public async Task ChangeFeedIteratorCore_UpdatesContinuation_On304()
{
IDocumentContainer documentContainer = await CreateDocumentContainerAsync(numItems : 0);
ChangeFeedIteratorCore changeFeedIteratorCore = new ChangeFeedIteratorCore(
documentContainer,
ChangeFeedMode.Incremental,
new ChangeFeedRequestOptions(),
ChangeFeedStartFrom.Beginning());
ResponseMessage responseMessage = await changeFeedIteratorCore.ReadNextAsync();
Assert.AreEqual(HttpStatusCode.NotModified, responseMessage.StatusCode);
string continuationToken = responseMessage.Headers.ContinuationToken;
ResponseMessage responseMessage2 = await changeFeedIteratorCore.ReadNextAsync();
Assert.AreEqual(HttpStatusCode.NotModified, responseMessage.StatusCode);
string continuationToken2 = responseMessage2.Headers.ContinuationToken;
Assert.AreNotEqual(continuationToken, continuationToken2);
}
public async Task ChangeFeedIteratorCore_PartitionKey_ReadAll()
{
int totalCount = 0;
int firstRunTotal = 25;
int batchSize = 25;
string pkToRead = "pkToRead";
string otherPK = "otherPK";
ContainerInternal itemsCore = await this.InitializeContainerAsync();
for (int i = 0; i < batchSize; i++)
{
await itemsCore.CreateItemAsync(ToDoActivity.CreateRandomToDoActivity(pk: pkToRead));
}
for (int i = 0; i < batchSize; i++)
{
await itemsCore.CreateItemAsync(ToDoActivity.CreateRandomToDoActivity(pk: otherPK));
}
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(
ChangeFeedStartFrom.Beginning(
FeedRange.FromPartitionKey(
new PartitionKey(pkToRead))),
ChangeFeedMode.Incremental,
new ChangeFeedRequestOptions()
{
PageSizeHint = 1,
}) as ChangeFeedIteratorCore;
string continuation = null;
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (!responseMessage.IsSuccessStatusCode)
{
continuation = responseMessage.ContinuationToken;
break;
}
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
foreach (ToDoActivity toDoActivity in response)
{
Assert.AreEqual(pkToRead, toDoActivity.pk);
}
}
}
Assert.AreEqual(firstRunTotal, totalCount);
int expectedFinalCount = 50;
// Insert another batch of 25 and use the last FeedToken from the first cycle
for (int i = 0; i < batchSize; i++)
{
await itemsCore.CreateItemAsync(ToDoActivity.CreateRandomToDoActivity(pk: pkToRead));
}
ChangeFeedIteratorCore setIteratorNew = itemsCore.GetChangeFeedStreamIterator(
ChangeFeedStartFrom.ContinuationToken(continuation),
ChangeFeedMode.Incremental) as ChangeFeedIteratorCore;
while (setIteratorNew.HasMoreResults)
{
using (ResponseMessage responseMessage =
await setIteratorNew.ReadNextAsync(this.cancellationToken))
{
if (!responseMessage.IsSuccessStatusCode)
{
break;
}
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
foreach (ToDoActivity toDoActivity in response)
{
Assert.AreEqual(pkToRead, toDoActivity.pk);
}
}
}
Assert.AreEqual(expectedFinalCount, totalCount);
}
public async Task ChangeFeed_FeedRange_FromV2SDK()
{
ContainerResponse largerContainer = await this.database.CreateContainerAsync(
new ContainerProperties(id : Guid.NewGuid().ToString(), partitionKeyPath : "/status"),
throughput : 20000,
cancellationToken : this.cancellationToken);
ContainerCore container = (ContainerInlineCore)largerContainer;
int expected = 100;
int count = 0;
await this.CreateRandomItems(container, expected, randomPartitionKey : true);
IReadOnlyList <FeedRange> feedRanges = await container.GetFeedRangesAsync();
List <string> continuations = new List <string>();
// First do one request to construct the old model information based on Etag
foreach (FeedRange feedRange in feedRanges)
{
IEnumerable <string> pkRangeIds = await container.GetPartitionKeyRangesAsync(feedRange);
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime(), MaxItemCount = 1
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(feedRange: feedRange, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
// Construct the continuation's range, using PKRangeId + ETag
List <dynamic> ct = new List <dynamic>()
{
new { min = string.Empty, max = string.Empty, token = firstResponse.Headers.ETag }
};
// Extract Etag and manually construct the continuation
