code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.oauth.flows.facebook;
  
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.Mockito.when;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.google.common.collect.ImmutableMap;
  import io.airbyte.commons.json.Jsons;
  import io.airbyte.config.SourceOAuthParameter;
  import io.airbyte.config.persistence.ConfigNotFoundException;
  import io.airbyte.config.persistence.ConfigRepository;
  import io.airbyte.oauth.OAuthFlowImplementation;
  import io.airbyte.oauth.flows.OAuthFlowIntegrationTest;
  import io.airbyte.validation.json.JsonValidationException;
  import java.io.IOException;
  import java.net.http.HttpClient;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.util.List;
  import java.util.Map;
  import java.util.UUID;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public class FacebookOAuthFlowIntegrationTest extends OAuthFlowIntegrationTest {
  
    protected static final Path CREDENTIALS_PATH = Path.of("secrets/facebook_marketing.json");
    protected static final String REDIRECT_URL = "http://localhost:9000/auth_flow";
  
    @Override
    protected Path getCredentialsPath() {
      return CREDENTIALS_PATH;
    }
  
    @Override
    protected OAuthFlowImplementation getFlowImplementation(final ConfigRepository configRepository, final HttpClient httpClient) {
      return new FacebookMarketingOAuthFlow(configRepository, httpClient);
    }
  
    @Override
    @BeforeEach
    public void setup() throws IOException {
      super.setup();
    }
  
    @Override
    protected int getServerListeningPort() {
      return 9000;
    }
  
    @Test
    public void testFullFacebookOAuthFlow() throws InterruptedException, ConfigNotFoundException, IOException, JsonValidationException {
      final UUID workspaceId = UUID.randomUUID();
      final UUID definitionId = UUID.randomUUID();
      final String fullConfigAsString = Files.readString(CREDENTIALS_PATH);
      final JsonNode credentialsJson = Jsons.deserialize(fullConfigAsString);
      when(configRepository.listSourceOAuthParam()).thenReturn(List.of(new SourceOAuthParameter()
          .withOauthParameterId(UUID.randomUUID())
          .withSourceDefinitionId(definitionId)
          .withWorkspaceId(workspaceId)
          .withConfiguration(Jsons.jsonNode(ImmutableMap.builder()
              .put("client_id", credentialsJson.get("client_id").asText())
              .put("client_secret", credentialsJson.get("client_secret").asText())
              .build()))));
      final String url = flow.getSourceConsentUrl(workspaceId, definitionId, REDIRECT_URL, Jsons.emptyObject(), null);
      LOGGER.info("Waiting for user consent at: {}", url);
      waitForResponse(20);
      assertTrue(serverHandler.isSucceeded(), "Failed to get User consent on time");
      final Map<String, Object> params = flow.completeSourceOAuth(workspaceId, definitionId,
          Map.of("code", serverHandler.getParamValue()), REDIRECT_URL);
      LOGGER.info("Response from completing OAuth Flow is: {}", params.toString());
      assertTrue(params.containsKey("access_token"));
      assertTrue(params.get("access_token").toString().length() > 0);
    }
  
  }
  