private async Task DoDownloadToByteArrayAsyncTest(CloudFile file, int fileSize, int bufferSize, int bufferOffset, bool isOverload)
{
int downloadLength;
byte[] buffer = GetRandomBuffer(fileSize);
byte[] resultBuffer = new byte[bufferSize];
byte[] resultBuffer2 = new byte[bufferSize];
using (MemoryStream originalFile = new MemoryStream(buffer))
{
if (!isOverload)
{
await file.UploadFromStreamAsync(originalFile);
downloadLength = await file.DownloadToByteArrayAsync(resultBuffer, bufferOffset);
}
else
{
await file.UploadFromStreamAsync(originalFile);
OperationContext context = new OperationContext();
downloadLength = await file.DownloadToByteArrayAsync(resultBuffer, bufferOffset, null, null, context);
}
int downloadSize = Math.Min(fileSize, bufferSize - bufferOffset);
Assert.AreEqual(downloadSize, downloadLength);
for (int i = 0; i < file.Properties.Length; i++)
{
Assert.AreEqual(buffer[i], resultBuffer[bufferOffset + i]);
}
for (int j = 0; j < bufferOffset; j++)
{
Assert.AreEqual(0, resultBuffer2[j]);
}
if (bufferOffset + fileSize < bufferSize)
{
for (int k = bufferOffset + fileSize; k < bufferSize; k++)
{
Assert.AreEqual(0, resultBuffer2[k]);
}
}
}
}
private async Task DoUploadFromByteArrayTestAsync(CloudFile file, int bufferSize, int bufferOffset, int count)
{
byte[] buffer = GetRandomBuffer(bufferSize);
byte[] downloadedBuffer = new byte[bufferSize];
int downloadLength;
await file.UploadFromByteArrayAsync(buffer, bufferOffset, count);
downloadLength = await file.DownloadToByteArrayAsync(downloadedBuffer, 0);
Assert.AreEqual(count, downloadLength);
for (int i = 0; i < count; i++)
{
Assert.AreEqual(buffer[i + bufferOffset], downloadedBuffer[i]);
}
}
private async Task DoDownloadRangeToByteArrayNegativeTestsAsync(CloudFile file)
{
int fileLength = 1024;
int resultBufSize = 1024;
byte[] buffer = GetRandomBuffer(fileLength);
byte[] resultBuffer = new byte[resultBufSize];
using (MemoryStream stream = new MemoryStream(buffer))
{
await file.UploadFromStreamAsync(stream);
OperationContext context = new OperationContext();
await TestHelper.ExpectedExceptionAsync(async() => await file.DownloadRangeToByteArrayAsync(resultBuffer, 0, 1024, 1, null, null, context), context, "Try invalid length", HttpStatusCode.RequestedRangeNotSatisfiable);
StorageException ex = await TestHelper.ExpectedExceptionAsync <StorageException>(async() => await file.DownloadToByteArrayAsync(resultBuffer, 1024), "Provide invalid offset");
Assert.IsInstanceOfType(ex.InnerException, typeof(NotSupportedException));
ex = await TestHelper.ExpectedExceptionAsync <StorageException>(async() => await file.DownloadRangeToByteArrayAsync(resultBuffer, 1023, 0, 2), "Should fail when offset + length required is greater than size of the buffer");
Assert.IsInstanceOfType(ex.InnerException, typeof(NotSupportedException));
ex = await TestHelper.ExpectedExceptionAsync <StorageException>(async() => await file.DownloadRangeToByteArrayAsync(resultBuffer, 0, 0, -10), "Fail when a negative length is specified");
Assert.IsInstanceOfType(ex.InnerException, typeof(ArgumentOutOfRangeException));
await TestHelper.ExpectedExceptionAsync <ArgumentOutOfRangeException>(async() => await file.DownloadRangeToByteArrayAsync(resultBuffer, -10, 0, 20), "Fail if a negative offset is provided");
ex = await TestHelper.ExpectedExceptionAsync <StorageException>(async() => await file.DownloadRangeToByteArrayAsync(resultBuffer, 0, -10, 20), "Fail if a negative file offset is provided");
Assert.IsInstanceOfType(ex.InnerException, typeof(ArgumentOutOfRangeException));
}
}