/// <summary>
/// Finds the file in a filesystem snapshot. The location of the file is ignored, so not 100% but good enough.
/// </summary>
public CloudItem Find(FilesystemSnapshot filesystem)
{
var file = TryFind(filesystem);
if (file == null)
throw new ArgumentException("File was not found in cloud filesystem: " + Name);
return file;
}
/// <summary>
/// Uploads and downloads random bytes of the specified length and verifies content integrity.
/// Useful to ensure that we do not freak out with some special size due to math errors.
/// </summary>
private async Task TestFileUploadAndDownload(int size, FilesystemSnapshot filesystem, IFeedbackChannel feedback)
{
var data = TestHelper.GetRandomBytes(size);
// Just stick it in the root, do not care about what already exists there.
CloudItem file;
using (var stream = new MemoryStream(data))
file = await filesystem.Files.NewFileAsync(size.ToString(), stream, feedback);
var target = Path.GetTempFileName();
try
{
await file.DownloadContentsAsync(target, feedback);
using (var contents = File.OpenRead(target))
using (var expectedContents = new MemoryStream(data))
TestHelper.AssertStreamsAreEqual(expectedContents, contents);
}
finally
{
File.Delete(target);
}
}
/// <summary>
/// Attempts to find the file in a filesystem snapshot. The location of the file is ignored, so not 100% but good enough.
/// </summary>
public CloudItem TryFind(FilesystemSnapshot filesystem)
{
return filesystem.AllItems
.FirstOrDefault(ci => ci.Type == ItemType.File && ci.Name == Name && ci.Size.GetValueOrDefault() == Size);
}
