public async Task CloudPageBlobUploadDownloadNoDataAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob");
await TestHelper.ExpectedExceptionAsync <ArgumentNullException>(
async() => await blob.UploadFromStreamAsync(null),
"Uploading from a null stream should fail");
using (MemoryStream stream = new MemoryStream())
{
await blob.UploadFromStreamAsync(stream.AsInputStream());
}
await TestHelper.ExpectedExceptionAsync <ArgumentNullException>(
async() => await blob.DownloadToStreamAsync(null),
"Downloading to a null stream should fail");
using (MemoryStream stream = new MemoryStream())
{
await blob.DownloadToStreamAsync(stream.AsOutputStream());
Assert.AreEqual(0, stream.Length);
}
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public void TplDownloadMultipleBlobsTest()
{
MemoryStream blobData1 = new MemoryStream(GetRandomBuffer(2 * 1024));
MemoryStream blobData2 = new MemoryStream(GetRandomBuffer(2 * 1024));
MemoryStream downloaded1 = new MemoryStream();
MemoryStream downloaded2 = new MemoryStream();
CloudPageBlob blob1 = this.testContainer.GetPageBlobReference("blob1");
CloudPageBlob blob2 = this.testContainer.GetPageBlobReference("blob2");
Task[] uploadTasks = new Task[]
{
blob1.UploadFromStreamAsync(blobData1),
blob2.UploadFromStreamAsync(blobData2)
};
Task.WaitAll(uploadTasks);
Task[] downloadTasks = new Task[]
{
blob1.DownloadToStreamAsync(downloaded1),
blob2.DownloadToStreamAsync(downloaded2)
};
Task.WaitAll(downloadTasks);
TestHelper.AssertStreamsAreEqual(blobData1, downloaded1);
TestHelper.AssertStreamsAreEqual(blobData2, downloaded2);
blobData1.Dispose();
blobData2.Dispose();
downloaded1.Dispose();
downloaded2.Dispose();
}
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())
{
OperationContext opContext = new OperationContext();
using (CloudBlobStream blobStream = await blob.OpenWriteAsync(4 * 512, null, null, opContext))
{
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer, 0, buffer.Length);
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, 0, buffer.Length);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(3, opContext.RequestResults.Count);
await Task.Factory.FromAsync(blobStream.BeginCommit, blobStream.EndCommit, null);
Assert.AreEqual(4, opContext.RequestResults.Count);
}
Assert.AreEqual(4, opContext.RequestResults.Count);
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob);
}
}
}
finally
{
container.DeleteIfExistsAsync().Wait();
}
}
public async Task CloudPageBlobSetPropertiesAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
await blob.CreateAsync(1024);
string eTag = blob.Properties.ETag;
DateTimeOffset lastModified = blob.Properties.LastModified.Value;
await Task.Delay(1000);
blob.Properties.CacheControl = "no-transform";
blob.Properties.ContentEncoding = "gzip";
blob.Properties.ContentLanguage = "tr,en";
blob.Properties.ContentMD5 = "MDAwMDAwMDA=";
blob.Properties.ContentType = "text/html";
await blob.SetPropertiesAsync();
Assert.IsTrue(blob.Properties.LastModified > lastModified);
Assert.AreNotEqual(eTag, blob.Properties.ETag);
CloudPageBlob blob2 = container.GetPageBlobReference("blob1");
await blob2.FetchAttributesAsync();
Assert.AreEqual("no-transform", blob2.Properties.CacheControl);
Assert.AreEqual("gzip", blob2.Properties.ContentEncoding);
Assert.AreEqual("tr,en", blob2.Properties.ContentLanguage);
Assert.AreEqual("MDAwMDAwMDA=", blob2.Properties.ContentMD5);
Assert.AreEqual("text/html", blob2.Properties.ContentType);
CloudPageBlob blob3 = container.GetPageBlobReference("blob1");
using (MemoryStream stream = new MemoryStream())
{
BlobRequestOptions options = new BlobRequestOptions()
{
DisableContentMD5Validation = true,
};
await blob3.DownloadToStreamAsync(stream.AsOutputStream(), null, options, null);
}
AssertAreEqual(blob2.Properties, blob3.Properties);
BlobResultSegment results = await container.ListBlobsSegmentedAsync(null);
CloudPageBlob blob4 = (CloudPageBlob)results.Results.First();
