text: package de.metas.payment.esr;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import org.junit.jupiter.api.Test;
  
  /*
   * #%L
   * de.metas.payment.esr
   * %%
   * Copyright (C) 2018 metas GmbH
   * %%
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as
   * published by the Free Software Foundation, either version 2 of the
   * License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public
   * License along with this program. If not, see
   * <http://www.gnu.org/licenses/gpl-2.0.html>.
   * #L%
   */
  
  public class ESRStringUtilTest
  {
  
  	@Test
  	public void formatReferenceNumber()
  	{
  		assertThat(ESRStringUtil.formatReferenceNumber("123456200001888888888888885")).isEqualTo("12 34562 00001 88888 88888 88885");
  		assertThat(ESRStringUtil.formatReferenceNumber("12 34562 00001 88888 88888 88885")).isEqualTo("12 34562 00001 88888 88888 88885");
  	}
  
  }
  