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 = ['steps_taken', 'step_goal', 'result_more_than_90']
        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 = {
            'steps_taken': int,
            'step_goal': int,
            'result_more_than_90': bool
        }
        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_result_more_than_90_logic(self):
        """Check if `result_more_than_90` is correctly set based on step goal progress."""
        steps_taken = user_code.steps_taken
        step_goal = user_code.step_goal
        expected_value = steps_taken >= step_goal * 0.9

        _dynamic_test(
            self,
            user_code.result_more_than_90 == expected_value,
            f"The `result_more_than_90` variable is correctly set to {expected_value}.",
            f"Incorrect value for `result_more_than_90`. Expected {expected_value}, but got {user_code.result_more_than_90}."
        )

    def test_steps_left_calculation(self):
        """Check if `steps_left` is calculated correctly when under 90% of the goal."""
        steps_taken = user_code.steps_taken
        step_goal = user_code.step_goal

        if not user_code.result_more_than_90:
            expected_steps_left = step_goal - steps_taken
            actual_steps_left = getattr(user_code, 'steps_left', None)

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

    def test_if_else_used(self):
        """Check if `if` and `else` are correctly used in the code."""
        with open("user_code.py", "r") as file:
            user_code_source = file.read()

        if_found = re.search(r'^\s*if\s+.*:', user_code_source, re.MULTILINE) is not None
        else_found = re.search(r'^\s*else\s*:', user_code_source, re.MULTILINE) is not None

        _dynamic_test(
            self,
            if_found and else_found,
            "The `if` and `else` statements are correctly used.",
            "Expected both `if` and `else` statements in the code, but one or both are missing."
        )

    def test_if_else_syntax(self):
        """Check if `if` and `else` statements have colons (`:`) at the end."""
        with open("user_code.py", "r") as file:
            user_code_source = file.read()

        missing_colon_if = re.search(r'^\s*if\s+.*[^:]\s*$', user_code_source, re.MULTILINE) is not None
        missing_colon_else = re.search(r'^\s*else\s*[^:]\s*$', user_code_source, re.MULTILINE) is not None

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

    def test_valid_ways_to_write_90_percent_check(self):
        """Ensure the correct mathematical check for 90% is used."""
        with open("user_code.py", "r") as file:
            user_code_source = file.read()

        # Possible valid expressions for checking 90% of the step goal
        valid_expressions = [
            r'steps_taken\s*>=\s*step_goal\s*\*\s*0\.9',
            r'steps_taken\s*>=\s*0\.9\s*\*\s*step_goal',
            r'steps_taken\s*>=\s*$\s*step_goal\s*\*\s*0\.9\s*$',
            r'steps_taken\s*>=\s*$\s*0\.9\s*\*\s*step_goal\s*$',
            r'steps_taken\s*>=\s*step_goal\s*\*\s*$\s*90\s*/\s*100\s*$',
            r'steps_taken\s*>=\s*$\s*90\s*/\s*100\s*$\s*\*\s*step_goal',
            r'step_goal\s*\*\s0\.9\s*<=\s*steps_taken',
            r'0\.9\s*\*\s*step_goal\s*<=\s*steps_taken',
            r'steps_taken\s*>=\s*step_goal\s*\*\s*\.9',
        ]

        valid_expression_found = any(re.search(pattern, user_code_source) for pattern in valid_expressions)

        _dynamic_test(
            self,
            valid_expression_found,
            "A valid way to check if steps exceed 90% of the goal is used.",
            "Expected a comparison for 90% of the step goal using '>=' or '<=', but found strict operators like '>' or '<' instead."
        )

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


test_main.py

Udforsk nuancerne i den betingede if-else-operator i Python gennem klare forklaringer og praktiske eksempler. Styrk din forståelse med praktiske opgaver, der understøtter hvert koncept, og opdag, hvordan if-elif-else-sætninger anvendes effektivt til mere kompleks beslutningstagning.

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: Sporing af Fremskridt mod Skridtmål med If-Else-Sætninger

Løsning

Udfordring: Sporing af Fremskridt mod Skridtmål med If-Else-Sætninger

Løsning