Add show functionality

app/controllers/workouts_controller.rb

@@ -2,4 +2,8 @@ class WorkoutsController < ApplicationController
   def index
     @workouts = Workout.all
   end
+
+  def show
+    @workout = Workout.find(params[:id])
+  end
 end

app/views/workouts/show.html.erb

@@ -0,0 +1 @@
+<%= @workout.date %>

spec/features/workouts_spec.rb

@@ -16,4 +16,16 @@ describe "Workouts" do
       page.should have_content @workout.date
     end
   end
+
+  describe "GET /workouts/(:id)" do
+    it "should return 200" do
+      visit "#{workouts_path}/#{@workout.id}"
+      page.status_code.should be 200
+    end
+
+    it "should return the correct workout" do
+      visit "#{workouts_path}/#{@workout.id}"
+      page.should have_content @workout.date
+    end
+  end
 end