public async Task CloudPageBlobMethodsOnBlockBlobAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
List <string> blobs = await CreateBlobsAsync(container, 1, BlobType.BlockBlob);
CloudPageBlob blob = container.GetPageBlobReference(blobs.First());
OperationContext operationContext = new OperationContext();
using (MemoryStream stream = new MemoryStream())
{
stream.SetLength(512);
await TestHelper.ExpectedExceptionAsync(
async() => await blob.WritePagesAsync(stream.AsInputStream(), 0, null, null, null, operationContext),
operationContext,
"Page operations should fail on block blobs",
HttpStatusCode.Conflict,
"InvalidBlobType");
}
await TestHelper.ExpectedExceptionAsync(
async() => await blob.ClearPagesAsync(0, 512, null, null, operationContext),
operationContext,
"Page operations should fail on block blobs",
HttpStatusCode.Conflict,
"InvalidBlobType");
await TestHelper.ExpectedExceptionAsync(
async() => await blob.GetPageRangesAsync(null /* offset */, null /* length */, null, null, operationContext),
operationContext,
"Page operations should fail on block blobs",
HttpStatusCode.Conflict,
"InvalidBlobType");
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}
/// <summary>
/// Test page blob reads, expecting success.
/// </summary>
/// <param name="testBlob">The page blob.</param>
/// <param name="testAccessCondition">The access condition to use.</param>
private async Task PageBlobReadExpectSuccessAsync(CloudPageBlob testBlob, AccessCondition testAccessCondition)
{
await testBlob.GetPageRangesAsync(null /* offset */, null /* length */, testAccessCondition, null /* options */, null);
}
/// <summary>
/// Test page blob reads, expecting lease failure.
/// </summary>
/// <param name="testBlob">The page blob.</param>
/// <param name="testAccessCondition">The failing access condition to use.</param>
/// <param name="expectedErrorCode">The expected error code.</param>
/// <param name="description">The reason why these calls should fail.</param>
private async Task PageBlobReadExpectLeaseFailureAsync(CloudPageBlob testBlob, AccessCondition testAccessCondition, HttpStatusCode expectedStatusCode, string expectedErrorCode, string description)
{
OperationContext operationContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async () => await testBlob.GetPageRangesAsync(null /* offset */, null /* length */, testAccessCondition, null /* options */, operationContext),
operationContext,
description + "(Get Page Ranges)",
expectedStatusCode,
expectedErrorCode);
}
public async Task CloudPageBlobGetPageRangesAsync()
{
byte[] buffer = GetRandomBuffer(1024);
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob blob = container.GetPageBlobReference("blob1");
await blob.CreateAsync(4 * 1024);
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
await blob.WritePagesAsync(memoryStream.AsInputStream(), 512, null);
}
using (MemoryStream memoryStream = new MemoryStream(buffer))
{
await blob.WritePagesAsync(memoryStream.AsInputStream(), 3 * 1024, null);
}
await blob.ClearPagesAsync(1024, 1024);
await blob.ClearPagesAsync(0, 512);
IEnumerable <PageRange> pageRanges = await blob.GetPageRangesAsync();
List <string> expectedPageRanges = new List <string>()
{
new PageRange(512, 1023).ToString(),
new PageRange(3 * 1024, 4 * 1024 - 1).ToString(),
};
foreach (PageRange pageRange in pageRanges)
{
Assert.IsTrue(expectedPageRanges.Remove(pageRange.ToString()));
}
Assert.AreEqual(0, expectedPageRanges.Count);
pageRanges = await blob.GetPageRangesAsync(1024, 1024, null, null, null);
Assert.AreEqual(0, pageRanges.Count());
pageRanges = await blob.GetPageRangesAsync(512, 3 * 1024, null, null, null);
expectedPageRanges = new List <string>()
{
new PageRange(512, 1023).ToString(),
new PageRange(3 * 1024, 7 * 512 - 1).ToString(),
};
foreach (PageRange pageRange in pageRanges)
{
Assert.IsTrue(expectedPageRanges.Remove(pageRange.ToString()));
}
Assert.AreEqual(0, expectedPageRanges.Count);
OperationContext opContext = new OperationContext();
await TestHelper.ExpectedExceptionAsync(
async() => await blob.GetPageRangesAsync(1024, null, null, null, opContext),
opContext,
"Get Page Ranges with an offset but no count should fail",
HttpStatusCode.Unused);
Assert.IsInstanceOfType(opContext.LastResult.Exception.InnerException, typeof(ArgumentNullException));
}
finally
{
container.DeleteIfExistsAsync().AsTask().Wait();
}
}