public void when_cannot_connect_to_database_then_on_completed_should_not_stall_or_throw()
{
const string validNotExisting = @"Data Source=(localdb)\v11.0; AttachDBFilename='|DataDirectory|\DoesNotExist.mdf';Initial Catalog=SemanticLoggingTests;Integrated Security=True";
using (var sink = new SqlDatabaseSink("test", validNotExisting, "tableName", Buffering.DefaultBufferingInterval, Buffering.DefaultBufferingCount, Buffering.DefaultMaxBufferSize, TimeSpan.FromSeconds(20)))
using (var collectErrorsListener = new MockEventListener())
{
collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Error, Keywords.All);
sink.OnNext(new EventRecord());
Assert.IsTrue(Task.Run(() => sink.OnCompleted()).Wait(TimeSpan.FromSeconds(5)));
Assert.IsTrue(collectErrorsListener.WrittenEntries.Any(x => x.EventId == 101));
}
}
public void when_cannot_connect_to_database_then_flush_should_finish_faulted()
{
const string ValidNotExisting = @"Data Source=(localdb)\v11.0; AttachDBFilename='|DataDirectory|\DoesNotExist.mdf';Initial Catalog=SemanticLoggingTests;Integrated Security=True";
using (var sink = new SqlDatabaseSink("test", ValidNotExisting, "tableName", Buffering.DefaultBufferingInterval, Buffering.DefaultBufferingCount, Buffering.DefaultMaxBufferSize, TimeSpan.FromSeconds(20)))
using (var collectErrorsListener = new MockEventListener())
{
collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Error, Keywords.All);
sink.OnNext(EventEntryTestHelper.Create());
try
{
Assert.IsTrue(sink.FlushAsync().Wait(TimeSpan.FromSeconds(5)));
Assert.Fail("Exception should be thrown.");
}
catch (AggregateException ex)
{
Assert.IsInstanceOfType(ex.InnerException, typeof(FlushFailedException));
}
Assert.IsTrue(collectErrorsListener.WrittenEntries.Any(x => x.EventId == 101));
}
}
// Ignoring because the storage client library considers inexistant account as transient so it retries and the exponential back-off could take time
public void when_cannot_connect_to_storage_account_then_flush_should_finish_faulted()
{
const string ValidNotExisting = "DefaultEndpointsProtocol=https;AccountName=InexistantDoesntReallyMatter;AccountKey=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa==";
using (var sink = new WindowsAzureTableSink("instanceName", ValidNotExisting, "Table", TimeSpan.FromSeconds(1), 5000, TimeSpan.FromSeconds(20)))
using (var collectErrorsListener = new MockEventListener())
{
collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Error, Keywords.All);
sink.OnNext(new CloudEventEntry(EventEntryTestHelper.Create()));
try
{
Assert.IsTrue(sink.FlushAsync().Wait(TimeSpan.FromSeconds(15)));
Assert.Fail("Exception should be thrown.");
}
catch (AggregateException ex)
{
Assert.IsInstanceOfType(ex.InnerException, typeof(FlushFailedException));
}
Assert.IsTrue(collectErrorsListener.WrittenEntries.Any(x => x.EventId == 500));
}
}
public void when_cannot_connect_to_database_then_flush_should_finish_faulted()
{
const string ValidNotExisting = @"Data Source=(localdb)\v11.0; AttachDBFilename='|DataDirectory|\DoesNotExist.mdf';Initial Catalog=SemanticLoggingTests;Integrated Security=True";
using (var sink = new SqlDatabaseSink("test", ValidNotExisting, "tableName", Buffering.DefaultBufferingInterval, Buffering.DefaultBufferingCount, Buffering.DefaultMaxBufferSize, TimeSpan.FromSeconds(20)))
using (var collectErrorsListener = new MockEventListener())
{
collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Error, Keywords.All);
sink.OnNext(EventEntryTestHelper.Create());
//ERH 6.26.2015: there is volatility around the delay when under load; the longer the delay the more likely the test will pass.
// This probably indicates some kind of missed case or a bad assumption about the underlying implementation
const int waitTimeInSeconds = 10;
try
{
Assert.IsTrue(sink.FlushAsync().Wait(TimeSpan.FromSeconds(waitTimeInSeconds)));
Assert.Fail("Exception should be thrown.");
}
catch (AggregateException ex)
{
Console.WriteLine(ex.GetType());
Assert.IsNotNull(ex.InnerException, "ex.InnerException != null");
Console.WriteLine(ex.InnerException.GetType());
Assert.IsInstanceOfType(ex.InnerException, typeof(FlushFailedException),
"exception should be of type FlushFailedException");
}
Assert.IsTrue(
collectErrorsListener.WrittenEntries.Any(
x => x.EventId == 101
),
"should have entries for eventid 101"
);
}
}
protected override void Given()
{
base.Given();
this.sink = new SqlDatabaseSink(InstanceName, this.GetSqlConnectionString(), SqlDatabaseLog.DefaultTableName, Buffering.DefaultBufferingInterval, NumberOfEntries, Buffering.DefaultMaxBufferSize, Timeout.InfiniteTimeSpan);
this.collectErrorsListener = new MockEventListener();
this.collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Error, Keywords.All);
}
// Ignoring because the storage client library considers inexistant account as transient so it retries and the exponential back-off could take time
public void when_cannot_connect_to_storage_account_then_on_completed_should_not_stall_or_throw()
{
const string ValidNotExisting = "DefaultEndpointsProtocol=https;AccountName=InexistantDoesntReallyMatter;AccountKey=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa==";
using (var sink = new WindowsAzureTableSink("instanceName", ValidNotExisting, "Table", TimeSpan.FromSeconds(1), 5000, TimeSpan.FromSeconds(20)))
using (var collectErrorsListener = new MockEventListener())
{
collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Error, Keywords.All);
sink.OnNext(new CloudEventEntry(EventEntryTestHelper.Create()));
Assert.IsTrue(Task.Run(() => sink.OnCompleted()).Wait(TimeSpan.FromSeconds(15)));
Assert.IsTrue(collectErrorsListener.WrittenEntries.Any(x => x.EventId == 500));
}
}
protected override void Given()
{
this.collectErrorsListener = new MockEventListener();
this.collectErrorsListener.EnableEvents(SemanticLoggingEventSource.Log, EventLevel.Informational, SemanticLoggingEventSource.Keywords.Sink);
this.sink = new TestableWindowsAzureTableSink("TestName", maxBufferSize: BufferSize);
sink.WaitHandle.Reset();
}