def METHOD_NAME(mocker):
    from superset.daos.tag import TagDAO
    from superset.exceptions import MissingUserContextException
    # Mock the behavior of TagDAO and g
    mock_session = mocker.patch("superset.daos.tag.db.session")
    mock_TagDAO = mocker.patch("superset.daos.tag.TagDAO")
    mock_tag = mocker.MagicMock(users_favorited=[])
    mock_TagDAO.find_by_id.return_value = mock_tag
    mock_g = mocker.patch("superset.daos.tag.g")  # Replace with the actual path to g
    # Test that exception is raised when commit fails
    mock_session.commit.side_effect = Exception("DB Error")
    with pytest.raises(Exception):
        TagDAO.remove_user_favorite_tag(1)