8. Backward Each Word / Вирішуємо задачі на Python CheckIO Українською

# --------- tasks/backward_words.py  ------------


def backward_string_by_word(text: str) -> str:

    words = text.split(" ")

    res = []
    for word in words:
        word = reverse(word)
        res.append(word)

    return " ".join(res)


def reverse(text: str) -> str:
    return text[::-1]


def backward_string_by_word_gen(text: str) -> str:
    return " ".join(reverse(word) for word in text.split(" "))


def backward_string_by_word_map(text: str) -> str:
    return " ".join(map(reverse, text.split(" ")))


# ---------      tests/test_backward_words.py   ----------------


import pytest

from tasks.backward_words import (backward_string_by_word, reverse,
                                  backward_string_by_word_gen,
                                  backward_string_by_word_map)


@pytest.mark.parametrize("callable", [backward_string_by_word,
                                      backward_string_by_word_gen,
                                      backward_string_by_word_map])
@pytest.mark.parametrize(["text", "result"], [
    ['', ''],
    ['world', 'dlrow'],
    ['hello world', 'olleh dlrow'],
    ['hello   world', 'olleh   dlrow'],
    ['welcome to a game', 'emoclew ot a emag'],
])
def test_backward_words(callable, text, result):
    assert callable(text) == result


def test_reverse():
    assert reverse("123") == "321"
    assert reverse("") == ""