def test__sphere_equal__given_two_not_equal_spheres__return_false():
assert (Sphere(center=Point(
(1, 2, 3)), radius=5) == Sphere(center=Point(
(1, 2, 3)), radius=6)) is False
assert (Sphere(center=Point(
(1, 2, 3)), radius=5) == Sphere(center=Point(
(3, 5, 6)), radius=5)) is False
def test__intersect_ray_with_sphere__two_point_intersection():
R = Ray(Point((0, 0, 2)), Vector(
(1, 0, 0))) #ray passing through the sphere
S = Sphere(Point((0, 0, 0)), 3)
val = np.sqrt(5)
assert (_intersect_ray_with_sphere(R, S) == (Point(
(val, 0, 2)), Point((-val, 0, 2)))) is True
def test_intersect_ray_with_sphere_false():
r1 = Ray((0, 0, 0), (1, 1, 1))
s1 = Sphere((10, 10, 10), 5)
d, intercepts = intersect(r1, s1)
intercepts_analytical = [Point([5.0, 0.0, 0.0]), Point([-5.0, 0.0, 0.0])]
d_analytical = 2
assert ((intercepts == intercepts_analytical) and
(d_analytical == d)) is False
def test__intersect__ray_not_intersect_with_sphere__return_true():
r1 = Ray((100, 100, 100), (200, 200, 100))
s1 = Sphere((0, 0, 0), 5)
d, intersections = intersect(r1, s1)
calculated_intersections = [0]
d_analytical = 0
assert ((intersections == calculated_intersections) and
(d_analytical == d)) is True
def test__intersect_ray_with_sphere_return_true_1():
sph = Sphere((0, 0, 0), 2)
ray = Ray((2, 0, 0), (2, 1, 0))
temp = _intersect_ray_with_sphere(ray, sph)
val = 2
if np.array_equal(temp, [[2, 0, 0]]) is True:
val = 1
assert (val == 1) is True
def test__intersect_ray_with_sphere_return_false_1():
sph = Sphere((0, 0, 0), 1)
ray = Ray((5, 0, 0), (0, 5, 0))
val = 2
temp = _intersect_ray_with_sphere(ray, sph)
if temp == 0:
val = 0
assert (val == 2) is False
def test_intersect_no_intersect_ray_with_sphere_true():
r1 = Ray((100, 100, 100), (200, 200, 100))
s1 = Sphere((0, 0, 0), 5)
d, intercepts = intersect(r1, s1)
intercepts_analytical = [0]
d_analytical = 0
assert ((intercepts == intercepts_analytical) and
(d_analytical == d)) is True
def test__intersect_ray_with_sphere_return_true():
sph = Sphere((0, 0, 0), 1)
ray = Ray((-1, 0, 0), (0, 0, 0))
temp = _intersect_ray_with_sphere(ray, sph)
val = 1
print(temp)
if np.array_equal(temp, [[1.0, 0.0, 0.0], [-1.0, 0.0, 0.0]]):
val = 2
assert (val == 2) is True
def test__intersect_ray_with_sphere_return_false():
sph = Sphere((0, 0, 0), 1)
ray = Ray((1, 0, 0), (1, 1, 0))
val = 2
temp = _intersect_ray_with_sphere(ray, sph)
print(temp)
if np.array_equal(temp, [[1.0, 0.0, 0.0]]) is True:
val = 1
assert (val == 2) is False
def test__intersect__ray_with_sphere__return_false():
r1 = Ray((0, 0, 0), (1, 1, 1))
s1 = Sphere((10, 10, 10), 3)
d, intersections = intersect(r1, s1)
calculated_intersections = [
Point([3.0, 0.0, 0.0]),
Point([-3.0, 0.0, 0.0])
]
d_analytical = 2
assert ((intersections == calculated_intersections) and
(d_analytical == d)) is False
def test_sphere_equality_given_two_equal_centre_radius_return_true():
assert (Sphere((0, 0, 0), 2) == Sphere((0, 0, 0), 2)) is True
def test__sphere__given_two_equal_spheres__return_true():
s1 = Sphere((1, 2, 3), 4)
