[Bug]: test_save_figure_return seems flaky #30493
Description
Bug summary
When building on Fedora builders, I often get this failure, though it is not consistent and I've never had it happen locally.
Code for reproduction
pytest tests/test_backend_qt.py -k test_save_figure_returnActual outcome
___________________________ test_save_figure_return ____________________________
[gw2] linux -- Python 3.14.0 /usr/bin/python3
@pytest.mark.backend('QtAgg', skip_on_importerror=True)
def test_save_figure_return():
fig, ax = plt.subplots()
ax.imshow([[1]])
prop = "matplotlib.backends.qt_compat.QtWidgets.QFileDialog.getSaveFileName"
with mock.patch(prop, return_value=("foobar.png", None)):
fname = fig.canvas.manager.toolbar.save_figure()
> os.remove("foobar.png")
E FileNotFoundError: [Errno 2] No such file or directory: 'foobar.png'
../BUILDROOT/usr/lib64/python3.14/site-packages/matplotlib/tests/test_backend_qt.py:228: FileNotFoundError
Expected outcome
Tests always pass.
Additional information
No response
Operating system
No response
Matplotlib Version
3.10.6
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
from source (.tar.gz)