### Question:
Second extends RegularTimePeriod implements Serializable { @Override public long getFirstMillisecond() { return this.firstMillisecond; } Second();  Second(int second, Minute minute);  Second(int second, int minute, int hour,
                  int day, int month, int year);  Second(Date time);  Second(Date time, TimeZone zone, Locale locale); int getSecond(); Minute getMinute(); @Override long getFirstMillisecond(); @Override long getLastMillisecond(); @Override void peg(Calendar calendar); @Override RegularTimePeriod previous(); @Override RegularTimePeriod next(); @Override long getSerialIndex(); @Override long getFirstMillisecond(Calendar calendar); @Override long getLastMillisecond(Calendar calendar); @Override boolean equals(Object obj); @Override int hashCode(); @Override int compareTo(TimePeriod o1); static Second parseSecond(String s); static final int FIRST_SECOND_IN_MINUTE; static final int LAST_SECOND_IN_MINUTE; }### Answer:
@Test public void testGetFirstMillisecond() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.UK); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/London")); Second s = new Second(15, 43, 15, 1, 4, 2006); assertEquals(1143902595000L, s.getFirstMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); }
@Test public void testGetFirstMillisecondWithTimeZone() { Second s = new Second(50, 59, 15, 1, 4, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); Calendar c = new GregorianCalendar(zone); assertEquals(-623289610000L, s.getFirstMillisecond(c)); try { s.getFirstMillisecond(null); fail("NullPointerException should have been thrown on null parameter"); } catch (NullPointerException e) { } }
@Test public void testGetFirstMillisecondWithCalendar() { Second s = new Second(55, 40, 2, 15, 4, 2000); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(955766455000L, s.getFirstMillisecond(calendar)); try { s.getFirstMillisecond(null); fail("NullPointerException should have been thrown on null paramter"); } catch (NullPointerException e) { } }