diff -r f5c7cc60ead2 test/ui/avatar_test_ur.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/ui/avatar_test_ur.rb	Mon May 08 20:48:10 2017 +0900
@@ -0,0 +1,44 @@
+require File.expand_path('../base', __FILE__)
+
+module Redmine
+  module UiTest
+    class AvatarTest < Redmine::UiTest::Base
+      fixtures :projects, :users, :email_addresses, :roles, :members,
+               :member_roles, :trackers, :projects_trackers, :enabled_modules,
+               :issue_statuses, :issues, :enumerations
+
+      def test_create_issue_with_assignee_when_disable_gravatar
+        with_settings gravatar_enabled: '0' do
+          login_and_create do
+            assert page.has_no_css? 'img'
+          end
+        end
+      end
+
+      def test_create_issue_with_assignee_when_enable_gravatar
+        with_settings gravatar_enabled: '1' do
+          login_and_create do
+            assert page.has_css? 'img', 2
+            assert page.has_css? 'img.gravatar', 1
+          end
+        end
+      end
+
+      private
+
+      def login_and_create
+        log_user('jsmith', 'jsmith')
+        visit '/projects/ecookbook/issues/new'
+        within('form#issue-form') do
+          fill_in 'Subject', with: 'Issue with Assignee except author'
+
+          select 'Dave Lopper', from: 'issue_assigned_to_id'
+          find('input[name=commit]').click
+        end
+        assert page.has_css?('div.gravatar-with-child') do
+          yield
+        end
+      end
+    end
+  end
+end