Added test_.py handling

.gitignore

@@ -0,0 +1 @@
+*__pycache__

Makefile

@@ -0,0 +1,4 @@
+.PHONY: test
+
+test:
+	python3 -m unittest test.py

README.md

@@ -1,6 +1,6 @@
 # Bulk String Replacer CLI (bsr) 🔄
-[![GitHub Sponsors](https://img.shields.io/badge/Sponsor-GitHub%20Sponsors-blue?logo=github)](https://github.com/sponsors/kevinveenbirkenbach) [![Patreon](https://img.shields.io/badge/Support-Patreon-orange?logo=patreon)](https://www.patreon.com/c/kevinveenbirkenbach) [![Buy Me a Coffee](https://img.shields.io/badge/Buy%20me%20a%20Coffee-Funding-yellow?logo=buymeacoffee)](https://buymeacoffee.com/kevinveenbirkenbach) [![PayPal](https://img.shields.io/badge/Donate-PayPal-blue?logo=paypal)](https://s.veen.world/paypaldonate)
 
+[![GitHub Sponsors](https://img.shields.io/badge/Sponsor-GitHub%20Sponsors-blue?logo=github)](https://github.com/sponsors/kevinveenbirkenbach) [![Patreon](https://img.shields.io/badge/Support-Patreon-orange?logo=patreon)](https://www.patreon.com/c/kevinveenbirkenbach) [![Buy Me a Coffee](https://img.shields.io/badge/Buy%20me%20a%20Coffee-Funding-yellow?logo=buymeacoffee)](https://buymeacoffee.com/kevinveenbirkenbach) [![PayPal](https://img.shields.io/badge/Donate-PayPal-blue?logo=paypal)](https://s.veen.world/paypaldonate)
 
 [![License: AGPL v3](https://img.shields.io/badge/License-AGPL%20v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0.en.html) [![GitHub stars](https://img.shields.io/github/stars/kevinveenbirkenbach/bulk-string-replacer.svg?style=social)](https://github.com/kevinveenbirkenbach/bulk-string-replacer/stargazers)
 
@@ -10,11 +10,12 @@ Bulk String Replacer CLI (bsr) is a powerful Python-based command-line tool that
 
 ## 🛠 Features
 
-- **Comprehensive Replacement:** Replace strings in folder names, file names, and inside file contents.
-- **Recursive Processing:** Traverse directories recursively to update all matching files.
-- **Hidden Files Support:** Option to include hidden files and directories.
-- **Preview Mode:** Preview changes without modifying any files.
-- **Verbose Output:** Display detailed logs of the operations performed.
+* **Comprehensive Replacement:** Replace strings in folder names, file names, and inside file contents.
+* **Recursive Processing:** Traverse directories recursively to update all matching files.
+* **Hidden Files Support:** Option to include hidden files and directories.
+* **Preview Mode:** Preview changes without modifying any files.
+* **Verbose Output:** Display detailed logs of the operations performed.
+* **Full-Path Moves:** Match an `old_string` as a relative path (including `/`) and move matching subtrees to a new location.
 
 ---
 
@@ -36,36 +37,50 @@ This command makes the tool globally available as `bsr` in your terminal. 🚀
 Once installed, run Bulk String Replacer CLI using the alias:
 
 ```bash
-bsr old_string --new-string "replacement_value" [options] [paths...]
+bsr old_string -n "replacement_value" [options] [paths...]
 ```
 
 ### Options
 
-- **`old_string`**: The string to search for and replace.
-- **`--new-string`**: The string that will replace `old_string` (default is an empty string).
-- **`--recursive`**: Process all subdirectories and files recursively.
-- **`--folder`**: Replace occurrences within folder names.
-- **`--files`**: Replace occurrences within file names.
-- **`--content`**: Replace occurrences inside file contents.
-- **`--preview`**: Preview changes without applying them.
-- **`--verbose`**: Display detailed logs during execution.
-- **`--hidden`**: Include hidden files and directories in the operation.
+* **`old_string`**: The string or relative path to search for.
+* **`-n, --new`**: The replacement string or new relative path (default is empty string).
+* **`-r, --recursive`**: Recurse into all subdirectories and files.
+* **`-F, --folders`**: Replace occurrences within folder names.
+* **`-f, --files`**: Replace occurrences within file names.
+* **`-c, --content`**: Replace occurrences inside file contents.
+* **`-P, --path`**: Match `old_string` as a relative path (e.g. `vars/config.yml`) and move matching subtree to `new` relative path.
+* **`-p, --preview`**: Preview changes without applying them.
+* **`-v, --verbose`**: Display detailed logs during execution.
+* **`-H, --hidden`**: Include hidden files and directories in the operation.
 
