Add first spec!

spec/controllers/home_controller_spec.rb

@@ -0,0 +1,10 @@
+require 'spec_helper'
+
+describe HomeController do
+  describe "GET index" do
+    it "responds with success" do
+      get :index
+      expect(response).to be_successful
+    end
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,38 @@
+# This file is copied to spec/ when you run 'rails generate rspec:install'
+ENV["RAILS_ENV"] ||= 'test'
+require File.expand_path("../../config/environment", __FILE__)
+require 'rspec/rails'
+require 'rspec/autorun'
+
+# Requires supporting ruby files with custom matchers and macros, etc,
+# in spec/support/ and its subdirectories.
+Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
+
+RSpec.configure do |config|
+  # ## Mock Framework
+  #
+  # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
+  #
+  # config.mock_with :mocha
+  # config.mock_with :flexmock
+  # config.mock_with :rr
+
+  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
+  config.fixture_path = "#{::Rails.root}/spec/fixtures"
+
+  # If you're not using ActiveRecord, or you'd prefer not to run each of your
+  # examples within a transaction, remove the following line or assign false
+  # instead of true.
+  config.use_transactional_fixtures = true
+
+  # If true, the base class of anonymous controllers will be inferred
+  # automatically. This will be the default behavior in future versions of
+  # rspec-rails.
+  config.infer_base_class_for_anonymous_controllers = false
+
+  # Run specs in random order to surface order dependencies. If you find an
+  # order dependency and want to debug it, you can fix the order by providing
+  # the seed, which is printed after each run.
+  #     --seed 1234
+  config.order = "random"
+end