test: format test suite

tests/test_cwe94_debug_exec.py

@@ -15,22 +15,12 @@ import pathlib
 # Resolve project root (one level up from tests/)
 _PROJECT_ROOT = pathlib.Path(__file__).resolve().parent.parent
 
-VULN_FILE = (
-    _PROJECT_ROOT
-    / "src"
-    / "langbot"
-    / "pkg"
-    / "api"
-    / "http"
-    / "controller"
-    / "groups"
-    / "system.py"
-)
+VULN_FILE = _PROJECT_ROOT / 'src' / 'langbot' / 'pkg' / 'api' / 'http' / 'controller' / 'groups' / 'system.py'
 
 
 def test_no_exec_call_in_system_controller():
     """Verify there is no exec() call in system.py that takes user input."""
-    with open(VULN_FILE, "r") as f:
+    with open(VULN_FILE, 'r') as f:
         source = f.read()
 
     tree = ast.parse(source)
@@ -40,27 +30,26 @@ def test_no_exec_call_in_system_controller():
         if isinstance(node, ast.Call):
             func = node.func
             # Match bare exec() call
-            if isinstance(func, ast.Name) and func.id == "exec":
+            if isinstance(func, ast.Name) and func.id == 'exec':
                 exec_calls.append(node.lineno)
 
     assert len(exec_calls) == 0, (
-        f"Found exec() call(s) at line(s) {exec_calls} in system.py. "
-        "User-supplied code must never be passed to exec()."
+        f'Found exec() call(s) at line(s) {exec_calls} in system.py. User-supplied code must never be passed to exec().'
     )
 
 
 def test_no_debug_exec_route():
     """Verify the /debug/exec route is not registered."""
-    with open(VULN_FILE, "r") as f:
+    with open(VULN_FILE, 'r') as f:
         source = f.read()
 
-    assert "debug/exec" not in source, (
-        "The /debug/exec route still exists in system.py. "
-        "This endpoint allows arbitrary code execution and must be removed."
+    assert 'debug/exec' not in source, (
+        'The /debug/exec route still exists in system.py. '
+        'This endpoint allows arbitrary code execution and must be removed.'
     )
 
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     test_no_exec_call_in_system_controller()
     test_no_debug_exec_route()
-    print("All tests passed!")
+    print('All tests passed!')