-### Example Command
+### Examples
+
+Replace text within filenames, folder names, and file contents:
 
 ```bash
-bsr "old_value" --new-string "new_value" --recursive --verbose /path/to/first/directory /path/to/second/directory
+bsr "old_value" -n "new_value" -r -F -f -c /path/to/dir
 ```
 
-Replace `/path/to/first/directory` and `/path/to/second/directory` with the paths you wish to process.
+Move every `vars/configuration.yml` to `config/main.yml` in each parent directory:
+
+```bash
+bsr "vars/configuration.yml" -n "config/main.yml" -r -P ./
+```
+
+Preview a full-path move without changes:
+
+```bash
+bsr "vars/configuration.yml" -n "config/main.yml" -r -P -p ./
+```
 
 ---
 
 ## 🧑‍💻 Author
 
-Developed by **Kevin Veen-Birkenbach**  
-- 📧 [kevin@veen.world](mailto:kevin@veen.world)  
-- 🌐 [https://www.veen.world/](https://www.veen.world/)
+Developed by **Kevin Veen-Birkenbach**
+
+* 📧 [kevin@veen.world](mailto:kevin@veen.world)
+* 🌐 [https://www.veen.world/](https://www.veen.world/)
 
 Learn more about the development of this tool in the [original ChatGPT conversation](https://chat.openai.com/share/cfdbc008-8374-47f8-8853-2e00ee27c959).
 
@@ -73,7 +88,7 @@ Learn more about the development of this tool in the [original ChatGPT conversat
 
 ## 📜 License
 
-This project is licensed under the **GNU Affero General Public License, Version 3, 19 November 2007**.  
+This project is licensed under the **GNU Affero General Public License, Version 3, 19 November 2007**.
 For more details, see the [LICENSE](./LICENSE) file.
 
 ---

main.py

@@ -1,90 +1,234 @@
+#!/usr/bin/env python3
 import os
 import argparse
 
+
 def replace_content(path, old_string, new_string, preview, verbose):
+    """
+    Replace occurrences of old_string with new_string inside the file at path.
+    """
     try:
         with open(path, 'r', encoding='utf-8') as f:
             content = f.read()
-
         if old_string in content:
             new_content = content.replace(old_string, new_string)
-            
             print_verbose(f"Replacing content in: {path}", verbose)
-                
             if not preview:
-                with open(path, 'w', encoding='utf-8') as f:
-                    f.write(new_content)
+                with open(path, 'w', encoding='utf-8') as fw:
+                    fw.write(new_content)
+    except UnicodeDecodeError:
+        print_verbose(f"Warning: Unicode decode error in file {path}. Skipping.", verbose)
 
-    except UnicodeDecodeError as e:
-        print_verbose(f"Warning: Unicode decode error encountered in file {path}. Skipping file.", verbose)
 
-def print_verbose(content,verbose):
+def print_verbose(message, verbose):
     if verbose:
-        print(content)
-    
+        print(message)
 
-def process_directory(base_path, old_string, new_string, recursive, folder, files, content, preview, verbose, hidden):
-    # Eine Liste, um die Pfade der umzubenennenden Ordner zu speichern
-    directories_to_rename = []
 
-    for root, dirs, filenames in os.walk(base_path):
-        # Wenn "hidden" nicht gesetzt ist, versteckte Dateien/Ordner aus der Liste entfernen
-        if not hidden:
-            dirs[:] = [d for d in dirs if not d.startswith(".")]
-            filenames = [f for f in filenames if not f.startswith(".")]
+def process_directory(
+    base_path,
+    old_string,
+    new_string,
+    recursive,
+    rename_folders,
+    rename_files,
+    replace_in_content,
+    preview,
+    verbose,
+    include_hidden,
+    rename_paths,
+    auto_path
+):
+    """
+    Traverse the directory tree and perform operations based on flags:
+    - replace_in_content: replace inside file contents
+    - rename_files: rename files whose names contain old_string
+    - rename_folders: rename folders whose names contain old_string
+    - rename_paths: treat old_string as a relative path and move matching items to new_string path.
+      When rename_paths is set, prompts occur for Python files unless auto_path is True.
+      Additionally, for test_*.py files when auto_path is False, prompts to extract 'test_' prefix into a subdirectory.
+    """
+    if rename_paths:
+        # Full-path moves and optional test_ prefix extraction
+        for root, dirs, files in os.walk(base_path):
+            if not include_hidden:
+                dirs[:] = [d for d in dirs if not d.startswith('.')]
+                files = [f for f in files if not f.startswith('.')]
+            for name in files + dirs:
+                full_src = os.path.join(root, name)
+                rel = os.path.relpath(full_src, base_path)
+                if old_string in rel:
+                    new_rel = rel.replace(old_string, new_string)
 
