public async Task ExampleUsage1()
{
DirectoryEntry dir = EnvironmentV2.instance.GetOrAddTempFolder("Download_ExampleUsage1").CreateV2();
IFileRef f = new FileRef()
{
url = "https://raw.githubusercontent.com/cs-util-com/cscore/master/LICENSE"
};
bool wasDownloadNeeded = await f.DownloadTo(dir, (float progress) => {
Log.d($"Download {progress}% done");
}, useAutoCachedFileRef : true);
string licenseText = f.GetFileEntry(dir.FileSystem).LoadAs <string>();
Assert.Equal(11344, licenseText.Length);
}
public async Task TestImageFileRef()
{
var dir = EnvironmentV2.instance.GetOrAddTempFolder("TestImageFileWithThumbnail");
var imgRef = new FileRef()
{
url = "https://picsum.photos/1024/512"
};
await imgRef.DownloadTo(dir);
Log.d("FileRef: " + JsonWriter.AsPrettyString(imgRef));
Assert.NotNull(imgRef.url);
Assert.NotNull(imgRef.fileName);
Assert.NotNull(imgRef.dir);
FileEntry imgEntry = imgRef.GetFileEntry(dir.FileSystem);
var img = await ImageLoader.LoadImageInBackground(imgEntry);
Assert.Equal(1024, img.Width);
Assert.Equal(512, img.Height);
}
public async Task TestLargeFileDownloadWithProgress()
{
var dir = EnvironmentV2.instance.GetOrAddTempFolder("TestLargeFileDownloadWithProgress");
// Url from https://gist.github.com/jsturgis/3b19447b304616f18657
var f = new FileRef()
{
url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"
};
await Assert.ThrowsAsync <TaskCanceledException>(async() => {
await f.DownloadTo(dir, downloadProgress => {
if (downloadProgress > 5)
{
throw new TaskCanceledException("Download canceled after 5%");
}
});
});
Assert.NotNull(f.url);
// Local values should only be set after successful download to have a more atomic predicatable behavior:
Assert.Null(f.fileName);
Assert.Null(f.dir);
Log.d("FileRef: " + JsonWriter.AsPrettyString(f));
}