def test_inplace(self, u):
u_orig = u
u += (1, 1)
assert u == Vec2d(4, 5)
assert u is u_orig
u -= (1, 1)
assert u == Vec2d(3, 4)
assert u is u_orig
u *= 2
assert u == Vec2d(6, 8)
assert u is u_orig
u /= 2
assert u == Vec2d(3, 4)
assert u is u_orig
def read_vec(msg) -> Vec2d:
"""
Pede uma entrada vetorial.
"""
x, _, y = input(msg).lstrip("[( ").rstrip(")] ").partition(",")
return Vec2d(float(x), float(y))
def test_algebraic_operations(self, u, v):
assert u + v == Vec2d(u.x + v.x, u.y + v.y)
assert u - v == Vec2d(u.x - v.x, u.y - v.y)
assert u * 2 == Vec2d(2 * u.x, 2 * u.y)
assert 2 * u == Vec2d(2 * u.x, 2 * u.y)
assert u / 2 == Vec2d(u.x / 2, u.y / 2)
def jj():
return Vec2d(0, 1)
def ii():
return Vec2d(1, 0)
def v():
return Vec2d(1, 1)
def u():
return Vec2d(3, 4)