CalDavDataAccessIntegrationTests.FixtureBase.UpdateEntityWithWrongVersion C# (CSharp) Метод

    public async Task UpdateEntityWithWrongVersion ()
    {
      var calendar = CreateEntity (1);
      var v = await _calDavDataAccess.CreateEntity (
          SerializeCalendar (calendar),
          calendar.Events[0].UID);

      calendar.Events[0].Summary += "xxx";

      var v2 = await _calDavDataAccess.TryUpdateEntity (
          v.Id,
          v.Version,
          SerializeCalendar (calendar));

      calendar.Events[0].Summary += "xxx";

      Assert.That (
          await _calDavDataAccess.TryUpdateEntity (
              v.Id,
              v.Version,
              SerializeCalendar (calendar)),
          Is.Null);
    }