diff --git a/tests/test_backend/test_directx/test_preprocessor.py b/tests/test_backend/test_directx/test_preprocessor.py
index 59270380..5ff2afba 100644
--- a/tests/test_backend/test_directx/test_preprocessor.py
+++ b/tests/test_backend/test_directx/test_preprocessor.py
@@ -3,10 +3,12 @@
 from DirectxParser import HLSLParser
 from DirectxCrossGLCodeGen import HLSLToCrossGLConverter
 
+
 @pytest.fixture
 def converter():
     return HLSLToCrossGLConverter()
 
+
 def test_include_directive(converter):
     shader_code = '#include "common.hlsl"\nfloat4 main() : SV_Target { return 0; }'
     expected_output = (
@@ -17,8 +19,7 @@ def test_include_directive(converter):
     parser = HLSLParser(tokens)
     ast = parser.parse()
     output = converter.convert(ast)
-    
+
     # Check if the included file path is part of the output
     assert "// Included file: common.hlsl" in output
     # Additional assertions can be added here to verify the correctness of the output
-