Extend lint test to test/ directory (#13247)

test/lang/test_anthropic_backend.py

@@ -1,4 +1,3 @@
-import json
 import unittest
 
 from sglang import Anthropic, set_default_backend

test/lang/test_litellm_backend.py

@@ -1,4 +1,3 @@
-import json
 import unittest
 
 from sglang import LiteLLM, set_default_backend

test/lang/test_separate_reasoning.py

@@ -7,7 +7,7 @@ python3 -m unittest test/lang/test_separate_reasoning.py
 
 import unittest
 
-from sglang import assistant, gen, separate_reasoning, user
+from sglang import gen, separate_reasoning
 from sglang.lang.ir import SglExprList, SglSeparateReasoning
 from sglang.test.test_utils import CustomTestCase
 

test/lang/test_separate_reasoning_execution.py

@@ -6,11 +6,9 @@ python3 -m unittest test/lang/test_separate_reasoning_execution.py
 """
 
 import threading
-import time
 import unittest
 from unittest.mock import MagicMock, patch
 
-from sglang import assistant, gen, separate_reasoning, user
 from sglang.lang.interpreter import StreamExecutor
 from sglang.lang.ir import SglGen, SglSeparateReasoning
 from sglang.test.test_utils import CustomTestCase