reactjs.org/docs/hooks-rules.html */
@@ -57,8 +57,8 @@ module.exports = {
     "react/jsx-filename-extension": [
       1,
       {
-        "extensions": [".js", ".jsx"]
-      }
+        "extensions": [".js", ".jsx"],
+      },
     ],
     // 不允许使用 dangerous 属性：取消
     "react/no-danger": 0,
@@ -112,5 +112,5 @@ module.exports = {
     "no-plusplus": 0,
     // 强制语句结尾必须加逗号：开启
     "semi": ["error", "always"],
-  }
-}
+  },
+};
diff --git a/lib/index.js b/lib/index.js
index 1674afd..99a5fb5 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,3 +1,5 @@
+/* eslint-disable global-require */
+
 module.exports = {
   eslint: require('./eslint'),
   tslint: require('./tslint'),
@@ -7,5 +9,5 @@ module.exports = {
   // deprecated, please use tslint
   eslintTS: require('./tslint'),
 
-  deepmerge: require('deepmerge'),
+  deepmerge: require('./deepmerge'),
 };
diff --git a/lib/stylelint.js b/lib/stylelint.js
index 159147c..9c74ef3 100644
--- a/lib/stylelint.js
+++ b/lib/stylelint.js
@@ -11,5 +11,5 @@ module.exports = {
   ],
   rules: {
     "no-empty-source": null,
-  }
+  },
 };
diff --git a/lib/tslint.js b/lib/tslint.js
index ead14f6..230193d 100644
--- a/lib/tslint.js
+++ b/lib/tslint.js
@@ -1,10 +1,10 @@
 const eslint = require('./eslint');
-const deepmerge = require('deepmerge')
+const deepmerge = require('./deepmerge');
 
 module.exports = deepmerge(eslint, {
   parser: require.resolve("@typescript-eslint/parser"),
   extends: [
-    "plugin:@typescript-eslint/recommended"
+    "plugin:@typescript-eslint/recommended",
   ],
   plugins: ["@typescript-eslint"],
   rules: {
@@ -21,7 +21,7 @@ module.exports = deepmerge(eslint, {
       accessibility: 'explicit',
       overrides: {
         constructors: 'no-public',
-      }
-    }]
-  }
+      },
+    }],
+  },
 });
diff --git a/package.json b/package.json
index 7dfc7f7..e656fc2 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,16 @@
 {
   "name": "@ice/spec",
-  "version": "0.1.8",
+  "version": "0.1.9",
   "description": "eslint/stylelint/editorconfig",
   "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "lint": "eslint --cache --ext .ts,.tsx,.js,.jsx ./",
+    "test": "jest",
+    "coverage": "codecov",
+    "prepublishOnly": "npm run lint && npm run test"
   },
   "repository": {
     "type": "git",
@@ -28,7 +34,6 @@
     "@typescript-eslint/eslint-plugin": "^1.11.0",
     "@typescript-eslint/parser": "^1.11.0",
     "babel-eslint": "^10.0.2",
-    "deepmerge": "^3.3.0",
     "eslint-config-airbnb": "^17.1.1",
     "eslint-config-prettier": "^6.0.0",
     "eslint-plugin-import": "^2.18.0",
@@ -43,6 +48,14 @@
     "stylelint-scss": "^3.8.0"
   },
   "devDependencies": {
+    "codecov": "^3.6.1",
+    "eslint": "^6.7.1",
+    "jest": "^24.9.0",
+    "stylelint": "^12.0.0",
     "typescript": "^3.5.3"
+  },
+  "jest": {
+    "coverageDirectory": "./coverage/",
+    "collectCoverage": true
   }
 }
diff --git a/test/index.test.js b/test/index.test.js
new file mode 100644
index 0000000..706a005
--- /dev/null
+++ b/test/index.test.js
@@ -0,0 +1,44 @@
+const { deepmerge, eslint } = require('../lib');
+
+it('set one rule should be replaced', () => {
+  const result = deepmerge(eslint, {
+    rules: {
+      "comma-dangle": [1, "never"],
+    },
+  });
+
+  expect(result.rules['comma-dangle']).toEqual([1, "never"]);
+});
+
+it('root should be replaced', () => {
+  const result = deepmerge(eslint, {
+    root: false,
+  });
+
+  expect(result.root).toEqual(false);
+});
+
+it('parserOptions should be merged', () => {
+  const result = deepmerge(eslint, {
+    parserOptions: {
+      ecmaVersion: 2017,
+      ecmaFeatures: {
+        js: true,
+      },
+    },
+  });
+
+  expect(result.parserOptions.ecmaVersion).toEqual(2017);
+  expect(result.parserOptions.ecmaFeatures).toEqual({
+    js: true,
+  });
+  expect(result.parserOptions.ecmaFeatures.jsx).toEqual(undefined);
+});
+
+it('plugins should be merged', () => {
+  const result = deepmerge(eslint, {
+    plugins: ['react-xxx'],
+  });
+  expect(result.plugins[0]).toEqual('react-hooks');
+  expect(result.plugins[1]).toEqual('react-xxx');
+});