public void TestPutGetBitBuffer()
{
var b = new BitBuffer(new byte[1024]);
var r = new Random(0);
for (int i = 0; i < b.data.Length / 4; i++)
{
b.Put(r.Next());
}
for (int i = 0; i < 16; i++)
{
for (int length = 0; length < 32; length++)
{
for (int offset = 0; offset < 16; offset++)
{
var c = new BitBuffer(new byte[(int)Math.Ceiling((offset + length) / 8f)], offset);
c.Put(b.GetBitsAt(i, length));
c = c.FromStartToPosition();
CollectionAssert.AreEqual(b.GetBitsAt(i, length).ToArray(), c.ToArray(), "i=" + i + ", length=" + length + ", offset=" + offset);
Assert.IsTrue(b.GetBitsAt(i, length).BufferEquals(c), "i=" + i + ", length=" + length + ", offset=" + offset);
}
}
}
}
public void TestGetBytes()
{
for (int i = 0; i < 20; i++)
{
BitBuffer b = new BitBuffer(new byte[256], i);
Random r = new Random(0);
for (int j = 0; j < 15; j++)
{
int expected = r.Next();
b.Put(expected);
Assert.AreEqual(expected, b.GetIntAt(32 * j));
}
for (int k = 0; k < 20; k++)
{
byte[] clon = new byte[256];
b.GetBitsAt(0, clon, k, 700);
BitBuffer b2 = new BitBuffer(clon);
r = new Random(0);
for (int j = 0; j < 15; j++)
{
uint expected = ((uint)r.Next()) << k;
uint read = b2.GetUInt(32) & (~0u << k);
Assert.AreEqual(expected, read, "offset source=" + i + ", ofset destination=" + k + ", number=" + j);
}
}
}
}
public void TestBufferInequality()
{
var b = new BitBuffer(new byte[1024]);
var r = new Random(0);
for (int i = 0; i < b.data.Length / 4; i++)
{
b.Put(r.Next());
}
for (int offset = 0; offset < 16; offset++)
{
for (int i = 0; i < 16; i++)
{
for (int length = 0; length < 16; length++)
{
var c = new BitBuffer(new byte[(int)Math.Ceiling((offset + length) / 8f)], offset);
for (int p = 0; p < length; p++)
{
var b2 = c;
try {
var tmp = b.GetBitsAt(i, length);
b2.Put(tmp);
b2 = b2.FromStartToPosition();
b2.PutAt(p, !b2.GetBoolAt(p));
CollectionAssert.AreNotEqual(b.GetBitsAt(i, length).ToArray(), b2.ToArray());
Assert.IsFalse(b.GetBitsAt(i, length).BufferEquals(b2));
}
catch (Exception e) {
throw new Exception("i=" + i + ", length=" + length + ", p=" + p + ", offset=" + offset, e);
}
}
}
}
}
}
public void TestBitBufferPut2()
{
BitBuffer b = new BitBuffer(new byte[1200]);
b.Position = 132;
BitBuffer bToPut = new BitBuffer(new byte[1200]);
bToPut.Put((byte)0);
bToPut.Put((byte)1);
bToPut.Put((byte)0);
bToPut.Length = bToPut.absPosition;
CollectionAssert.AreEqual(new byte[3] {
0, 1, 0
}, bToPut.ToArray());
b.PutAt(132, bToPut);
CollectionAssert.AreEqual(new byte[3] {
0, 1, 0
}, b.GetBitsAt(132, 24).ToArray());
}
