Test 3: Checking array replacement...
Traceback (most recent call last):
  File "<stdin>", line 5, in <module>
  File "/home/llmeval/.local/share/uv/python/cpython-3.13.9-linux-x86_64-gnu/lib/python3.13/json/__init__.py", line 293, in load
    return loads(fp.read(),
        cls=cls, object_hook=object_hook,
        parse_float=parse_float, parse_int=parse_int,
        parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "/home/llmeval/.local/share/uv/python/cpython-3.13.9-linux-x86_64-gnu/lib/python3.13/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
           ~~~~~~~~~~~~~~~~~~~~~~~^^^
  File "/home/llmeval/.local/share/uv/python/cpython-3.13.9-linux-x86_64-gnu/lib/python3.13/json/decoder.py", line 345, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
               ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/llmeval/.local/share/uv/python/cpython-3.13.9-linux-x86_64-gnu/lib/python3.13/json/decoder.py", line 363, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)