diff options
| -rw-r--r-- | Lib/test/support/__init__.py | 9 | ||||
| -rw-r--r-- | Lib/test/test_ast.py | 6 |
2 files changed, 13 insertions, 2 deletions
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py index 34a9459..d17331e 100644 --- a/Lib/test/support/__init__.py +++ b/Lib/test/support/__init__.py @@ -1999,3 +1999,12 @@ def check_disallow_instantiation(testcase, tp, *args, **kwds): qualname = f"{name}" msg = f"cannot create '{re.escape(qualname)}' instances" testcase.assertRaisesRegex(TypeError, msg, tp, *args, **kwds) + +@contextlib.contextmanager +def infinite_recursion(max_depth=75): + original_depth = sys.getrecursionlimit() + try: + sys.setrecursionlimit(max_depth) + yield + finally: + sys.setrecursionlimit(original_depth) diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py index 6a6f06c..5f1ee75 100644 --- a/Lib/test/test_ast.py +++ b/Lib/test/test_ast.py @@ -1102,7 +1102,8 @@ Module( e = ast.UnaryOp(op=ast.Not(), lineno=0, col_offset=0) e.operand = e with self.assertRaises(RecursionError): - compile(ast.Expression(e), "<test>", "eval") + with support.infinite_recursion(): + compile(ast.Expression(e), "<test>", "eval") def test_recursion_indirect(self): e = ast.UnaryOp(op=ast.Not(), lineno=0, col_offset=0) @@ -1110,7 +1111,8 @@ Module( e.operand = f f.operand = e with self.assertRaises(RecursionError): - compile(ast.Expression(e), "<test>", "eval") + with support.infinite_recursion(): + compile(ast.Expression(e), "<test>", "eval") class ASTValidatorTests(unittest.TestCase): |