conftest.py

import pytest
import random


@pytest.fixture
def make_rnd_gen():
    def _get_result(seed, mode):
        # Hint: use pytest.fixture
        if mode == 0:
            return random.Random(seed).randint(-1000, 1000)
        elif mode == 1:
            return random.Random(seed ** 2).randint(-1000, 1000)
        elif mode == 2:
            return random.Random(seed).randint(1, 50)
        elif mode == 3:
            return random.Random(seed ** 2).gauss(0, 5)
        else:
            return random.Random(seed).choice(range(10000))

    return _get_result