### Question:
TimeSpan implements Comparable<TimeSpan>, Serializable, TimeSpanProvider, SizeProvider { public boolean isBefore(TimeSpan o) { return precedesIntersectsOrTrails(o) > 0; }  static TimeSpan fromISO8601String(String input); static TimeSpan fromLongs(long start, long end, long unboundedStart, long unboundedEnd); static TimeSpan get(); static TimeSpan get(Date instantaneous); static TimeSpan spanOrPt(Date start, Date end); static TimeSpan get(Date start, Date end); static TimeSpan get(Date start, Duration dur); static TimeSpan get(Duration dur, Date end); static TimeSpan get(Duration dur, long end); static TimeSpan get(Duration dur, TimeInstant end); static TimeSpan get(long time); static TimeSpan get(long start, Duration dur); static TimeSpan get(long start, long end); static TimeSpan get(TimeInstant instant); static TimeSpan get(TimeInstant start, Duration dur); static TimeSpan get(TimeInstant start, TimeInstant end); static TimeSpan newUnboundedEndTimeSpan(Date start); static TimeSpan newUnboundedEndTimeSpan(long start); static TimeSpan newUnboundedStartTimeSpan(Date end); static TimeSpan newUnboundedStartTimeSpan(long end); TimeInstant clamp(TimeInstant t); TimeSpan clamp(TimeSpan t); abstract int compareEnd(long time); abstract int compareStart(long time); abstract boolean contains(TimeSpan other); @Override abstract boolean equals(Object obj); boolean formsContiguousRange(TimeSpan other); abstract Duration getDuration(); abstract long getDurationMs(); abstract long getEnd(); abstract long getEnd(long unboundedValue); Date getEndDate(); Date getEndDate(Date unboundedValue); TimeInstant getEndInstant(); abstract Duration getGapBetween(TimeSpan other); abstract TimeSpan getIntersection(TimeSpan other); long getMidpoint(); Date getMidpointDate(); TimeInstant getMidpointInstant(); abstract RangeRelationType getRelation(TimeSpan other); abstract long getStart(); abstract long getStart(long unboundedValue); Date getStartDate(); Date getStartDate(Date unboundedValue); TimeInstant getStartInstant(); @Override TimeSpan getTimeSpan(); @Override abstract int hashCode(); abstract TimeSpan interpolate(TimeSpan other, double fraction); boolean isAfter(TimeSpan o); boolean isBefore(TimeSpan o); abstract boolean isBounded(); abstract boolean isInstantaneous(); boolean isTimeless(); abstract boolean isUnboundedEnd(); abstract boolean isUnboundedStart(); abstract boolean isZero(); TimeSpan minus(Duration dur); boolean overlaps(Collection<? extends TimeSpan> list); boolean overlaps(Date time); abstract boolean overlaps(long time); boolean overlaps(TimeInstant time); abstract boolean overlaps(TimeSpan other); TimeSpan plus(Duration dur); abstract int precedesIntersectsOrTrails(TimeSpan b); abstract TimeSpan simpleUnion(TimeSpan other); List<TimeSpan> subDivide(int divisions); List<TimeSpan> subtract(Collection<? extends TimeSpan> others); abstract List<TimeSpan> subtract(TimeSpan other); String toDisplayString(); String toISO8601String(); String toSmartString(); @Override String toString(); abstract boolean touches(TimeSpan other); abstract TimeSpan union(TimeSpan other); static final TimeSpan TIMELESS; static final TimeSpan ZERO; }### Answer:
@Test public void testIsBefore() { TimeSpan beforeTimespan = TimeSpan.get(0, new Seconds(5)); TimeSpan afterTimespan = TimeSpan.get(10000, new Seconds(5)); assertTrue(beforeTimespan.isBefore(afterTimespan)); assertFalse(afterTimespan.isBefore(beforeTimespan)); }