private static void SetDimensions(IFocalPointData focalPointData)
{
if (!focalPointData.IsReadOnly && focalPointData.BinaryData != null)
{
using (var stream = focalPointData.BinaryData.OpenRead()) {
try {
var size = ImageDimensionService.GetDimensions(stream);
if (size.IsValid)
{
if (focalPointData.OriginalHeight != size.Height)
{
Logger.Information($"Setting height for {focalPointData.Name} to {size.Height}.");
focalPointData.OriginalHeight = size.Height;
}
if (focalPointData.OriginalWidth != size.Width)
{
Logger.Information($"Setting width for {focalPointData.Name} to {size.Width}.");
focalPointData.OriginalWidth = size.Width;
}
}
else
{
Logger.Information($"Could not read size of {focalPointData.Name}.");
}
} catch (Exception ex) {
Logger.Error($"Could not read size of {focalPointData.Name}, data might be corrupt.", ex);
}
}
}
}
public void GetDimensions_StreamContainsNonImageFile_ReturnsSizeEmpty()
{
using (var stream = File.OpenRead("..\\..\\TestData\\nonimage.pdf")) {
var size = ImageDimensionService.GetDimensions(stream);
size.IsValid.ShouldBe(false);
}
}
public void GetDimensions_StreamContainsFileOfType_ReturnsCorrectSize(string extension)
{
using (var stream = File.OpenRead($"..\\..\\TestData\\FileTypes\\TestImage.{extension}")) {
var size = ImageDimensionService.GetDimensions(stream);
size.IsValid.ShouldBe(true);
size.Width.ShouldBe(500);
size.Height.ShouldBe(500);
}
}
public void GetDimensions_StreamContainsJpeg_ReturnsCorrectSize(string fileNamePart)
{
var dimensions = fileNamePart.Split(new[] { 'x' }, StringSplitOptions.RemoveEmptyEntries);
var expectedWidth = int.Parse(dimensions[0]);
var expectedHeight = int.Parse(dimensions[1]);
using (var stream = File.OpenRead($"..\\..\\TestData\\Dimensions\\{fileNamePart}.jpg")) {
var size = ImageDimensionService.GetDimensions(stream);
size.IsValid.ShouldBe(true);
size.Width.ShouldBe(expectedWidth);
size.Height.ShouldBe(expectedHeight);
}
}
public void ImageDimensionService_GetDimensions()
{
var stopWatch = new Stopwatch();
long memoryUsed = 0;
stopWatch.Start();
{
var memoryCheckPoint1 = dotMemory.Check();
foreach (var file in fixture.Files)
{
using (var stream = file.OpenRead()) {
var size = ImageDimensionService.GetDimensions(stream);
}
}
var memoryCheckPoint2 = dotMemory.Check(memory => {
memoryUsed = memory.GetTrafficFrom(memoryCheckPoint1).AllocatedMemory.SizeInBytes;
});
}
stopWatch.Stop();
testOutputHelper.WriteLine($"Using {nameof(ImageDimensionService.GetDimensions)} to get size of {fixture.Files.Count()} images took {stopWatch.ElapsedMilliseconds} ms. Memory used was {memoryUsed} bytes.");
Assert.True(true);
}
public void GetDimensions_StreamCannotRead_ThrowsException()
{
Action action = () => ImageDimensionService.GetDimensions(Stream.Null);
action.ShouldThrow <ArgumentNullException>();
}
