def test_Factors():
assert Factors() == Factors({})
assert Factors().as_expr() == S.One
assert Factors({
x: 2,
y: 3,
sin(x): 4
}).as_expr() == x**2 * y**3 * sin(x)**4
a = Factors({x: 5, y: 3, z: 7})
b = Factors({y: 4, z: 3, t: 10})
assert a.mul(b) == a * b == Factors({x: 5, y: 7, z: 10, t: 10})
assert a.div(b) == divmod(a, b) == (Factors({
x: 5,
z: 4
}), Factors({
y: 1,
t: 10
}))
assert a.quo(b) == a / b == Factors({x: 5, z: 4})
assert a.rem(b) == a % b == Factors({y: 1, t: 10})
assert a.pow(3) == a**3 == Factors({x: 15, y: 9, z: 21})
assert b.pow(3) == b**3 == Factors({y: 12, z: 9, t: 30})
assert a.gcd(b) == Factors({y: 3, z: 3})
assert a.lcm(b) == Factors({x: 5, y: 4, z: 7, t: 10})
a = Factors({x: 4, y: 7, t: 7})
b = Factors({z: 1, t: 3})
assert a.normal(b) == (Factors({x: 4, y: 7, t: 4}), Factors({z: 1}))
def test_Factors():
assert Factors() == Factors({})
assert Factors().as_expr() == S.One
assert Factors({x: 2, y: 3, sin(x): 4}).as_expr() == x**2*y**3*sin(x)**4
a = Factors({x: 5, y: 3, z: 7})
b = Factors({y: 4, z: 3, t: 10})
assert a.mul(b) == a*b == Factors({x: 5, y: 7, z: 10, t: 10})
assert a.div(b) == divmod(a, b) == (Factors({x: 5, z: 4}), Factors({y: 1, t: 10}))
assert a.quo(b) == a/b == Factors({x: 5, z: 4})
assert a.rem(b) == a%b == Factors({y: 1, t: 10})
assert a.pow(3) == a**3 == Factors({x: 15, y: 9, z: 21})
assert b.pow(3) == b**3 == Factors({y: 12, z: 9, t: 30})
assert a.gcd(b) == Factors({y: 3, z: 3})
assert a.lcm(b) == Factors({x: 5, y: 4, z: 7, t: 10})
a = Factors({x: 4, y: 7, t: 7})
b = Factors({z: 1, t: 3})
assert a.normal(b) == (Factors({x: 4, y: 7, t: 4}), Factors({z: 1}))