style: Sort imports and add whitespace in test_exceptions.py

tests/basic/test_exceptions.py

@@ -1,23 +1,28 @@
 import pytest
-from aider.exceptions import LiteLLMExceptions, ExInfo
+
+from aider.exceptions import ExInfo, LiteLLMExceptions
+
 
 def test_litellm_exceptions_load():
     """Test that LiteLLMExceptions loads without errors"""
     ex = LiteLLMExceptions()
     assert len(ex.exceptions) > 0
 
+
 def test_exceptions_tuple():
     """Test that exceptions_tuple returns a non-empty tuple"""
     ex = LiteLLMExceptions()
     assert isinstance(ex.exceptions_tuple(), tuple)
     assert len(ex.exceptions_tuple()) > 0
 
+
 def test_get_ex_info():
     """Test get_ex_info returns correct ExInfo"""
     ex = LiteLLMExceptions()
-    
+
     # Test with a known exception type
     from litellm import AuthenticationError
+
     auth_error = AuthenticationError()
     ex_info = ex.get_ex_info(auth_error)
     assert isinstance(ex_info, ExInfo)
@@ -28,6 +33,7 @@ def test_get_ex_info():
     # Test with unknown exception type
     class UnknownError(Exception):
         pass
+
     unknown = UnknownError()
     ex_info = ex.get_ex_info(unknown)
     assert isinstance(ex_info, ExInfo)
@@ -35,19 +41,23 @@ def test_get_ex_info():
     assert ex_info.retry is None
     assert ex_info.description is None
 
+
 def test_rate_limit_error():
     """Test specific handling of RateLimitError"""
     ex = LiteLLMExceptions()
     from litellm import RateLimitError
+
     rate_error = RateLimitError()
     ex_info = ex.get_ex_info(rate_error)
     assert ex_info.retry is True
     assert "rate limited" in ex_info.description.lower()
 
+
 def test_context_window_error():
     """Test specific handling of ContextWindowExceededError"""
     ex = LiteLLMExceptions()
     from litellm import ContextWindowExceededError
+
     ctx_error = ContextWindowExceededError()
     ex_info = ex.get_ex_info(ctx_error)
     assert ex_info.retry is False