/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.runtime.io.network.api;

import org.apache.flink.runtime.checkpoint.CheckpointOptions;
import org.apache.flink.runtime.util.DataInputDeserializer;
import org.apache.flink.runtime.util.DataOutputSerializer;

import org.junit.Test;

import static org.junit.Assert.fail;

public class CheckpointBarrierTest {

	/**
	 * Test serialization of the checkpoint barrier.
	 * The checkpoint barrier does not support its own serialization, in order to be immutable.
	 */
	@Test
	public void testSerialization() throws Exception {
		long id = Integer.MAX_VALUE + 123123L;
		long timestamp = Integer.MAX_VALUE + 1228L;

		CheckpointOptions options = CheckpointOptions.forFullCheckpoint();
		CheckpointBarrier barrier = new CheckpointBarrier(id, timestamp, options);

		try {
			barrier.write(new DataOutputSerializer(1024));
			fail("should throw an exception");
		} catch (UnsupportedOperationException e) {
			// expected
		}

		try {
			barrier.read(new DataInputDeserializer(new byte[32]));
			fail("should throw an exception");
		} catch (UnsupportedOperationException e) {
			// expected
		}
	}
}