content: /*
   * Copyright 2024 Copyright 2022 Aiven Oy and
   * bigquery-connector-for-apache-kafka project contributors
   *
   * This software contains code derived from the Confluent BigQuery
   * Kafka Connector, Copyright Confluent, Inc, which in turn
   * contains code derived from the WePay BigQuery Kafka Connector,
   * Copyright WePay, Inc.
   *
   * Licensed 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 com.wepay.kafka.connect.bigquery.config;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  import com.wepay.kafka.connect.bigquery.GcpClientBuilder;
  import java.util.Optional;
  import org.junit.jupiter.api.Test;
  
  public class CredentialsValidatorTest {
  
    @Test
    public void testNoCredentialsSkipsValidation() {
      BigQuerySinkConfig config = mock(BigQuerySinkConfig.class);
      when(config.getKey()).thenReturn(null);
  
      assertEquals(
          Optional.empty(),
          new CredentialsValidator.BigQueryCredentialsValidator().doValidate(config)
      );
      assertEquals(
          Optional.empty(),
          new CredentialsValidator.GcsCredentialsValidator().doValidate(config)
      );
      assertEquals(
          Optional.empty(),
          new CredentialsValidator.BigQueryStorageWriteApiCredentialsValidator().doValidate(config)
      );
    }
  
    @Test
    public void testFailureToConstructClient() {
      BigQuerySinkConfig config = mock(BigQuerySinkConfig.class);
      when(config.getKey()).thenReturn("key");
  
      @SuppressWarnings("unchecked")
      GcpClientBuilder<Object> mockClientBuilder = mock(GcpClientBuilder.class);
      when(mockClientBuilder.withConfig(eq(config))).thenReturn(mockClientBuilder);
      when(mockClientBuilder.build()).thenThrow(new RuntimeException("Provided credentials are invalid"));
  
      assertNotEquals(
          Optional.empty(),
          new CredentialsValidator.BigQueryCredentialsValidator().doValidate(config)
      );
      assertNotEquals(
          Optional.empty(),
          new CredentialsValidator.GcsCredentialsValidator().doValidate(config)
      );
      assertNotEquals(
          Optional.empty(),
          new CredentialsValidator.BigQueryStorageWriteApiCredentialsValidator().doValidate(config)
      );
    }
  
    @Test
    public void testKeyShouldNotBeProvidedIfUsingApplicationDefaultCredentials() {
      BigQuerySinkConfig config = mock(BigQuerySinkConfig.class);
      when(config.getKey()).thenReturn("key");
      when(config.getKeySource()).thenReturn(GcpClientBuilder.KeySource.APPLICATION_DEFAULT);
  
      assertTrue(
          new CredentialsValidator.BigQueryCredentialsValidator().doValidate(config)
              .get().contains("should not be provided")
      );
      assertTrue(
          new CredentialsValidator.BigQueryStorageWriteApiCredentialsValidator().doValidate(config)
              .get().contains("should not be provided")
      );
    }
  }
  