public void FillViaNext4BytesLeft()
{
var rng = new StepRng(0);
var buffer = new UInt32[17];
Filler.FillBytesViaNext(rng, MemoryMarshal.Cast <UInt32, Byte>(buffer));
for (UInt32 i = 0; i < buffer.Length / 2; i += 2)
{
Assert.Equal(i / 2, buffer[i]);
Assert.Equal(0u, buffer[i + 1]);
}
Assert.Equal(8u, buffer[16]);
}
public void FillViaNext2BytesLeft()
{
var rng = new StepRng(0);
var buffer = new UInt16[33];
Filler.FillBytesViaNext(rng, MemoryMarshal.Cast <UInt16, Byte>(buffer));
for (UInt32 i = 0; i < buffer.Length / 4; i += 4)
{
Assert.Equal(i / 4, buffer[i]);
Assert.Equal(0u, buffer[i + 1]);
Assert.Equal(0u, buffer[i + 2]);
Assert.Equal(0u, buffer[i + 3]);
}
Assert.Equal(8u, buffer[32]);
}
public void FillViaUInt64ChunksComplete()
{
var source = new UInt64[]
{
0x1111_1111_1111_1111, 0x2222_2222_2222_2222, 0x3333_3333_3333_3333,
0x4444_4444_4444_4444, 0x5555_5555_5555_5555, 0x6666_6666_6666_6666,
0x7777_7777_7777_7777, 0x8888_8888_8888_8888, 0x9999_9999_9999_9999,
};
var dest = new UInt64[7];
(Int32 consumed, Int32 filled) = Filler.FillViaUInt64(source, MemoryMarshal.Cast <UInt64, Byte>(dest));
Assert.Equal(7, consumed);
Assert.Equal(56, filled);
for (Int32 i = 0; i < 7; i++)
{
Assert.Equal(source[i], dest[i]);
}
}
public void FillViaUInt32ChunksCompletePartial()
{
var source = new UInt32[]
{
0x1111_1111, 0x2222_2222, 0x3333_3333,
0x4444_4444, 0x5555_5555, 0x6666_6666,
0x7777_7777, 0x8888_8888, 0x9999_9999,
};
var dest = new UInt16[13];
(Int32 consumed, Int32 filled) = Filler.FillViaUInt32Chunks(source, MemoryMarshal.Cast <UInt16, Byte>(dest));
Assert.Equal(7, consumed);
Assert.Equal(26, filled);
for (Int32 i = 0; i < 6; i += 2)
{
Assert.Equal(source[i / 2] & 0xFFFF, dest[i]);
Assert.Equal(source[i / 2] & 0xFFFF, dest[i + 1]);
}
}
public void FillViaUInt32ChunksIncomplete()
{
var source = new UInt32[]
{
0x1111_1111, 0x2222_2222, 0x3333_3333,
0x4444_4444, 0x5555_5555, 0x6666_6666,
0x7777_7777, 0x8888_8888, 0x9999_9999,
};
var dest = new UInt32[12];
(Int32 consumed, Int32 filled) = Filler.FillViaUInt32Chunks(source, MemoryMarshal.Cast <UInt32, Byte>(dest));
Assert.Equal(9, consumed);
Assert.Equal(36, filled);
for (Int32 i = 0; i < 9; i++)
{
Assert.Equal(source[i], dest[i]);
}
Assert.Equal(0u, dest[9]);
Assert.Equal(0u, dest[10]);
Assert.Equal(0u, dest[11]);
}
public void NextUInt32ViaUInt64(UInt64 initialRngState, UInt32 expected)
{
var rng = new StepRng(initialRngState);
Assert.Equal(expected, Filler.NextUInt32ViaUInt64(rng));
}