content: /*
   * Copyright © 2018-2025 Commonwealth Scientific and Industrial Research
   * Organisation (CSIRO) ABN 41 687 119 230.
   *
   * 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 au.csiro.pathling.test;
  
  import static org.junit.jupiter.api.Assertions.assertInstanceOf;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.apache.spark.sql.types.DataType;
  import org.apache.spark.sql.types.StructType;
  
  public interface SchemaAsserts {
  
    static void assertFieldNotPresent(final String fieldName,
        final DataType maybeStructType) {
      assertInstanceOf(StructType.class, maybeStructType, "Must be struct type.");
      assertTrue(((StructType) maybeStructType).getFieldIndex(fieldName).isEmpty(),
          "Field: '" + fieldName + "' not present in struct type.");
    }
  
    static void assertFieldPresent(final String fieldName,
        final DataType maybeStructType) {
      assertInstanceOf(StructType.class, maybeStructType, "Must be struct type.");
      assertTrue(((StructType) maybeStructType).getFieldIndex(fieldName).isDefined(),
          "Field: '" + fieldName + "' not present in struct type.");
    }
  
  }
  