import unittest
import importlib
import re
import user_code  # Import user's solution

# Helper function for dynamic test naming and assertions
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 TestUserCode(unittest.TestCase):

    def test_variables_declared(self):
        """Check if all required variables are declared."""
        variables = ['exercise_time', 'title']
        missing_vars = [var for var in variables if not hasattr(user_code, var)]
        
        _dynamic_test(
            self,
            not missing_vars,
            "All required variables are declared.",
            f"Missing variable(s): {', '.join(missing_vars)}."
        )

    def test_variables_types(self):
        """Check if variables have the correct data types."""
        expected_types = {
            'exercise_time': int,
            'title': str
        }
        incorrect_types = {
            var: type(getattr(user_code, var)) 
            for var in expected_types if not isinstance(getattr(user_code, var), expected_types[var])
        }

        _dynamic_test(
            self,
            not incorrect_types,
            "All variables have the correct data types.",
            f"Incorrect data types detected: {incorrect_types}."
        )

    def test_exercise_time_logic(self):
        """Check if `title` is assigned correctly based on `exercise_time`."""
        exercise_time = user_code.exercise_time

        if exercise_time > 10:
            expected_title = "Super Achiever"
        elif exercise_time >= 6:
            expected_title = "Hard Worker"
        elif exercise_time >= 3:
            expected_title = "Getting There"
        else:
            expected_title = "Needs Improvement"

        _dynamic_test(
            self,
            user_code.title == expected_title,
            f"The `title` variable is correctly set to `{expected_title}`.",
            f"Incorrect value for `title`. Expected `{expected_title}`, but got `{user_code.title}`."
        )

    def test_if_elif_used(self):
        """Check if `if` and `elif` statements are correctly used instead of multiple `if` statements."""
        with open("user_code.py", "r") as file:
            user_code_source = file.read()

        if_statements = re.findall(r'^\s*if\s+', user_code_source, re.MULTILINE)
        elif_statements = re.findall(r'^\s*elif\s+', user_code_source, re.MULTILINE)

        _dynamic_test(
            self,
            len(if_statements) == 1 and len(elif_statements) > 0,
            "The `if-elif` structure is correctly used.",
            "Detected multiple `if` statements instead of a structured `if-elif` chain."
        )

    def test_else_used(self):
        """Check if `else` is correctly used to cover remaining cases."""
        with open("user_code.py", "r") as file:
            user_code_source = file.read()

        else_statements = re.findall(r'^\s*else\s*:', user_code_source, re.MULTILINE)

        _dynamic_test(
            self,
            len(else_statements) == 1,
            "The `else` statement is correctly used.",
            "Expected an `else` statement to handle remaining cases, but none was found."
        )

    def run_with_modified_exercise_time(self, exercise_time_value):
        with open("user_code.py", "r") as file:
            original_code = file.read()

        """Executes the modified user code with a different `exercise_time` value."""
        modified_code = re.sub(r'exercise_time\s*=\s*\d+', f'exercise_time = {exercise_time_value}', original_code)
        local_scope = {}
        exec(modified_code, {}, local_scope)
        return local_scope["title"]

    def test_exercise_time_three(self):
        """Check if `exercise_time = 3` correctly assigns `Getting There`."""
        expected_title = "Getting There"
        result_title = self.run_with_modified_exercise_time(3)

        _dynamic_test(
            self,
            result_title == expected_title,
            "The title is correctly set to `Getting There` when `exercise_time = 3`.",
            f"Incorrect title for `exercise_time = 3`. Expected `{expected_title}`, but got `{result_title}`."
        )

    def test_exercise_time_six(self):
        """Check if `exercise_time = 6` correctly assigns `Hard Worker`."""
        expected_title = "Hard Worker"
        result_title = self.run_with_modified_exercise_time(6)

        _dynamic_test(
            self,
            result_title == expected_title,
            "The title is correctly set to `Hard Worker` when `exercise_time = 6`.",
            f"Incorrect title for `exercise_time = 6`. Expected `{expected_title}`, but got `{result_title}`."
        )

    def test_exercise_time_ten(self):
        """Check if `exercise_time = 10` correctly assigns `Hard Worker`."""
        expected_title = "Hard Worker"
        result_title = self.run_with_modified_exercise_time(10)

        _dynamic_test(
            self,
            result_title == expected_title,
            "The title is correctly set to `Hard Worker` when `exercise_time = 10`.",
            f"Incorrect title for `exercise_time = 10`. Expected `{expected_title}`, but got `{result_title}`."
        )

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

test_main.py

Esplora le sfumature dell'operatore condizionale if-else in Python attraverso spiegazioni chiare ed esempi pratici. Rafforza la comprensione con esercizi pratici che consolidano ogni concetto e scopri come utilizzare efficacemente le istruzioni if-elif-else per una gestione decisionale più complessa.

Svelerai i misteri dell'operatore condizionale versatile "if", scoprendo il suo potere di modellare i risultati. Approfondisci il mondo degli operatori logici, padroneggiando la loro applicazione artistica e scoprendo i segreti per dare priorità al loro uso in modo efficace.

Impara a prendere decisioni basate su condizioni, semplifica il codice utilizzando la parola chiave else, migliorando sia l'efficienza che la leggibilità. Sblocca l'efficienza delle decisioni in una sola riga con l'operatore ternario!

Imparerai la forma più avanzata dell'operatore condizionale if-elif-else, familiarizzerai con la sintassi di questa costruzione e come viene applicata correttamente.

Sfida: Costruire un Tracker di Progresso Utilizzando le Dichiarazioni if-elif-else

Soluzione