package co.nstant.in.cbor.examples;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.List;

import org.junit.Assert;
import org.junit.Test;

import co.nstant.in.cbor.CborBuilder;
import co.nstant.in.cbor.CborDecoder;
import co.nstant.in.cbor.CborEncoder;
import co.nstant.in.cbor.CborException;
import co.nstant.in.cbor.model.ByteString;
import co.nstant.in.cbor.model.DataItem;

/**
 * 23(h'01020304') -> 0xd74401020304
 */
public class Example51Test {

	private final List<DataItem> VALUE;

	private final byte[] ENCODED_VALUE = new byte[] { (byte) 0xd7, 0x44,
			0x01, 0x02, 0x03, 0x04 };

	public Example51Test() {
		DataItem di = new ByteString(new byte[] { 0x01, 0x02, 0x03, 0x04 });
		di.setTag(23);

		VALUE = new CborBuilder().add(di).build();
	}

	@Test
	public void shouldEncode() throws CborException {
		ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
		CborEncoder encoder = new CborEncoder(byteOutputStream);
		encoder.encode(VALUE);
		Assert.assertArrayEquals(ENCODED_VALUE, byteOutputStream.toByteArray());
	}

	@Test
	public void shouldDecode() throws CborException {
		InputStream inputStream = new ByteArrayInputStream(ENCODED_VALUE);
		CborDecoder decoder = new CborDecoder(inputStream);
		List<DataItem> dataItems = decoder.decode();
		Assert.assertArrayEquals(VALUE.toArray(), dataItems.toArray());

	}

}