code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.integrations.source.postgres;
  
  import static io.airbyte.integrations.source.postgres.PostgresUtils.MAX_FIRST_RECORD_WAIT_TIME;
  import static io.airbyte.integrations.source.postgres.PostgresUtils.MIN_FIRST_RECORD_WAIT_TIME;
  import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.node.ObjectNode;
  import com.google.common.collect.ImmutableMap;
  import io.airbyte.commons.json.Jsons;
  import java.time.Duration;
  import java.util.Collections;
  import java.util.Map;
  import java.util.Optional;
  import org.junit.jupiter.api.Test;
  
  class PostgresUtilsTest {
  
    @Test
    void testIsCdc() {
      final ObjectNode config = (ObjectNode) Jsons.jsonNode(ImmutableMap.builder().build());
      assertFalse(PostgresUtils.isCdc(config));
  
      config.set("replication_method", Jsons.jsonNode(ImmutableMap.of(
          "replication_slot", "slot",
          "publication", "ab_pub")));
      assertTrue(PostgresUtils.isCdc(config));
    }
  
    @Test
    void testGetFirstRecordWaitTime() {
      final JsonNode emptyConfig = Jsons.jsonNode(Collections.emptyMap());
      assertDoesNotThrow(() -> PostgresUtils.checkFirstRecordWaitTime(emptyConfig));
      assertEquals(Optional.empty(), PostgresUtils.getFirstRecordWaitSeconds(emptyConfig));
      assertEquals(PostgresUtils.DEFAULT_FIRST_RECORD_WAIT_TIME, PostgresUtils.getFirstRecordWaitTime(emptyConfig));
  
      final JsonNode normalConfig = Jsons.jsonNode(Map.of("replication_method",
          Map.of("method", "CDC", "initial_waiting_seconds", 500)));
      assertDoesNotThrow(() -> PostgresUtils.checkFirstRecordWaitTime(normalConfig));
      assertEquals(Optional.of(500), PostgresUtils.getFirstRecordWaitSeconds(normalConfig));
      assertEquals(Duration.ofSeconds(500), PostgresUtils.getFirstRecordWaitTime(normalConfig));
  
      final int tooShortTimeout = (int) MIN_FIRST_RECORD_WAIT_TIME.getSeconds() - 1;
      final JsonNode tooShortConfig = Jsons.jsonNode(Map.of("replication_method",
          Map.of("method", "CDC", "initial_waiting_seconds", tooShortTimeout)));
      assertThrows(IllegalArgumentException.class, () -> PostgresUtils.checkFirstRecordWaitTime(tooShortConfig));
      assertEquals(Optional.of(tooShortTimeout), PostgresUtils.getFirstRecordWaitSeconds(tooShortConfig));
      assertEquals(MIN_FIRST_RECORD_WAIT_TIME, PostgresUtils.getFirstRecordWaitTime(tooShortConfig));
  
      final int tooLongTimeout = (int) MAX_FIRST_RECORD_WAIT_TIME.getSeconds() + 1;
      final JsonNode tooLongConfig = Jsons.jsonNode(Map.of("replication_method",
          Map.of("method", "CDC", "initial_waiting_seconds", tooLongTimeout)));
      assertThrows(IllegalArgumentException.class, () -> PostgresUtils.checkFirstRecordWaitTime(tooLongConfig));
      assertEquals(Optional.of(tooLongTimeout), PostgresUtils.getFirstRecordWaitSeconds(tooLongConfig));
      assertEquals(MAX_FIRST_RECORD_WAIT_TIME, PostgresUtils.getFirstRecordWaitTime(tooLongConfig));
    }
  
  }
  