def test_predict_pdf_works(predictor, test_pdf):
    # FIXME ugly test since there are '\n's in the dict with unknown heritage
    predictions, metadata = predictor.predict_pdf(test_pdf)
    predictions = [p for p in predictions][0]
    assert predictions["class"] == "formula"
    probabilities = predictions["probabilities"]
    # Floating point precision problem for output so test only that keys exist not the values
    assert all(key in probabilities for key in ("formula", "other", "signature", "logo"))
    metadata = list(metadata)
    metadata = dict(**metadata[0])
    metadata.pop("document_filename")  # temp filename cannot be tested
    assert metadata == {
        "px_width": 389.0,
        "px_height": 389.0,
        "width": 194.49999000000003,
        "height": 194.49998999999997,
        "x1": 320.861,
        "x2": 515.36099,
        "y1": 347.699,
        "y2": 542.19899,
        "page_width": 595.2800000000001,
        "page_height": 841.89,
        "page_rotation": 0,
        "page_idx": 1,
        "n_pages": 3,
    }