Chapter 7 Exercises

app/helpers/users_helper.rb

@@ -1,8 +1,9 @@
 module UsersHelper
 	#Returns the Gravatar (http://gravatar.com/) for the given user.
-	def gravatar_for(user)
+	def gravatar_for(user, options = { size: 50 })
 		gravatar_id = Digest::MD5::hexdigest(user.email.downcase)
-		gravatar_url = "http://gravatar.com/avatar/#{gravatar_id}.png"
+		size = options[:size]
+		gravatar_url = "http://gravatar.com/avatar/#{gravatar_id}.png?s=#{size}"
 		image_tag(gravatar_url, alt: user.name, class: "gravatar")
 	end
 

app/views/layouts/application.html.erb

@@ -11,7 +11,7 @@
 		<%= render 'layouts/header' %>
 		<div class="container">
 			<% flash.each do |key, value| %>
-				<div class="alert alert-<%= key %>"><%= value %></div>
+				<%= content_tag(:div, value, class: "alert alert-#{key}") %>
 			<% end %>
 			<%= yield %>
 			<%= render 'layouts/footer' %>

config/locales/en.yml

@@ -2,4 +2,7 @@
 # See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
 
 en:
-  hello: "Hello world"
+  activerecord:
+    attributes:
+      user:
+        password_digest: "Password"

spec/requests/user_pages_spec.rb

@@ -28,6 +28,13 @@
 			it "should not create a user" do
 				expect { click_button "Create my account" }.not_to change(User, :count)
 			end
+
+			describe "error messages" do
+				before { click_button "Create my account" }
+
+				it { should have_selector('title', text: 'Sign up') }
+				it { should have_content('error') }
+			end
 		end
 
 		describe "with valid information" do
@@ -43,6 +50,15 @@
 					click_button "Create my account"
 				end.to change(User, :count).by(1)
 			end
+
+			describe "after saving the user" do
+				before { click_button "Create my account" }
+				let(:user) { User.find_by_email('user@example.com') }
+
+				it { should have_selector('title', text: user.name) }
+				it { should have_selector('div.alert.alert-success', text: 'Welcome') }
+			end 
+
 		end
 	end
 end