diff --git a/cogs/info.py b/cogs/info.py
index 79ad3d2..40a15b0 100644
--- a/cogs/info.py
+++ b/cogs/info.py
@@ -1,8 +1,10 @@
 import os
+
 import disnake
 import psutil
-
+from disnake import ApplicationCommandInteraction
 from disnake.ext import commands
+
 from __init__ import version_info as ver
 from lib.Comands import determine_prefix
 from lib.Logger import logger
@@ -18,7 +20,7 @@ class BotInfo(commands.Cog, name='Bot Info'):
 
     @commands.slash_command(name="info_bot",
                             description='Shows general info about bot')  # this is for making a command
-    async def info_bot(self, inter: disnake.ApplicationCommandInteraction):
+    async def info_bot(self, inter: ApplicationCommandInteraction):
         _pid = os.getpid()
         _process = psutil.Process(_pid)
         emb = disnake.Embed(
diff --git a/lib/CogsPrep.py b/lib/CogsPrep.py
index 9b6ef9c..05283f6 100644
--- a/lib/CogsPrep.py
+++ b/lib/CogsPrep.py
@@ -7,14 +7,11 @@ work_with_cogs: loads, reloads and unloads cogs files
 
 """
 from os import listdir, rename
-from typing import List
-
-from disnake.ext import commands
 
 from .Logger import logger
 
 
-async def cog_list(fold: str = './cogs') -> List[str]:
+async def cog_list(fold: str = './cogs') -> list:
     cogs_list = []
     for _filename in listdir(fold):
         if _filename.endswith('.py'):
@@ -22,11 +19,11 @@ async def cog_list(fold: str = './cogs') -> List[str]:
     return cogs_list
 
 
-async def work_with_cogs(what_do, bot: commands.Bot, cog):
+async def work_with_cogs(what_do, bot, cog):
     if isinstance(cog, str):
         cog = cog.split()
     for _filename in cog:
-        if what_do == "load":
+        if what_do == "lad":
             bot.load_extension(f'cogs.{_filename}')
             logger.info(f'Loaded cog {_filename}')
         elif what_do == 'unload':
@@ -37,7 +34,6 @@ async def work_with_cogs(what_do, bot: commands.Bot, cog):
             logger.info(f'Cog {_filename} reloaded')
         elif what_do == 'disable':
             bot.unload_extension(f'cogs.{_filename}')
-            rename(f'cogs/{_filename}.py', f'cogs/disabled/{_filename}.py')
             logger.info(f'Cog {_filename} stopped and disabled')
         elif what_do == 'enable':
             rename(f'cogs/disabled/{_filename}.py', f'cogs/{_filename}.py')
diff --git a/lib/Comands.py b/lib/Comands.py
index 8a66794..c4eac96 100644
--- a/lib/Comands.py
+++ b/lib/Comands.py
@@ -2,6 +2,8 @@
 lib.Commands
 ~~~~~~~~~~~~~~
 Some prepare for commands
+
+
 """
 from json import load, decoder, dump, JSONDecodeError
 from os import getenv
diff --git a/requirements.txt b/requirements.txt
index 330d6fb..1a0fe09 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,5 @@ disnake[audio]
 psutil
 python-dotenv
 yandex-music
+pytest
+pytest-asyncio
\ No newline at end of file
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_bot.py b/tests/test_bot.py
new file mode 100644
index 0000000..2059b15
--- /dev/null
+++ b/tests/test_bot.py
@@ -0,0 +1,45 @@
+import tracemalloc
+
+from disnake import Intents
+from disnake.ext import commands
+
+tracemalloc.start()
+
+intents = Intents(messages=True,
+                  message_content=True,
+                  )
+
+
+class Cog(commands.Cog):
+    @commands.command()
+    async def my_cmd(self, ctx):
+        pass
+
+
+class CogTwo(commands.Cog):
+    async def bot_check(self, ctx) -> bool:
+        pass
+
+
+class CogThree(commands.Cog):
+    async def bot_check_once(self, ctx) -> bool:
+        pass
+
+
+class CogFour(commands.Cog):
+    async def bot_slash_command_check(self, ctx) -> bool:
+        pass
+
+
+class CogFive(commands.Cog):
+    async def can_run(self, ctx) -> bool:
+        pass
+
+
+def test_bot():
+    bot = commands.Bot(command_prefix='$', intents=intents)
+    bot.add_cog(Cog())
+    bot.add_cog(CogTwo())
+    bot.add_cog(CogThree())
+    bot.add_cog(CogFour())
+    bot.add_cog(CogFive())
diff --git a/tests/test_lib_Cog.py b/tests/test_lib_Cog.py
new file mode 100644
index 0000000..46e23d5
--- /dev/null
+++ b/tests/test_lib_Cog.py
@@ -0,0 +1,70 @@
+import asyncio
+import inspect
+import os
+import tracemalloc
+from unittest.mock import AsyncMock, patch
+
+import pytest
+from disnake.ext import commands
+
+from ..lib.Logger import logger
+
+tracemalloc.start()
+
+pytest_plugins = ('pytest_asyncio',)
+
+
+def asyncio_run(async_func):
+    def wrapper(*args, **kwargs):
+        return asyncio.run(async_func(*args, **kwargs))
+
+    wrapper.__signature__ = inspect.signature(async_func)  # without this, fixtures are not injected
+
+    return wrapper
+
+
+absolute_path = os.path.dirname(__file__)
+relative_path = "../cogs"
+full_path = os.path.join(absolute_path, relative_path)
+return_value = ['cog1', 'cog2']
+
+bot = commands.InteractionBot()
+logger = logger
+
+
+@pytest.fixture(params=['cog1', 'cog2'])
+def mock_cog_list(mocker):
+    async_mock = AsyncMock()
+    mocker.patch('discord_bot.lib.CogsPrep.cog_list', return_value=async_mock)
+    return async_mock
+
+
+@pytest.fixture(params=['load',
+                        'unload',
+                        'reload',
+                        'enable',
+                        'disable'])
+def mock_work_with_cogs(mocker, mock_cog_list):
+    mock_cog_list.return_value = return_value
+    result = asyncio.run(mock_cog_list(full_path))
+
+    async_mock = AsyncMock()
+    mocker.patch('discord_bot.lib.CogsPrep.work_with_cogs', params=async_mock)
+    return async_mock
+
+
+@pytest.mark.asyncio
+async def test_cog_list(mock_cog_list):
+    # Assuming there are two .py files in the folder
+    mock_cog_list.return_value = return_value
+    result = await mock_cog_list(full_path)
+    assert result == return_value
+
+
+@patch('discord_bot.lib.CogsPrep.work_with_cogs', return_value=return_value)
+@pytest.mark.asyncio
+async def test_work_with_cogs(mock_work_with_cogs):
+    var = mock_work_with_cogs
+    result = await mock_work_with_cogs()
+    # Check if the logger was called once with a message indicating that cog1 has been loaded
+    assert result