### Question:
CardHolder implements Cloneable, Serializable, Loggeable { public boolean hasTrack2() { return pan != null && exp != null && trailer != null; } CardHolder();  CardHolder(String track2);  CardHolder(String pan, String exp);  CardHolder(ISOMsg m); void parseTrack2(String s); void setTrack1(String track1); String getTrack1(); boolean hasTrack1(); String getNameOnCard(); String getTrack2(); boolean hasTrack2(); void setSecurityCode(String securityCode); String getSecurityCode(); boolean hasSecurityCode(); @SuppressWarnings("unused") String getTrailler(); @SuppressWarnings("unused") void setTrailler(String trailer); String getTrailer(); void setTrailer(String trailer); void setPAN(String pan); String getPAN(); String getBIN(); void setEXP(String exp); String getEXP(); boolean isExpired(); boolean isExpired(Date currentDate); boolean isValidCRC(); static boolean isValidCRC(String p); void dump(PrintStream p, String indent); String getServiceCode(); boolean seemsManualEntry(); @Override int hashCode(); @Override boolean equals(Object obj);  }### Answer:
@Test public void testConstructor() throws Throwable { CardHolder cardHolder = new CardHolder(); assertFalse(cardHolder.hasTrack2(), "cardHolder.hasTrack2()"); }
@Test public void testHasTrack2() throws Throwable { boolean result = new CardHolder("k'X9|DH:!;uQ<kG8!P?- ,\"Y!u`r;jB^)>3AbS9,").hasTrack2(); assertTrue(result, "result"); }
@Test public void testHasTrack23() throws Throwable { boolean result = new CardHolder().hasTrack2(); assertFalse(result, "result"); }