Integrate coveralls

.travis.yml

@@ -4,3 +4,7 @@ node_js:
   - "6.1"
   - "5.11"
   - "iojs"
+script:
+  - "npm run-script test-cov"
+after_success:
+  - "npm run-script report-cov"

README.md

@@ -1,6 +1,7 @@
 # Algorithms with JavaScript
 
   [![Build Status](https://travis-ci.org/yefremov/algorithms-with-javascript.svg?branch=master)](https://travis-ci.org/yefremov/algorithms-with-javascript)
+  [![Coverage Status](https://coveralls.io/repos/github/yefremov/algorithms-with-javascript/badge.svg?branch=master)](https://coveralls.io/github/yefremov/algorithms-with-javascript?branch=master)
 
   This is a collection of different algorithms, written in JavaScript.
   The purpose of this library is to define basic algorithms in a concise,

package.json

@@ -4,7 +4,9 @@
   "description": "Common programming algorithms written with JavaScript",
   "main": "index.js",
   "scripts": {
-    "test": "tape lib/**/*-test.js | tap-spec"
+    "test": "tape lib/**/*-test.js | tap-spec",
+    "test-cov": "nyc npm test",
+    "report-cov": "nyc report --reporter=text-lcov | coveralls"
   },
   "repository": {
     "type": "git",
@@ -17,6 +19,9 @@
   },
   "homepage": "https://github.com/yefremov/algorithms-with-javascript#readme",
   "devDependencies": {
+    "coveralls": "^2.11.15",
+    "nyc": "^10.1.2",
+    "tap-dot": "^1.0.5",
     "tap-spec": "^4.1.1",
     "tape": "^4.6.3"
   }