Consider the following interface for an ADT for representing intervals (periods

Question

Consider the following interface for an ADT for representing intervals (periods of time as opposed to instantaneous moments of time) typedef long Duration; // measured in seconds class DateTime ( public DateTime (int year, int month, int day, int hour, int minute, int second): /Il How many seconds between two times? Duration operator-(const Date Time& right) const class Interval public: Il // An interval is a period of time beginning with a starting time /I and running up to, but not including, its stop time Interval 0: Interval (DateTime start, DateTime stop); Interval (DateTime start, Duration length): DateTime getStart) const: void setStart (DateTime); DateTime getStop) const void setStop (Date Time): Duration getDuration: bool contains (DateTime d) bool overlaps (Interval intrvl); bool operator (const Interval& other) const; private: DateTime theStart, theStop; Using the JUnit style, write a self-checking test for the 3rd Interval constuctor

Explanation / Answer

ANS.

JUnit test for the 3rd Interval constructor:-

import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class Interval3Test
{
private Interval expected;
@Before
public void setUp() throws Exception
{
DateTime dateTime = new DateTime(2018,6,21,12,0,0);
expected = new Interval(dateTime, getDuration());
}
@Test
public void test()
{
DateTime dateTime = new DateTime(2018,6,21,12,0,0);
Interval result = new Interval(dateTime, getDuration());
assertEquals(expected.toString(), result.toString());
}
}

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