Add a simple Capybara test

* Add Rakefile to run tests with `rake`
* Add a `test_helper` to take care of the setup that Capybara requires
  in order to run
* Add a super basic test to see if Capybara works
* Put app in a `Sinatra::Base` subclass so that we can tell Capybara
  where to find it

1 files changed, 5 insertions, 3 deletions

diff --git a/app.rb b/app.rb
index baa9640..6f61f5b 100644
--- a/app.rb
+++ b/app.rb
@@ -1,6 +1,8 @@
-require 'sinatra'
+require 'sinatra/base'
 
 
-get '/' do
-  'Hello World'
+class App < Sinatra::Base
+  get '/' do
+    'Hello World'
+  end
 end