public async Task StandByFeedIterator_EmptyBeginning()
{
int totalCount = 0;
int expectedDocuments = 5;
string lastcontinuation = string.Empty;
Documents.Routing.Range <string> previousRange = null;
Documents.Routing.Range <string> currentRange = null;
int pkRangesCount = (await this.Container.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.Container.LinkUri)).Count;
int visitedPkRanges = 0;
ContainerCore itemsCore = (ContainerCore)this.Container;
FeedIterator feedIterator = itemsCore.GetStandByFeedIterator();
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
lastcontinuation = responseMessage.Headers.ContinuationToken;
Assert.AreEqual(responseMessage.ContinuationToken, responseMessage.Headers.ContinuationToken);
List <CompositeContinuationToken> deserializedToken = JsonConvert.DeserializeObject <List <CompositeContinuationToken> >(lastcontinuation);
currentRange = deserializedToken[0].Range;
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.Serializer.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
else
{
if (visitedPkRanges == 0)
{
await this.CreateRandomItems(this.Container, expectedDocuments, randomPartitionKey : true);
}
}
if (visitedPkRanges == pkRangesCount && responseMessage.StatusCode == System.Net.HttpStatusCode.NotModified)
{
break;
}
if (!currentRange.Equals(previousRange))
{
visitedPkRanges++;
}
previousRange = currentRange;
}
}
Assert.AreEqual(expectedDocuments, totalCount);
}
public async Task StandByFeedIterator()
{
int totalCount = 0;
string lastcontinuation = string.Empty;
int firstRunTotal = 25;
int batchSize = 25;
Documents.Routing.Range <string> previousRange = null;
Documents.Routing.Range <string> currentRange = null;
int pkRangesCount = (await this.Container.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.Container.LinkUri)).Count;
int visitedPkRanges = 0;
await this.CreateRandomItems(batchSize, randomPartitionKey : true);
ContainerCore itemsCore = (ContainerCore)this.Container;
FeedIterator feedIterator = itemsCore.GetStandByFeedIterator(requestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue
});
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
lastcontinuation = responseMessage.Headers.Continuation;
List <CompositeContinuationToken> deserializedToken = JsonConvert.DeserializeObject <List <CompositeContinuationToken> >(lastcontinuation);
currentRange = deserializedToken[0].Range;
Assert.AreEqual(pkRangesCount, deserializedToken.Count);
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = new CosmosJsonSerializerCore().FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
if (!currentRange.Equals(previousRange))
{
visitedPkRanges++;
}
if (visitedPkRanges == pkRangesCount && responseMessage.StatusCode == System.Net.HttpStatusCode.NotModified)
{
break;
}
previousRange = currentRange;
}
}
Assert.AreEqual(firstRunTotal, totalCount);
int expectedFinalCount = 50;
previousRange = null;
currentRange = null;
visitedPkRanges = 0;
// Insert another batch of 25 and use the last continuation token from the first cycle
await this.CreateRandomItems(batchSize, randomPartitionKey : true);
FeedIterator setIteratorNew =
itemsCore.GetStandByFeedIterator(lastcontinuation);
while (setIteratorNew.HasMoreResults)
{
using (ResponseMessage responseMessage =
await setIteratorNew.ReadNextAsync(this.cancellationToken))
{
lastcontinuation = responseMessage.Headers.Continuation;
currentRange = JsonConvert.DeserializeObject <List <CompositeContinuationToken> >(lastcontinuation)[0].Range;
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = new CosmosJsonSerializerCore().FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
if (!currentRange.Equals(previousRange))
{
visitedPkRanges++;
}
if (visitedPkRanges == pkRangesCount && responseMessage.StatusCode == System.Net.HttpStatusCode.NotModified)
{
break;
}
previousRange = currentRange;
}
}
Assert.AreEqual(expectedFinalCount, totalCount);
}