public void TestRemove_End()
{
NcByteCollection instance = new NcByteCollection();
byte[] data = NcTestUtils.RandomBytes(12 * 1024);
instance.AddRange(data);
instance.RemoveRange(7 * 1024, 5 * 1024);
Assert.IsTrue(instance.SequenceEqual(data.Take(7 * 1024)));
}
public void TestRemove_Small()
{
NcByteCollection instance = new NcByteCollection();
byte[] data = NcTestUtils.RandomBytes(100);
instance.AddRange(data);
instance.RemoveRange(10, 50);
Assert.IsTrue(instance.SequenceEqual(data.Take(10).Concat(data.Skip(10 + 50))));
}
public void TestRemove_Medium()
{
NcByteCollection instance = new NcByteCollection();
byte[] data = NcTestUtils.RandomBytes(5 * 1024);
instance.AddRange(data);
instance.RemoveRange(3 * 1024, 1536);
Assert.IsTrue(instance.SequenceEqual(data.Take(3 * 1024).Concat(data.Skip(3 * 1024 + 1536))));
}
public void TestCompact()
{
NcByteCollection data = new NcByteCollection(NcTestUtils.RandomBytes(12 * 1024));
data.RemoveRange(3 * 1024, 100);
data.InsertRange(2 * 1024, NcTestUtils.RandomBytes(200));
data.RemoveRange(5 * 1024, 5 * 1024);
data.InsertRange(6 * 1024, NcTestUtils.RandomBytes(5 * 1024));
data.RemoveRange(7 * 1024, 3 * 1024);
#if DEBUG
long oldBytes = data.BlockLengthTotal;
Console.WriteLine("Used bytes: {0}, Total bytes: {1}, Blocks: {2}", data.LongCount, data.BlockLengthTotal, data.BlockCount);
#endif
byte[] snapshot = data.ToArray();
data.Compact();
#if DEBUG
Console.WriteLine("Used bytes: {0}, Total bytes: {1}, Blocks: {2}", data.LongCount, data.BlockLengthTotal, data.BlockCount);
#endif
byte[] compacted = data.ToArray();
Assert.IsTrue(snapshot.SequenceEqual(compacted));
#if DEBUG
Assert.AreNotEqual(oldBytes, data.BlockLengthTotal);
#endif
}
/// <summary>
/// Changes the length of the stream.
/// </summary>
/// <param name="value"></param>
/// <remarks>
/// If <paramref name="value"/> is less than the current length of the
/// stream, the data is truncated; otherwise, additional (undefined)
/// elements are added to the end of the collection.
/// </remarks>
public override void SetLength(long value)
{
lock (syncLock) {
long diff = _data.LongCount - value;
if (diff > 0)
{
// truncate end
_data.RemoveRange(value, diff);
}
else if (diff < 0)
{
// pad end
_data.Grow(-diff);
}
}
}
