dev(narugo): add embedding check

import numpy as np

import pytest

from PIL import Image

                'scores-top10-descriptions': 'scores-top10-descriptions',

                'scores-top5-definitions': 'scores-top5-definitions',

                'scores-top5-descriptions': 'scores-top5-descriptions',

                'embedding': 'embedding',

            }

        )

        assert results['scores-top10'] == pytest.approx({

            'screwdriver': 0.029927952215075493,

            'chain saw, chainsaw': 0.02070867270231247

        }, abs=1e-3)

        # np.save(get_testfile('png_640_emb.npy'), results['embedding'])

        assert results['embedding'].shape == (1280,)

        expected_embedding = np.load(get_testfile('png_640_emb.npy'))

        emb_1 = results['embedding'] / np.linalg.norm(results['embedding'], axis=-1, keepdims=True)

        emb_2 = expected_embedding / np.linalg.norm(expected_embedding, axis=-1, keepdims=True)

        emb_sims = (emb_1 * emb_2).sum()

        assert emb_sims >= 0.99, 'Direction not match with expected embedding.'

        assert np.linalg.norm(results['embedding']) == pytest.approx(np.linalg.norm(expected_embedding))