@Test
public void shouldReturnReadOnlyDerivedBuffer() {
ChannelBuffer buf = ChannelBuffers.unmodifiableBuffer(ChannelBuffers.buffer(1));
assertTrue(buf.duplicate() instanceof ReadOnlyChannelBuffer);
assertTrue(buf.slice() instanceof ReadOnlyChannelBuffer);
assertTrue(buf.slice(0, 1) instanceof ReadOnlyChannelBuffer);
assertTrue(buf.duplicate() instanceof ReadOnlyChannelBuffer);
}