-        if content:
-            for f in filenames:
+                    # Special handling for test_*.py when auto_path is False
+                    if (
+                        os.path.isfile(full_src)
+                        and name.startswith('test_')
+                        and name.endswith('.py')
+                        and not auto_path
+                    ):
+                        choice = None
+                        while choice not in ('y', 'n'):
+                            choice = input(
+                                f"File {full_src} is a test module. "
+                                "Extract 'test_' prefix into subdirectory? [y/N]: "
+                            ).strip().lower() or 'n'
+                        if choice == 'y':
+                            rel_dir = os.path.dirname(rel)
+                            orig_basename = os.path.basename(rel)
+                            base_noext = orig_basename[:-3]  # remove .py
+                            subdir_name = base_noext[len('test_'):]
+                            new_name_part = os.path.basename(new_string)
+                            new_filename = f"test_{new_name_part}.py"
+                            new_rel = os.path.join(rel_dir, subdir_name, new_filename)
+
+                    full_dst = os.path.join(base_path, new_rel)
+                    print_verbose(f"Moving {full_src} → {full_dst}", verbose)
+                    if not preview:
+                        os.makedirs(os.path.dirname(full_dst), exist_ok=True)
+                        os.rename(full_src, full_dst)
+            if not recursive:
+                break
+
+        # Line-by-line content replacement in Python files
+        for root, dirs, files in os.walk(base_path):
+            if not include_hidden:
+                dirs[:] = [d for d in dirs if not d.startswith('.')]
+                files = [f for f in files if not f.startswith('.')]
+            for f in files:
+                if f.endswith('.py'):
+                    file_path = os.path.join(root, f)
+                    print_verbose(f"Processing Python file: {file_path}", verbose)
+                    try:
+                        with open(file_path, 'r', encoding='utf-8') as ff:
+                            lines = ff.readlines()
+                    except UnicodeDecodeError:
+                        print_verbose(f"Warning: Unicode decode error in file {file_path}. Skipping.", verbose)
+                        continue
+                    old_slash = old_string.replace('/', os.sep)
+                    new_dot = new_string.replace('/', '.')
+                    changed = False
+                    for idx, line in enumerate(lines):
+                        if old_slash in line:
+                            start = max(0, idx - 3)
+                            end = min(len(lines), idx + 4)
+                            print(f"\nContext in {file_path}, line {idx+1}:")
+                            for i in range(start, end):
+                                prefix = '>' if i == idx else ' '
+                                print(f"{prefix} {i+1}: {lines[i].rstrip()}")
+
+                            if auto_path:
+                                choice = '1'
+                            else:
+                                choice = None
+                                while choice not in ('1', '2'):
+                                    choice = input(
+                                        f"Replace this line:\n"
+                                        f"  1) slash-based: '{old_slash}' → '{new_string}'\n"
+                                        f"  2) dot-based:   '{old_slash}' → '{new_dot}'\n"
+                                        f"Choose [1/2]: "
+                                    ).strip()
+                            if choice == '1':
+                                lines[idx] = line.replace(old_slash, new_string)
+                            else:
+                                lines[idx] = line.replace(old_slash, new_dot)
+                            changed = True
+                            print_verbose(f"Replaced line {idx+1} in {file_path}", verbose)
+                    if changed and not preview:
+                        with open(file_path, 'w', encoding='utf-8') as fw:
+                            fw.writelines(lines)
+            if not recursive:
+                break
+
+        # Exit early if only path-mode is requested
+        if not (rename_files or replace_in_content):
+            return
+
+    # Fallback operations: replace content, rename files, rename folders
+    folders_to_rename = []
+    for root, dirs, files in os.walk(base_path):
+        if not include_hidden:
+            dirs[:] = [d for d in dirs if not d.startswith('.')]
+            files = [f for f in files if not f.startswith('.')]
+
+        if replace_in_content:
+            for f in files:
                 replace_content(os.path.join(root, f), old_string, new_string, preview, verbose)
 
