/*
 * 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.checkpoint;

import org.apache.flink.core.testutils.CommonTestUtils;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import org.junit.Test;

import java.io.NotSerializableException;
import java.util.HashMap;
import java.util.Map;

import static org.junit.Assert.assertEquals;

public class FailedCheckpointStatsTest {

	/**
	 * Tests that the end to end duration of a failed checkpoint is the duration
	 * until the failure.
	 */
	@Test
	public void testEndToEndDuration() throws Exception {
		long duration = 123912931293L;
		long triggerTimestamp = 10123;
		long failureTimestamp = triggerTimestamp + duration;

		Map<JobVertexID, TaskStateStats> taskStats = new HashMap<>();
		JobVertexID jobVertexId = new JobVertexID();
		taskStats.put(jobVertexId, new TaskStateStats(jobVertexId, 1));

		FailedCheckpointStats failed = new FailedCheckpointStats(
			0,
			triggerTimestamp,
			CheckpointProperties.forStandardCheckpoint(),
			1,
			taskStats,
			0,
			0,
			0,
			failureTimestamp,
			null,
			null);

		assertEquals(duration, failed.getEndToEndDuration());
	}

	@Test
	public void testIsJavaSerializable() throws Exception {
		long duration = 123912931293L;
		long triggerTimestamp = 10123;
		long failureTimestamp = triggerTimestamp + duration;

		Map<JobVertexID, TaskStateStats> taskStats = new HashMap<>();
		JobVertexID jobVertexId = new JobVertexID();
		taskStats.put(jobVertexId, new TaskStateStats(jobVertexId, 1));

		FailedCheckpointStats failed = new FailedCheckpointStats(
			123123123L,
			triggerTimestamp,
			CheckpointProperties.forStandardCheckpoint(),
			1337,
			taskStats,
			3,
			190890123,
			0,
			failureTimestamp,
			null,
			new NotSerializableException("message"));

		FailedCheckpointStats copy = CommonTestUtils.createCopySerializable(failed);

		assertEquals(failed.getCheckpointId(), copy.getCheckpointId());
		assertEquals(failed.getTriggerTimestamp(), copy.getTriggerTimestamp());
		assertEquals(failed.getProperties(), copy.getProperties());
		assertEquals(failed.getNumberOfSubtasks(), copy.getNumberOfSubtasks());
		assertEquals(failed.getNumberOfAcknowledgedSubtasks(), copy.getNumberOfAcknowledgedSubtasks());
		assertEquals(failed.getEndToEndDuration(), copy.getEndToEndDuration());
		assertEquals(failed.getStateSize(), copy.getStateSize());
		assertEquals(failed.getLatestAcknowledgedSubtaskStats(), copy.getLatestAcknowledgedSubtaskStats());
		assertEquals(failed.getStatus(), copy.getStatus());
		assertEquals(failed.getFailureMessage(), copy.getFailureMessage());
	}

}