Change update type

Instead of doing something that requires a schema change, we'll
just update a validation which *should* work

app/models/book.rb

@@ -1,2 +1,4 @@
 class Book < ApplicationRecord
+  validates :title, presence: true
+  # validates :year_published, numericality: { only_integer: true }
 end

db/schema.rb

@@ -22,7 +22,7 @@
     t.text     "description"
     t.datetime "created_at",     null: false
     t.datetime "updated_at",     null: false
-    # t.string   "website"
+    t.string   "website"
   end
 
 end

spec/features/books_spec.rb

@@ -12,11 +12,23 @@
       inception in 2005, and is used by small development shops and giants like
       Google, Red Hat, and IBM, and of course many open source projects.
       EOF
-      # fill_in "Website", with: "https://git-scm.com/book/en/v2"
+      fill_in "Website", with: "https://git-scm.com/book/en/v2"
       fill_in "Year published", with: "2009"
     end
 
     click_button "Create"
     expect(page).to have_text "Created"
   end
+
+  # TODO: Replace `skip` with `it`
+  skip "validates a numeric year" do
+    visit "/books/new"
+    within "#as_books-create--form" do
+      fill_in "Title", with: "Pro Git"
+      fill_in "Year published", with: "taco"
+    end
+
+    click_button "Create"
+    expect(page).to have_text "Year published is not a number"
+  end
 end