edits after second review

solutions/convert_to_uppercase.py

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+# !/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+A module that converts letters to uppercase
+
+Created on 31 12 2024
+
+@author: Kareiman Altayeb
+"""
+
+
+def convert_to_uppercase(user_text: str) -> str:
+    """Asks the user to enter a text and returns the text in capital
+    with all characters in uppercase
+
+    Parameters:
+        user_text (str): The user input text to be converted to uppercase.
+
+    Returns:
+        str : user_text in capital letters
+
+    Raises:
+        AssertionError: If the input is empty or contains only spaces.
+
+    Examples:
+    >>> convert_to_uppercase('hello')
+        'HELLO'
+    >>> convert_to_uppercase('HelLo')
+        'HELLO'
+    >>> convert_to_uppercase('123hello')
+        '123HELLO'
+    """
+
+    user_text = user_text.strip()
+
+    if not user_text:
+        raise AssertionError("Entry cannot be empty or just spaces")
+
+    return user_text.upper()

solutions/tests/test_convert_to_uppercase.py

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+# !/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+"""
+A module to test convert_to_uppercase function
+
+Test categories:
+    - Standard cases: Regular text with different length
+    - Edge cases: Mix of different data types
+    - Defensive tests: Empty input
+
+Created on 03 01 2025
+
+@author: Kareiman Altayeb
+"""
+
+import unittest
+
+# To test convert_to_capital
+from solutions.convert_to_uppercase import convert_to_uppercase
+
+
+class TestConvertToCapitalLetters(unittest.TestCase):
+    "Tests convert_to_capital function"
+
+    # Standard test cases
+
+    def test_all_small_letters(self):
+        """It should convert all letters to capital"""
+        self.assertEqual(convert_to_uppercase("kareiman"), "KAREIMAN")
+
+    def test_some_are_capital_letters(self):
+        """It should convert all letters to capital"""
+        self.assertEqual(convert_to_uppercase("kAREiMan"), "KAREIMAN")
+
+    def test_full_sentence(self):
+        """It should convert all words to capital"""
+        self.assertEqual(convert_to_uppercase("happy new year"), "HAPPY NEW YEAR")
+
+    # Edge cases
+
+    def test_mixed_with_numbers(self):
+        """It should return the numbers the same"""
+        self.assertEqual(convert_to_uppercase("12345kareiman"), "12345KAREIMAN")
+
+    def test_special_characters(self):
+        """It should return special characters the same"""
+        self.assertEqual(convert_to_uppercase("?!!!"), "?!!!")
+
+    # Defensive tests
+
+    def test_empty_entry(self):
+        """It should raise an error for space or empty entry"""
+        with self.assertRaises(AssertionError):
+            convert_to_uppercase("")