public async Task BlockBlobWriteStreamFlushTestAsync()
{
byte[] buffer = GetRandomBuffer(512 * 1024);
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudBlockBlob blob = container.GetBlockBlobReference("blob1");
blob.StreamWriteSizeInBytes = 1 * 1024 * 1024;
using (MemoryStream wholeBlob = new MemoryStream())
{
OperationContext opContext = new OperationContext();
using (ICloudBlobStream blobStream = await blob.OpenWriteAsync(null, null, opContext))
{
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer.AsBuffer());
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
}
Assert.AreEqual(1, opContext.RequestResults.Count);
await blobStream.FlushAsync();
Assert.AreEqual(2, opContext.RequestResults.Count);
await blobStream.FlushAsync();
Assert.AreEqual(2, opContext.RequestResults.Count);
await blobStream.WriteAsync(buffer.AsBuffer());
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(2, opContext.RequestResults.Count);
await blobStream.CommitAsync();
Assert.AreEqual(4, opContext.RequestResults.Count);
}
Assert.AreEqual(4, opContext.RequestResults.Count);
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob.AsOutputStream());
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob);
}
}
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public async Task PageBlobWriteStreamFlushTestAsync()
{
byte[] buffer = GetRandomBuffer(512);
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
blob.StreamWriteSizeInBytes = 1024;
using (MemoryStream wholeBlob = new MemoryStream())
{
BlobRequestOptions options = new BlobRequestOptions()
{
StoreBlobContentMD5 = true
};
OperationContext opContext = new OperationContext();
using (ICloudBlobStream blobStream = await blob.OpenWriteAsync(4 * 512, null, options, opContext))
{
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer.AsBuffer());
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
}
Assert.AreEqual(2, opContext.RequestResults.Count);
await blobStream.FlushAsync();
Assert.AreEqual(3, opContext.RequestResults.Count);
await blobStream.FlushAsync();
Assert.AreEqual(3, opContext.RequestResults.Count);
await blobStream.WriteAsync(buffer.AsBuffer());
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(3, opContext.RequestResults.Count);
await blobStream.CommitAsync();
Assert.AreEqual(5, opContext.RequestResults.Count);
}
Assert.AreEqual(5, opContext.RequestResults.Count);
using (MemoryOutputStream downloadedBlob = new MemoryOutputStream())
{
await blob.DownloadToStreamAsync(downloadedBlob);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob.UnderlyingStream);
}
}
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}