public void ReverseCompressTest()
{
var addSize = 10000;
var errorRate = 0.001F;
var data = DataGenerator.Generate().Take(addSize).ToArray();
var filter = new InvertibleReverseBloomFilter <TestEntity, long, sbyte>(new KeyValueBloomFilterConfiguration());
filter.Initialize(50 * data.Length, errorRate);
Assert.AreEqual(filter.Capacity, 500000, "Unexpected size of reverse Bloom filter.");
foreach (var item in data)
{
filter.Add(item);
}
//check error rate.
var notFoundCount = DataGenerator.Generate().Skip(addSize).Take(10000).Count(itm => filter.Contains(itm));
Assert.IsTrue(notFoundCount <= 4 * errorRate * addSize, "Uncompressed reverse Bloom filter exceeded error rate.");
filter.Compress(true);
Assert.AreEqual(filter.Capacity, 12820, "Unexpected size of compressed reverse Bloom filter.");
var compressNotFoundCount = DataGenerator.Generate().Skip(addSize).Take(10000).Count(itm => filter.Contains(itm));
Assert.IsTrue(compressNotFoundCount <= 4 * errorRate * addSize, "Compressed reverse Bloom filter exceeded error rate.");
}