def test_option_some_map2_piped(x: int, y: int):
xs = Some(x)
ys = Some(y)
mapper: Callable[[int, int], int] = lambda x, y: x + y
zs = pipe2((xs, ys), option.map2(mapper))
for value in zs.match(Some):
assert value == x + y
break
else:
assert False
def test_pipe2_fn_gn(x: int, y: int):
gn: Callable[[int], int] = lambda g: g * y
fn: Callable[[int, int], int] = lambda x, y: x + y
value = pipe2((x, y), fn, gn)
assert value == gn(fn(x, y))
def test_pipe2_fn(x: int, y: int):
value = pipe2((x, y), lambda x, y: x + y)
assert value == x + y
def test_pipe2_id(x: int, y: int):
value = pipe2((x, y))
assert value == (x, y)
def test_option_some_map2_piped(x: int, y: int):
xs = Some(x)
ys = Some(y)
zs = pipe2((xs, ys), option.map2(lambda x, y: x + y))
assert zs.match(Some, lambda some: some.value, _, False) == x + y