[#4604] Add a method and rake task to clear and update all TimeEntry cost caches

test/unit/rate_test.rb

@@ -301,4 +301,33 @@ class RateTest < ActiveSupport::TestCase
       assert Time.parse(Setting.plugin_redmine_rate['last_caching_run']), "Last run timestamp not parseable"
     end
   end
+
+  context "#update_all_time_entries_to_refresh_cache" do
+    setup do
+      @user = User.generate!
+      @project = Project.generate!
+      @date = Date.today.to_s
+      @rate = Rate.generate!(:user => @user, :project => @project, :date_in_effect => @date, :amount => 200.0)
+      @time_entry1 = TimeEntry.generate!({:user => @user, :project => @project, :spent_on => @date, :hours => 10.0, :activity => TimeEntryActivity.generate!})
+      @time_entry2 = TimeEntry.generate!({:user => @user, :project => @project, :spent_on => @date, :hours => 20.0, :activity => TimeEntryActivity.generate!})
+    end
+    
+    should "update the caches of all Time Entries" do
+      assert_equal "0", ActiveRecord::Base.connection.select_all('select count(*) as count from time_entries where cost IS NULL').first["count"]
+
+      Rate.update_all_time_entries_to_refresh_cache
+
+      assert_equal "0", ActiveRecord::Base.connection.select_all('select count(*) as count from time_entries where cost IS NULL').first["count"]
+
+    end
+    
+    should "timestamp a successful run" do
+      assert_equal nil, Setting.plugin_redmine_rate['last_cache_clearing_run']
+
+      Rate.update_all_time_entries_to_refresh_cache
+
+      assert Setting.plugin_redmine_rate['last_cache_clearing_run'], "Last run not timestamped"
+      assert Time.parse(Setting.plugin_redmine_rate['last_cache_clearing_run']), "Last run timestamp not parseable"
+    end
+  end
 end