-        if files:
-            for f in filenames:
+        if rename_files:
+            for f in files:
                 if old_string in f:
-                    old_path = os.path.join(root, f)
-                    new_path = os.path.join(root, f.replace(old_string, new_string))
-                    print_verbose(f"Renaming file from: {old_path} to: {new_path}",verbose)
+                    src = os.path.join(root, f)
+                    dst = os.path.join(root, f.replace(old_string, new_string))
+                    print_verbose(f"Renaming file: {src} → {dst}", verbose)
                     if not preview:
-                        os.rename(old_path, new_path)
+                        os.rename(src, dst)
 
-        # Pfade von zu ändernden Ordnern speichern
-        if folder:
+        if rename_folders:
             for d in dirs:
                 if old_string in d:
-                    old_path = os.path.join(root, d)
-                    new_path = os.path.join(root, d.replace(old_string, new_string))
-                    directories_to_rename.append((old_path, new_path))
+                    src = os.path.join(root, d)
+                    dst = os.path.join(root, d.replace(old_string, new_string))
+                    folders_to_rename.append((src, dst))
 
         if not recursive:
             break
 
-    # Ordnernamen ändern nach dem os.walk() Durchlauf
-    for old_path, new_path in directories_to_rename:
-        print_verbose(f"Renaming directory from: {old_path} to: {new_path}",verbose)
+    for src, dst in folders_to_rename:
+        print_verbose(f"Renaming directory: {src} → {dst}", verbose)
         if not preview:
-            os.rename(old_path, new_path)
+            os.rename(src, dst)
+
 
 def main():
-    parser = argparse.ArgumentParser(description="Replace strings in directories and files.")
-    parser.add_argument('paths', nargs='+', help="Paths in which replacements should be made.")
-    parser.add_argument('old_string', help="The string to be replaced.")
-    parser.add_argument('--new-string', dest='new_string', default="", help="The string to replace with. Default is empty string.")
-    parser.add_argument('--recursive', action='store_true', help="Replace in all subdirectories and files.")
-    parser.add_argument('--folder', action='store_true', help="Replace in folder names.")
-    parser.add_argument('--files', action='store_true', help="Replace in file names.")
-    parser.add_argument('--content', action='store_true', help="Replace inside file contents.")
-    parser.add_argument('--preview', action='store_true', help="Preview changes without replacing.")
-    parser.add_argument('--verbose', action='store_true', help="Verbose mode.")
-    parser.add_argument('--hidden', action='store_true', help="Apply to hidden files and folders.")
+    parser = argparse.ArgumentParser(
+        description="Bulk string replacer with optional full-path moves."
+    )
+    parser.add_argument('paths', nargs='+', help="Base directories to process.")
+    parser.add_argument('old_string', help="String or relative path to replace.")
+    parser.add_argument('-n', '--new', dest='new_string', default='',
+                        help="Replacement string or new relative path.")
+    parser.add_argument('-r', '--recursive', action='store_true',
+                        help="Recurse into subdirectories.")
+    parser.add_argument('-F', '--folders', action='store_true',
+                        help="Rename folder names.")
+    parser.add_argument('-f', '--files', action='store_true',
+                        help="Rename file names.")
+    parser.add_argument('-c', '--content', action='store_true',
+                        help="Replace inside file contents.")
+    parser.add_argument('-p', '--preview', action='store_true',
+                        help="Preview only; no changes.")
+    parser.add_argument('-P', '--path', dest='rename_paths', action='store_true',
+                        help="Treat old_string as path and move matching items.")
+    parser.add_argument('-y', '--yes', dest='auto_path', action='store_true',
+                        help="Skip prompts and apply default replacements.")
+    parser.add_argument('-v', '--verbose', action='store_true',
+                        help="Verbose mode.")
+    parser.add_argument('-H', '--hidden', action='store_true',
+                        help="Include hidden files and folders.")
 
     args = parser.parse_args()
 
-    # Use os.path.expanduser to expand the tilde to the home directory
-    expanded_paths = [os.path.expanduser(path) for path in args.paths]
+    if args.rename_paths and args.folders:
+        parser.error("Cannot use --path and --folders together.")
 
