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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
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import pytest
import torch


@pytest.fixture(autouse=True)
def _no_grad():
    """Disable gradient computation for all dynamo-roundtrip tests.

    Using a fixture (rather than ``with torch.no_grad()`` inside the compiled
    function) avoids ``BEFORE_WITH`` / ``POP_EXCEPT`` bytecodes in
    Dynamo-generated resume functions, which the decompiler cannot handle.
    """
    prev = torch.is_grad_enabled()
    torch.set_grad_enabled(False)
    yield
    torch.set_grad_enabled(prev)