AssertAreEqual(blob2.Properties, blob4.Properties);
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public async Task PageBlobWriteStreamRandomSeekTestAsync()
{
byte[] buffer = GetRandomBuffer(3 * 1024 * 1024);
CloudBlobContainer container = GetRandomContainerReference();
container.ServiceClient.ParallelOperationThreadCount = 2;
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
using (MemoryStream wholeBlob = new MemoryStream())
{
using (IOutputStream writeStream = await blob.OpenWriteAsync(buffer.Length))
{
Stream blobStream = writeStream.AsStreamForWrite();
TestHelper.ExpectedException <ArgumentOutOfRangeException>(
() => blobStream.Seek(1, SeekOrigin.Begin),
"Page blob stream should not allow unaligned seeks");
await blobStream.WriteAsync(buffer, 0, buffer.Length);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Random random = new Random();
for (int i = 0; i < 10; i++)
{
int offset = random.Next(buffer.Length / 512) * 512;
SeekRandomly(blobStream, offset);
await blobStream.WriteAsync(buffer, 0, buffer.Length - offset);
wholeBlob.Seek(offset, SeekOrigin.Begin);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length - offset);
}
}
wholeBlob.Seek(0, SeekOrigin.End);
await blob.FetchAttributesAsync();
Assert.IsNull(blob.Properties.ContentMD5);
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob.AsOutputStream());
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob);
}
}
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public async Task PageBlobWriteStreamBasicTestAsync()
{
byte[] buffer = GetRandomBuffer(3 * 1024 * 1024);
CryptographicHash hasher = HashAlgorithmProvider.OpenAlgorithm("MD5").CreateHash();
CloudBlobClient blobClient = GenerateCloudBlobClient();
blobClient.ParallelOperationThreadCount = 2;
string name = GetRandomContainerName();
CloudBlobContainer container = blobClient.GetContainerReference(name);
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
using (MemoryStream wholeBlob = new MemoryStream())
{
BlobRequestOptions options = new BlobRequestOptions()
{
StoreBlobContentMD5 = true,
};
using (IOutputStream writeStream = await blob.OpenWriteAsync(buffer.Length * 3, null, options, null))
{
Stream blobStream = writeStream.AsStreamForWrite();
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer, 0, buffer.Length);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(wholeBlob.Position, blobStream.Position);
hasher.Append(buffer.AsBuffer());
}
}
string md5 = CryptographicBuffer.EncodeToBase64String(hasher.GetValueAndReset());
await blob.FetchAttributesAsync();
Assert.AreEqual(md5, blob.Properties.ContentMD5);
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob.AsOutputStream());
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob);
}
}
}
finally
{
container.DeleteAsync().AsTask().Wait();
}
}
private async Task CloudPageBlobUploadFromStreamAsync(int startOffset)
{
byte[] buffer = GetRandomBuffer(1 * 1024 * 1024);
CryptographicHash hasher = HashAlgorithmProvider.OpenAlgorithm("MD5").CreateHash();
hasher.Append(buffer.AsBuffer(startOffset, buffer.Length - startOffset));
string md5 = CryptographicBuffer.EncodeToBase64String(hasher.GetValueAndReset());
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
using (MemoryStream originalBlob = new MemoryStream())
{
originalBlob.Write(buffer, startOffset, buffer.Length - startOffset);
using (MemoryStream sourceStream = new MemoryStream(buffer))
{
sourceStream.Seek(startOffset, SeekOrigin.Begin);
BlobRequestOptions options = new BlobRequestOptions()
{
StoreBlobContentMD5 = true,
};
await blob.UploadFromStreamAsync(sourceStream.AsInputStream(), null, options, null);
}
await blob.FetchAttributesAsync();
Assert.AreEqual(md5, blob.Properties.ContentMD5);
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob.AsOutputStream());
TestHelper.AssertStreamsAreEqual(originalBlob, downloadedBlob);
}
}
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