dynamic oldContinuation = new { V = 0, PKRangeId = pkRangeIds.First(), Continuation = ct };
continuations.Add(JsonConvert.SerializeObject(oldContinuation));
}
// Now start the new iterators with the constructed continuations from migration
foreach (string continuation in continuations)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
MaxItemCount = 100
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(continuationToken: continuation, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
}
Assert.AreEqual(expected, count);
}
public void ChangeFeedIteratorCore_HasMoreResultsDefault()
{
ChangeFeedIteratorCore changeFeedIteratorCore = new ChangeFeedIteratorCore(Mock.Of <ContainerCore>(), null);
Assert.IsTrue(changeFeedIteratorCore.HasMoreResults);
}
public async Task ChangeFeedIteratorCore_Retries()
{
string continuation = "TBD";
ResponseMessage responseMessage = new ResponseMessage(HttpStatusCode.OK);
responseMessage.Headers.ETag = continuation;
responseMessage.Headers[Documents.HttpConstants.HttpHeaders.ItemCount] = "1";
Mock <CosmosClientContext> cosmosClientContext = new Mock <CosmosClientContext>();
cosmosClientContext.Setup(c => c.ClientOptions).Returns(new CosmosClientOptions());
cosmosClientContext
.Setup(c => c.ProcessResourceOperationStreamAsync(
It.IsAny <Uri>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerCore>(),
It.IsAny <PartitionKey?>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(responseMessage));
ContainerCore containerCore = Mock.Of <ContainerCore>();
Mock.Get(containerCore)
.Setup(c => c.ClientContext)
.Returns(cosmosClientContext.Object);
FeedTokenInternal feedToken = Mock.Of <FeedTokenInternal>();
Mock.Get(feedToken)
.Setup(f => f.EnrichRequest(It.IsAny <RequestMessage>()));
Mock.Get(feedToken)
.SetupSequence(f => f.ShouldRetryAsync(It.Is <ContainerCore>(c => c == containerCore), It.IsAny <ResponseMessage>(), It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(true))
.Returns(Task.FromResult(false));
ChangeFeedIteratorCore changeFeedIteratorCore = new ChangeFeedIteratorCore(containerCore, feedToken, null);
ResponseMessage response = await changeFeedIteratorCore.ReadNextAsync();
Mock.Get(feedToken)
.Verify(f => f.UpdateContinuation(It.IsAny <string>()), Times.Exactly(2));
Mock.Get(feedToken)
.Verify(f => f.ShouldRetryAsync(It.Is <ContainerCore>(c => c == containerCore), It.IsAny <ResponseMessage>(), It.IsAny <CancellationToken>()), Times.Exactly(2));
Mock.Get(cosmosClientContext.Object)
.Verify(c => c.ProcessResourceOperationStreamAsync(
It.IsAny <Uri>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerCore>(),
It.IsAny <PartitionKey?>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()), Times.Exactly(2));
}
public async Task ChangeFeedIteratorCore_FromV2SDK()
{
int expected = 100;
int count = 0;
await this.CreateRandomItems(this.LargerContainer, expected, randomPartitionKey : true);
IReadOnlyList <FeedRange> feedRanges = await this.LargerContainer.GetFeedRangesAsync();
List <string> continuations = new List <string>();
// First do one request to construct the old model information based on Etag
foreach (FeedRange feedRange in feedRanges)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime(), MaxItemCount = 1
};
ChangeFeedIteratorCore feedIterator = this.LargerContainer.GetChangeFeedStreamIterator(feedRange: feedRange, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
// Construct the continuation's range, FeedRange.ToString() = [min,max)
string range = feedRange.ToString();
int separator = range.IndexOf(',');
string min = range.Substring(1, separator - 1);
string max = range.Substring(separator + 1, range.IndexOf(')') - separator - 1);
dynamic ctRange = new { min = min, max = max };
List <dynamic> ct = new List <dynamic>()
{
new { min = min, max = max, token = firstResponse.Headers.ETag, range = ctRange }
};
// Extract Etag and manually construct the continuation
dynamic oldContinuation = new { V = 0, Range = ctRange, Continuation = ct };
continuations.Add(JsonConvert.SerializeObject(oldContinuation));
}
