4fd4659edaf98f34f839e7736ac09861f54a7eb7,tests/test_visualization.py,,test_get_optimization_history_plot,#,47

Before Change

        return 0.0

    // Test with a trial
    for i in range(3):
        study.optimize(lambda t: objective(t, i), n_trials=1)
    figure = _get_optimization_history_plot(study)
    assert len(figure.data) == 2
    assert tuple(figure.data[0].x) == (0, 1, 2)
    assert tuple(figure.data[0].y) == (1.0, 2.0, 0.0)

After Change

        raise ValueError

    study = create_study()
    study.optimize(fail_objective, n_trials=1)
    figure = _get_optimization_history_plot(study)
    assert len(figure.data) == 2

Instances