Adds coveralls coverage

.babelrc

@@ -1 +1,5 @@
-{ "presets": ["es2015"] }
+{
+  "presets": ["es2015"],
+  "plugins": ["istanbul"],
+  "sourceMaps": "both"
+}

.npmignore

@@ -0,0 +1 @@
+coverage/

README.md

@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.org/NYULibraries/primo-explore-libraryh3lp-widget.svg?branch=master)](https://travis-ci.org/NYULibraries/primo-explore-libraryh3lp-widget)
 [![npm version](https://img.shields.io/npm/v/primo-explore-libraryh3lp-widget.svg)](https://www.npmjs.com/package/primo-explore-libraryh3lp-widget)
+[![Coverage Status](https://coveralls.io/repos/github/NYULibraries/primo-explore-libraryh3lp-widget/badge.svg?branch=master)](https://coveralls.io/github/NYULibraries/primo-explore-libraryh3lp-widget?branch=master)
 
 ## Description
 

karma.conf.js

@@ -1,24 +1,27 @@
 module.exports = function(config) {
   config.set({
     frameworks: ['jasmine'],
-    reporters: ['spec'],
+    reporters: ['spec', 'coverage', 'coveralls'],
     browsers: ['PhantomJS'],
     files: [
       'spec/fixtures/**/*.json',
       'node_modules/angular/angular.js',
       'node_modules/angular-mocks/angular-mocks.js',
       'node_modules/@babel/polyfill/dist/polyfill.js',
       'js/**/*.js',
-      'spec/**/*.js',
       'spec/**/*.spec.js'
     ],
     preprocessors: {
-      'js/**/*.js': ['babel'],
-      'spec/**/*.spec.js': ['babel'],
+      'js/**/*.js': ['babel', 'sourcemap'],
+      'spec/**/*.spec.js': ['babel', 'sourcemap'],
       'spec/fixtures/**/*.json': ['json_fixtures'],
     },
     jsonFixturesPreprocessor: {
       stripPrefix: "spec/fixtures/"
-    }
+    },
+    coverageReporter: {
+       type: 'lcov',
+       dir: 'coverage/'
+     }
   });
 };

package.json

@@ -24,14 +24,18 @@
     "angular": "^1.6.9",
     "angular-mocks": "^1.6.9",
     "babel-core": "^6.26.0",
+    "babel-plugin-istanbul": "^4.1.6",
     "babel-preset-es2015": "^6.24.1",
     "jasmine-core": "^2.99.1",
     "karma": "^2.0.0",
     "karma-babel-preprocessor": "^7.0.0",
     "karma-chrome-launcher": "^2.2.0",
+    "karma-coverage": "^1.1.1",
+    "karma-coveralls": "^1.1.2",
     "karma-jasmine": "^1.1.1",
     "karma-json-fixtures-preprocessor": "^0.0.6",
     "karma-phantomjs-launcher": "^1.0.4",
+    "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "^0.0.32"
   },
   "homepage": "https://github.com/nyulibraries/primo-explore-libraryh3lp-widget#readme"