Add selenium-webdriver.

Gemfile

@@ -36,6 +36,7 @@ group :development, :test do
   gem 'jasmine-rails'
   gem 'sinon-rails'
   gem 'capybara'
+  gem 'selenium-webdriver'
   gem 'poltergeist'
   gem 'database_cleaner'
   gem 'quiet_assets'

Gemfile.lock

@@ -37,6 +37,8 @@ GEM
       rack (>= 1.0.0)
       rack-test (>= 0.5.4)
       xpath (~> 2.0)
+    childprocess (0.5.3)
+      ffi (~> 1.0, >= 1.0.11)
     chunky_png (1.3.1)
     cliver (0.3.2)
     coderay (1.1.0)
@@ -63,6 +65,7 @@ GEM
     factory_girl_rails (4.4.1)
       factory_girl (~> 4.4.0)
       railties (>= 3.0.0)
+    ffi (1.9.6)
     fssm (0.2.10)
     hike (1.2.3)
     i18n (0.7.0)
@@ -157,12 +160,18 @@ GEM
       rspec-core (~> 2.99.0)
       rspec-expectations (~> 2.99.0)
       rspec-mocks (~> 2.99.0)
+    rubyzip (1.1.6)
     sass (3.2.19)
     sass-rails (4.0.3)
       railties (>= 4.0.0, < 5.0)
       sass (~> 3.2.0)
       sprockets (~> 2.8, <= 2.11.0)
       sprockets-rails (~> 2.0)
+    selenium-webdriver (2.42.0)
+      childprocess (>= 0.5.0)
+      multi_json (~> 1.0)
+      rubyzip (~> 1.0)
+      websocket (~> 1.0.4)
     sinon-rails (1.10.3)
       railties (>= 3.1)
     slop (3.6.0)
@@ -187,6 +196,7 @@ GEM
       json (>= 1.8.0)
     warden (1.2.3)
       rack (>= 1.0)
+    websocket (1.0.7)
     websocket-driver (0.3.4)
     xpath (2.0.0)
       nokogiri (~> 1.3)
@@ -219,6 +229,7 @@ DEPENDENCIES
   rspec-its
   rspec-rails (~> 2.99.0)
   sass-rails (~> 4.0.3)
+  selenium-webdriver
   sinon-rails
   sqlite3
   transitions (= 0.1.9)