Add nyc and coveralls (#597)

.gitignore

@@ -9,3 +9,4 @@ bulk2ssd_pop.config
 libpeerconnection.log
 yarn.lock
 package-lock.json
+.nyc_output/

.travis.yml

@@ -22,3 +22,5 @@ matrix:
 
 script:
   - DEBUG=airtap:* npm run $CMD
+
+after_success: npm run coverage

README.md

@@ -4,9 +4,10 @@
 [![npm](https://img.shields.io/npm/v/levelup.svg)](https://www.npmjs.com/package/levelup)
 ![Node version](https://img.shields.io/node/v/levelup.svg)
 [![Build Status](https://secure.travis-ci.org/Level/levelup.svg?branch=master)](http://travis-ci.org/Level/levelup)
-[![david](https://david-dm.org/Level/levelup.svg)](https://david-dm.org/level/levelup)
-[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
+[![dependencies](https://david-dm.org/Level/levelup.svg)](https://david-dm.org/level/levelup)
 [![npm](https://img.shields.io/npm/dm/levelup.svg)](https://www.npmjs.com/package/levelup)
+[![Coverage Status](https://coveralls.io/repos/github/Level/levelup/badge.svg)](https://coveralls.io/github/Level/levelup)
+[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
 
 ## Table of Contents
 

package.json

@@ -31,11 +31,12 @@
     "browserify": "^16.0.0",
     "bustermove": "~1.0.0",
     "concat-stream": "~1.6.0",
+    "coveralls": "~3.0.2",
     "delayed": "~1.0.1",
     "encoding-down": "^5.0.0",
-    "faucet": "~0.0.1",
     "level-community": "~3.0.0",
     "memdown": "^3.0.0",
+    "nyc": "~12.0.2",
     "pinkie": "~2.0.4",
     "referee": "~1.2.0",
     "remark-cli": "^5.0.0",
@@ -49,7 +50,8 @@
     "trickle": "0.0.2"
   },
   "scripts": {
-    "test": "standard && node test | faucet",
+    "test": "standard && nyc node test",
+    "coverage": "nyc report --reporter=text-lcov | coveralls",
     "test-browsers": "airtap --sauce-connect --loopback airtap.local --no-coverage test/index.js",
     "test-browser-local": "airtap --local --no-coverage test/index.js",
     "remark": "remark README.md CHANGELOG.md UPGRADING.md CONTRIBUTORS.md -o"