// Now start the new iterators with the constructed continuations from migration
foreach (string continuation in continuations)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
MaxItemCount = 100
};
ChangeFeedIteratorCore feedIterator = this.LargerContainer.GetChangeFeedStreamIterator(continuationToken: continuation, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
}
Assert.AreEqual(expected, count);
}
public async Task ChangeFeedIteratorCore_PartitionKey_ReadAll()
{
int totalCount = 0;
int firstRunTotal = 25;
int batchSize = 25;
string pkToRead = "pkToRead";
string otherPK = "otherPK";
for (int i = 0; i < batchSize; i++)
{
await this.Container.CreateItemAsync(this.CreateRandomToDoActivity(pkToRead));
}
for (int i = 0; i < batchSize; i++)
{
await this.Container.CreateItemAsync(this.CreateRandomToDoActivity(otherPK));
}
ContainerCore itemsCore = this.Container;
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(new PartitionKey(pkToRead), changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
string continuation = null;
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
foreach (ToDoActivity toDoActivity in response)
{
Assert.AreEqual(pkToRead, toDoActivity.status);
}
}
continuation = responseMessage.ContinuationToken;
}
}
Assert.AreEqual(firstRunTotal, totalCount);
int expectedFinalCount = 50;
// Insert another batch of 25 and use the last FeedToken from the first cycle
for (int i = 0; i < batchSize; i++)
{
await this.Container.CreateItemAsync(this.CreateRandomToDoActivity(pkToRead));
}
ChangeFeedIteratorCore setIteratorNew = itemsCore.GetChangeFeedStreamIterator(continuationToken: continuation, changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
while (setIteratorNew.HasMoreResults)
{
using (ResponseMessage responseMessage =
await setIteratorNew.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
foreach (ToDoActivity toDoActivity in response)
{
Assert.AreEqual(pkToRead, toDoActivity.status);
}
}
}
}
Assert.AreEqual(expectedFinalCount, totalCount);
}
public async Task ChangeFeed_FeedRange_FromV0Token()
{
ContainerResponse largerContainer = await this.database.CreateContainerAsync(
new ContainerProperties(id : Guid.NewGuid().ToString(), partitionKeyPath : "/pk"),
throughput : 20000,
cancellationToken : this.cancellationToken);
ContainerInternal container = (ContainerInlineCore)largerContainer;
int expected = 100;
int count = 0;
await this.CreateRandomItems((ContainerCore)container, expected, randomPartitionKey : true);
IReadOnlyList <FeedRange> feedRanges = await container.GetFeedRangesAsync();
List <string> continuations = new List <string>();
// First do one request to construct the old model information based on Etag
foreach (FeedRange feedRange in feedRanges)
{
IEnumerable <string> pkRangeIds = await container.GetPartitionKeyRangesAsync(feedRange);
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
PageSizeHint = 1
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(
changeFeedStartFrom: ChangeFeedStartFrom.Beginning(feedRange),
changeFeedMode: ChangeFeedMode.Incremental,
changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
// Construct the continuation's range, using PKRangeId + ETag
List <dynamic> ct = new List <dynamic>()
{
new
{
FeedRange = new
{
type = "Physical Partition Key Range Id",
value = pkRangeIds.First()
},
State = new
{
type = "continuation",
value = JObject.Parse(firstResponse.ContinuationToken)["Continuation"][0]["State"]["value"].ToString()
}
}
};
if (firstResponse.Content != null)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
// Extract Etag and manually construct the continuation
dynamic oldContinuation = new
{
V = 2,
Rid = await container.GetCachedRIDAsync(cancellationToken : this.cancellationToken),
Continuation = ct
};
continuations.Add(JsonConvert.SerializeObject(oldContinuation));
}
// Now start the new iterators with the constructed continuations from migration
foreach (string continuation in continuations)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
PageSizeHint = 100,
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(
