public void IfFeedFillsExactlyToQuotaShouldNotBeArchived()
{
FileName tempFileName = null;
FeedBuilder feedBuilder = new FeedBuilder(SampleLinks.Instance);
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBuffer();
Repeat.Times(3).Action(() => buffer.Add(new EventBuilder().Build()));
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
feedWriter.FeedMappingsChanged += ((o, args) => tempFileName = new FileName(args.RecentEventsFeedStoreId));
timer.Fire();
Assert.AreEqual(1, fileSystem.FileCount(fileSystem.CurrentDirectory));
Assert.AreEqual(0, fileSystem.FileCount(fileSystem.ArchiveDirectory));
RecentEventsFeed rehydratedFeed = feedBuilder.LoadRecentEventsFeed(fileSystem, tempFileName);
Assert.AreEqual(3, rehydratedFeed.GetSyndicationFeed().Items.Count());
}
public void ShouldRaiseEventEachTimeATempFileIsSavedToCurrentDirectory()
{
int eventCount = 0;
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBufferBuilder().Build();
EventBuilder eventBuilder = new EventBuilder();
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
feedWriter.FeedMappingsChanged += ((o, args) => eventCount++);
//Current will contain 1 - 1st version of 1 will be saved to current
Repeat.Times(1).Action(() => buffer.Add(eventBuilder.Build()));
timer.Fire();
//Current will contain full feed - 2nd version of 1 will be saved to current
Repeat.Times(RecentEventsFeed.Quota - 1).Action(() => buffer.Add(eventBuilder.Build()));
timer.Fire();
//Feed will be archived 3 times - 1st version of 4 will be saved to current
Repeat.Times((RecentEventsFeed.Quota * 3) - 1).Action(() => buffer.Add(eventBuilder.Build()));
timer.Fire();
Assert.AreEqual(3, eventCount);
Assert.AreEqual(3, fileSystem.FileCount(fileSystem.CurrentDirectory));
Assert.AreEqual(3, fileSystem.FileCount(fileSystem.ArchiveDirectory));
Assert.IsTrue(fileSystem.FileExists(fileSystem.ArchiveDirectory, new FileName("1")));
Assert.IsTrue(fileSystem.FileExists(fileSystem.ArchiveDirectory, new FileName("2")));
Assert.IsTrue(fileSystem.FileExists(fileSystem.ArchiveDirectory, new FileName("3")));
}
public void WhenTriggeredShouldAddBatchOfEventsToCurrentFeed()
{
FileName tempFileName = null;
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBuffer();
EventBuilder eventBuilder = new EventBuilder();
Repeat.Times(2).Action(() => buffer.Add(eventBuilder.Build()));
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
feedWriter.FeedMappingsChanged += ((o, args) => tempFileName = new FileName(args.RecentEventsFeedStoreId));
timer.Fire();
Assert.AreEqual(1, fileSystem.FileCount(fileSystem.CurrentDirectory));
RecentEventsFeed rehydratedFeed = new FeedBuilder(SampleLinks.Instance).LoadRecentEventsFeed(fileSystem, tempFileName);
Assert.AreEqual(2, rehydratedFeed.GetNumberOfEntries());
}
public void WhenTriggeredRepeatedlyShouldContinueToAddEventsToExistingFeed()
{
FileName tempFileName = null;
FeedBuilder feedBuilder = new FeedBuilder(SampleLinks.Instance);
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBuffer();
buffer.Add(new EventBuilder().Build());
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
feedWriter.FeedMappingsChanged += ((o, args) => tempFileName = new FileName(args.RecentEventsFeedStoreId));
timer.Fire();
RecentEventsFeed rehydratedFeed = feedBuilder.LoadRecentEventsFeed(fileSystem, tempFileName);
Assert.AreEqual(1, rehydratedFeed.GetSyndicationFeed().Items.Count());
Assert.AreEqual("?page=1", rehydratedFeed.GetSyndicationFeed().GetViaLink().Uri.Query);
buffer.Add(new EventBuilder().Build());
timer.Fire();
RecentEventsFeed secondRehydratedFeed = feedBuilder.LoadRecentEventsFeed(fileSystem, tempFileName);
Assert.AreEqual(2, secondRehydratedFeed.GetSyndicationFeed().Items.Count());
Assert.AreEqual("?page=1", secondRehydratedFeed.GetSyndicationFeed().GetViaLink().Uri.Query);
}
public void WhenThereAreNoOutstandingEventsShouldRetainTheCurrentTempFileName()
{
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBuffer();
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
Repeat.Times(1).Action(() => buffer.Add(new EventBuilder().Build()));
timer.Fire();
Repeat.Times(0).Action(() => buffer.Add(new EventBuilder().Build()));
timer.Fire();
Repeat.Times(1).Action(() => buffer.Add(new EventBuilder().Build()));
timer.Fire();
Assert.AreEqual(2, fileSystem.FileCount(fileSystem.CurrentDirectory));
}
public void WhenThereAreNoOutstandingEventsShouldNotWriteFeedOrRaiseEvent()
{
int eventCount = 0;
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBuffer();
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
feedWriter.FeedMappingsChanged += ((o, args) => eventCount++);
timer.Fire();
Assert.AreEqual(0, eventCount);
Assert.AreEqual(0, fileSystem.FileCount(fileSystem.CurrentDirectory));
}
public void WhenNumberOfEventsExceedsQuotaShouldArchiveFeedAndBeginAnotherOne()
{
FileName tempFileName = null;
FeedBuilder feedBuilder = new FeedBuilder(SampleLinks.Instance);
InMemoryFileSystem fileSystem = new InMemoryFileSystem();
EventBuffer buffer = new EventBuffer();
EventBuilder eventBuilder = new EventBuilder();
Repeat.Times(RecentEventsFeed.Quota + 1).Action(() => buffer.Add(eventBuilder.Build()));
FakeTimer timer = new FakeTimer();
FeedWriter feedWriter = new FeedWriter(timer, buffer, fileSystem, new FeedBuilder(SampleLinks.Instance));
feedWriter.FeedMappingsChanged += ((o, args) => tempFileName = new FileName(args.RecentEventsFeedStoreId));
timer.Fire();
Assert.AreEqual(1, fileSystem.FileCount(fileSystem.CurrentDirectory));
Assert.AreEqual(1, fileSystem.FileCount(fileSystem.ArchiveDirectory));
ArchiveFeed archivedFeed = LoadArchiveFeed(fileSystem, new FileName("1"));
Assert.AreEqual(10, archivedFeed.GetNumberOfEntries());
Assert.AreEqual("?page=1", archivedFeed.GetSyndicationFeed().GetSelfLink().Uri.Query);
Assert.AreEqual("?page=2", archivedFeed.GetSyndicationFeed().GetNextArchiveLink().Uri.Query);
RecentEventsFeed recentEventsFeed = feedBuilder.LoadRecentEventsFeed(fileSystem, tempFileName);
Assert.AreEqual(1, recentEventsFeed.GetSyndicationFeed().Items.Count());
Assert.AreEqual("?page=2", recentEventsFeed.GetSyndicationFeed().GetViaLink().Uri.Query);
}