public void FileWriteStreamBasicTestAPM()
{
byte[] buffer = GetRandomBuffer(2 * 1024 * 1024);
MD5 hasher = MD5.Create();
CloudFileClient fileClient = GenerateCloudFileClient();
fileClient.DefaultRequestOptions.ParallelOperationThreadCount = 4;
string name = GetRandomShareName();
CloudFileShare share = fileClient.GetShareReference(name);
try
{
share.Create();
CloudFile file = share.GetRootDirectoryReference().GetFileReference("file1");
file.StreamWriteSizeInBytes = buffer.Length;
using (MemoryStream wholeFile = new MemoryStream())
{
FileRequestOptions options = new FileRequestOptions()
{
StoreFileContentMD5 = true,
};
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
IAsyncResult result = file.BeginOpenWrite(fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value * 2 * buffer.Length, null, options, null,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
using (CloudFileStream fileStream = file.EndOpenWrite(result))
{
IAsyncResult[] results = new IAsyncResult[fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value * 2];
for (int i = 0; i < results.Length; i++)
{
results[i] = fileStream.BeginWrite(buffer, 0, buffer.Length, null, null);
wholeFile.Write(buffer, 0, buffer.Length);
Assert.AreEqual(wholeFile.Position, fileStream.Position);
}
for (int i = 0; i < fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value; i++)
{
Assert.IsTrue(results[i].IsCompleted);
}
for (int i = fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value; i < results.Length; i++)
{
Assert.IsFalse(results[i].IsCompleted);
}
for (int i = 0; i < results.Length; i++)
{
fileStream.EndWrite(results[i]);
}
result = fileStream.BeginCommit(
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
fileStream.EndCommit(result);
}
}
wholeFile.Seek(0, SeekOrigin.Begin);
string md5 = Convert.ToBase64String(hasher.ComputeHash(wholeFile));
file.FetchAttributes();
Assert.AreEqual(md5, file.Properties.ContentMD5);
using (MemoryStream downloadedFile = new MemoryStream())
{
file.DownloadToStream(downloadedFile);
TestHelper.AssertStreamsAreEqual(wholeFile, downloadedFile);
}
fileClient.DefaultRequestOptions.ParallelOperationThreadCount = 2;
TestHelper.ExpectedException <ArgumentException>(
() => file.BeginOpenWrite(null, null, options, null, null, null),
"BeginOpenWrite with StoreFileContentMD5 on an existing file should fail");
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
IAsyncResult result = file.BeginOpenWrite(null,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
using (Stream fileStream = file.EndOpenWrite(result))
{
fileStream.Seek(buffer.Length / 2, SeekOrigin.Begin);
wholeFile.Seek(buffer.Length / 2, SeekOrigin.Begin);
IAsyncResult[] results = new IAsyncResult[fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value * 2];
for (int i = 0; i < results.Length; i++)
{
results[i] = fileStream.BeginWrite(buffer, 0, buffer.Length, null, null);
wholeFile.Write(buffer, 0, buffer.Length);
Assert.AreEqual(wholeFile.Position, fileStream.Position);
}
for (int i = 0; i < fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value; i++)
{
Assert.IsTrue(results[i].IsCompleted);
}
for (int i = fileClient.DefaultRequestOptions.ParallelOperationThreadCount.Value; i < results.Length; i++)
{
Assert.IsFalse(results[i].IsCompleted);
}
for (int i = 0; i < results.Length; i++)
{
fileStream.EndWrite(results[i]);
}
wholeFile.Seek(0, SeekOrigin.End);
}
file.FetchAttributes();
Assert.AreEqual(md5, file.Properties.ContentMD5);
using (MemoryStream downloadedFile = new MemoryStream())
{
options.DisableContentMD5Validation = true;
file.DownloadToStream(downloadedFile, null, options);
TestHelper.AssertStreamsAreEqual(wholeFile, downloadedFile);
}
}
}
}
finally
{
share.DeleteIfExists();
}
}