public void AffineHash_Hash_Distributes_Byte_Array()
{
Random random = AffineHashTests.Random();
AffineHash target = new AffineHash(random);
IEnumerable <byte[]> values = AffineHashTests.RandomByteArrays(random, 101, 10000);
AffineHashTests.AssertHashDistribution(target, values);
}
public void AffineHash_Hash_Distributes_UInt64()
{
Random random = AffineHashTests.Random();
AffineHash target = new AffineHash(random);
IEnumerable <ulong> values = AffineHashTests.RandomByteArrays(random, sizeof(ulong), 10000)
.Select(b => BitConverter.ToUInt64(b, 0));
AffineHashTests.AssertHashDistribution(target, values);
}
public void AffineHash_Hash_Distributes_Single()
{
Random random = AffineHashTests.Random();
AffineHash target = new AffineHash(random);
IEnumerable <float> values = AffineHashTests.RandomByteArrays(random, sizeof(float), 10000)
.Select(b => BitConverter.ToSingle(b, 0));
AffineHashTests.AssertHashDistribution(target, values);
}
public void AffineHash_Hash_Distributes_Guid()
{
Random random = AffineHashTests.Random();
AffineHash target = new AffineHash(random);
IEnumerable <Guid> values = AffineHashTests.RandomByteArrays(random, 16, 10000)
.Select(b => new Guid(b));
AffineHashTests.AssertHashDistribution(target, values);
}
public void AffineHash_Hash_Distributes_DateTimeOffset()
{
Random random = AffineHashTests.Random();
AffineHash target = new AffineHash(random);
IEnumerable <DateTimeOffset> values = AffineHashTests.RandomByteArrays(random, sizeof(ulong), 10000)
.Select(b => new DateTimeOffset((long)(BitConverter.ToUInt64(b, 0) % (ulong)DateTime.MaxValue.Ticks), TimeSpan.FromMinutes(random.Next(-840, 840))));
AffineHashTests.AssertHashDistribution(target, values);
}
/// <summary>
/// Generates random character arrays for test data.
/// </summary>
/// <param name="random">The random number generator to use.</param>
/// <param name="length">The length of each character array.</param>
/// <param name="count">The total number of character arrays to generate.</param>
/// <returns>A list of random character arrays.</returns>
private static IEnumerable <char[]> RandomCharArrays(Random random, int length, int count)
{
char[] buffer = new char[length];
foreach (byte[] bytes in AffineHashTests.RandomByteArrays(random, length * sizeof(char), count))
{
int o = 0;
for (int i = 0; i < buffer.Length; i++)
{
buffer[i] = BitConverter.ToChar(bytes, o);
o += sizeof(char);
}
yield return(buffer);
}
}