changeFeedStartFrom: ChangeFeedStartFrom.ContinuationToken(continuation),
changeFeedMode: ChangeFeedMode.Incremental,
changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
string migratedContinuation = firstResponse.ContinuationToken;
TryCatch <CosmosElement> monadicParsedToken = CosmosElement.Monadic.Parse(migratedContinuation);
Assert.IsFalse(monadicParsedToken.Failed);
TryCatch <VersionedAndRidCheckedCompositeToken> monadicVersionedToken = VersionedAndRidCheckedCompositeToken
.MonadicCreateFromCosmosElement(monadicParsedToken.Result);
Assert.IsFalse(monadicVersionedToken.Failed);
VersionedAndRidCheckedCompositeToken versionedAndRidCheckedCompositeToken = monadicVersionedToken.Result;
Assert.AreEqual(VersionedAndRidCheckedCompositeToken.Version.V2, versionedAndRidCheckedCompositeToken.VersionNumber);
}
}
Assert.AreEqual(expected, count);
}
public async Task ChangeFeedIteratorCore_Retries()
{
string continuation = "TBD";
ResponseMessage responseMessage = new ResponseMessage(HttpStatusCode.OK);
responseMessage.Headers.ETag = continuation;
responseMessage.Headers[Documents.HttpConstants.HttpHeaders.ItemCount] = "1";
Mock <CosmosClientContext> cosmosClientContext = new Mock <CosmosClientContext>();
cosmosClientContext.Setup(c => c.ClientOptions).Returns(new CosmosClientOptions());
cosmosClientContext
.Setup(c => c.ProcessResourceOperationStreamAsync(
It.IsAny <string>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerInternal>(),
It.IsAny <PartitionKey?>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(responseMessage));
ContainerInternal containerCore = Mock.Of <ContainerInternal>();
Mock.Get(containerCore)
.Setup(c => c.ClientContext)
.Returns(cosmosClientContext.Object);
FeedRangeInternal range = Mock.Of <FeedRangeInternal>();
Mock.Get(range)
.Setup(f => f.Accept(It.IsAny <FeedRangeRequestMessagePopulatorVisitor>()));
FeedRangeContinuation feedToken = Mock.Of <FeedRangeContinuation>();
Mock.Get(feedToken)
.Setup(f => f.FeedRange)
.Returns(range);
Mock.Get(feedToken)
.SetupSequence(f => f.HandleSplitAsync(It.Is <ContainerInternal>(c => c == containerCore), It.IsAny <ResponseMessage>(), It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(Documents.ShouldRetryResult.RetryAfter(TimeSpan.Zero)))
.Returns(Task.FromResult(Documents.ShouldRetryResult.NoRetry()));
Mock.Get(feedToken)
.SetupSequence(f => f.HandleChangeFeedNotModified(It.IsAny <ResponseMessage>()))
.Returns(Documents.ShouldRetryResult.RetryAfter(TimeSpan.Zero))
.Returns(Documents.ShouldRetryResult.NoRetry())
.Returns(Documents.ShouldRetryResult.NoRetry());
ChangeFeedIteratorCore changeFeedIteratorCore = CreateWithCustomFeedToken(containerCore, feedToken);
ResponseMessage response = await changeFeedIteratorCore.ReadNextAsync();
Mock.Get(feedToken)
.Verify(f => f.ReplaceContinuation(It.IsAny <string>()), Times.Once);
Mock.Get(feedToken)
.Verify(f => f.HandleSplitAsync(It.Is <ContainerInternal>(c => c == containerCore), It.IsAny <ResponseMessage>(), It.IsAny <CancellationToken>()), Times.Exactly(2));
Mock.Get(feedToken)
.Verify(f => f.HandleChangeFeedNotModified(It.IsAny <ResponseMessage>()), Times.Exactly(3));
Mock.Get(cosmosClientContext.Object)
.Verify(c => c.ProcessResourceOperationStreamAsync(
It.IsAny <string>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerInternal>(),
It.IsAny <PartitionKey?>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()), Times.Exactly(3));
}
public async Task ChangeFeedIteratorCore_OfT_ReadNextAsync()
{
string continuation = "TBD";
ResponseMessage responseMessage = new ResponseMessage(HttpStatusCode.OK);
responseMessage.Headers.ETag = continuation;
responseMessage.Headers[Documents.HttpConstants.HttpHeaders.ItemCount] = "1";
Mock <CosmosClientContext> cosmosClientContext = new Mock <CosmosClientContext>();
cosmosClientContext.Setup(c => c.ClientOptions).Returns(new CosmosClientOptions());
cosmosClientContext
.Setup(c => c.ProcessResourceOperationStreamAsync(
It.IsAny <string>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerInternal>(),
It.IsAny <PartitionKey?>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(responseMessage));
