package lsr.paxos.messages;
import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import org.junit.Before;
import org.junit.Test;
public class PrepareTest extends AbstractMessageTestCase<Prepare> {
private int view = 12;
private int firstUncommitted = 32;
private Prepare prepare;
@Before
public void setUp() {
prepare = new Prepare(view, firstUncommitted);
}
@Test
public void shouldInitializeFields() {
assertEquals(view, prepare.getView());
assertEquals(firstUncommitted, prepare.getFirstUncommitted());
}
@Test
public void shouldSerializeAndDeserialize() throws IOException {
verifySerialization(prepare);
byte[] bytes = prepare.toByteArray();
assertEquals(bytes.length, prepare.byteSize());
ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
DataInputStream dis = new DataInputStream(bis);
MessageType type = MessageType.values()[dis.readByte()];
Prepare deserializedPrepare = new Prepare(dis);
assertEquals(MessageType.Prepare, type);
compare(prepare, deserializedPrepare);
assertEquals(0, dis.available());
}
@Test
public void shouldReturnCorrectMessageType() {
assertEquals(MessageType.Prepare, prepare.getType());
}
protected void compare(Prepare expected, Prepare actual) {
assertEquals(expected.getView(), actual.getView());
assertEquals(expected.getSentTime(), actual.getSentTime());
assertEquals(expected.getType(), actual.getType());
assertEquals(expected.getFirstUncommitted(), actual.getFirstUncommitted());
}
}