public void AddTimeUnits_returnsValueFromProcessor()
{
//Arrange
Mock <ITimeframeProcessor> mockProcessor = new Mock <ITimeframeProcessor>();
DateTime expectedDateTime = new DateTime();
mockProcessor.Setup(p => p.AddTimeUnits(It.IsAny <DateTime>(), It.IsAny <int>(), It.IsAny <int>())).Returns(expectedDateTime);
Timeframe timeframe = defaultTimeframe();
timeframe.InjectTimeframeProcessor(mockProcessor.Object);
//Act.
DateTime datetime = timeframe.AddTimeUnits(new DateTime(), 5);
//Assert.
Assert.AreEqual(expectedDateTime, datetime);
}