ContainerInternal containerCore = Mock.Of <ContainerInternal>();
Mock.Get(containerCore)
.Setup(c => c.ClientContext)
.Returns(cosmosClientContext.Object);
FeedRangeInternal range = Mock.Of <FeedRangeInternal>();
Mock.Get(range)
.Setup(f => f.Accept(It.IsAny <FeedRangeRequestMessagePopulatorVisitor>()));
FeedRangeContinuation feedToken = Mock.Of <FeedRangeContinuation>();
Mock.Get(feedToken)
.Setup(f => f.FeedRange)
.Returns(range);
Mock.Get(feedToken)
.Setup(f => f.HandleSplitAsync(It.Is <ContainerInternal>(c => c == containerCore), It.IsAny <ResponseMessage>(), It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(Documents.ShouldRetryResult.NoRetry()));
Mock.Get(feedToken)
.Setup(f => f.HandleChangeFeedNotModified(It.IsAny <ResponseMessage>()))
.Returns(Documents.ShouldRetryResult.NoRetry());
ChangeFeedIteratorCore changeFeedIteratorCore = CreateWithCustomFeedToken(containerCore, feedToken);
bool creatorCalled = false;
Func <ResponseMessage, FeedResponse <dynamic> > creator = (ResponseMessage r) =>
{
creatorCalled = true;
return(Mock.Of <FeedResponse <dynamic> >());
};
FeedIteratorCore <dynamic> changeFeedIteratorCoreOfT = new FeedIteratorCore <dynamic>(changeFeedIteratorCore, creator);
FeedResponse <dynamic> response = await changeFeedIteratorCoreOfT.ReadNextAsync();
Mock.Get(feedToken)
.Verify(f => f.ReplaceContinuation(It.Is <string>(ct => ct == continuation)), Times.Once);
Mock.Get(feedToken)
.Verify(f => f.HandleSplitAsync(It.Is <ContainerInternal>(c => c == containerCore), It.IsAny <ResponseMessage>(), It.IsAny <CancellationToken>()), Times.Once);
Mock.Get(feedToken)
.Verify(f => f.HandleChangeFeedNotModified(It.IsAny <ResponseMessage>()), Times.Once);
Assert.IsTrue(creatorCalled, "Response creator not called");
}
public async Task ChangeFeed_FeedRange_FromV0Token()
{
ContainerResponse largerContainer = await this.database.CreateContainerAsync(
new ContainerProperties(id : Guid.NewGuid().ToString(), partitionKeyPath : "/status"),
throughput : 20000,
cancellationToken : this.cancellationToken);
ContainerInternal container = (ContainerInlineCore)largerContainer;
int expected = 100;
int count = 0;
await this.CreateRandomItems((ContainerCore)container, expected, randomPartitionKey : true);
IReadOnlyList <FeedRange> feedRanges = await container.GetFeedRangesAsync();
List <string> continuations = new List <string>();
// First do one request to construct the old model information based on Etag
foreach (FeedRange feedRange in feedRanges)
{
IEnumerable <string> pkRangeIds = await container.GetPartitionKeyRangesAsync(feedRange);
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
PageSizeHint = 1
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(
changeFeedStartFrom: ChangeFeedStartFrom.Beginning(feedRange),
changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
FeedRangeEpk FeedRangeEpk = feedRange as FeedRangeEpk;
// Construct the continuation's range, using PKRangeId + ETag
List <dynamic> ct = new List <dynamic>()
{
new
{
min = FeedRangeEpk.Range.Min,
max = FeedRangeEpk.Range.Max,
token = (string)null
}
};
// Extract Etag and manually construct the continuation
dynamic oldContinuation = new
{
V = 0,
Rid = await container.GetCachedRIDAsync(cancellationToken : this.cancellationToken),
Continuation = ct
};
continuations.Add(JsonConvert.SerializeObject(oldContinuation));
}
// Now start the new iterators with the constructed continuations from migration
foreach (string continuation in continuations)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
PageSizeHint = 100,
EmitOldContinuationToken = true,
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(
changeFeedStartFrom: ChangeFeedStartFrom.ContinuationToken(continuation),
changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
string migratedContinuation = firstResponse.ContinuationToken;
Assert.IsTrue(FeedRangeContinuation.TryParse(migratedContinuation, out FeedRangeContinuation feedRangeContinuation));
Assert.IsTrue(feedRangeContinuation.FeedRange is FeedRangeEpk);
}
}
