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.runners.dataflow.worker.util;
  
  import static org.apache.beam.runners.dataflow.util.Structs.addString;
  import static org.apache.beam.runners.dataflow.util.Structs.getString;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  
  import com.google.api.services.dataflow.model.Source;
  import java.util.ArrayList;
  import java.util.Map;
  import org.apache.beam.runners.dataflow.util.CloudObject;
  import org.apache.beam.runners.dataflow.util.CloudObjects;
  import org.apache.beam.runners.dataflow.util.PropertyNames;
  import org.apache.beam.sdk.coders.StringUtf8Coder;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Tests for {@code CloudSourceUtils}. */
  @RunWith(JUnit4.class)
  public class CloudSourceUtilsTest {
    @Test
    public void testFlattenBaseSpecs() throws Exception {
      // G = grandparent, P = parent, C = child.
      CloudObject grandparent = CloudObject.forClassName("text");
      addString(grandparent, "G", "g_g");
      addString(grandparent, "GP", "gp_g");
      addString(grandparent, "GC", "gc_g");
      addString(grandparent, "GPC", "gpc_g");
  
      CloudObject parent = CloudObject.forClassName("text");
      addString(parent, "P", "p_p");
      addString(parent, "PC", "pc_p");
      addString(parent, "GP", "gp_p");
      addString(parent, "GPC", "gpc_p");
  
      CloudObject child = CloudObject.forClassName("text");
      addString(child, "C", "c_c");
      addString(child, "PC", "pc_c");
      addString(child, "GC", "gc_c");
      addString(child, "GPC", "gpc_c");
  
      Source source = new Source();
      source.setBaseSpecs(new ArrayList<Map<String, Object>>());
      source.getBaseSpecs().add(grandparent);
      source.getBaseSpecs().add(parent);
      source.setSpec(child);
      source.setCodec(CloudObjects.asCloudObject(StringUtf8Coder.of(), /*sdkComponents=*/ null));
  
      Source flat = CloudSourceUtils.flattenBaseSpecs(source);
      assertNull(flat.getBaseSpecs());
      assertEquals(
          StringUtf8Coder.class.getName(),
          getString(flat.getCodec(), PropertyNames.OBJECT_TYPE_NAME));
  
      CloudObject flatSpec = CloudObject.fromSpec(flat.getSpec());
      assertEquals("g_g", getString(flatSpec, "G"));
      assertEquals("p_p", getString(flatSpec, "P"));
      assertEquals("c_c", getString(flatSpec, "C"));
      assertEquals("gp_p", getString(flatSpec, "GP"));
      assertEquals("gc_c", getString(flatSpec, "GC"));
      assertEquals("pc_c", getString(flatSpec, "PC"));
      assertEquals("gpc_c", getString(flatSpec, "GPC"));
    }
  }
  