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

Dieser Kurs ist darauf ausgelegt, Ihnen alle Nuancen des bedingten Operators if-else vorzustellen. Der Kurs ist mit Beispielen gefüllt, um die Verwendung eines solchen Operators besser zu verstehen, sowie mit Aufgaben, um die erworbenen Fähigkeiten zu festigen. Hier werden Sie auch mit den if-elif-else-Anweisungen vertraut gemacht.

Sie werden die Geheimnisse des vielseitigen bedingten Operators "if" entschlüsseln und seine Kraft entdecken, Ergebnisse zu gestalten. Tauchen Sie tiefer in die Welt der logischen Operatoren ein, meistern Sie deren kunstvolle Anwendung und entdecken Sie die Geheimnisse der effektiven Priorisierung ihrer Nutzung.

Lernen Sie, wie Sie Entscheidungen basierend auf Bedingungen treffen, den Code mit dem else-Schlüsselwort vereinfachen und sowohl Effizienz als auch Lesbarkeit verbessern. Entdecken Sie die Effizienz von einzeiligen Entscheidungen mit dem ternären Operator!

Sie werden die fortschrittlichste Form des bedingten Operators if-elif-else kennenlernen, sich mit der Syntax dieser Konstruktion vertraut machen und erfahren, wie sie korrekt angewendet wird.

Bedingte Anweisungen in Python

Herausforderung: Fortschrittsverfolgung

Lösung

Herausforderung: Fortschrittsverfolgung

Lösung