import numpy as np
import pytest

from mapie.subsample import Subsample

def test_split_SubSample_different_amples() -> None:
    """Test that outputs of subsamplings are all different."""
    X = np.array([0, 1, 2, 3])
    cv = Subsample(n_resamplings=2, random_state=1)
    trains = [x[0] for x in cv.split(X)]
    tests = [x[1] for x in cv.split(X)]
    with np.testing.assert_raises(AssertionError):
         np.testing.assert_equal(trains[0], trains[1])
    with np.testing.assert_raises(AssertionError):
         np.testing.assert_equal(tests[0], tests[1])