def test_p3_sub():
point = P3(1, 2, 3)
assert P3(0, 1, 2) == point - V3(1, 1, 1)
assert V3(0, 0, 0) == point - point
with pytest.raises(TypeError):
point - 1
def test_p3_add():
point = P3(1, 2, 3)
assert P3(2, 3, 4) == point + V3(1, 1, 1)
assert P3(2, 3, 4) == V3(1, 1, 1) + point
with pytest.raises(TypeError):
point + point
def test_plane_contains():
plane = Plane(1, 1, 1, 0)
assert plane.contains(P3(0, 0, 0))
assert plane.contains(P3(-1, 1, 0))
assert plane.contains(P3(-1, 0, 1))
with pytest.raises(TypeError):
plane.contains(V3(0, 0, 0))
def test_p3_approx():
point = P3(1, 2, 3)
assert point.approx(P3(1, 2, 3))
assert point.approx(P3(0.99999999, 1.99999999, 2.99999999))
assert not point.approx(P3(0.999, 1.999, 2.999))
with pytest.raises(TypeError):
point.approx(V3(1, 2, 3))
def test_p3_create():
point = P3(1, 2, 3)
assert 1 == point.x
assert 2 == point.y
assert 3 == point.z
assert V3(1, 2, 3) == point.vector()
def test_v3_create():
vector = V3(1, 2, 3)
assert 1 == vector.x
assert 2 == vector.y
assert 3 == vector.z
assert V3(1, 2, 3) == vector
assert P3(1, 2, 3) != vector
for a, b in zip(vector, [1, 2, 3]):
assert a == b
def test_v3_dot():
assert 10 == V3(1, 2, 3).dot(V3(3, 2, 1))
assert 10 == V3(3, 2, 1).dot(V3(1, 2, 3))
with pytest.raises(TypeError):
V3(1, 2, 3).dot(P3(3, 2, 1))
def test_plane_create():
plane = Plane.PointNormal(P3(0, 0, 0), V3(1, 1, 1))
assert Plane(1, 1, 1, 0) == plane
assert None != plane
def test_p3_ordering():
assert P3(0, 1, 1) < P3(1, 1, 1)
assert P3(0, 1, 1) < P3(1, 0, 0)
assert P3(0, 1, 1) < P3(1, -1, -1)
assert P3(1, 0, 0) < P3(1, 1, 1)
assert P3(1, 1, 0) < P3(1, 1, 1)
with pytest.raises(TypeError):
P3(0, 1, 2) < V3(1, 2, 3)