private async Task CloudPageBlobUploadFromStreamAsync(CloudBlobContainer container, int size, AccessCondition accessCondition, OperationContext operationContext, int startOffset)
{
byte[] buffer = GetRandomBuffer(size);
CryptographicHash hasher = HashAlgorithmProvider.OpenAlgorithm("MD5").CreateHash();
hasher.Append(buffer.AsBuffer(startOffset, buffer.Length - startOffset));
string md5 = CryptographicBuffer.EncodeToBase64String(hasher.GetValueAndReset());
CloudPageBlob blob = container.GetPageBlobReference("blob1");
blob.StreamWriteSizeInBytes = 512;
using (MemoryStream originalBlob = new MemoryStream())
{
originalBlob.Write(buffer, startOffset, buffer.Length - startOffset);
using (MemoryStream sourceStream = new MemoryStream(buffer))
{
sourceStream.Seek(startOffset, SeekOrigin.Begin);
BlobRequestOptions options = new BlobRequestOptions()
{
StoreBlobContentMD5 = true,
};
await blob.UploadFromStreamAsync(sourceStream.AsInputStream(), accessCondition, options, operationContext);
}
await blob.FetchAttributesAsync();
Assert.AreEqual(md5, blob.Properties.ContentMD5);
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob.AsOutputStream());
TestHelper.AssertStreamsAreEqual(originalBlob, downloadedBlob);
}
}
}
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();
}
}
public async Task PageBlobWriteStreamBasicTestAsync()
{
byte[] buffer = GetRandomBuffer(6 * 512);
CryptographicHash hasher = HashAlgorithmProvider.OpenAlgorithm("MD5").CreateHash();
CloudBlobContainer container = GetRandomContainerReference();
container.ServiceClient.DefaultRequestOptions.ParallelOperationThreadCount = 2;
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
blob.StreamWriteSizeInBytes = 8 * 512;
using (MemoryStream wholeBlob = new MemoryStream())
{
BlobRequestOptions options = new BlobRequestOptions()
{
StoreBlobContentMD5 = true,
};
using (IOutputStream writeStream = await blob.OpenWriteAsync(buffer.Length * 3, null, options, null))
{
Stream blobStream = writeStream.AsStreamForWrite();
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer, 0, buffer.Length);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(wholeBlob.Position, blobStream.Position);
hasher.Append(buffer.AsBuffer());
}
await blobStream.FlushAsync();
}
string md5 = CryptographicBuffer.EncodeToBase64String(hasher.GetValueAndReset());
await blob.FetchAttributesAsync();
Assert.AreEqual(md5, blob.Properties.ContentMD5);
using (MemoryOutputStream downloadedBlob = new MemoryOutputStream())
{
await blob.DownloadToStreamAsync(downloadedBlob);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob.UnderlyingStream);
}
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
async() => await blob.OpenWriteAsync(null, null, options, null),
"OpenWrite with StoreBlobContentMD5 on an existing page blob should fail");
using (IOutputStream writeStream = await blob.OpenWriteAsync(null))
{
Stream blobStream = writeStream.AsStreamForWrite();
blobStream.Seek(buffer.Length / 2, SeekOrigin.Begin);
wholeBlob.Seek(buffer.Length / 2, SeekOrigin.Begin);
for (int i = 0; i < 2; i++)
{
blobStream.Write(buffer, 0, buffer.Length);
wholeBlob.Write(buffer, 0, buffer.Length);
Assert.AreEqual(wholeBlob.Position, blobStream.Position);
}
await blobStream.FlushAsync();
}
await blob.FetchAttributesAsync();
Assert.AreEqual(md5, blob.Properties.ContentMD5);
using (MemoryOutputStream downloadedBlob = new MemoryOutputStream())
{
options.DisableContentMD5Validation = true;
await blob.DownloadToStreamAsync(downloadedBlob, null, options, null);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob.UnderlyingStream);
}
}
}
finally
{
container.DeleteAsync().AsTask().Wait();
}
}
public async Task DisableContentMD5ValidationTestAsync()
{
byte[] buffer = new byte[1024];
Random random = new Random();
random.NextBytes(buffer);
BlobRequestOptions optionsWithNoMD5 = new BlobRequestOptions()
{
DisableContentMD5Validation = true,
