flink-connectors/flink-connector-pulsar/src/test/java/org/apache/flink/connector/pulsar/source/enumerator/PulsarSourceEnumStateSerializerTest.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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package org.apache.flink.connector.pulsar.source.enumerator;

import org.apache.flink.connector.pulsar.source.enumerator.cursor.StopCursor;
import org.apache.flink.connector.pulsar.source.enumerator.topic.TopicPartition;
import org.apache.flink.connector.pulsar.source.enumerator.topic.TopicRange;
import org.apache.flink.connector.pulsar.source.split.PulsarPartitionSplit;

import org.apache.flink.shaded.guava30.com.google.common.collect.ImmutableMap;
import org.apache.flink.shaded.guava30.com.google.common.collect.Sets;

import org.junit.jupiter.api.Test;

import java.util.Collections;
import java.util.Map;
import java.util.Set;

import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
import static org.apache.flink.connector.pulsar.source.enumerator.PulsarSourceEnumStateSerializer.INSTANCE;
import static org.apache.flink.connector.pulsar.source.enumerator.topic.TopicRange.createFullRange;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotSame;

/** Unit tests for {@link PulsarSourceEnumStateSerializer}. */
class PulsarSourceEnumStateSerializerTest {

    @Test
    void serializeAndDeserializePulsarSourceEnumState() throws Exception {
        Set<TopicPartition> partitions =
                Sets.newHashSet(
                        new TopicPartition(randomAlphabetic(10), 2, new TopicRange(1, 30)),
                        new TopicPartition(randomAlphabetic(10), 1, createFullRange()));
        Set<PulsarPartitionSplit> splits =
                Collections.singleton(
                        new PulsarPartitionSplit(
                                new TopicPartition(randomAlphabetic(10), 10, createFullRange()),
                                StopCursor.defaultStopCursor()));
        Map<Integer, Set<PulsarPartitionSplit>> shared = Collections.singletonMap(5, splits);
        Map<Integer, Set<String>> mapping =
                ImmutableMap.of(
                        1, Sets.newHashSet(randomAlphabetic(10), randomAlphabetic(10)),
                        2, Sets.newHashSet(randomAlphabetic(10), randomAlphabetic(10)));

        PulsarSourceEnumState state =
                new PulsarSourceEnumState(partitions, splits, shared, mapping, true);

        byte[] bytes = INSTANCE.serialize(state);
        PulsarSourceEnumState state1 = INSTANCE.deserialize(INSTANCE.getVersion(), bytes);

        assertEquals(state.getAppendedPartitions(), state1.getAppendedPartitions());
        assertEquals(state.getPendingPartitionSplits(), state1.getPendingPartitionSplits());
        assertEquals(state.getReaderAssignedSplits(), state1.getReaderAssignedSplits());
        assertEquals(state.isInitialized(), state1.isInitialized());

        assertNotSame(state, state1);
    }
}