Sample demonstrating using Builder Pattern for VO

RightVideo.java

package info.adavis.sample.models;

/**
 * Sample Domain Object used for demonstration
 *
 * @author Annyce Davis
 */
public class Video {

    private long id;
    private String url;
    private String displayDate;
    private double duration;

    public long getId() {
        return id;
    }

    public Video setId(long id) {
        this.id = id;
        return this;
    }

    public String getUrl() {
        return url;
    }

    public Video setUrl(String url) {
        this.url = url;
        return this;
    }

    public String getDisplayDate() {
        return displayDate;
    }

    public Video setDisplayDate(String displayDate) {
        this.displayDate = displayDate;
        return this;
    }

    public double getDuration() {
        return duration;
    }

    public Video setDuration(double duration) {
        this.duration = duration;
        return this;
    }
}

RightVideoPlaybackServiceTest.java

package info.adavis.sample.services;

import org.junit.Before;
import org.junit.Test;

import info.adavis.sample.models.Video;

import static org.junit.Assert.assertEquals;

/**
 * @author Annyce Davis
 */
public class VideoPlaybackServiceTest {

    private VideoPlaybackService playbackService;

    @Before
    public void setUp() {
        playbackService = new VideoPlaybackService();
    }

    @Test
    public void shouldReceiveCurrentUrlWhenVideoAvailable() {
        String url = "http://www.my_video.mp4";
        playbackService.setCurrentVideo(new Video().setUrl(url));

        String actualUrl = playbackService.playCurrentVideo();

        assertEquals("the urls are not the same", url, actualUrl);
    }

}