@Test
public void testToPretty() throws Exception {
assertEquals("", IBAN.toPretty(""));
assertEquals("12", IBAN.toPretty("12"));
assertEquals("12", IBAN.toPretty("1 2"));
assertEquals("1234", IBAN.toPretty("1234"));
assertEquals("1234", IBAN.toPretty("1 2 3 4"));
assertEquals("1234 5", IBAN.toPretty("12345"));
assertEquals("1234 5", IBAN.toPretty("1234 5"));
assertEquals("1234 5678", IBAN.toPretty("12345678"));
assertEquals("1234 5678", IBAN.toPretty("1234 5678"));
assertEquals("1234 5678 9", IBAN.toPretty("123456789"));
assertEquals("1234 5678 9", IBAN.toPretty("1234 5678 9"));
}
