public byte[] MetroHash128IncrementalSpanDirectReturn()
{
var metroHash = new MetroHash128(0);
metroHash.Update(Data);
return(metroHash.FinalizeHash());
}
public byte[] MetroHash128Incremental()
{
var metroHash = new MetroHash128(0);
metroHash.Update(Data, 0, Data.Length);
return(metroHash.FinalizeHash());
}
public void IncrementalMultiUpdateSpan(int partSize)
{
var input = Encoding.ASCII.GetBytes(TestString);
var metroHash = new MetroHash128(0);
var remaining = input.Length;
var offset = 0;
while (remaining > 0)
{
var part = new byte[partSize];
var toCopy = Math.Min(partSize, remaining);
Buffer.BlockCopy(input, offset, part, 0, toCopy);
metroHash.Update(part.AsSpan().Slice(0, toCopy));
remaining -= toCopy;
offset += toCopy;
}
var hash = metroHash.FinalizeHash();
var comparison = new byte[]
{
0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B,
0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97
};
Assert.Equal(comparison, hash);
}
public byte[] MetroHash128IncrementalSpan()
{
var metroHash = new MetroHash128(0);
metroHash.Update(Data);
metroHash.FinalizeHash(Buffer);
return(Buffer);
}
public void NonIncrementalSeed0Span()
{
var input = Encoding.ASCII.GetBytes(TestString);
Span <byte> span = stackalloc byte[16];
MetroHash128.Hash(0, input, span);
var comparison = new byte[]
{
0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B,
0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97
};
Assert.True(span.SequenceEqual(comparison));
}
public void NonIncrementalSeed1()
{
var input = Encoding.ASCII.GetBytes(TestString);
var hash = MetroHash128.Hash(1, input, 0, input.Length);
var secondHash = OldMetroHash128.Hash(1, input, 0, input.Length);
var comparison = new byte[]
{
0x45, 0xA3, 0xCD, 0xB8, 0x38, 0x19, 0x9D, 0x7F,
0xBD, 0xD6, 0x8D, 0x86, 0x7A, 0x14, 0xEC, 0xEF
};
Assert.Equal(comparison, hash);
Assert.Equal(comparison, secondHash);
}
public void NonIncrementalSeed1Span()
{
var input = Encoding.ASCII.GetBytes(TestString);
Span <byte> span = stackalloc byte[16];
MetroHash128.Hash(1, input, span);
var comparison = new byte[]
{
0x45, 0xA3, 0xCD, 0xB8, 0x38, 0x19, 0x9D, 0x7F,
0xBD, 0xD6, 0x8D, 0x86, 0x7A, 0x14, 0xEC, 0xEF
};
Assert.True(span.SequenceEqual(comparison));
}
public void NonIncrementalSeed0()
{
var input = Encoding.ASCII.GetBytes(TestString);
var hash = MetroHash128.Hash(0, input, 0, input.Length);
var secondHash = OldMetroHash128.Hash(0, input, 0, input.Length);
var comparison = new byte[]
{
0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B,
0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97
};
Assert.Equal(comparison, hash);
Assert.Equal(comparison, secondHash);
}
public void IncrementalSeed0()
{
var input = Encoding.ASCII.GetBytes(TestString);
var metroHash = new MetroHash128(0);
metroHash.Update(input, 0, input.Length);
var hash = metroHash.FinalizeHash();
var comparison = new byte[]
{
0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B,
0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97
};
Assert.Equal(comparison, hash);
}
public void IncrementalSeed1()
{
var input = Encoding.ASCII.GetBytes(TestString);
var metroHash = new MetroHash128(1);
metroHash.Update(input, 0, input.Length);
var hash = metroHash.FinalizeHash();
var comparison = new byte[]
{
0x45, 0xA3, 0xCD, 0xB8, 0x38, 0x19, 0x9D, 0x7F,
0xBD, 0xD6, 0x8D, 0x86, 0x7A, 0x14, 0xEC, 0xEF
};
Assert.Equal(comparison, hash);
}
public void IncrementalSeed0Span()
{
var input = Encoding.ASCII.GetBytes(TestString);
var metroHash = new MetroHash128(0);
metroHash.Update(input);
Span <byte> span = stackalloc byte[16];
metroHash.FinalizeHash(span);
var comparison = new byte[]
{
0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B,
0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97
};
Assert.True(span.SequenceEqual(comparison));
}
public void MultipleSizes(int size)
{
var prng = new Random();
var input = new byte[size];
prng.NextBytes(input);
for (var i = 0; i < size; i++)
{
var firstHash = MetroHash128.Hash(0, input, 0, input.Length);
var metroHash = new MetroHash128(0);
metroHash.Update(input, 0, input.Length);
var secondHash = metroHash.FinalizeHash();
Assert.Equal(firstHash, secondHash);
var thirdHash = OldMetroHash128.Hash(0, input, 0, input.Length);
Assert.Equal(firstHash, thirdHash);
}
}
public void MultipleSizesSpan(int size)
{
var prng = new Random();
var input = new byte[size];
prng.NextBytes(input);
for (var i = 0; i < size; i++)
{
Span <byte> firstHash = stackalloc byte[16];
MetroHash128.Hash(0, input.AsSpan(), firstHash);
var metroHash = new MetroHash128(0);
metroHash.Update(input.AsSpan());
var secondHash = metroHash.FinalizeHash();
Assert.Equal(firstHash.ToArray(), secondHash);
var thirdHash = OldMetroHash128.Hash(0, input, 0, input.Length);
Assert.Equal(firstHash.ToArray(), thirdHash);
}
}
public void RandomSizesSpan()
{
for (var i = 0; i < 1000; i++)
{
var prng = new Random();
var size = prng.Next(10000);
var input = new byte[size];
prng.NextBytes(input);
Span <byte> firstOutput = stackalloc byte[16];
MetroHash128.Hash(0, input, firstOutput);
var metroHash = new MetroHash128(0);
metroHash.Update(input);
Span <byte> secondOutput = stackalloc byte[16];
metroHash.FinalizeHash(secondOutput);
Assert.True(firstOutput.SequenceEqual(secondOutput));
var thirdHash = OldMetroHash128.Hash(0, input, 0, input.Length);
Assert.True(firstOutput.SequenceEqual(thirdHash));
}
}
public void IncrementalSeed1SingleByteSpan()
{
var input = Encoding.ASCII.GetBytes(TestString);
var metroHash = new MetroHash128(1);
for (var i = 0; i < input.Length; i++)
{
metroHash.Update(input.AsSpan().Slice(i, 1));
}
var hash = metroHash.FinalizeHash();
var comparison = new byte[]
{
0x45, 0xA3, 0xCD, 0xB8, 0x38, 0x19, 0x9D, 0x7F,
0xBD, 0xD6, 0x8D, 0x86, 0x7A, 0x14, 0xEC, 0xEF
};
Assert.Equal(comparison, hash);
}
public byte[] MetroHash128NonIncremental()
{
return(MetroHash128.Hash(0, Data, 0, Data.Length));
}
public byte[] MetroHash128NonIncrementalSpan()
{
MetroHash128.Hash(0, Data, Buffer);
return(Buffer);
}
