Function test_deprecation

lib/matplotlib/tests/test_rcparams.py:603–607

(monkeypatch)

def test_deprecation(monkeypatch):
    mpl.rcParams.update(mpl.rcParams.copy())  # Doesn't warn.
    # Note that the warning suppression actually arises from the
    # iteration over the updater rcParams being protected by
    # suppress_matplotlib_deprecation_warning, rather than any explicit check.


@pytest.mark.parametrize("value", [