/*
 * 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.fluss.flink.sink.shuffle;

import org.junit.jupiter.api.Test;

import static org.apache.fluss.flink.sink.shuffle.StatisticsUtil.createDataStatistics;
import static org.apache.fluss.flink.sink.shuffle.StatisticsUtil.deserializeDataStatistics;
import static org.apache.fluss.flink.sink.shuffle.StatisticsUtil.serializeDataStatistics;
import static org.assertj.core.api.Assertions.assertThat;

/**
 * Test for {@link DataStatisticsSerializer} to serialize and deserialize {@link DataStatistics}.
 */
class DataStatisticsSerializerTest {

    @Test
    void testSerializeAndDeserialize() {
        DataStatisticsSerializer serializer = new DataStatisticsSerializer();
        DataStatistics dataStatistics = createDataStatistics();
        assertThat(
                        deserializeDataStatistics(
                                        serializeDataStatistics(dataStatistics, serializer),
                                        serializer)
                                .isEmpty())
                .isTrue();

        dataStatistics.add("p1", 1);
        dataStatistics.add("p2", 2);
        dataStatistics.add("p1", 3);
        assertThat(
                        deserializeDataStatistics(
                                        serializeDataStatistics(dataStatistics, serializer),
                                        serializer)
                                .result())
                .isEqualTo(dataStatistics.result());
    }
}
