Fix unit test with missing requirements

etc/unittest/backend.py

@@ -3,6 +3,7 @@ import asyncio
 from unittest.mock import MagicMock
 from .mocks import ProviderMock
 import g4f
+from g4f.errors import MissingRequirementsError
 
 try:
     from g4f.gui.server.backend import Backend_Api, get_error_message
@@ -34,9 +35,11 @@ class TestBackendApi(unittest.TestCase):
         self.assertTrue(len(response) > 0)
 
     def test_search(self):
-        # Task was destroyed but it is pending!
         from g4f.gui.server.internet import search
-        result = asyncio.run(search("Hello"))
+        try:
+            result = asyncio.run(search("Hello"))
+        except MissingRequirementsError:
+            self.skipTest("search is not installed")
         self.assertEqual(5, len(result))
 
 class TestUtilityFunctions(unittest.TestCase):

g4f/webdriver.py

@@ -10,6 +10,7 @@ try:
     from selenium.webdriver.support import expected_conditions as EC
     from selenium.webdriver.common.keys import Keys
     from selenium.common.exceptions import NoSuchElementException
+    from undetected_chromedriver import Chrome, ChromeOptions
     has_requirements = True
 except ImportError:
     from typing import Type as WebDriver, Callable as user_config_dir
@@ -44,7 +45,6 @@ try:
             super().__init__(*args, options=options, **kwargs)
     has_seleniumwire = True
 except:
-    from undetected_chromedriver import Chrome, ChromeOptions
     has_seleniumwire = False
 
 def get_browser(