test_cases = [
    {
        "predictions": [[0.1, 0.1], [1, 0.1]],
        "references": [[0.1, 0.1], [0.9, 0.1]],
        "result": 1.0
    },
    {
        "predictions": [[0, 1], [0, 0]],
        "references": [[0, 0], [-1, -1]],
        "result": 0.2
    }
]