@Test
public void getHitData_WithHit_ExpectHitData() {
// Given
Point center = new Point(1.0, 0.0, 1.0);
double radius = 1.0;
UtilImpl ops = new UtilImpl();
Vector d = new Vector(0.0, 0.0, -1.0);
Point eye = new Point(1.0, 0.0, 4.0);
Ray ray = new RayImpl(d, eye);
Sphere classUnderTest = new Sphere(center, radius, null, null, null, null, ops);
ArrayList<HitData> expectedHitData = new ArrayList<HitData>();
HitData hit =
new HitData(2.0, classUnderTest, new Vector(0.0, 0.0, 1.0), new Point(1.0, 0.0, 2.0));
expectedHitData.add(hit);
hit = new HitData(4.0, classUnderTest, new Vector(0.0, 0.0, -1.0), new Point(1.0, 0.0, 0.0));
expectedHitData.add(hit);
// When
ArrayList<HitData> actual = classUnderTest.getHitData(ray);
// Then
TestsHelper.arrayListSubsets(expectedHitData, actual);
}
@Test
public void getHitData_MissLeft_ExpectNoHits() {
// Given
Point center = new Point(0.0, 0.0, 0.0);
double radius = 1.0;
UtilImpl ops = new UtilImpl();
Vector d = new Vector(0.0, 1.0, -1.0);
Point eye = new Point(0.0, 0.0, 4.0);
Ray ray = new RayImpl(d, eye);
Sphere classUnderTest = new Sphere(center, radius, null, null, null, null, ops);
// When
ArrayList<HitData> list = classUnderTest.getHitData(ray);
// Then
Assert.assertEquals(0, list.size());
}
