public void HeadTailIndicesStructCreationPackkedValueTest(ushort head, ushort tail)
{
var data = new ByteArrayPool.HeadTailIndicesStruct((int)(((uint)head << 16) | tail));
Assert.Equal(head, data.Head);
Assert.Equal(tail, data.Tail);
Assert.Equal((int)(((uint)head << 16) | tail), data.Pack());
}
public void HeadTailIndicesStructUpdateTest(ushort head, ushort tail, int poolSize)
{
var data = new ByteArrayPool.HeadTailIndicesStruct(head, tail);
Assert.Equal((tail - head + poolSize) % poolSize, data.ElementCount(poolSize));
Assert.Equal(data.ElementCount(poolSize) > ByteArrayPool.GapSize, data.HasAvailableElements(poolSize));
Assert.Equal(head, data.MoveHeadForward(poolSize));
Assert.Equal(head + 1, data.Head);
while (data.HasAvailableElements(poolSize))
{
data.MoveHeadForward(poolSize);
}
Assert.True(data.ElementCount(poolSize) <= ByteArrayPool.GapSize);
while (!data.HasAvailableElements(poolSize))
{
data.MoveTailForward(poolSize);
}
data.MoveHeadForward(poolSize);
Assert.Equal((data.Tail - data.Head + poolSize) % poolSize, ByteArrayPool.GapSize);
Assert.Equal(ByteArrayPool.GapSize, data.ElementCount(poolSize));
Assert.True(data.HasFreeSpace(poolSize));
int count = ByteArrayPool.GapSize;
while (data.HasFreeSpace(poolSize))
{
data.MoveTailForward(poolSize);
count++;
Assert.Equal(count, data.ElementCount(poolSize));
}
Assert.True(data.HasAvailableElements(poolSize));
Assert.Equal(count, data.ElementCount(poolSize));
}