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.sdk.schemas.transforms.providers;
  
  import java.util.List;
  import org.apache.beam.sdk.schemas.Schema;
  import org.apache.beam.sdk.testing.NeedsRunner;
  import org.apache.beam.sdk.testing.PAssert;
  import org.apache.beam.sdk.testing.TestPipeline;
  import org.apache.beam.sdk.transforms.Create;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.PCollectionRowTuple;
  import org.apache.beam.sdk.values.Row;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  
  public class JavaExplodeTransformProviderTest {
    @Rule public TestPipeline pipeline = TestPipeline.create();
  
    private static final Schema INPUT_SCHEMA =
        Schema.of(
            Schema.Field.of("a", Schema.FieldType.iterable(Schema.FieldType.INT32)),
            Schema.Field.of("b", Schema.FieldType.DOUBLE),
            Schema.Field.of("c", Schema.FieldType.array(Schema.FieldType.STRING)));
  
    private static final Schema OUTPUT_SCHEMA =
        Schema.of(
            Schema.Field.of("a", Schema.FieldType.INT32),
            Schema.Field.of("b", Schema.FieldType.DOUBLE),
            Schema.Field.of("c", Schema.FieldType.STRING));
  
    private static final List<Row> INPUT_ROWS =
        ImmutableList.of(
            Row.withSchema(INPUT_SCHEMA)
                .addValues(ImmutableList.of(1, 2), 1.5, ImmutableList.of("x", "y"))
                .build());
  
    @Test
    @Category(NeedsRunner.class)
    public void testCrossProduct() {
      PCollection<Row> input = pipeline.apply(Create.of(INPUT_ROWS)).setRowSchema(INPUT_SCHEMA);
  
      PCollection<Row> exploded =
          PCollectionRowTuple.of(JavaExplodeTransformProvider.INPUT_ROWS_TAG, input)
              .apply(
                  new JavaExplodeTransformProvider()
                      .from(
                          JavaExplodeTransformProvider.Configuration.builder()
                              .setFields(ImmutableList.of("a", "c"))
                              .setCrossProduct(true)
                              .build()))
              .get(JavaExplodeTransformProvider.OUTPUT_ROWS_TAG);
  
      PAssert.that(exploded)
          .containsInAnyOrder(
              Row.withSchema(OUTPUT_SCHEMA).addValues(1, 1.5, "x").build(),
              Row.withSchema(OUTPUT_SCHEMA).addValues(2, 1.5, "x").build(),
              Row.withSchema(OUTPUT_SCHEMA).addValues(1, 1.5, "y").build(),
              Row.withSchema(OUTPUT_SCHEMA).addValues(2, 1.5, "y").build());
  
      pipeline.run();
    }
  
    @Test
    @Category(NeedsRunner.class)
    public void testZipProduct() {
      PCollection<Row> input = pipeline.apply(Create.of(INPUT_ROWS)).setRowSchema(INPUT_SCHEMA);
  
      PCollection<Row> exploded =
          PCollectionRowTuple.of(JavaExplodeTransformProvider.INPUT_ROWS_TAG, input)
              .apply(
                  new JavaExplodeTransformProvider()
                      .from(
                          JavaExplodeTransformProvider.Configuration.builder()
                              .setFields(ImmutableList.of("a", "c"))
                              .setCrossProduct(false)
                              .build()))
              .get(JavaExplodeTransformProvider.OUTPUT_ROWS_TAG);
  
      PAssert.that(exploded)
          .containsInAnyOrder(
              Row.withSchema(OUTPUT_SCHEMA).addValues(1, 1.5, "x").build(),
              Row.withSchema(OUTPUT_SCHEMA).addValues(2, 1.5, "y").build());
  
      pipeline.run();
    }
  }
  