import unittest
import re

# Read the original user code
with open("user_code.py", "r") as file:
    original_code = file.read()

# 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 run_with_modified_workout_duration(self, duration_value):
        """Executes the modified user code with a different `workout_duration` value."""
        modified_code = re.sub(r'workout_duration\s*=\s*\d+', f'workout_duration = {duration_value}', original_code)
        local_scope = {}
        exec(modified_code, {}, local_scope)
        return local_scope["message"]

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

    def test_workout_duration_logic(self):
        """Check if `message` is assigned correctly based on `workout_duration`."""
        test_cases = [
            (70, "Excellent job! You've worked out for over an hour!"),
            (60, "Great job! Keep it up!"),
            (45, "Great job! Keep it up!"),
            (30, "Great job! Keep it up!"),
            (25, "Try to aim for at least 30 minutes of exercise.")
        ]

        for duration, expected_message in test_cases:
            with self.subTest(workout_duration=duration):
                result_message = self.run_with_modified_workout_duration(duration)

                _dynamic_test(
                    self,
                    result_message == expected_message,
                    f"The message is correctly set for `workout_duration = {duration}`.",
                    f"Incorrect message for `workout_duration = {duration}`. Expected `{expected_message}`, but got `{result_message}`."
                )

    def test_if_elif_used(self):
        """Check if `if` and `elif` statements are correctly used instead of multiple `if` statements."""
        if_statements = re.findall(r'^\s*if\s+', original_code, re.MULTILINE)
        elif_statements = re.findall(r'^\s*elif\s+', original_code, 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."""
        else_statements = re.findall(r'^\s*else\s*:', original_code, 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 test_if_elif_else_syntax(self):
        """Check if `if`, `elif`, and `else` statements have colons (`:`) at the end."""
        missing_colon_if = re.search(r'^\s*if\s+.*[^:]\s*$', original_code, re.MULTILINE) is not None
        missing_colon_elif = re.search(r'^\s*elif\s+.*[^:]\s*$', original_code, re.MULTILINE) is not None
        missing_colon_else = re.search(r'^\s*else\s*[^:]\s*$', original_code, re.MULTILINE) is not None

        _dynamic_test(
            self,
            not (missing_colon_if or missing_colon_elif or missing_colon_else),
            "All `if`, `elif`, and `else` statements have proper syntax with colons (`:`).",
            "Syntax error detected: An `if`, `elif`, or `else` statement is missing a colon (`:`)."
        )

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

test_main.py

Erkunden Sie die Feinheiten des bedingten if-else-Operators in Python anhand klarer Erklärungen und praxisnaher Beispiele. Vertiefen Sie Ihr Verständnis durch praktische Aufgaben, die jedes Konzept festigen, und entdecken Sie den effektiven Einsatz von if-elif-else-Anweisungen für komplexere Entscheidungsfindungen.

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.

Herausforderung: Trainingsdauer-Tracker

Lösung

Herausforderung: Trainingsdauer-Tracker

Lösung