public async Task ClearPageRangeScenarioTest(string containerName, string blobName, HttpStatusCode?expectedError)
{
// 1. Create Sparse Page Blob
int blobSize = 128 * 1024;
BlobProperties properties = new BlobProperties()
{
BlobType = BlobType.PageBlob
};
Uri uri = BlobTests.ConstructPutUri(BlobContext.Address, containerName, blobName);
OperationContext opContext = new OperationContext();
HttpRequestMessage webRequest = BlobHttpRequestMessageFactory.Put(uri, BlobContext.Timeout, properties, BlobType.PageBlob, blobSize, null, null, null, opContext, null, null);
using (HttpResponseMessage response = await BlobTestUtils.GetResponse(webRequest, BlobContext))
{
BlobTests.PutBlobResponse(response, BlobContext, expectedError);
}
// 2. Now upload some page ranges
for (int m = 0; m * 512 * 4 < blobSize; m++)
{
int startOffset = 512 * 4 * m;
int length = 512;
PageRange range = new PageRange(startOffset, startOffset + length - 1);
opContext = new OperationContext();
HttpRequestMessage pageRequest = BlobHttpRequestMessageFactory.PutPage(uri, BlobContext.Timeout, range, PageWrite.Update, null, null, opContext, null, null);
HttpRequestHandler.SetContentLength(pageRequest, 512);
byte[] content = new byte[length];
random.NextBytes(content);
pageRequest.Content = new ByteArrayContent(content);
using (HttpResponseMessage pageResponse = await BlobTestUtils.GetResponse(pageRequest, BlobContext))
{
}
}
// 3. Now do a Get Page Ranges
List <PageRange> pageRanges = new List <PageRange>();
opContext = new OperationContext();
HttpRequestMessage pageRangeRequest = BlobHttpRequestMessageFactory.GetPageRanges(uri, BlobContext.Timeout, null, null, null, null, null, opContext, null, null);
using (HttpResponseMessage pageRangeResponse = await BlobTestUtils.GetResponse(pageRangeRequest, BlobContext))
{
IEnumerable <PageRange> ranges = await GetPageRangesResponse.ParseAsync(HttpResponseParsers.GetResponseStream(pageRangeResponse), CancellationToken.None);
pageRanges.AddRange(ranges);
}
// 4. Now Clear some pages
bool skipFlag = false;
foreach (PageRange pRange in pageRanges)
{
skipFlag = !skipFlag;
if (skipFlag)
{
continue;
}
opContext = new OperationContext();
HttpRequestMessage clearPageRequest = BlobHttpRequestMessageFactory.PutPage(uri, BlobContext.Timeout, pRange, PageWrite.Clear, null, null, opContext, null, null);
HttpRequestHandler.SetContentLength(clearPageRequest, 0);
using (HttpResponseMessage clearResponse = await BlobTestUtils.GetResponse(clearPageRequest, BlobContext))
{
}
}
// 5. Get New Page ranges and verify
List <PageRange> newPageRanges = new List <PageRange>();
opContext = new OperationContext();
HttpRequestMessage newPageRangeRequest = BlobHttpRequestMessageFactory.GetPageRanges(uri, BlobContext.Timeout, null, null, null, null, null, opContext, null, null);
using (HttpResponseMessage newPageRangeResponse = await BlobTestUtils.GetResponse(newPageRangeRequest, BlobContext))
{
IEnumerable <PageRange> ranges = await GetPageRangesResponse.ParseAsync(HttpResponseParsers.GetResponseStream(newPageRangeResponse), CancellationToken.None);
newPageRanges.AddRange(ranges);
}
Assert.AreEqual(pageRanges.Count(), newPageRanges.Count() * 2);
for (int l = 0; l < newPageRanges.Count(); l++)
{
Assert.AreEqual(pageRanges[2 * l].StartOffset, newPageRanges[l].StartOffset);
Assert.AreEqual(pageRanges[2 * l].EndOffset, newPageRanges[l].EndOffset);
}
}