content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.beam.it.truthmatchers;
  
  import static com.google.common.truth.Truth.assertAbout;
  
  import com.google.gson.Gson;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  import org.apache.beam.it.common.PipelineLauncher.LaunchInfo;
  import org.apache.beam.it.common.PipelineOperator.Result;
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  /** Assert utilities for Template DSL-like tests. */
  public class PipelineAsserts {
  
    /**
     * Creates a {@link LaunchInfoSubject} to assert information returned from pipeline launches.
     *
     * @param launchInfo Launch information returned from the launcher.
     * @return Truth Subject to chain assertions.
     */
    public static LaunchInfoSubject assertThatPipeline(LaunchInfo launchInfo) {
      return assertAbout(LaunchInfoSubject.launchInfo()).that(launchInfo);
    }
  
    /**
     * Creates a {@link ResultSubject} to add assertions based on a pipeline result.
     *
     * @param result Pipeline result returned from the launcher.
     * @return Truth Subject to chain assertions.
     */
    public static ResultSubject assertThatResult(Result result) {
      return assertAbout(ResultSubject.result()).that(result);
    }
  
    /**
     * Creates a {@link RecordsSubject} to assert information within a list of records.
     *
     * @param records Records in a map list format to use in the comparison.
     * @return Truth Subject to chain assertions.
     */
    public static RecordsSubject assertThatRecords(@Nullable List<Map<String, Object>> records) {
      return assertAbout(RecordsSubject.records()).that(records);
    }
  
    /**
     * Convert JSON Strings to a list of maps.
     *
     * @param jsonRecords List of JSON Strings to parse
     * @return List of maps to use in {@link RecordsSubject}
     */
    public static List<Map<String, Object>> jsonRecordsToRecords(
        @Nullable Iterable<String> jsonRecords) {
      try {
        List<Map<String, Object>> records = new ArrayList<>();
        if (jsonRecords != null) {
          jsonRecords.forEach(
              json -> records.add(new Gson().<Map<String, Object>>fromJson(json, Map.class)));
        }
  
        return records;
      } catch (Exception e) {
        throw new RuntimeException("Error converting JSON Records to Records", e);
      }
    }
  
    /**
     * Creates a {@link RecordsSubject} to assert information within a list of JSON Strings.
     *
     * @param jsonRecords Strings in JSON format to use in the comparison.
     * @return Truth Subject to chain assertions.
     */
    public static RecordsSubject assertThatJsonRecords(@Nullable List<String> jsonRecords) {
      return assertThatRecords(jsonRecordsToRecords(jsonRecords));
    }
  }
  