Update capybara to last version

spec/features/user_sign_up_spec.rb

@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+feature 'User sign up' do
+  let(:user) { FactoryGirl.build(:user) }
+
+  background do
+    visit new_user_path
+    fill_in 'Email', :with => user.email
+    fill_in 'Password', :with => user.password
+    fill_in 'Password confirmation', :with => user.password
+  end
+
+  scenario 'creates the user' do
+    expect {
+      click_button 'Sign up'
+    }.to change(User, :count).by(1)
+  end
+
+  scenario 'redirects to the home page' do
+    click_button 'Sign up'
+
+    current_path.should == root_path
+  end
+end