public void BloomFilterAddDifferentSizesTest() { var addSize = 10000; var testData = DataGenerator.Generate().Take(addSize).ToArray(); var testData2 = DataGenerator.Generate().Skip(addSize).Take(addSize).ToArray(); var errorRate = 0.001F; var size = testData.Length; var configuration = new DefaultBloomFilterConfiguration(); var bloomFilter = new BloomFilter <TestEntity, long>(configuration); bloomFilter.Initialize(4 * size, errorRate); foreach (var itm in testData) { bloomFilter.Add(itm); } var bloomFilter2 = new BloomFilter <TestEntity, long>(configuration); //We have to create a foldable version. var data = bloomFilter.Extract(); var foldFactor = configuration.FoldingStrategy.GetAllFoldFactors(data.BlockSize).Where(f => f > 1).OrderBy(f => f).First(); bloomFilter2.Initialize(addSize, data.BlockSize / foldFactor, data.HashFunctionCount); foreach (var itm in testData2) { bloomFilter2.Add(itm); } bloomFilter.Add(bloomFilter2); var contained = testData.Union(testData2).Count(item => bloomFilter.Contains(item)); Assert.AreEqual(2 * addSize, contained, "Not all items found in added Bloom filters"); }