public void E2E_CriteriaWithTimespanZero_ThrowsNthExceptionRegardlessOfTime()
{
ExceptionBuffer buffer = new ExceptionBuffer();
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.GetType() == typeof(MulticastNotSupportedException)),
FrequencyAllowed = new Frequency(10, TimeSpan.Zero)
});
List<string> messagesThrown = new List<string>();
int thrownCount = 0;
for (int i = 1; i <= 55; i++)
{
Thread.Sleep(new Random().Next(100));
try
{
buffer.HandleException(new MulticastNotSupportedException());
}
catch (MulticastNotSupportedException)
{
Assert.AreEqual(0, i % 11);
thrownCount++;
}
}
Assert.AreEqual(5, thrownCount);
}
public void E2E_MultipleExceptionsOfSameTypeThrownNotEnough_ProducesNoException()
{
//NOTE: no asserts because if this test fails it should throw an exception anyway
ExceptionBuffer buffer = new ExceptionBuffer();
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.GetType() == typeof(DivideByZeroException)),
FrequencyAllowed = new Frequency(9, TimeSpan.FromSeconds(15.0))
});
int i = 1;
for (; i <= 8; i++)
{
Thread.Sleep(100);
buffer.HandleException(new DivideByZeroException());
}
}
public void E2E_MultipleExceptionsOfSameTypeThrownTooManyTimes_ProducesOnlyOneException()
{
//NOTE: no asserts because if this test fails it should throw an exception anyway
ExceptionBuffer buffer = new ExceptionBuffer();
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.GetType() == typeof(DivideByZeroException)),
FrequencyAllowed = new Frequency(9, TimeSpan.FromSeconds(10.0))
});
int i = 1;
try
{
for (; i <= 10; i++)
{
Thread.Sleep(100);
buffer.HandleException(new DivideByZeroException());
}
Assert.Fail("Should have thrown 10th exception");
}
catch (DivideByZeroException ex)
{
Assert.AreEqual(10, i);
}
}
public void E2E_WhenNoCriteriaMatches_ExceptionGetsThrown()
{
ExceptionBuffer buffer = new ExceptionBuffer();
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.GetType() == typeof(DivideByZeroException)),
FrequencyAllowed = new Frequency(9, TimeSpan.FromSeconds(10.0))
});
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.GetType() == typeof(NotFiniteNumberException)),
FrequencyAllowed = new Frequency(10, TimeSpan.FromSeconds(15.0))
});
int i = 1;
for (int j = 0; j < 5; j++)
{
try
{
for (; i <= 10; i++)
{
Thread.Sleep(100);
buffer.HandleException(new DivideByZeroException());
}
Assert.Fail("Should have thrown 10th exception");
}
catch (DivideByZeroException ex)
{
Assert.AreEqual(10, i);
}
i = 1;
}
}
public void E2E_WhenMultipleCriteriaMatches_AddedToEachCriteriaCount()
{
ExceptionBuffer buffer = new ExceptionBuffer();
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.Message.Contains("Marco")),
FrequencyAllowed = new Frequency(6, TimeSpan.FromSeconds(15.0))
});
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.Message.Contains("Polo")),
FrequencyAllowed = new Frequency(7, TimeSpan.FromSeconds(15.0))
});
List<string> messagesThrown = new List<string>();
for (int i = 0; i < 8; i++)
{
try
{
buffer.HandleException(new ApplicationException(string.Format("Marco Polo {0}", i)));
}
catch (ApplicationException appEx)
{
messagesThrown.Add(appEx.Message);
}
}
Assert.AreEqual(2, messagesThrown.Count);
Assert.IsTrue(messagesThrown.Contains("Marco Polo 6"));
Assert.IsTrue(messagesThrown.Contains("Marco Polo 7"));
}
public void E2E_MultipleExceptionsOfSameType_WhenReachesLimitAndThrowsException_StartsOverAgain()
{
ExceptionBuffer buffer = new ExceptionBuffer();
buffer.Add(
new ExceptionBufferingCriteria()
{
ExceptionCriteria = (ex => ex.GetType() == typeof(DivideByZeroException)),
FrequencyAllowed = new Frequency(9, TimeSpan.FromSeconds(10.0))
});
int i = 1;
for (int j = 0; j < 5; j++)
{
try
{
for (; i <= 10; i++)
{
Thread.Sleep(100);
buffer.HandleException(new DivideByZeroException());
}
Assert.Fail("Should have thrown 10th exception");
}
catch (DivideByZeroException ex)
{
Assert.AreEqual(10, i);
}
i = 1;
}
}