code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.integrations.source.bigquery;
  
  import static io.airbyte.integrations.source.bigquery.BigQuerySource.CONFIG_CREDS;
  import static io.airbyte.integrations.source.bigquery.BigQuerySource.CONFIG_DATASET_ID;
  import static io.airbyte.integrations.source.bigquery.BigQuerySource.CONFIG_PROJECT_ID;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.google.cloud.bigquery.Dataset;
  import com.google.cloud.bigquery.DatasetInfo;
  import com.google.common.collect.ImmutableMap;
  import io.airbyte.commons.json.Jsons;
  import io.airbyte.commons.string.Strings;
  import io.airbyte.db.bigquery.BigQueryDatabase;
  import io.airbyte.protocol.models.ConfiguredAirbyteCatalog;
  import java.io.IOException;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.sql.SQLException;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  
  abstract class AbstractBigQuerySourceTest {
  
    private static final Path CREDENTIALS_PATH = Path.of("secrets/credentials.json");
  
    protected BigQueryDatabase database;
    protected Dataset dataset;
    protected JsonNode config;
  
    @BeforeEach
    void setUp() throws IOException, SQLException {
      if (!Files.exists(CREDENTIALS_PATH)) {
        throw new IllegalStateException(
            "Must provide path to a big query credentials file. By default {module-root}/" + CREDENTIALS_PATH
                + ". Override by setting setting path with the CREDENTIALS_PATH constant.");
      }
  
      final String credentialsJsonString = Files.readString(CREDENTIALS_PATH);
  
      final JsonNode credentialsJson = Jsons.deserialize(credentialsJsonString);
      final String projectId = credentialsJson.get(CONFIG_PROJECT_ID).asText();
      final String datasetLocation = "US";
  
      final String datasetId = Strings.addRandomSuffix("airbyte_tests", "_", 8);
  
      config = Jsons.jsonNode(ImmutableMap.builder()
          .put(CONFIG_PROJECT_ID, projectId)
          .put(CONFIG_CREDS, credentialsJsonString)
          .put(CONFIG_DATASET_ID, datasetId)
          .build());
  
      database = new BigQueryDatabase(config.get(CONFIG_PROJECT_ID).asText(), credentialsJsonString);
  
      final DatasetInfo datasetInfo =
          DatasetInfo.newBuilder(config.get(CONFIG_DATASET_ID).asText()).setLocation(datasetLocation).build();
      dataset = database.getBigQuery().create(datasetInfo);
  
      createTable(datasetId);
    }
  
    @AfterEach
    void tearDown() {
      database.cleanDataSet(dataset.getDatasetId().getDataset());
    }
  
    protected abstract void createTable(String datasetId) throws SQLException;
  
    protected abstract ConfiguredAirbyteCatalog getConfiguredCatalog();
  
  }
  