StoreBlobContentMD5 = true,
};
BlobRequestOptions optionsWithMD5 = new BlobRequestOptions()
{
DisableContentMD5Validation = false,
StoreBlobContentMD5 = true,
};
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudBlockBlob blockBlob = container.GetBlockBlobReference("blob1");
using (Stream stream = new NonSeekableMemoryStream(buffer))
{
await blockBlob.UploadFromStreamAsync(stream, null, optionsWithMD5, null);
}
using (Stream stream = new MemoryStream())
{
await blockBlob.DownloadToStreamAsync(stream, null, optionsWithMD5, null);
await blockBlob.DownloadToStreamAsync(stream, null, optionsWithNoMD5, null);
using (var blobStream = await blockBlob.OpenReadAsync(null, optionsWithMD5, null))
{
Stream blobStreamForRead = blobStream;
int read;
do
{
read = await blobStreamForRead.ReadAsync(buffer, 0, buffer.Length);
}while (read > 0);
}
using (var blobStream = await blockBlob.OpenReadAsync(null, optionsWithNoMD5, null))
{
Stream blobStreamForRead = blobStream;
int read;
do
{
read = await blobStreamForRead.ReadAsync(buffer, 0, buffer.Length);
}while (read > 0);
}
blockBlob.Properties.ContentMD5 = "MDAwMDAwMDA=";
await blockBlob.SetPropertiesAsync();
OperationContext opContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async() => await blockBlob.DownloadToStreamAsync(stream, null, optionsWithMD5, opContext),
opContext,
"Downloading a blob with invalid MD5 should fail",
HttpStatusCode.OK);
await blockBlob.DownloadToStreamAsync(stream, null, optionsWithNoMD5, null);
using (var blobStream = await blockBlob.OpenReadAsync(null, optionsWithMD5, null))
{
Stream blobStreamForRead = blobStream;
TestHelper.ExpectedException <IOException>(
() =>
{
int read;
do
{
read = blobStreamForRead.Read(buffer, 0, buffer.Length);
}while (read > 0);
},
"Downloading a blob with invalid MD5 should fail");
}
using (var blobStream = await blockBlob.OpenReadAsync(null, optionsWithNoMD5, null))
{
Stream blobStreamForRead = blobStream;
int read;
do
{
read = await blobStreamForRead.ReadAsync(buffer, 0, buffer.Length);
}while (read > 0);
}
}
CloudPageBlob pageBlob = container.GetPageBlobReference("blob2");
using (Stream stream = new MemoryStream(buffer))
{
await pageBlob.UploadFromStreamAsync(stream, null, optionsWithMD5, null);
}
using (Stream stream = new MemoryStream())
{
await pageBlob.DownloadToStreamAsync(stream, null, optionsWithMD5, null);
await pageBlob.DownloadToStreamAsync(stream, null, optionsWithNoMD5, null);
using (var blobStream = await pageBlob.OpenReadAsync(null, optionsWithMD5, null))
{
Stream blobStreamForRead = blobStream;
int read;
do
{
read = await blobStreamForRead.ReadAsync(buffer, 0, buffer.Length);
}while (read > 0);
}
using (var blobStream = await pageBlob.OpenReadAsync(null, optionsWithNoMD5, null))
{
Stream blobStreamForRead = blobStream;
int read;
do
{
read = await blobStreamForRead.ReadAsync(buffer, 0, buffer.Length);
}while (read > 0);
}
pageBlob.Properties.ContentMD5 = "MDAwMDAwMDA=";
await pageBlob.SetPropertiesAsync();
OperationContext opContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async() => await pageBlob.DownloadToStreamAsync(stream, null, optionsWithMD5, opContext),
opContext,
"Downloading a blob with invalid MD5 should fail",
HttpStatusCode.OK);
await pageBlob.DownloadToStreamAsync(stream, null, optionsWithNoMD5, null);
using (var blobStream = await pageBlob.OpenReadAsync(null, optionsWithMD5, null))
{
Stream blobStreamForRead = blobStream;
TestHelper.ExpectedException <IOException>(
() =>
{
int read;
do
{
read = blobStreamForRead.Read(buffer, 0, buffer.Length);
}while (read > 0);
},
"Downloading a blob with invalid MD5 should fail");
}
using (var blobStream = await pageBlob.OpenReadAsync(null, optionsWithNoMD5, null))
{
Stream blobStreamForRead = blobStream;
int read;
do
{
read = await blobStreamForRead.ReadAsync(buffer, 0, buffer.Length);
}while (read > 0);
}
}
}
finally
{
container.DeleteIfExistsAsync().Wait();
}
}
