public void AddMultipleDifferentItemsToBloomTest()
{
BloomConfiguration config = new BloomConfiguration {
BloomFilterSize = 8 * (long)BloomFilterSizeMultipliers.Bits,
};
BloomFilter bloomFilter = new BloomFilter(config);
string testString = $"TestString";
byte[] testByteArray1 = Encoding.ASCII.GetBytes(testString);
string testString2 = $"TestString2";
byte[] testByteArray2 = Encoding.ASCII.GetBytes(testString2);
bloomFilter.Add(testByteArray1);
bloomFilter.Add(testByteArray2);
bool[] actual = bloomFilter.Filter;
bool[] expected = { true, false, true, true, false, true, false, true };
Assert.True(CompareBoolArrays(expected, actual));
Assert.True(bloomFilter.Contains(testByteArray1));
Assert.True(bloomFilter.Contains(testByteArray2));
}
public void UseAdditionalHashFunctionsTest()
{
BloomConfiguration config = new BloomConfiguration {
BloomFilterSize = 1 * (long)BloomFilterSizeMultipliers.Bytes,
HashAlgorithms = new List <Type> {
typeof(MD5CryptoServiceProvider),
typeof(SHA1CryptoServiceProvider),
typeof(SHA256CryptoServiceProvider),
typeof(SHA384CryptoServiceProvider),
typeof(SHA512CryptoServiceProvider)
}
};
BloomFilter bloomFilter = new BloomFilter(config);
string testString = $"TestString";
byte[] testByteArray1 = Encoding.ASCII.GetBytes(testString);
string testString2 = $"TestString2";
byte[] testByteArray2 = Encoding.ASCII.GetBytes(testString2);
bloomFilter.Add(testByteArray1);
bloomFilter.Add(testByteArray2);
bool[] actual = bloomFilter.Filter;
PrintFilterResults(actual);
bool[] expected = { true, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, true, false, false, false, false, false, false, false, true, true, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, false, true, false, false, false, false, false, true, false, false, true, false, false,false,
false };
Assert.True(CompareBoolArrays(expected, actual));
Assert.True(bloomFilter.Contains(testByteArray1));
Assert.True(bloomFilter.Contains(testByteArray2));
}
public BloomFilter(BloomConfiguration configuration)
{
_size = configuration.BloomFilterSize;
_hashAlgorithms = configuration.HashAlgorithms;
_filter = new bool[_size];
}
