@SuppressWarnings("static-access")
 @Test
 public void isValidSiren_shouldReturnFalse() {
   // given
   Integer siren = 1;
   // when
   boolean result = entrepriseUtil.isValidSiren(siren);
   // then
   assertThat(result).isEqualTo(false);
 }
 @SuppressWarnings("static-access")
 @Test
 public void isValidSiren_shouldReturnTrue() {
   // given
   // siren de la poste
   Integer siren = 356000000;
   // when
   boolean result = entrepriseUtil.isValidSiren(siren);
   // then
   assertThat(result).isEqualTo(true);
 }