public async Task GetChangeFeedTokensAsyncReturnsOnePerPartitionKeyRange()
{
// Setting mock to have 3 ranges, to generate 3 tokens
MultiRangeMockDocumentClient documentClient = new MultiRangeMockDocumentClient();
CosmosClient client = MockCosmosUtil.CreateMockCosmosClient();
Mock <CosmosClientContext> mockContext = new Mock <CosmosClientContext>();
mockContext.Setup(x => x.ClientOptions).Returns(MockCosmosUtil.GetDefaultConfiguration());
mockContext.Setup(x => x.DocumentClient).Returns(documentClient);
mockContext.Setup(x => x.DocumentQueryClient).Returns(Mock.Of <IDocumentQueryClient>());
mockContext.Setup(x => x.CosmosSerializer).Returns(MockCosmosUtil.Serializer);
mockContext.Setup(x => x.Client).Returns(client);
mockContext.Setup(x => x.CreateLink(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>())).Returns(UriFactory.CreateDocumentCollectionUri("test", "test"));
DatabaseCore db = new DatabaseCore(mockContext.Object, "test");
ContainerCore container = new ContainerCore(mockContext.Object, db, "test");
IEnumerable <string> tokens = await container.GetChangeFeedTokensAsync();
Assert.AreEqual(3, tokens.Count());
Routing.PartitionKeyRangeCache pkRangeCache = await documentClient.GetPartitionKeyRangeCacheAsync();
foreach (string token in tokens)
{
// Validate that each token represents a StandByFeedContinuationToken with a single Range
List <CompositeContinuationToken> deserialized = JsonConvert.DeserializeObject <List <CompositeContinuationToken> >(token);
Assert.AreEqual(1, deserialized.Count);
CompositeContinuationToken compositeToken = deserialized[0];
IReadOnlyList <Documents.PartitionKeyRange> rangesForTheToken = await pkRangeCache.TryGetOverlappingRangesAsync("", compositeToken.Range);
// Token represents one range
Assert.AreEqual(1, rangesForTheToken.Count);
Assert.AreEqual(rangesForTheToken[0].MinInclusive, compositeToken.Range.Min);
Assert.AreEqual(rangesForTheToken[0].MaxExclusive, compositeToken.Range.Max);
}
}
public async Task ShouldContinueUntilResponseOk()
{
// Setting 3 ranges, first one returns a 304, second returns Ok
MultiRangeMockDocumentClient documentClient = new MultiRangeMockDocumentClient();
using CosmosClient client = MockCosmosUtil.CreateMockCosmosClient();
Mock <CosmosClientContext> mockContext = new Mock <CosmosClientContext>();
mockContext.Setup(x => x.ClientOptions).Returns(MockCosmosUtil.GetDefaultConfiguration());
mockContext.Setup(x => x.DocumentClient).Returns(documentClient);
mockContext.Setup(x => x.SerializerCore).Returns(MockCosmosUtil.Serializer);
mockContext.Setup(x => x.Client).Returns(client);
mockContext.Setup(x => x.CreateLink(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>())).Returns("/dbs/test/colls/test");
ResponseMessage firstResponse = new ResponseMessage(HttpStatusCode.NotModified);
firstResponse.Headers.ETag = "FirstContinuation";
ResponseMessage secondResponse = new ResponseMessage(HttpStatusCode.OK);
secondResponse.Headers.ETag = "SecondContinuation";
mockContext.SetupSequence(x => x.ProcessResourceOperationAsync <ResponseMessage>(
It.IsAny <string>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerInternal>(),
It.IsAny <Cosmos.FeedRange>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <Func <ResponseMessage, ResponseMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <ITrace>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(firstResponse))
.Returns(Task.FromResult(secondResponse));
DatabaseInternal databaseCore = new DatabaseInlineCore(mockContext.Object, "mydb");
StandByFeedIteratorCore iterator = new StandByFeedIteratorCore(
mockContext.Object, new ContainerInlineCore(mockContext.Object, databaseCore, "myColl"), null, 10, new StandByFeedIteratorRequestOptions());
ResponseMessage firstRequest = await iterator.ReadNextAsync();
Assert.IsTrue(firstRequest.Headers.ContinuationToken.Contains(firstResponse.Headers.ETag), "Response should contain the first continuation");
Assert.IsTrue(firstRequest.Headers.ContinuationToken.Contains(secondResponse.Headers.ETag), "Response should contain the second continuation");
Assert.AreEqual(HttpStatusCode.OK, firstRequest.StatusCode);
mockContext.Verify(x => x.ProcessResourceOperationAsync <ResponseMessage>(
It.IsAny <string>(),
It.IsAny <Documents.ResourceType>(),
It.IsAny <Documents.OperationType>(),
It.IsAny <RequestOptions>(),
It.IsAny <ContainerInternal>(),
It.IsAny <Cosmos.FeedRange>(),
It.IsAny <Stream>(),
It.IsAny <Action <RequestMessage> >(),
It.IsAny <Func <ResponseMessage, ResponseMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <ITrace>(),
It.IsAny <CancellationToken>()), Times.Exactly(2));
}
public async Task ContinuationTokenIsNotUpdatedOnFails()
{
MultiRangeMockDocumentClient documentClient = new MultiRangeMockDocumentClient();
CosmosClient client = MockCosmosUtil.CreateMockCosmosClient();
