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):
        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_70(self):
        """Check message for `workout_duration = 70`."""
        duration = 70
        expected_message = "Excellent job! You've worked out for over an hour!"
        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_workout_duration_60(self):
        """Check message for `workout_duration = 60`."""
        duration = 60
        expected_message = "Great job! Keep it up!"
        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_workout_duration_45(self):
        """Check message for `workout_duration = 45`."""
        duration = 45
        expected_message = "Great job! Keep it up!"
        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_workout_duration_30(self):
        """Check message for `workout_duration = 30`."""
        duration = 30
        expected_message = "Great job! Keep it up!"
        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_workout_duration_25(self):
        """Check message for `workout_duration = 25`."""
        duration = 25
        expected_message = "Try to aim for at least 30 minutes of exercise."
        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

Dette kursus er designet til at introducere dig til alle nuancerne af den betingede operator if-else. Kurset er fyldt med eksempler for bedre at forstå brugen af en sådan operator, samt opgaver til at konsolidere de erhvervede færdigheder. Her vil du også blive bekendt med if-elif-else udsagn.

Du vil afsløre mysterierne ved den alsidige betingede operator "if," og opdage dens kraft til at forme resultater. Dyk dybere ind i verdenen af logiske operatorer, mestre deres kunstfærdige anvendelse og afsløre hemmelighederne ved at prioritere deres brug effektivt.

Lær hvordan man træffer beslutninger baseret på betingelser, forenkler kode ved hjælp af else-nøgleordet, hvilket forbedrer både effektivitet og læsbarhed. Lås op for effektiviteten af énliniers beslutninger med den ternære operator!

Du vil lære om den mest avancerede form af den betingede operator if-elif-else, blive bekendt med syntaksen for denne konstruktion og hvordan den anvendes korrekt.

Udfordring: Implementering af en Træningsvarighedstracker med if-elif-else

Løsning

Udfordring: Implementering af en Træningsvarighedstracker med if-elif-else

Løsning