private async Task IncrementalCopyAsyncImpl(int overload)
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob source = container.GetPageBlobReference("source");
await source.CreateAsync(1024);
string data = new string('a', 512);
await UploadTextAsync(source, data, Encoding.UTF8);
CloudPageBlob sourceSnapshot = await source.CreateSnapshotAsync(null, null, null, null);
SharedAccessBlobPolicy policy = new SharedAccessBlobPolicy()
{
SharedAccessStartTime = DateTimeOffset.UtcNow.AddMinutes(-5),
SharedAccessExpiryTime = DateTimeOffset.UtcNow.AddMinutes(30),
Permissions = SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Write,
};
string sasToken = sourceSnapshot.GetSharedAccessSignature(policy);
StorageCredentials blobSAS = new StorageCredentials(sasToken);
Uri sourceSnapshotUri = blobSAS.TransformUri(TestHelper.Defiddler(sourceSnapshot).SnapshotQualifiedUri);
StorageCredentials accountSAS = new StorageCredentials(sasToken);
CloudStorageAccount accountWithSAS = new CloudStorageAccount(accountSAS, source.ServiceClient.StorageUri, null, null, null);
CloudPageBlob snapshotWithSas = await accountWithSAS.CreateCloudBlobClient().GetBlobReferenceFromServerAsync(sourceSnapshot.SnapshotQualifiedUri) as CloudPageBlob;
CloudPageBlob copy = container.GetPageBlobReference("copy");
string copyId = null;
if (overload == 0)
{
#if !FACADE_NETCORE
copyId = await copy.StartIncrementalCopyAsync(accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri));
#else
Uri snapShotQualifiedUri = accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri);
copyId = await copy.StartIncrementalCopyAsync(new CloudPageBlob(new StorageUri(snapShotQualifiedUri), null, null));
#endif
}
else if (overload == 1)
{
#if !FACADE_NETCORE
CloudPageBlob blob = new CloudPageBlob(accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri));
#else
Uri snapShotQualifiedUri = accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri);
CloudPageBlob blob = new CloudPageBlob(new StorageUri(snapShotQualifiedUri), null, null);
#endif
copyId = await copy.StartIncrementalCopyAsync(blob);
}
else if (overload == 2)
{
#if !FACADE_NETCORE
CloudPageBlob blob = new CloudPageBlob(accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri));
#else
Uri snapShotQualifiedUri = accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri);
CloudPageBlob blob = new CloudPageBlob(new StorageUri(snapShotQualifiedUri), null, null);
#endif
copyId = await copy.StartIncrementalCopyAsync(blob, null, null, null, CancellationToken.None);
}
else
{
#if !FACADE_NETCORE
copyId = await copy.StartIncrementalCopyAsync(accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri), null, null, null, CancellationToken.None);
#else
Uri snapShotQualifiedUri = accountSAS.TransformUri(TestHelper.Defiddler(snapshotWithSas).SnapshotQualifiedUri);
CloudPageBlob blob = new CloudPageBlob(new StorageUri(snapShotQualifiedUri), null, null);
copyId = await copy.StartIncrementalCopyAsync(blob, null, null, null, CancellationToken.None);
#endif
}
await WaitForCopyAsync(copy);
Assert.AreEqual(BlobType.PageBlob, copy.BlobType);
Assert.AreEqual(CopyStatus.Success, copy.CopyState.Status);
Assert.AreEqual(source.Uri.AbsolutePath, copy.CopyState.Source.AbsolutePath);
Assert.AreEqual(data.Length, copy.CopyState.TotalBytes);
Assert.AreEqual(data.Length, copy.CopyState.BytesCopied);
Assert.AreEqual(copyId, copy.CopyState.CopyId);
Assert.IsTrue(copy.Properties.IsIncrementalCopy);
Assert.IsTrue(copy.CopyState.DestinationSnapshotTime.HasValue);
Assert.IsTrue(copy.CopyState.CompletionTime > DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(1)));
}
finally
{
await container.DeleteAsync();
}
}
public async Task CloudPageBlobCopyFromSnapshotTestAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
CloudPageBlob source = container.GetPageBlobReference("source");
string data = new string('a', 512);
await UploadTextAsync(source, data, Encoding.UTF8);
source.Metadata["Test"] = "value";
await source.SetMetadataAsync();
CloudPageBlob snapshot = await source.CreateSnapshotAsync();
//Modify source
string newData = new string('b', 512);
source.Metadata["Test"] = "newvalue";
await source.SetMetadataAsync();
source.Properties.ContentMD5 = null;
await UploadTextAsync(source, newData, Encoding.UTF8);
Assert.AreEqual(newData, await DownloadTextAsync(source, Encoding.UTF8), "Source is modified correctly");
Assert.AreEqual(data, await DownloadTextAsync(snapshot, Encoding.UTF8), "Modifying source blob should not modify snapshot");
await source.FetchAttributesAsync();
await snapshot.FetchAttributesAsync();
Assert.AreNotEqual(source.Metadata["Test"], snapshot.Metadata["Test"], "Source and snapshot metadata should be independent");
CloudPageBlob copy = container.GetPageBlobReference("copy");
await copy.StartCopyAsync(TestHelper.Defiddler(snapshot));
await WaitForCopyAsync(copy);
Assert.AreEqual(CopyStatus.Success, copy.CopyState.Status);
Assert.AreEqual(data, await DownloadTextAsync(copy, Encoding.UTF8), "Data inside copy of blob not similar");
await copy.FetchAttributesAsync();
BlobProperties prop1 = copy.Properties;
BlobProperties prop2 = snapshot.Properties;
Assert.AreEqual(prop1.CacheControl, prop2.CacheControl);
Assert.AreEqual(prop1.ContentDisposition, prop2.ContentDisposition);
Assert.AreEqual(prop1.ContentEncoding, prop2.ContentEncoding);
Assert.AreEqual(prop1.ContentLanguage, prop2.ContentLanguage);
Assert.AreEqual(prop1.ContentMD5, prop2.ContentMD5);
Assert.AreEqual(prop1.ContentType, prop2.ContentType);
Assert.AreEqual("value", copy.Metadata["Test"], false, "Copied metadata not same");
await copy.DeleteAsync();
}
finally
{
await container.DeleteAsync();
}
}