-    for path in expanded_paths:
-        print_verbose(f"Replacing in path: {path}",args.verbose)
-        process_directory(path, args.old_string, args.new_string, args.recursive, args.folder, args.files, args.content, args.preview, args.verbose, args.hidden)
+    base_paths = [os.path.expanduser(p) for p in args.paths]
+    for base in base_paths:
+        print_verbose(f"Processing: {base}", args.verbose)
+        process_directory(
+            base_path=base,
+            old_string=args.old_string,
+            new_string=args.new_string,
+            recursive=args.recursive,
+            rename_folders=args.folders,
+            rename_files=args.files,
+            replace_in_content=args.content,
+            preview=args.preview,
+            verbose=args.verbose,
+            include_hidden=args.hidden,
+            rename_paths=args.rename_paths,
+            auto_path=args.auto_path
+        )
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     main()
-

test.py

@@ -0,0 +1,212 @@
+#!/usr/bin/env python3
+import os
+import shutil
+import tempfile
+import unittest
+import argparse
+
+from main import process_directory, replace_content, main as cli_main
+
+class TestBulkStringReplacer(unittest.TestCase):
+    def setUp(self):
+        # create isolated temp dir
+        self.base = tempfile.mkdtemp()
+
+    def tearDown(self):
+        shutil.rmtree(self.base)
+
+    def create_file(self, relpath, content=''):
+        full = os.path.join(self.base, relpath)
+        os.makedirs(os.path.dirname(full), exist_ok=True)
+        with open(full, 'w', encoding='utf-8') as f:
+            f.write(content)
+        return full
+
+    def test_test_prefix_extraction_prompt_no_auto(self):
+        # Setup a test file with test_ prefix
+        src = self.create_file('dir/test_module.py', 'print("hello")')
+        # Monkeypatch input to simulate 'y'
+        inputs = iter(['y'])
+        original_input = __builtins__['input']
+        __builtins__['input'] = lambda _: next(inputs)
+        try:
+            process_directory(
+                base_path=self.base,
+                old_string='module',
+                new_string='module_new',
+                recursive=True,
+                rename_folders=False,
+                rename_files=False,
+                replace_in_content=False,
+                preview=False,
+                verbose=False,
+                include_hidden=True,
+                rename_paths=True,
+                auto_path=False
+            )
+        finally:
+            __builtins__['input'] = original_input
+
+        # After extraction, expect dir/module/test_module_new.py
+        dst = os.path.join(self.base, 'dir', 'module', 'test_module_new.py')
+        self.assertTrue(os.path.exists(dst))
+
+    def test_test_prefix_default_no_extraction_auto(self):
+        # Setup a test file with test_ prefix
+        src = self.create_file('dir/test_file.py', 'print("hello")')
+        process_directory(
+            base_path=self.base,
+            old_string='file',
+            new_string='file_new',
+            recursive=True,
+            rename_folders=False,
+            rename_files=False,
+            replace_in_content=False,
+            preview=False,
+            verbose=False,
+            include_hidden=True,
+            rename_paths=True,
+            auto_path=True
+        )
+        # With auto_path, should do simple path replace: dir/test_file.py -> dir/test_file_new.py
+        dst = os.path.join(self.base, 'dir', 'test_file_new.py')
+        self.assertTrue(os.path.exists(dst))
+
+
+    def test_replace_content(self):
+        f = self.create_file('foo.txt', 'hello OLD world')
+        replace_content(f, 'OLD', 'NEW', preview=False, verbose=False)
+        with open(f, 'r', encoding='utf-8') as fp:
+            self.assertIn('hello NEW world', fp.read())
+
+    def test_rename_file(self):
+        f = self.create_file('OLDfile.txt', '')
+        process_directory(
+            base_path=self.base,
+            old_string='OLD', new_string='NEW',
+            recursive=False,
+            rename_folders=False, rename_files=True,
+            replace_in_content=False,
+            preview=False, verbose=False,
+            include_hidden=True, rename_paths=False, auto_path=True
+        )
+        self.assertTrue(os.path.exists(os.path.join(self.base, 'NEWfile.txt')))
+        self.assertFalse(os.path.exists(f))
+
+    def test_rename_folder(self):
+        os.makedirs(os.path.join(self.base, 'OLDfolder', 'x'))
+        process_directory(
+            base_path=self.base,
+            old_string='OLD', new_string='NEW',
+            recursive=False,
+            rename_folders=True, rename_files=False,
+            replace_in_content=False,
