Pytest: Mocking random numbes

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examples/pytest/random/test_app.py

import app

def test_game(monkeypatch):
    monkeypatch.setattr(app.random, 'randint', lambda x, y: 70)
    game = app.Game()
    print(game.hidden)
    response = game.guess(100)
    assert response == 'too big'

    response = game.guess(50)
    assert response == 'too small'

    response = game.guess(70)
    assert response == 'match'