### Question:
CardHolder implements Cloneable, Serializable, Loggeable { public void setPAN (String pan) throws InvalidCardException { if (pan.length() < MINPANLEN) throw new InvalidCardException ("PAN length smaller than min required"); this.pan = pan; } 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 testSetPAN() throws Throwable { CardHolder cardHolder = new CardHolder(); cardHolder.setPAN("10Characte"); assertEquals("10Characte", cardHolder.pan, "cardHolder.pan"); }
@Test public void testSetPAN1() throws Throwable { CardHolder cardHolder = new CardHolder("k'X9|DH:!;uQ<kG8!P?- ,\"Y!u`r;jB^)>3AbS9,"); cardHolder.setPAN("11Character"); assertEquals("11Character", cardHolder.pan, "cardHolder.pan"); }
@Test public void testSetPANThrowsInvalidCardException() throws Throwable { CardHolder cardHolder = new CardHolder("k'X9|DH:!;uQ<kG8!P?- ,\"Y!u`r;jB^)>3AbS9,"); assertThrows(InvalidCardException.class, () -> cardHolder.setPAN("9Characte")); assertEquals("k'X9|", cardHolder.pan, "cardHolder.pan"); }
@Test public void testSetPANThrowsNullPointerException() throws Throwable { CardHolder cardHolder = new CardHolder("k'X9|DH:!;uQ<kG8!P?- ,\"Y!u`r;jB^)>3AbS9,"); try { cardHolder.setPAN(null); fail("Expected NullPointerException to be thrown"); } catch (NullPointerException ex) { if (isJavaVersionAtMost(JAVA_14)) { assertNull(ex.getMessage(), "ex.getMessage()"); } else { assertEquals("Cannot invoke \"String.length()\" because \"pan\" is null", ex.getMessage(), "ex.getMessage()"); } assertEquals("k'X9|", cardHolder.pan, "cardHolder.pan"); } }