import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertNotNull;

import com.google.cloud.WriteChannel;
import com.google.cloud.storage.Acl;
import com.google.cloud.storage.Blob;
import com.google.cloud.storage.BlobInfo;
import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.BucketInfo;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.Random;
import java.util.UUID;
import org.testng.annotations.Test;

public class GcsAclReproducerTest {

  @Test
  public void test() throws Exception {
    final String inputBucketName = UUID.randomUUID().toString();
    final String inputBlobName = UUID.randomUUID().toString();
    final Storage storageService = StorageOptions.getDefaultInstance().getService();
    final Bucket bucket = storageService.create(BucketInfo.newBuilder(inputBucketName).build());

    final Blob blob
        = storageService.create(BlobInfo.newBuilder(inputBucketName, inputBlobName).build());

    final List<Acl> acls1 = blob.listAcls();
    assertNotNull(acls1);
    assertFalse(acls1.isEmpty());

    try (final WriteChannel writer = blob.writer()) {
      final byte[] contents = new byte[1024 * 1024];
      new Random().nextBytes(contents);
      writer.write(ByteBuffer.wrap(contents));
    }

    final List<Acl> acls2 = blob.listAcls();
    assertNotNull(acls2);
    assertFalse(acls2.isEmpty());
  }
}