Mock <CosmosClientContext> mockContext = new Mock <CosmosClientContext>();
mockContext.Setup(x => x.ClientOptions).Returns(MockCosmosUtil.GetDefaultConfiguration());
mockContext.Setup(x => x.DocumentClient).Returns(documentClient);
mockContext.Setup(x => x.SerializerCore).Returns(MockCosmosUtil.Serializer);
mockContext.Setup(x => x.Client).Returns(client);
mockContext.Setup(x => x.CreateLink(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>())).Returns(new Uri("/dbs/test/colls/test", UriKind.Relative));
ResponseMessage firstResponse = new ResponseMessage(HttpStatusCode.NotModified);
firstResponse.Headers.ETag = "FirstContinuation";
ResponseMessage secondResponse = new ResponseMessage(
statusCode: HttpStatusCode.NotFound,
requestMessage: null,
headers: new Headers()
{
ETag = "ShouldNotContainThis"
},
cosmosException: CosmosExceptionFactory.CreateNotFoundException("something"),
diagnostics: CosmosDiagnosticsContext.Create());
mockContext.SetupSequence(x => x.ProcessResourceOperationAsync <ResponseMessage>(
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 <Func <ResponseMessage, ResponseMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(firstResponse))
.Returns(Task.FromResult(secondResponse));
DatabaseCore databaseCore = new DatabaseCore(mockContext.Object, "mydb");
StandByFeedIteratorCore iterator = new StandByFeedIteratorCore(
mockContext.Object, new ContainerCore(mockContext.Object, databaseCore, "myColl"), null, 10, new ChangeFeedRequestOptions());
ResponseMessage firstRequest = await iterator.ReadNextAsync();
Assert.IsTrue(firstRequest.Headers.ContinuationToken.Contains(firstResponse.Headers.ETag), "Response should contain the first continuation");
Assert.IsTrue(!firstRequest.Headers.ContinuationToken.Contains(secondResponse.Headers.ETag), "Response should not contain the second continuation");
Assert.AreEqual(HttpStatusCode.NotFound, firstRequest.StatusCode);
mockContext.Verify(x => x.ProcessResourceOperationAsync <ResponseMessage>(
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 <Func <ResponseMessage, ResponseMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()), Times.Exactly(2));
}
public async Task ShouldReturnNotModifiedAfterCyclingOnAllRanges()
{
// Setting mock to have 3 ranges, this test will get a 304 on all 3 ranges, do 3 backend requests, and return a 304
MultiRangeMockDocumentClient documentClient = new MultiRangeMockDocumentClient();
CosmosClient client = MockCosmosUtil.CreateMockCosmosClient();
Mock <CosmosClientContext> mockContext = new Mock <CosmosClientContext>();
mockContext.Setup(x => x.ClientOptions).Returns(MockCosmosUtil.GetDefaultConfiguration());
mockContext.Setup(x => x.DocumentClient).Returns(documentClient);
mockContext.Setup(x => x.SerializerCore).Returns(MockCosmosUtil.Serializer);
mockContext.Setup(x => x.Client).Returns(client);
mockContext.Setup(x => x.CreateLink(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>())).Returns(new Uri("/dbs/test/colls/test", UriKind.Relative));
ResponseMessage firstResponse = new ResponseMessage(HttpStatusCode.NotModified);
firstResponse.Headers.ETag = "FirstContinuation";
ResponseMessage secondResponse = new ResponseMessage(HttpStatusCode.NotModified);
secondResponse.Headers.ETag = "SecondContinuation";
ResponseMessage thirdResponse = new ResponseMessage(HttpStatusCode.NotModified);
thirdResponse.Headers.ETag = "ThirdContinuation";
mockContext.SetupSequence(x => x.ProcessResourceOperationAsync <ResponseMessage>(
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 <Func <ResponseMessage, ResponseMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(firstResponse))
.Returns(Task.FromResult(secondResponse))
.Returns(Task.FromResult(thirdResponse));
DatabaseCore databaseCore = new DatabaseCore(mockContext.Object, "mydb");
StandByFeedIteratorCore iterator = new StandByFeedIteratorCore(
mockContext.Object, new ContainerCore(mockContext.Object, databaseCore, "myColl"), null, 10, new ChangeFeedRequestOptions());
ResponseMessage firstRequest = await iterator.ReadNextAsync();
Assert.IsTrue(firstRequest.Headers.ContinuationToken.Contains(firstResponse.Headers.ETag), "Response should contain the first continuation");
Assert.IsTrue(firstRequest.Headers.ContinuationToken.Contains(secondResponse.Headers.ETag), "Response should contain the second continuation");
Assert.IsTrue(firstRequest.Headers.ContinuationToken.Contains(thirdResponse.Headers.ETag), "Response should contain the third continuation");
Assert.AreEqual(HttpStatusCode.NotModified, firstRequest.StatusCode);
mockContext.Verify(x => x.ProcessResourceOperationAsync <ResponseMessage>(
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 <Func <ResponseMessage, ResponseMessage> >(),
It.IsAny <CosmosDiagnosticsContext>(),
It.IsAny <CancellationToken>()), Times.Exactly(3));
}
