ClockDriverTest.java
- By Robert C. Martin
- July 24, 2001
Uncle Bob's Agile Development Corner
Observer—Evolving into a pattern, Part 1
by Robert C. Martin
Listing 1. ClockDriverTest.java.
import junit.framework.*;
public class ClockDriverTest extends TestCase
{
public ClockDriverTest(String name)
{
super(name);
}
public void testTimeChange()
{
MockTimeSource source = new MockTimeSource();
MockTimeSink sink = new MockTimeSink();
ClockDriver driver = new ClockDriver(source,sink);
source.setTime(3,4,5);
assertEquals(3, sink.getHours());
assertEquals(4, sink.getMinutes());
assertEquals(5, sink.getSeconds());
source.setTime(7,8,9);
assertEquals(7, sink.getHours());
assertEquals(8, sink.getMinutes());
assertEquals(9, sink.getSeconds());
}
}
About the Author
Robert C. Martin is president of Object Mentor Inc., a firm that offers high-level, OO software design consulting, training, and development services. He is the author of Designing Object Oriented C++ Applications Using the Booch Method. He can be contacted at [email protected].