public void ShowOverviewTest()
        {
            DataCreator dataCreate = new DataCreator();
            var         lines      = new List <string> {
                "test1 10.10.2010 500 ", "test1 11.10.2010 600 ", "test2 12.10.2010 700 "
            };

            dataCreate.LinesIntoData(lines);

            Overview oView  = new Overview();
            var      result = oView.ShowOverview(new DateTime(2010, 10, 30), dataCreate.AllData);

            Assert.AreEqual(result,
                            new List <string> {
                "test1: 500 EUR ", "test1: 600 EUR ", "test2: 700 EUR "
            });
        }