Add a full_title helper

app/helpers/application_helper.rb

-module ApplicationHelper
+# Returns the full title on a per-page basis.       # Documentation comment
+def full_title(page_title = "" )                     # Method def, optional arg
+  base_title = "Ruby on Rails Tutorial Sample App"  # Variable assignment
+  if page_title.empty?                              # Boolean test
+    base_title                                      # Implicit return
+  else
+    page_title + " | " + base_title                 # String concatenation
+  end
+end
 end

app/views/static_pages/home.html.erb

-<% provide(:title, "Home") %>
 <h1>Sample App</h1>
 <p>
   This is the home page for the

test/controllers/static_pages_controller_test.rb

@@ -2,35 +2,21 @@ require "test_helper"
 
 class StaticPagesControllerTest < ActionDispatch::IntegrationTest
 
-  #test "should get root" do
-   # get FILL_IN
-   # assert_response FILL_IN
-  #end
-
-  def setup
-    @base_title = "Ruby on Rails Tutorial Sample App"
-  end
   test "should get home" do
     get static_pages_home_url
     assert_response :success
-    assert_select "title", "Home | #{@base_title}"
+    assert_select "title", "Home | Ruby on Rails Tutorial Sample App"
   end
 
   test "should get help" do
     get static_pages_help_url
     assert_response :success
-    assert_select "title", "Help | #{@base_title}"
+    assert_select "title", "Help | Ruby on Rails Tutorial Sample App"
   end
 
   test "should get about" do
     get static_pages_about_url
     assert_response :success
-    assert_select "title", "About | #{@base_title}"
-  end
-
-  test "should get contact" do
-    get static_pages_about_url
-    assert_response :success
-    assert_response "title", "Contact | #{@base_title}"
+    assert_select "title", "About | Ruby on Rails Tutorial Sample App"
   end
 end