public void testWriteString() {
ChannelBuffer buffer = ChannelBuffers.buffer(12);
ChannelBufferUtils.writeString(buffer, "hello");
assertEquals(5, buffer.readUnsignedShort());
assertEquals('h', buffer.readChar());
assertEquals('e', buffer.readChar());
assertEquals('l', buffer.readChar());
assertEquals('l', buffer.readChar());
assertEquals('o', buffer.readChar());
}