How should a test be written for a delegate for editing?

I have a tree view for which some fields need to use a custom delegate for editing. The delegate presents a QListView for value selection. It seems like the QAbstractItemView.edit() method should be used to initiate the edit from the test but I can't figure out how to get access to the created editor (a QListView) so I can select the proper element for the test.

This is part of a test I had working with a QComboBox delegate before switching to the QListVew, but it seems too manual.

for index, enumerator in enumerate(group.children):
    editor = delegate.createEditor(
        parent=viewport,
        option=None,
        index=target_index,
    )

    editor.setCurrentIndex(index)
    delegate.setModelData(editor, model, target_index)
    assert enumerator.uuid == item.enumeration_uuid

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