private static async Task <ImageData> RunFileTestAsync(string imageFileName, bool deleteFile, bool runTest)
{
if (imageFileName is null)
{
throw new ArgumentNullException(nameof(imageFileName));
}
if (imageFileName.Length == 0)
{
throw new ArgumentException("path must not be empty string", nameof(imageFileName));
}
var myPictures = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
var cacheFileName = Path.Combine(myPictures, imageFileName);
var cacheFile = new FileInfo(cacheFileName);
if (deleteFile && cacheFile.Exists)
{
cacheFile.Delete();
}
var cache = new CachingStrategy
{
new FileCacheLayer(cacheFile.Directory)
};
var imageRequest = new ImageRequest(
new Uri("https://www.seanmcbeth.com"),
"2015-05.min.jpg");
var imageDecoder = new TranscoderCodec <BitMiracle.LibJpeg.JpegImage, ImageData>(
new LibJpegNETCodec(80),
new LibJpegNETImageDataTranscoder());
var actual = await cache
.LoadAsync(imageDecoder, imageRequest)
.ConfigureAwait(false);
if (runTest)
{
var path = Path.Combine(myPictures, "portrait-expected.jpg");
using var stream = FileDataSource.Instance.GetStream(path);
var expected = imageDecoder.Deserialize(stream);
var expectedData = expected.GetData();
var actualData = actual.GetData();
Assert.AreEqual(expected.Info.Dimensions.Width, actual.Info.Dimensions.Width);
Assert.AreEqual(expected.Info.Dimensions.Height, actual.Info.Dimensions.Height);
Assert.AreEqual(expectedData.Length, actualData.Length);
for (var i = 0; i < expectedData.Length; ++i)
{
Assert.AreEqual(expectedData[i], actualData[i]);
}
}
return(actual);
}
public async Task GetImageAsync()
{
var search = new TileRequest(apiKey, signingKey, new Size(640, 640))
{
Zoom = 20,
Address = "4909 Rutland Pl, Alexandria, VA, 22304"
};
var decoder = new TranscoderCodec <Hjg.Pngcs.ImageLines, ImageData>(
new HjgPngcsCodec(),
new HjgPngcsImageDataTranscoder());
var results = await cache
.LoadAsync(decoder, search)
.ConfigureAwait(false);
Assert.IsNotNull(results);
Assert.AreEqual(640, results.Info.Dimensions.Width);
Assert.AreEqual(640, results.Info.Dimensions.Height);
}