Adds a test for #23054.

git-svn-id: http://svn.redmine.org/redmine/trunk@15533 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/timelog_controller_test.rb

@@ -527,6 +527,15 @@ class TimelogControllerTest < ActionController::TestCase
     assert_equal ["0", "0"], TimeEntry.where(:id => [1, 2]).collect {|i| i.custom_value_for(10).value}
   end
 
+  def test_bulk_update_clear_custom_field
+    field = TimeEntryCustomField.generate!(:field_format => 'string')
+    @request.session[:user_id] = 2
+    post :bulk_update, :ids => [1, 2], :time_entry => { :custom_field_values => {field.id.to_s => '__none__'} }
+
+    assert_response 302
+    assert_equal ["", ""], TimeEntry.where(:id => [1, 2]).collect {|i| i.custom_value_for(field).value}
+  end
+
   def test_post_bulk_update_should_redirect_back_using_the_back_url_parameter
     @request.session[:user_id] = 2
     post :bulk_update, :ids => [1,2], :back_url => '/time_entries'