import unittest
import importlib
import re

def _dynamic_test(test_case, condition, success_message, failure_message):
    if condition:
        test_case._testMethodName = success_message
        test_case.assertTrue(True, success_message)
    else:
        test_case._testMethodName = failure_message
        test_case.fail(failure_message)

class TestComparisonOperators(unittest.TestCase):

    def test_first_variable_is_declared(self):
        import user_code
        _dynamic_test(
            self,
            hasattr(user_code, 'apples_price'),
            "The `apples_price` variable is declared.",
            "Expected `apples_price` variable to be declared."
        )

    def test_second_variable_is_declared(self):
        import user_code
        _dynamic_test(
            self,
            hasattr(user_code, 'oranges_price'),
            "The `oranges_price` variable is declared.",
            "Expected `oranges_price` variable to be declared."
        )

    def test_third_variable_is_declared(self):
        import user_code
        _dynamic_test(
            self,
            hasattr(user_code, 'bananas_price'),
            "The `bananas_price` variable is declared.",
            "Expected `bananas_price` variable to be declared."
        )

    def test_first_comparison_is_declared(self):
        import user_code
        _dynamic_test(
            self,
            hasattr(user_code, 'is_same_price'),
            "The `is_same_price` variable is declared.",
            "Expected `is_same_price` variable to be declared."
        )

    def test_second_comparison_is_declared(self):
        import user_code
        _dynamic_test(
            self,
            hasattr(user_code, 'is_cheaper_combination'),
            "The `is_cheaper_combination` variable is declared.",
            "Expected `is_cheaper_combination` variable to be declared."
        )

    def test_first_comparison_correct(self):
        import user_code
        expected_value = user_code.apples_price == user_code.bananas_price
        actual_value = user_code.is_same_price
        _dynamic_test(
            self,
            actual_value == expected_value,
            f"The `is_same_price` variable contains `{expected_value}`.",
            f"Expected `is_same_price` to be `{expected_value}`, but got `{actual_value}`."
        )

    def test_second_comparison_correct(self):
        import user_code
        expected_value = user_code.apples_price + user_code.oranges_price < user_code.oranges_price + user_code.bananas_price
        actual_value = user_code.is_cheaper_combination
        _dynamic_test(
            self,
            actual_value == expected_value,
            f"The `is_cheaper_combination` variable contains `{expected_value}`.",
            f"Expected `is_cheaper_combination` to be `{expected_value}`, but got `{actual_value}`."
        )

    def test_comparison_operators_used(self):
        with open('user_code.py', 'r') as file:
            user_code_source = file.read()
        _dynamic_test(
            self,
            re.search(r'==', user_code_source) and (re.search(r'<', user_code_source) or re.search(r'>', user_code_source)),
            "Comparison operators `==` and `<` or `>` are used.",
            "Expected comparison operators `==` and `<` or `>` to be used."
        )

if __name__ == '__main__':
    unittest.main()

test_main.py

Pythonが条件分岐をどのように行うかを学びます。Booleanデータ型や比較演算子から始め、論理演算子を使った条件の組み合わせに進みます。メンバーシップや型の比較を探求し、if、elif、elseを用いた明確な条件式の書き方を習得します。

比較演算子および論理演算子の使用方法、条件式の操作、メンバーシップおよび型比較の適用方法について学習します。if/else および if/elif/else 構造を用いて、さまざまな条件に動的に対応するプログラム作成の基礎を確立します。

チャレンジ：比較演算子の操作

解答