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 = ['password', 'correct_password', 'login_message']
        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 = {
            'password': str,
            'correct_password': str,
            'login_message': 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_login_message_logic(self):
        """Check if `login_message` is assigned correctly using the ternary operator."""
        password = user_code.password
        correct_password = user_code.correct_password
        expected_message = "Login successful!" if password == correct_password else "Incorrect password, try again."

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

    def test_ternary_operator_used(self):
        """Ensure a ternary operator (`true_value if condition else false_value`) is used."""
        with open("user_code.py", "r") as file:
            user_code_source = file.read()

        ternary_used = re.search(r'[^=]+\s*=\s*[^?]+\s*if\s+[^:]+\s+else\s+[^:]+', user_code_source) is not None

        _dynamic_test(
            self,
            ternary_used,
            "The ternary operator is correctly used.",
            "Expected a ternary operator (`true_value if condition else false_value`), but it was not found."
        )

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


test_main.py

This course is designed to introduce you to all the nuances of the conditional operator if-else. The course is filled with examples to better understand the use of such an operator, as well as tasks to consolidate the acquired skills. Here you will also get acquainted with the if-elif-else statements.

You'll unravel the mysteries of the versatile conditional operator "if," discovering its power to shape outcomes. Dive deeper into the world of logical operators, mastering their artful application and uncovering the secrets of prioritizing their use effectively. 

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!

You will learn about the most advanced form of the conditional operator if-elif-else, get acquainted with the syntax of this construction and how it is applied correctly.

Conditional Statements in Python

Challenge: Implementing a Password Checker with if-else Logic

Solution

Challenge: Implementing a Password Checker with if-else Logic

Solution