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

Explore the nuances of the conditional if-else operator in Python through clear explanations and practical examples. Strengthen your understanding with hands-on tasks that reinforce each concept, and discover how to use if-elif-else statements effectively for more complex decision-making.

Discover the versatility of the conditional if operator and its ability to shape program outcomes. Delve into the world of logical operators, master their practical application, and learn how to prioritize them effectively to write clear and efficient code.

Learn how to make decisions based on conditions, simplify code using the else keyword, improving both efficiency and readability. Unlock the efficiency of one-liner decisions with the ternary operator!

Discover the most advanced form of conditional statements: if-elif-else. Get familiar with its syntax and learn how to apply this construction correctly to handle multiple decision-making scenarios in your programs.

Challenge: Debugging and Improving Code Logic

Solution

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Challenge: Debugging and Improving Code Logic

Solution