### Question:
LongUuid { @Override public String toString() { return Hexa.toHex(uuid); } LongUuid();  LongUuid(final byte[] bytes);  LongUuid(final long value);  LongUuid(final String idsource); @Override String toString(); byte[] getBytes(); int getProcessId(); long getTimestamp(); @Override boolean equals(final Object o); @Override int hashCode(); long getLong();  }### Answer:
@Test public void testStructure() { final LongUuid id = new LongUuid(); final String str = id.toString(); assertEquals(16, str.length()); }