static com.google.cloud.datacatalog.v1beta1.Schema toDataCatalog(Schema schema) {
    com.google.cloud.datacatalog.v1beta1.Schema.Builder schemaBuilder =
        com.google.cloud.datacatalog.v1beta1.Schema.newBuilder();
    for (Schema.Field field : schema.getFields()) {
      schemaBuilder.addColumns(fromBeamField(field));
    }
    return schemaBuilder.build();
  }
@Test
  public void testToDataCatalog() {
    assertEquals(TEST_DC_SCHEMA, SchemaUtils.toDataCatalog(TEST_SCHEMA));
  }