Add coverage

.travis.yml

@@ -1,4 +1,10 @@
 language: node_js
 
 node_js:
-  - "8"
+- stable
+
+install:
+- npm install
+
+script:
+- npm run cover

README.md

@@ -2,6 +2,7 @@
 
 [![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)
 [![Build Status](https://travis-ci.org/codetheweb/tuyapi.svg?branch=master)](https://travis-ci.org/codetheweb/tuyapi)
+[![Coverage Status](https://coveralls.io/repos/github/codetheweb/tuyapi/badge.svg?branch=master)](https://coveralls.io/github/codetheweb/tuyapi?branch=master)
 
 A library for communicating with devices that use the [Tuya](http://tuya.com) cloud network. These devices are branded under many different names, but if port 6668 is open on your device chances are this library will work with it.
 Currently only supports smart plugs, but it should be fairly trivial to add other types of devices.
@@ -50,7 +51,7 @@ See the [docs](docs/API.md).
 1. Add automated tests
 2. Document details of protocol
 3. Retry when ECONNRESET is thrown
-4. Figure out correct CRC algorithm 
+4. Figure out correct CRC algorithm
 
 ## Contributors
 

index.js

@@ -15,12 +15,12 @@ const Parser = require('./lib/message-parser');
 /*
 * Check arguments for all functions, throw error if invalid
 * Check open issues on Github
-* Run style linter / tests
 * Parallel resolveIds()?
 * Use develop branch
 * Update docs on setup
 * Update docs for DPS
 * Add comments in code
+* Add coverage
 */
 
 /**