From e16387d8571c413423f8f5f5a02e23b9591161f9 Mon Sep 17 00:00:00 2001
From: momstrosity <momstrosity@users.noreply.github.com>
Date: Tue, 20 May 2025 17:32:49 +0000
Subject: [PATCH 1/5] Start draft PR


From ce98de47578bc2ce4cadcddb3f55ededc177caa2 Mon Sep 17 00:00:00 2001
From: momstrosity <momstrosity@users.noreply.github.com>
Date: Tue, 20 May 2025 17:33:13 +0000
Subject: [PATCH 2/5] Add string reversal function with type checking and
 docstring

---
 src/string_reversal.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/string_reversal.py

diff --git a/src/string_reversal.py b/src/string_reversal.py
new file mode 100644
index 0000000..65fb138
--- /dev/null
+++ b/src/string_reversal.py
@@ -0,0 +1,19 @@
+def reverse_string(input_str):
+    """
+    Reverse a given string.
+    
+    Args:
+        input_str (str): The input string to be reversed.
+    
+    Returns:
+        str: The reversed string.
+    
+    Raises:
+        TypeError: If the input is not a string.
+    """
+    # Check if input is a string
+    if not isinstance(input_str, str):
+        raise TypeError("Input must be a string")
+    
+    # Return the reversed string
+    return input_str[::-1]
\ No newline at end of file

From e80d8e9bb77b226e5dd94c2295cbe098c939df06 Mon Sep 17 00:00:00 2001
From: momstrosity <momstrosity@users.noreply.github.com>
Date: Tue, 20 May 2025 17:33:20 +0000
Subject: [PATCH 3/5] Add comprehensive tests for string reversal function

---
 tests/test_string_reversal.py | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 tests/test_string_reversal.py

diff --git a/tests/test_string_reversal.py b/tests/test_string_reversal.py
new file mode 100644
index 0000000..86c7336
--- /dev/null
+++ b/tests/test_string_reversal.py
@@ -0,0 +1,35 @@
+import pytest
+from src.string_reversal import reverse_string
+
+def test_basic_string_reversal():
+    """Test basic string reversal"""
+    assert reverse_string("hello") == "olleh"
+    assert reverse_string("python") == "nohtyp"
+
+def test_empty_string():
+    """Test reversal of an empty string"""
+    assert reverse_string("") == ""
+
+def test_single_character():
+    """Test reversal of a single character"""
+    assert reverse_string("a") == "a"
+
+def test_string_with_spaces():
+    """Test reversal of string with spaces"""
+    assert reverse_string("hello world") == "dlrow olleh"
+
+def test_string_with_special_characters():
+    """Test reversal of string with special characters"""
+    assert reverse_string("!@#$%") == "%$#@!"
+
+def test_unicode_string():
+    """Test reversal of unicode string"""
+    assert reverse_string("こんにちは") == "はちにんこ"
+
+def test_invalid_input_type():
+    """Test that TypeError is raised for non-string inputs"""
+    with pytest.raises(TypeError, match="Input must be a string"):
+        reverse_string(12345)
+    
+    with pytest.raises(TypeError, match="Input must be a string"):
+        reverse_string(None)
\ No newline at end of file

From 97d86e281658ee8fb51ea72bf1bb9feac801e33c Mon Sep 17 00:00:00 2001
From: momstrosity <momstrosity@users.noreply.github.com>
Date: Tue, 20 May 2025 17:34:06 +0000
Subject: [PATCH 4/5] Update string reversal function with explicit type
 checking and comments

---
 src/__pycache__/string_reversal.cpython-312.pyc  | Bin 0 -> 637 bytes
 src/string_reversal.py                           |   4 ++--
 ..._string_reversal.cpython-312-pytest-8.3.5.pyc | Bin 0 -> 6562 bytes
 3 files changed, 2 insertions(+), 2 deletions(-)
 create mode 100644 src/__pycache__/string_reversal.cpython-312.pyc
 create mode 100644 tests/__pycache__/test_string_reversal.cpython-312-pytest-8.3.5.pyc

diff --git a/src/__pycache__/string_reversal.cpython-312.pyc b/src/__pycache__/string_reversal.cpython-312.pyc
new file mode 100644
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diff --git a/src/string_reversal.py b/src/string_reversal.py
index 65fb138..cd32191 100644
--- a/src/string_reversal.py
+++ b/src/string_reversal.py
@@ -11,9 +11,9 @@ def reverse_string(input_str):
     Raises:
         TypeError: If the input is not a string.
     """
-    # Check if input is a string
+    # Validate input is a string
     if not isinstance(input_str, str):
         raise TypeError("Input must be a string")
     
-    # Return the reversed string
+    # Return the reversed string using slice notation
     return input_str[::-1]
\ No newline at end of file
diff --git a/tests/__pycache__/test_string_reversal.cpython-312-pytest-8.3.5.pyc b/tests/__pycache__/test_string_reversal.cpython-312-pytest-8.3.5.pyc
new file mode 100644
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From e5ab74cc02bdb884cf247563c9fd72ed4e28af87 Mon Sep 17 00:00:00 2001
From: momstrosity <momstrosity@users.noreply.github.com>
Date: Tue, 20 May 2025 17:34:42 +0000
Subject: [PATCH 5/5] Implement string reversal using two-pointer swap method

---
 .../string_reversal.cpython-312.pyc            | Bin 637 -> 637 bytes
 src/string_reversal.py                         |  17 ++++++++++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/__pycache__/string_reversal.cpython-312.pyc b/src/__pycache__/string_reversal.cpython-312.pyc
index 1328a2a33a9ea38e35bc50c8737ab9b9e96aa60a..0bbf0020386c8cdaa0b2230f810292cbfa1f521f 100644
GIT binary patch
delta 22
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delta 22
ccmey%@|T78G%qg~0}$NYqmyxDBX0o{08@eo8~^|S

diff --git a/src/string_reversal.py b/src/string_reversal.py
index cd32191..02bc2b3 100644
--- a/src/string_reversal.py
+++ b/src/string_reversal.py
@@ -1,6 +1,6 @@
 def reverse_string(input_str):
     """
-    Reverse a given string.
+    Reverse a given string manually, without using slice notation or reverse().
     
     Args:
         input_str (str): The input string to be reversed.
@@ -15,5 +15,16 @@ def reverse_string(input_str):
     if not isinstance(input_str, str):
         raise TypeError("Input must be a string")
     
-    # Return the reversed string using slice notation
-    return input_str[::-1]
\ No newline at end of file
+    # Convert string to list of characters for easier manipulation
+    chars = list(input_str)
+    
+    # Manually reverse the list of characters
+    left, right = 0, len(chars) - 1
+    while left < right:
+        # Swap characters from both ends
+        chars[left], chars[right] = chars[right], chars[left]
+        left += 1
+        right -= 1
+    
+    # Convert back to string and return
+    return ''.join(chars)
\ No newline at end of file