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 = ['heart_rate', 'zone']
        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 = {
            'heart_rate': int,
            'zone': 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_heart_rate_zone_logic(self):
        """Check if `zone` is assigned correctly based on `heart_rate`."""
        heart_rate = user_code.heart_rate

        if heart_rate >= 150:
            expected_zone = "Max Zone"
        elif heart_rate >= 100:
            expected_zone = "Cardio Zone"
        elif heart_rate >= 60:
            expected_zone = "Fat-Burning Zone"
        else:
            expected_zone = "Resting Zone"

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

    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."
        )

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: Fejlretning og Forbedring af Code Logic

Løsning

Awesome!

Udfordring: Fejlretning og Forbedring af Code Logic

Løsning