Chapter 7 exercises

app/helpers/users_helper.rb

@@ -1,7 +1,8 @@
 module UsersHelper
 
-	def gravatar_for(user)
+	def gravatar_for(user, options = { size: 50 })
 		gravatar_id = Digest::MD5::hexdigest(user.email.downcase)
+		size = options[:size]
 		gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}"
 		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' %>

app/views/users/show.html.erb

@@ -3,7 +3,7 @@
 	<aside class="span4">
 		<section>
 			<h1>
-				<%= gravatar_for @user %>
+				<%= gravatar_for @user, size: 40 %>
 				<%= @user.name %>
 			</h1>
 		</section>

spec/requests/user_pages_spec.rb

@@ -20,6 +20,13 @@
         it "should not create a user" do
           expect { click_button submit }.not_to change(User, :count)
         end
+
+        describe "after submission" do
+          before { click_button submit }
+
+          it { should have_title('Sign up') }
+          it { should have_content('error') }
+        end
       end
 
       describe "with valid information" do
@@ -30,6 +37,14 @@
           fill_in "Confirmation", with: "foobar"
         end
 
+        describe "after saving the user" do
+          before { click_button submit }
+          let(:user) { User.find_by(email: 'user@example.com') }
+
+          it { should have_title(user.name) }
+          it {should have_selector('div.alert.alert-success', text: 'Welcome')}
+        end
+
         it "should create a user" do
           expect { click_button submit }.to change(User, :count)
         end