Adding test coverage

.travis.yml

@@ -1,8 +1,7 @@
 language: node_js
 node_js:
+  - "stable"
   - "4"
-  - "0.12"
-  - "0.11"
-  - "0.10"
-  - "0.8"
-  - "0.6"
+sudo: false
+script:
+   - npm run-script test:ci

ReadMe.md

@@ -1,5 +1,6 @@
-# colors.js [![Build Status](https://travis-ci.org/Marak/colors.js.svg?branch=master)](https://travis-ci.org/Marak/colors.js)
-
+# colors.js
+[![Build Status](https://travis-ci.org/Marak/colors.js.svg?branch=master)](https://travis-ci.org/Marak/colors.js)
+[![coverage](https://img.shields.io/coveralls/MeriemKhelifi/colors.js.svg)](https://coveralls.io/github/MeriemKhelifi/colors.js)
 ## get color and style in your node.js console
 
 ![Demo](https://raw.githubusercontent.com/Marak/colors.js/master/screenshots/colors.png)

package.json

@@ -1,28 +1,38 @@
 {
-    "name": "colors",
-    "description": "get colors in your node.js console",
-    "version": "1.1.2",
-    "author": "Marak Squires",
-    "homepage": "https://github.com/Marak/colors.js",
-    "bugs": "https://github.com/Marak/colors.js/issues",
-    "keywords": [ "ansi", "terminal", "colors" ],
-    "repository": {
-        "type": "git",
-        "url": "http://github.com/Marak/colors.js.git"
-    },
-    "license": "MIT",
-    "scripts": {
-      "test": "node tests/basic-test.js && node tests/safe-test.js"
-    },
-    "engines": {
-        "node": ">=0.1.90"
-    },
-    "main": "lib",
-    "files": [
-        "examples",
-        "lib",
-        "LICENSE",
-        "safe.js",
-        "themes"
-    ]
+  "name": "colors",
+  "description": "get colors in your node.js console",
+  "version": "1.1.2",
+  "author": "Marak Squires",
+  "homepage": "https://github.com/Marak/colors.js",
+  "bugs": "https://github.com/Marak/colors.js/issues",
+  "keywords": [
+    "ansi",
+    "terminal",
+    "colors"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/Marak/colors.js.git"
+  },
+  "license": "MIT",
+  "scripts": {
+    "test": "node tests/basic-test.js && node tests/safe-test.js",
+    "test:coverage": "istanbul cover  tests/*.js",
+    "test:ci": "istanbul cover tests/*.js && cat coverage/lcov.info | coveralls"
+  },
+  "engines": {
+    "node": ">=0.1.90"
+  },
+  "main": "lib",
+  "files": [
+    "examples",
+    "lib",
+    "LICENSE",
+    "safe.js",
+    "themes"
+  ],
+  "devDependencies": {
+    "coveralls": "2.12.0",
+    "istanbul": "0.4.5"
+  }
 }