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.extensions.sql.meta.provider.pubsub;
  
  import static junit.framework.TestCase.assertNotNull;
  import static org.apache.beam.sdk.extensions.sql.impl.utils.CalciteUtils.VARCHAR;
  import static org.junit.Assert.assertEquals;
  
  import org.apache.beam.sdk.extensions.sql.TableUtils;
  import org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable;
  import org.apache.beam.sdk.extensions.sql.meta.Table;
  import org.apache.beam.sdk.schemas.Schema;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.ExpectedException;
  
  /** Unit tests for {@link PubsubTableProvider}. */
  public class PubsubTableProviderTest {
  
    @Rule public ExpectedException thrown = ExpectedException.none();
  
    @Test
    public void testTableTypePubsub() {
      PubsubTableProvider provider = new PubsubTableProvider();
      assertEquals("pubsub", provider.getTableType());
    }
  
    @Test
    public void testCreatesTable() {
      PubsubTableProvider provider = new PubsubTableProvider();
      Schema messageSchema =
          Schema.builder()
              .addDateTimeField("event_timestamp")
              .addMapField("attributes", VARCHAR, VARCHAR)
              .addRowField("payload", Schema.builder().build())
              .build();
  
      Table tableDefinition = tableDefinition().schema(messageSchema).build();
  
      BeamSqlTable pubsubTable = provider.buildBeamSqlTable(tableDefinition);
  
      assertNotNull(pubsubTable);
      assertEquals(messageSchema, pubsubTable.getSchema());
    }
  
    @Test
    public void testThrowsIfTimestampFieldNotProvided() {
      PubsubTableProvider provider = new PubsubTableProvider();
      Schema messageSchema =
          Schema.builder()
              .addMapField("attributes", VARCHAR, VARCHAR)
              .addRowField("payload", Schema.builder().build())
              .build();
  
      Table tableDefinition = tableDefinition().schema(messageSchema).build();
  
      thrown.expectMessage("Unsupported");
      thrown.expectMessage("'event_timestamp'");
      provider.buildBeamSqlTable(tableDefinition);
    }
  
    @Test
    public void testCreatesTableWithJustTimestamp() {
      PubsubTableProvider provider = new PubsubTableProvider();
      Schema messageSchema = Schema.builder().addDateTimeField("event_timestamp").build();
  
      Table tableDefinition = tableDefinition().schema(messageSchema).build();
  
      BeamSqlTable pubsubTable = provider.buildBeamSqlTable(tableDefinition);
  
      assertNotNull(pubsubTable);
      assertEquals(messageSchema, pubsubTable.getSchema());
    }
  
    @Test
    public void testCreatesFlatTable() {
      PubsubTableProvider provider = new PubsubTableProvider();
      Schema messageSchema =
          Schema.builder().addDateTimeField("event_timestamp").addStringField("someField").build();
  
      Table tableDefinition = tableDefinition().schema(messageSchema).build();
  
      BeamSqlTable pubsubTable = provider.buildBeamSqlTable(tableDefinition);
  
      assertNotNull(pubsubTable);
      assertEquals(messageSchema, pubsubTable.getSchema());
    }
  
    private static Table.Builder tableDefinition() {
      return Table.builder()
          .name("FakeTable")
          .comment("fake table")
          .location("projects/project/topics/topic")
          .schema(Schema.builder().build())
          .type("pubsub")
          .properties(TableUtils.parseProperties("{ \"timestampAttributeKey\" : \"ts_field\" }"));
    }
  }
  