def test_vector_add_integer():
v = Vector3D(1, 2, 3)
u = 1
w = (
v + u
) # Måtte skrive v+u (ikke u+v) for at den skulle funke. Neste testfunksjon viser u+v
assert w == Vector3D(2, 3, 4)
def test_vector_dot_product():
v = Vector3D(1, 2, 3)
u = Vector3D(1, 1, 1)
w = u.dot(v)
assert isinstance(
w, (int, float)) # sjekker om w enten ble en int eller float
assert abs(w - 6) < 1e-12
def test_vector_add():
v = Vector3D(1, 2, 3)
u = Vector3D(1, 1, 1)
w = u + v
assert w.x == 2
assert w.y == 3
assert w.z == 4
def test_vector_cross_product2():
u = Vector3D(2, 4, 2)
v = Vector3D(2, 0, -2)
w = u.cross(v)
assert w == Vector3D(-8, 8, -8)
def test_vector_dot_product_mul():
v = Vector3D(1, 2, 3)
u = Vector3D(1, 1, 1)
w = u * v
assert isinstance(w, (int, float))
assert abs(w - 6) < 1e-12
def test_vector_add_string_raises_TypeError():
v = Vector3D(1, 2, 3)
u = "Hello"
with pytest.raises(TypeError):
u + v
def test_vector_add_integer_right():
v = Vector3D(1, 2, 3)
u = 1
w = u + v
assert w == Vector3D(2, 3, 4)
def test_vector_str(): # sjekke at koden printer det vi vil den skal printe
v = Vector3D(1, 2, 3)
assert str(
v) == "(1,2,3)" # str(v) printer string. Dette vi gjorde med __str__
def test_vector_add_eq():
v = Vector3D(1, 2, 3)
u = Vector3D(1, 1, 1)
w = u + v
assert w == Vector3D(2, 3, 4) # sjekker om en vektor er lik en annen
def test_vector_repr():
v = Vector3D(1, 2, 3)
assert repr(v) == "Vector3D(1,2,3)"
assert abs(w - 6) < 1e-12
# assert math.isclose(w,6) #Alternativ metode til 1e-12. Da må man importere math først!
def test_vector_dot_product_mul():
v = Vector3D(1, 2, 3)
u = Vector3D(1, 1, 1)
w = u * v
assert isinstance(w, (int, float))
assert abs(w - 6) < 1e-12
@pytest.mark.parametrize(
"u, v, expected",
[
(Vector3D(0, 1, 0), Vector3D(1, 0, 0), Vector3D(0, 0, -1)),
(Vector3D(2, 0, -2), Vector3D(2, 4, 2), Vector3D(8, -8, 8)),
],
)
def test_vector_cross_product(u, v, expected):
# v = Vector3D(1, 0, 0)
# u = Vector3D(0, 1, 0)
w = u.cross(v)
assert w == expected # Vector3D(0, 0, -1)
def test_vector_cross_product2():
u = Vector3D(2, 4, 2)
v = Vector3D(2, 0, -2)
w = u.cross(v)
assert w == Vector3D(-8, 8, -8)