def test_list(self):
assert [['4', '6'], [4, 6]] == P.Pipe(
3,
[
P + 1
,
P * 2
],
[
P._2(map, str)
,
()
]
)
def test_underscores(self):
assert P._(a2_plus_b_minus_2c, 2, 4)(3) == 3 # (3)^2 + 2 - 2*4
assert P._2(a2_plus_b_minus_2c, 2, 4)(3) == -1 # (2)^2 + 3 - 2*4
assert P._3(a2_plus_b_minus_2c, 2, 4)(3) == 2 # (2)^2 + 4 - 2*3