private static void Test_CalculateEstimatedCount_ShouldBeWithinAcceptableErrorRange(
HyperLogLog hyperLogLog,
int n,
double acceptablePercentError)
{
// Act
int estimatedCount = hyperLogLog.CalculateEstimatedCount();
// Assert
Assert.That(estimatedCount, Is.EqualTo(n).Within(acceptablePercentError).Percent);
}
public void SerializeDeserialize_SameEstimate(int n, byte b)
{
// Arrange
HyperLogLog hyperLogLog = CreateHyperLogLogWithHashedStrings(n, b);
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
// Act
formatter.Serialize(stream, hyperLogLog);
stream.Position = 0;
HyperLogLog deserialized = (HyperLogLog)formatter.Deserialize(stream);
// Assert
int originalEstimate = hyperLogLog.CalculateEstimatedCount();
Assert.That(originalEstimate, Is.GreaterThan(0.9 * n));
Assert.That(originalEstimate, Is.EqualTo(deserialized.CalculateEstimatedCount()));
}
