problem_unittests.py 文件源码

def test_one_hot_encode(one_hot_encode):
    test_shape = np.random.choice(range(1000))
    test_numbers = np.random.choice(range(10), test_shape)
    one_hot_out = one_hot_encode(test_numbers)

    assert type(one_hot_out).__module__ == np.__name__,\
        'Not Numpy Object'

    assert one_hot_out.shape == (test_shape, 10),\
        'Incorrect Shape. {} shape found'.format(one_hot_out.shape)

    n_encode_tests = 5
    test_pairs = list(zip(test_numbers, one_hot_out))
    test_indices = np.random.choice(len(test_numbers), n_encode_tests)
    labels = [test_pairs[test_i][0] for test_i in test_indices]
    enc_labels = np.array([test_pairs[test_i][1] for test_i in test_indices])
    new_enc_labels = one_hot_encode(labels)

    assert np.array_equal(enc_labels, new_enc_labels),\
        'Encodings returned different results for the same numbers.\n' \
        'For the first call it returned:\n' \
        '{}\n' \
        'For the second call it returned\n' \
        '{}\n' \
        'Make sure you save the map of labels to encodings outside of the function.'.format(enc_labels, new_enc_labels)

    _print_success_message()