public async Task CloudPageBlobWritePagesAsync()
{
byte[] buffer = GetRandomBuffer(4 * 1024 * 1024);
CryptographicHash hasher = HashAlgorithmProvider.OpenAlgorithm("MD5").CreateHash();
hasher.Append(buffer.AsBuffer());
string contentMD5 = CryptographicBuffer.EncodeToBase64String(hasher.GetValueAndReset());
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
await blob.CreateAsync(4 * 1024 * 1024);
using (MemoryStream memoryStream = new MemoryStream())
{
await TestHelper.ExpectedExceptionAsync <ArgumentOutOfRangeException>(
async() => await blob.WritePagesAsync(memoryStream.AsInputStream(), 0, null),
"Zero-length WritePages should fail");
memoryStream.SetLength(4 * 1024 * 1024 + 1);
await TestHelper.ExpectedExceptionAsync <ArgumentOutOfRangeException>(
async() => await blob.WritePagesAsync(memoryStream.AsInputStream(), 0, null),
">4MB WritePages should fail");
}
using (MemoryStream resultingData = new MemoryStream())
{
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
OperationContext opContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async() => await blob.WritePagesAsync(memoryStream.AsInputStream(), 512, null, null, null, opContext),
opContext,
"Writing out-of-range pages should fail",
HttpStatusCode.RequestedRangeNotSatisfiable,
"InvalidPageRange");
memoryStream.Seek(0, SeekOrigin.Begin);
await blob.WritePagesAsync(memoryStream.AsInputStream(), 0, contentMD5);
resultingData.Write(buffer, 0, buffer.Length);
int offset = buffer.Length - 1024;
memoryStream.Seek(offset, SeekOrigin.Begin);
await TestHelper.ExpectedExceptionAsync(
async() => await blob.WritePagesAsync(memoryStream.AsInputStream(), 0, contentMD5, null, null, opContext),
opContext,
"Invalid MD5 should fail with mismatch",
HttpStatusCode.BadRequest,
"Md5Mismatch");
memoryStream.Seek(offset, SeekOrigin.Begin);
await blob.WritePagesAsync(memoryStream.AsInputStream(), 0, null);
resultingData.Seek(0, SeekOrigin.Begin);
resultingData.Write(buffer, offset, buffer.Length - offset);
offset = buffer.Length - 2048;
memoryStream.Seek(offset, SeekOrigin.Begin);
await blob.WritePagesAsync(memoryStream.AsInputStream(), 1024, null);
resultingData.Seek(1024, SeekOrigin.Begin);
resultingData.Write(buffer, offset, buffer.Length - offset);
}
using (MemoryStream blobData = new MemoryStream())
{
await blob.DownloadToStreamAsync(blobData.AsOutputStream());
Assert.AreEqual(resultingData.Length, blobData.Length);
Assert.IsTrue(blobData.ToArray().SequenceEqual(resultingData.ToArray()));
}
}
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
public async Task PageBlobWriteStreamBasicTestAsync()
{
byte[] buffer = GetRandomBuffer(6 * 512);
CloudBlobContainer container = GetRandomContainerReference();
container.ServiceClient.ParallelOperationThreadCount = 2;
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
blob.StreamWriteSizeInBytes = 8 * 512;
using (MemoryStream wholeBlob = new MemoryStream())
{
using (Stream writeStream = await blob.OpenWriteAsync(buffer.Length * 3))
{
Stream blobStream = writeStream;
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer, 0, buffer.Length);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(wholeBlob.Position, blobStream.Position);
}
await blobStream.FlushAsync();
}
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob);
}
using (Stream writeStream = await blob.OpenWriteAsync(null))
{
Stream blobStream = writeStream;
blobStream.Seek(buffer.Length / 2, SeekOrigin.Begin);
wholeBlob.Seek(buffer.Length / 2, SeekOrigin.Begin);
for (int i = 0; i < 2; i++)
{
blobStream.Write(buffer, 0, buffer.Length);
wholeBlob.Write(buffer, 0, buffer.Length);
Assert.AreEqual(wholeBlob.Position, blobStream.Position);
}
await blobStream.FlushAsync();
}
using (MemoryStream downloadedBlob = new MemoryStream())
{
await blob.DownloadToStreamAsync(downloadedBlob);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob);
}
}
}
finally
{
container.DeleteAsync().Wait();
}
}