s2 = Sphere((1, 2, 3), 4)
assert (s1 == s2) is True
def test__sphere_equal__given_two_not_equal_sphere_radius__return_false():
assert (Sphere((0, 0, 0), 2) == Sphere((0, 0, 0), 4)) is False
def test_intersection__sphere_center_elsewhere__given_ray_that_intersects_at_no_points__return_true(
):
assert (intersection(Ray((-2, 1.5, 0), (1, 0, 0)), Sphere((1, 1, 1),
1.0)) == None)
def test_intersection__sphere_center_elsewhere__given_tangent_ray__return_true(
):
assert (intersection(Ray((-3, 1, 0), (1, 0, 0)), Sphere(
(1, 1, 1), 1.0)) == Point([1, 1, 0]))
def test_intersection__sphere_center_at_origin__given_ray_that_intersects_at_two_points__return_true(
):
assert array_equal(
intersection(Ray((-2, 0, 0), (1, 0, 0)), Sphere((0, 0, 0), 1.0)),
[Point([-1, 0, 0]), Point([1, 0, 0])]) is True
def test_sphere_equal__given_two_unequal_spheres__return_false():
assert (Sphere((0, 0, 0), 3) == Sphere((0, 0, 0), 5)) is False
def test_sphere_equal__given_two_equal_spheres__return_true():
assert (Sphere((0, 0, 0), 3) == Sphere((0, 0, 0), 3)) is True
def test__sphere_equal__given_two_not_equal_sphere_center__return_false():
assert (Sphere((0, 0, 0), 5) == Ray((1, 1, 1), 5)) is False
def test_sphere_equality_given_two_different_centre_radius_return_false():
assert (Sphere((0, 0, 1), 4) == Sphere((5, 0, 0), 2)) is False
def test_intersection__sphere_center_at_origin__given_tangent_ray__return_true(
):
assert (intersection(Ray((-3, 1, 0), (1, 0, 0)), Sphere(
(0, 0, 0), 1.0)) == Point([0, 1, 0]))
def test_ray_equal__given_two_equal_rays__return_true():
assert (Sphere((0, 0, 0), (1, 1, 1)) == Sphere((0, 0, 0),
(1, 1, 1))) is True
def test_intersection__sphere_center_at_origin__given_ray_that_originates_inside_sphere__return_true(
):
assert (intersection(Ray((-0.5, 0, 0), (1, 0, 0)), Sphere(
(0, 0, 0), 1.0)) == Point([1, 0, 0]))
def test_ray_equal__given_two_unequal_rays__return_false():
assert (Sphere((0, 0, 0), (2, 1, 1)) == Sphere((0, 0, 0),
(1, 1, 1))) is False
def test_intersection__sphere_center_elsewhere__given_ray_that_intersects_at_two_points__return_true(
):
assert array_equal(
intersection(Ray((-2, 1, 1), (1, 0, 0)), Sphere((1, 1, 1), 1.0)),
[Point([0, 1, 1]), Point([2, 1, 1])]) is True
def test_sphere_eq_different_center_point_and_different_radius__return_False():
Sphere1 = Sphere([1, 1, 1], 5)
Sphere4 = Sphere([2, 2, 2], 7)
assert (Sphere1 == Sphere4) is False
def test_intersection__sphere_center_elsewhere__given_ray_that_originates_inside_sphere__return_true(
):
assert (intersection(Ray((1, 1, 1), (0, 0, 1)), Sphere(
(1, 1, 1), 1.0)) == Point([1, 1, 2]))
def test__sphere__given_two_not_equal_spheres__return_false():
s1 = Sphere((1, 2, 3), 4)
s2 = Sphere((0, 0, 0), 6)
assert (s1 == s2) is False
def test_sphere_eq_same_center_point_and_same_radius__return_True():
Sphere1 = Sphere([1, 1, 1], 5)
Sphere2 = Sphere([1, 1, 1], 5)
assert (Sphere1 == Sphere2) is True
def test__sphere_equal__given_two_equal_spheres__return_true():
assert (Sphere((1, 2, 3), 5) == Sphere((1, 2, 3), 5)) is True