public async Task FeedToken_EPK_HandleSplits()
{
List <CompositeContinuationToken> compositeContinuationTokens = new List <CompositeContinuationToken>()
{
FeedTokenTests.BuildTokenForRange("A", "C", "token1"),
FeedTokenTests.BuildTokenForRange("C", "F", "token2")
};
FeedTokenEPKRange feedTokenEPKRange = new FeedTokenEPKRange(Guid.NewGuid().ToString(), new Documents.Routing.Range <string>(compositeContinuationTokens[0].Range.Min, compositeContinuationTokens[1].Range.Min, true, false), compositeContinuationTokens);
MultiRangeMockDocumentClient documentClient = new MultiRangeMockDocumentClient();
Mock <CosmosClientContext> cosmosClientContext = new Mock <CosmosClientContext>();
cosmosClientContext.Setup(c => c.ClientOptions).Returns(new CosmosClientOptions());
cosmosClientContext.Setup(c => c.DocumentClient).Returns(documentClient);
Mock <ContainerCore> containerCore = new Mock <ContainerCore>();
containerCore
.Setup(c => c.ClientContext).Returns(cosmosClientContext.Object);
Assert.AreEqual(2, feedTokenEPKRange.CompositeContinuationTokens.Count);
ResponseMessage split = new ResponseMessage(HttpStatusCode.Gone);
split.Headers.SubStatusCode = Documents.SubStatusCodes.PartitionKeyRangeGone;
Assert.IsTrue(await feedTokenEPKRange.ShouldRetryAsync(containerCore.Object, split));
// verify token state
// Split should have updated initial and created a new token at the end
Assert.AreEqual(3, feedTokenEPKRange.CompositeContinuationTokens.Count);
CompositeContinuationToken[] continuationTokens = feedTokenEPKRange.CompositeContinuationTokens.ToArray();
// First token is split
Assert.AreEqual(compositeContinuationTokens[0].Token, continuationTokens[0].Token);
Assert.AreEqual(documentClient.AvailablePartitionKeyRanges[0].MinInclusive, continuationTokens[0].Range.Min);
Assert.AreEqual(documentClient.AvailablePartitionKeyRanges[0].MaxExclusive, continuationTokens[0].Range.Max);
// Second token remains the same
Assert.AreEqual(compositeContinuationTokens[1].Token, continuationTokens[1].Token);
Assert.AreEqual(compositeContinuationTokens[1].Range.Min, continuationTokens[1].Range.Min);
Assert.AreEqual(compositeContinuationTokens[1].Range.Max, continuationTokens[1].Range.Max);
// New third token
Assert.AreEqual(compositeContinuationTokens[0].Token, continuationTokens[2].Token);
Assert.AreEqual(documentClient.AvailablePartitionKeyRanges[1].MinInclusive, continuationTokens[2].Range.Min);
Assert.AreEqual(documentClient.AvailablePartitionKeyRanges[1].MaxExclusive, continuationTokens[2].Range.Max);
}
public async Task FeedToken_EPK_ShouldRetry()
{
List <CompositeContinuationToken> compositeContinuationTokens = new List <CompositeContinuationToken>()
{
FeedTokenTests.BuildTokenForRange("A", "C", "token1"),
FeedTokenTests.BuildTokenForRange("C", "F", "token2")
};
FeedTokenEPKRange feedTokenEPKRange = new FeedTokenEPKRange(Guid.NewGuid().ToString(), new Documents.Routing.Range <string>(compositeContinuationTokens[0].Range.Min, compositeContinuationTokens[1].Range.Min, true, false), compositeContinuationTokens);
ContainerCore containerCore = Mock.Of <ContainerCore>();
Assert.IsFalse(await feedTokenEPKRange.ShouldRetryAsync(containerCore, new ResponseMessage(HttpStatusCode.OK)));
// A 304 on a multi Range token should cycle on all available ranges before stopping retrying
Assert.IsTrue(await feedTokenEPKRange.ShouldRetryAsync(containerCore, new ResponseMessage(HttpStatusCode.NotModified)));
feedTokenEPKRange.UpdateContinuation(Guid.NewGuid().ToString());
Assert.IsTrue(await feedTokenEPKRange.ShouldRetryAsync(containerCore, new ResponseMessage(HttpStatusCode.NotModified)));
feedTokenEPKRange.UpdateContinuation(Guid.NewGuid().ToString());
Assert.IsFalse(await feedTokenEPKRange.ShouldRetryAsync(containerCore, new ResponseMessage(HttpStatusCode.NotModified)));
}