+            preview=False, verbose=False,
+            include_hidden=True, rename_paths=False, auto_path=True
+        )
+        self.assertTrue(os.path.isdir(os.path.join(self.base, 'NEWfolder')))
+        self.assertFalse(os.path.isdir(os.path.join(self.base, 'OLDfolder')))
+
+    def test_full_path_move(self):
+        cfg = 'vars/configuration.yml'
+        full = self.create_file(cfg, 'DATA')
+        process_directory(
+            base_path=self.base,
+            old_string='vars/configuration.yml',
+            new_string='config/main.yml',
+            recursive=True,
+            rename_folders=False, rename_files=False,
+            replace_in_content=False,
+            preview=False, verbose=False,
+            include_hidden=True, rename_paths=True, auto_path=True
+        )
+        self.assertFalse(os.path.exists(full))
+        self.assertTrue(os.path.exists(os.path.join(self.base, 'config', 'main.yml')))
+
+    def test_path_and_folders_conflict(self):
+        parser = argparse.ArgumentParser()
+        parser.add_argument('-P', dest='rename_paths', action='store_true')
+        parser.add_argument('-F', dest='folders', action='store_true')
+        args = parser.parse_args(['-P', '-F'])
+        with self.assertRaises(SystemExit):
+            if args.rename_paths and args.folders:
+                parser.error("Cannot use --path and --folders together.")
+
+    def test_preview_does_nothing(self):
+        f = self.create_file('OLD.txt', 'OLD')
+        os.makedirs(os.path.join(self.base, 'OLDdir'))
+        process_directory(
+            base_path=self.base,
+            old_string='OLD', new_string='NEW',
+            recursive=True,
+            rename_folders=True, rename_files=True,
+            replace_in_content=True,
+            preview=True, verbose=False,
+            include_hidden=True, rename_paths=True, auto_path=True
+        )
+        self.assertTrue(os.path.exists(f))
+        self.assertTrue(os.path.isdir(os.path.join(self.base, 'OLDdir')))
+        with open(f, 'r', encoding='utf-8') as fp:
+            self.assertIn('OLD', fp.read())
+
+    def test_module_path_replacement_in_python_files(self):
+        content = 'from old/path import func'
+        src = self.create_file('old/path/module.py', content)
+        process_directory(
+            base_path=self.base,
+            old_string='old/path', new_string='old.path',
+            recursive=True,
+            rename_folders=False, rename_files=False,
+            replace_in_content=False,
+            preview=False, verbose=False,
+            include_hidden=True, rename_paths=True, auto_path=True
+        )
+        new_path = os.path.join(self.base, 'old.path', 'module.py')
+        self.assertTrue(os.path.exists(new_path))
+        with open(new_path, 'r', encoding='utf-8') as fp:
+            self.assertIn('from old.path import func', fp.read())
+
+    def test_non_python_files_are_not_content_updated(self):
+        content = 'some reference to old/path in text'
+        txt = self.create_file('old/path/readme.txt', content)
+        process_directory(
+            base_path=self.base,
+            old_string='old/path', new_string='old.path',
+            recursive=True,
+            rename_folders=False, rename_files=False,
+            replace_in_content=False,
+            preview=False, verbose=False,
+            include_hidden=True, rename_paths=True, auto_path=True
+        )
+        new_txt = os.path.join(self.base, 'old.path', 'readme.txt')
+        self.assertTrue(os.path.exists(new_txt))
+        with open(new_txt, 'r', encoding='utf-8') as fp:
+            self.assertIn('old/path', fp.read())
+
+    def test_auto_path_line_level_replacement(self):
+        # create a Python file with two occurrences
+        lines = [
+            'import a\n',
+            'path = "old/path/to/module"\n',
+            'print("old/path/example")\n'
+        ]
+        py = self.create_file('old/path/test.py', ''.join(lines))
+        process_directory(
+            base_path=self.base,
+            old_string='old/path', new_string='new/path',
+            recursive=True,
+            rename_folders=False, rename_files=False,
+            replace_in_content=False,
+            preview=False, verbose=False,
+            include_hidden=True, rename_paths=True, auto_path=True
+        )
+        new_py = os.path.join(self.base, 'new', 'path', 'test.py')
+        self.assertTrue(os.path.exists(new_py))
+        with open(new_py, 'r', encoding='utf-8') as fp:
+            content = fp.read()
+            # all replaced slash-based
+            self.assertIn('path = "new/path/to/module"', content)
+            self.assertIn('print("new/path/example")', content)
+
+if __name__ == '__main__':
+    unittest.main()