Add test to reproduce the problem

Author: ishikawa999

test/unit/activity_test.rb

@@ -132,6 +132,24 @@ def test_event_group_for_wiki_content_version
     assert_equal content.page, content.event_group
   end
 
+  def test_activity_contains_issue_status_update_events
+    issue = Issue.generate!(:status_id => 1)
+    issue.init_journal(User.first, "Change Status")
+    issue.status_id = 2
+    assert issue.save
+
+    events = find_events(User.anonymous, :project => @project)
+    target_issue_events = events.find_all { |event| event == issue || (event.is_a?(Journal) && event.issue == issue ) }
+    target_issue_events.sort! { |x, y| x.event_datetime <=> y.event_datetime }
+
+    event_titles = target_issue_events.map{ |e| e.event_title }
+    assert_equal("Bug ##{issue.id} (New): Generated", event_titles[0], "event title should includes (New)")
+    assert_equal("Bug ##{issue.id} (Assigned): Generated", event_titles[1], "event title should includes (Assinged)")
+  end
+
+  # TODO: test when no journal
+  # TODO: test when three or more journal
+
   class TestActivityProviderWithPermission
     def self.activity_provider_options
       {'test' => {:permission => :custom_permission}}