In this chapter, it's time to **challenge your coding abilities**. You'll be presented with a task, but this time it's up to you to determine the solution. You can use any syntax and techniques you've learned so far, but it's highly recommended to use **loops** and **conditional statements** to make your code flexible and adaptable to different inputs and scenarios.

import unittest
import importlib
import io
import re
import inspect
from contextlib import redirect_stdout
import user_code


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)


def strip_comments_from_source(module):
    try:
        source = inspect.getsource(module)
        lines = source.split('\\n')
        cleaned = []
        for line in lines:
            stripped = line.rstrip()
            if stripped.startswith('#'):
                continue
            if '#' in line:
                line = line.split('#')[0]
            if line.strip():
                cleaned.append(line)
        return '\\n'.join(cleaned)
    except Exception:
        return ""


class TestInventoryEvaluation(unittest.TestCase):

    def normalize_text(self, text):
        text = text.lower()
        text = re.sub(r'\s+', ' ', text)
        text = re.sub(r'\s*([,:?\[\]\(\)])\s*', r'\1', text)
        return text.strip()

    def test_output_messages(self):
        f = io.StringIO()
        with redirect_stdout(f):
            importlib.reload(user_code)
        output = self.normalize_text(f.getvalue())

        expected_lines = [
            "Bread should be sold at the regular price of 1.2.",
            "Eggs should be sold at the discounted price of 1.99.",
            "Apples need restocking."
        ]

        for line in expected_lines:
            expected = self.normalize_text(line)
            _dynamic_test(
                self,
                expected in output,
                f"Output includes line: {line}",
                f"Expected output: '{line}' not found."
            )

    def test_for_loop_used(self):
        source = strip_comments_from_source(user_code)
        _dynamic_test(
            self,
            re.search(r'for', source),
            "'for' loop is used in the code",
            "Expected use of 'for' loop in the code"
        )

    def test_if_statements_used(self):
        source = strip_comments_from_source(user_code)
        count = len(re.findall(r'if', source))
        _dynamic_test(
            self,
            count >= 1,
            "'if' condition is used in the code",
            "Expected at least one 'if' condition in the code"
        )


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

test_main.py

This streamlined beginner course focuses on core Python programming concepts essential for automation. Covering variables, data types, control flow (if statements, loops), functions, and basic scripting, it emphasizes practical skills for automating simple tasks. Recap and extraneous challenge chapters are removed to keep the content focused and actionable.

Challenge: Solo Coding Capstone

Output Requirements

Solution