add tests for cli and bundle mode

package.json

@@ -47,9 +47,11 @@
     "btoa": "^1.1.1",
     "clean-css": "^2.1.6",
     "domready": "^1.0.4",
+    "jsdom": "^9.6.0",
     "marked": "^0.3.2",
     "prettysize": "0.0.3",
     "rework": "^0.20.2",
+    "shelljs": "^0.7.4",
     "tap-spec": "^2.1.2",
     "tape": "^3.0.3",
     "uglify-js": "^2.4.15"

test/bundle.js

@@ -1,11 +1,36 @@
 var bundle = require('../').bundle
 var test = require('tape')
 var fs = require('fs')
+var jsdom = require("jsdom")
+var shell = require('shelljs')
 
-test('bundle', function(t) {
-    bundle([fs.readFileSync(__dirname + '/fixture/sample-stats.json', 'utf8')], function(err, res) {
-        t.notOk(err)
-        t.ok(res)
-        t.end()
+test('bundle callback', function(t) {
+  bundle([fs.readFileSync(__dirname + '/fixture/sample-stats.json', 'utf8')], function(err, res) {
+    t.notOk(err, 'no error')
+    t.ok(res, 'index.html response okay')
+
+    jsdom.env(res, function(err, window) {
+      var div = window.document.createElement('div');
+      div.innerHTML = res;
+
+      t.equal(div.getElementsByClassName("chart").length, 1, 'svg chart div')
+    })
+
+    t.end()
+  })
+})
+
+test('bundle cli', function(t) {
+  shell.exec('./bin/electrify /fixture/sample-stats.json', function(code, stdout, stderr) {
+    t.notOk(stderr, 'no error')
+    t.ok(stdout, 'stdout index.html')
+    jsdom.env(stdout, function(err, window) {
+      var div = window.document.createElement('div');
+      div.innerHTML = stdout;
+
+      t.equal(div.getElementsByClassName("chart").length, 1, 'svg chart div')
     })
+  })
+
+  t.end()
 })