public void GetRangeOfBars_ListHolds2_Returns1() { // Arrange var fromIndex = 0; var length = 1; var rangeBars = new List <Bar>(); rangeBars.Add(defaultBar); mockUnitOfWork.BarRepository.GetXBars(fromIndex, length) .Returns(rangeBars); // Act var result = uut.GetRangeOfBars(fromIndex, length); var objectResult = result as OkObjectResult; var listResult = objectResult.Value as List <BarSimpleDto>; // Assert Assert.That(result, Is.TypeOf <OkObjectResult>()); mockUnitOfWork.BarRepository.Received(1).GetXBars(fromIndex, length); Assert.That(listResult[0].BarName, Is.EqualTo(correctResultList[0].BarName)); Assert.That(listResult.Count, Is.EqualTo(1)); }