public void GetImageAsByteArray_WhenCannotReadNewImageFromCacheAndCanReadFromWebCam_ReturnImageFromWebCam(int userId, int cacheUpdaterUserId)
{
// Arrange
const string userUtc = "some_UTC_value";
_dateTimeProvider.DateTimeNow.Returns(new DateTime(2019, 05, 01, 15, 30, 30, 100));
(int waitTimeMilliSec, string reason)valueTuple = (0, "");
_imageFromCacheService.WaitBeforeGettingNextImage(Arg.Any <int>(), Arg.Any <DateTime>()).Returns(valueTuple);
_imageFromCacheService.GetNewImageAsByteArray(Arg.Any <int>(), Arg.Any <DateTime>()).Returns((byte[])null);
_cacheUpdater.Update(userId: cacheUpdaterUserId, lastUpdate: DateTime.MinValue);
var imageFromWebCam = new Bitmap(1, 1);
byte[] imageArrayFromWebCam = ImageHelper.ConvertImageToByteArray(imageFromWebCam);
_imageFromWebCamService.GetImage(Arg.Any <string>()).Returns(imageFromWebCam);
IImageProviderService imageProviderService = CreateValidImageProviderService();
// Act
bool canReadImageFromWebCam = imageProviderService.CanReadImageFromWebCam(userId, _dateTimeProvider.DateTimeNow);
byte[] imageAsByteArray = imageProviderService.GetImageAsByteArray(userId, userUtc);
// Assert
Assert.That(canReadImageFromWebCam, Is.True);
Assert.That(imageAsByteArray, Is.Not.Null);
Assert.That(imageAsByteArray.Length, Is.EqualTo(imageArrayFromWebCam.Length));
Assert.That(_cacheUpdater.LastUpdate, Is.EqualTo(_dateTimeProvider.DateTimeNow));
Assert.That(_cacheUpdater.UserId, Is.EqualTo(userId));
}
private (byte[] imageByteArray, DateTime requestTime) ReadNewImageFromCache(int userId)
{
_imageFromCacheService.WaitBeforeGettingNextImage(userId: userId, timeRequested: GetLastCacheAccess(userId));
DateTime requestTime = _dateTimeProvider.DateTimeNow;
byte[] imageByteArray = _imageFromCacheService.GetNewImageAsByteArray(userId: userId, timeRequested: requestTime);
return(imageByteArray, requestTime);
}