public void Sort_shouldReturn_SortedbyCostList() { RealtyManagement sortedList = new RealtyManagement(); CreateRealties(); sortedList.ShowRealties = realtyManagement.Sort(2); Assert.IsTrue(sortedList.ShowRealties[0] == realty1 && sortedList.ShowRealties[1] == realty3 && sortedList.ShowRealties[2] == realty2); }