Assert.AreEqual(expected, count);
}
public void ChangeFeedIteratorCore_HasMoreResultsDefault()
{
ChangeFeedIteratorCore changeFeedIteratorCore = ChangeFeedIteratorCore.Create(Mock.Of <ContainerInternal>(), null, null, null);
Assert.IsTrue(changeFeedIteratorCore.HasMoreResults);
}
public void ChangeFeedIteratorCore_Null_Container()
{
ChangeFeedIteratorCore.Create(null, null, null, new ChangeFeedRequestOptions());
}
public async Task TestCancellationTokenAsync()
{
CancellationTokenRequestHandler cancellationTokenHandler = new CancellationTokenRequestHandler();
ContainerInternal itemsCore = await this.InitializeContainerAsync();
await this.CreateRandomItems(itemsCore, 100, randomPartitionKey : true);
// Inject validating handler
RequestHandler currentInnerHandler = this.cosmosClient.RequestHandler.InnerHandler;
this.cosmosClient.RequestHandler.InnerHandler = cancellationTokenHandler;
cancellationTokenHandler.InnerHandler = currentInnerHandler;
{
// Test to see if the token flows to the pipeline
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(
ChangeFeedStartFrom.Beginning(),
ChangeFeedMode.Incremental) as ChangeFeedIteratorCore;
await feedIterator.ReadNextAsync(cancellationTokenSource.Token);
Assert.AreEqual(cancellationTokenSource.Token, cancellationTokenHandler.LastUsedToken, "The token passed did not reach the pipeline");
}
// See if cancellation token is honored for first request
try
{
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
cancellationTokenSource.Cancel();
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(
ChangeFeedStartFrom.Beginning(),
ChangeFeedMode.Incremental) as ChangeFeedIteratorCore;
await feedIterator.ReadNextAsync(cancellationTokenSource.Token);
Assert.Fail("Expected exception.");
}
catch (OperationCanceledException)
{
}
// See if cancellation token is honored for second request
try
{
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
cancellationTokenSource.Cancel();
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(
ChangeFeedStartFrom.Beginning(),
ChangeFeedMode.Incremental) as ChangeFeedIteratorCore;
await feedIterator.ReadNextAsync();
await feedIterator.ReadNextAsync(cancellationTokenSource.Token);
Assert.Fail("Expected exception.");
}
catch (OperationCanceledException)
{
}
// See if cancellation token is honored mid draining
try
{
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(
ChangeFeedStartFrom.Beginning(),
ChangeFeedMode.Incremental) as ChangeFeedIteratorCore;
await feedIterator.ReadNextAsync(cancellationTokenSource.Token);
cancellationTokenSource.Cancel();
await feedIterator.ReadNextAsync(cancellationTokenSource.Token);
Assert.Fail("Expected exception.");
}
catch (OperationCanceledException)
{
}
}
public async Task ChangeFeedIteratorCore_NoFetchNext()
{
int pkRangesCount = (await this.LargerContainer.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.LargerContainer.LinkUri)).Count;
int expected = 25;
int iterations = 0;
await this.CreateRandomItems(this.LargerContainer, expected, randomPartitionKey : true);
ContainerInternal itemsCore = this.LargerContainer;
string continuation = null;
int count = 0;
while (true)
{
ChangeFeedRequestOptions requestOptions;
if (continuation == null)
{
requestOptions = new ChangeFeedRequestOptions()
{
From = ChangeFeedRequestOptions.StartFrom.CreateFromBeginning(),
};
}
else
{
requestOptions = new ChangeFeedRequestOptions()
{
From = ChangeFeedRequestOptions.StartFrom.CreateFromContinuation(continuation),
};
}
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
using (ResponseMessage responseMessage = await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
count += response.Count;
}
else
{
if (responseMessage.StatusCode != HttpStatusCode.NotModified)
{
Assert.Fail(responseMessage.ErrorMessage);
}
}
continuation = responseMessage.ContinuationToken;
}
if (count.Equals(expected))
{
break;
}
if (iterations++ > pkRangesCount)
{
Assert.Fail("" +
"Feed does not contain all elements even after looping through PK ranges. " +
"Either the continuation is not moving forward or there is some state problem.");
}
}
}