Pytest: Mocking random numbes
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'