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

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 Workout Duration Tracker with if-elif-else

Løsning

Challenge: Implementing a Workout Duration Tracker with if-elif-else

Løsning