MovingObjectTest.java

import org.junit.Test;

import static org.junit.Assert.*;

public class MovingObjectTest {
    @Test
    public void testDisplacement(){
        MovingObject object = new MovingObject(10, 10, 10, 10);
        assertEquals(600, object.displacement(), 0);
    }

    @Test
    public void testMomentum(){
        MovingObject object = new MovingObject(10, 10, 10, 10);
        assertEquals(100, object.currentMomentum(), 0);
    }
}