Merge pull request #1 from fisuda/add/testcase

Add test case

.gitignore

@@ -6,3 +6,5 @@ build/
 _SpecRunner.html
 src/js/.tern-port
 .DS_Store
+*.swp
+.coveralls.yml

.travis.yml

@@ -0,0 +1,17 @@
+language: node_js
+node_js:
+    - "lts/*"
+sudo: false
+addons:
+    chrome: stable
+    firefox: latest-esr
+
+before_install:
+    - npm install grunt-cli -g
+
+script:
+    - xvfb-run grunt ci
+
+branches:
+    only:
+        - master

Gruntfile.js

@@ -120,9 +120,6 @@ module.exports = function (grunt) {
                     'src/js/*.js',
                     'tests/js/*Spec.js'
                 ],
-                exclude: [
-                    'src/js/main.js',
-                ],
                 frameworks: ['jasmine'],
                 reporters: ['progress', 'coverage'],
                 browsers: ['Chrome', 'Firefox'],

README.md

@@ -1,5 +1,10 @@
 # remove null operator operator
 
+[![](https://nexus.lab.fiware.org/repository/raw/public/badges/chapters/visualization.svg)](https://www.fiware.org/developers/catalogue/)
+[![License: MIT](https://img.shields.io/github/license/lets-fiware/remove-null-operator.svg)](https://opensource.org/licenses/MIT)<br/>
+[![Build Status](https://travis-ci.org/lets-fiware/remove-null-operator.svg?branch=master)](https://travis-ci.org/lets-fiware/remove-null-operator)
+[![Coverage Status](https://coveralls.io/repos/github/lets-fiware/remove-null-operator/badge.svg)](https://coveralls.io/github/lets-fiware/remove-null-operator)
+
 The remove null operator operator is a WireCloud operator that provides ...
 
 ## Build dependencies