本文整理汇总了C#中ICloudBlob.DownloadRangeToByteArrayAsync方法的典型用法代码示例。如果您正苦于以下问题：C# ICloudBlob.DownloadRangeToByteArrayAsync方法的具体用法？C# ICloudBlob.DownloadRangeToByteArrayAsync怎么用？C# ICloudBlob.DownloadRangeToByteArrayAsync使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ICloudBlob的用法示例。
在下文中一共展示了ICloudBlob.DownloadRangeToByteArrayAsync方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DoDownloadRangeToByteArrayNegativeTestsAsync
private async Task DoDownloadRangeToByteArrayNegativeTestsAsync(ICloudBlob blob)
{
int blobLength = 1024;
int resultBufSize = 1024;
byte[] buffer = GetRandomBuffer(blobLength);
byte[] resultBuffer = new byte[resultBufSize];
using (MemoryStream stream = new MemoryStream(buffer))
{
await blob.UploadFromStreamAsync(stream);
OperationContext context = new OperationContext();
await TestHelper.ExpectedExceptionAsync(async () => await blob.DownloadRangeToByteArrayAsync(resultBuffer, 0, 1024, 1, null, null, context), context, "Try invalid length", HttpStatusCode.RequestedRangeNotSatisfiable);
StorageException ex = await TestHelper.ExpectedExceptionAsync<StorageException>(async () => await blob.DownloadToByteArrayAsync(resultBuffer, 1024), "Provide invalid offset");
Assert.IsInstanceOfType(ex.InnerException, typeof(NotSupportedException));
ex = await TestHelper.ExpectedExceptionAsync<StorageException>(async () => await blob.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 blob.DownloadRangeToByteArrayAsync(resultBuffer, 0, 0, -10), "Fail when a negative length is specified");
Assert.IsInstanceOfType(ex.InnerException, typeof(ArgumentOutOfRangeException));
await TestHelper.ExpectedExceptionAsync<ArgumentOutOfRangeException>(async () => await blob.DownloadRangeToByteArrayAsync(resultBuffer, -10, 0, 20), "Fail if a negative offset is provided");
ex = await TestHelper.ExpectedExceptionAsync<StorageException>(async () => await blob.DownloadRangeToByteArrayAsync(resultBuffer, 0, -10, 20), "Fail if a negative blob offset is provided");
Assert.IsInstanceOfType(ex.InnerException, typeof(ArgumentOutOfRangeException));
}
}示例2: DoDownloadRangeToByteArrayAsyncTest
/// <summary>
/// Single put blob and get blob.
/// </summary>
/// <param name="blobSize">The blob size.</param>
/// <param name="bufferSize">The output buffer size.</param>
/// <param name="bufferOffset">The output buffer offset.</param>
/// <param name="blobOffset">The blob offset.</param>
/// <param name="length">Length of the data range to download.</param>
/// <param name="isOverload">True when the overloaded method for DownloadRangeToByteArrayAsync is called. False when the basic method is called.</param>
private async Task DoDownloadRangeToByteArrayAsyncTest(ICloudBlob blob, int blobSize, int bufferSize, int bufferOffset, long? blobOffset, long? length, bool isOverload)
{
int downloadLength;
byte[] buffer = GetRandomBuffer(blobSize);
byte[] resultBuffer = new byte[bufferSize];
byte[] resultBuffer2 = new byte[bufferSize];
using (MemoryStream originalBlob = new MemoryStream(buffer))
{
if (!isOverload)
{
await blob.UploadFromStreamAsync(originalBlob);
downloadLength = await blob.DownloadRangeToByteArrayAsync(resultBuffer, bufferOffset, blobOffset, length);
}
else
{
await blob.UploadFromStreamAsync(originalBlob);
OperationContext context = new OperationContext();
downloadLength = await blob.DownloadRangeToByteArrayAsync(resultBuffer, bufferOffset, blobOffset, length, null, null, context);
}
int downloadSize = Math.Min(blobSize - (int)(blobOffset.HasValue ? blobOffset.Value : 0), bufferSize - bufferOffset);
if (length.HasValue && (length.Value < downloadSize))
{
downloadSize = (int)length.Value;
}
Assert.AreEqual(downloadSize, downloadLength);
for (int i = 0; i < bufferOffset; i++)
{
Assert.AreEqual(0, resultBuffer[i]);
}
for (int j = 0; j < downloadLength; j++)
{
Assert.AreEqual(buffer[(blobOffset.HasValue ? blobOffset.Value : 0) + j], resultBuffer[bufferOffset + j]);
}
for (int k = bufferOffset + downloadLength; k < bufferSize; k++)
{
Assert.AreEqual(0, resultBuffer[k]);
}
}
}