def test_sim_random_is_deterministic():
rnd1 = DefaultSimRandom(42)
values1 = [rnd1.integer(10, 50) for _ in range(100)]
rnd2 = DefaultSimRandom(42)
values2 = [rnd2.integer(10, 50) for _ in range(100)]
assert values1 == values2
def test_sim_random_is_repeatable_between_runs():
rnd = DefaultSimRandom()
values = [rnd.integer(0, 100) for _ in range(5)]
assert values == [49, 97, 53, 5, 33]
def test_sim_random_shuffles():
rnd = DefaultSimRandom()
values = [rnd.integer(10, 50) for _ in range(100)]
shuffled = rnd.shuffle(values)
assert values != shuffled
def test_sim_random_generates_integers_in_required_range():
rnd = DefaultSimRandom()
values = [rnd.integer(10, 50) for _ in range(100)]
assert all(10 <= v <= 50 for v in values)
def test_sim_random_generates_strings_of_requried_length():
rnd = DefaultSimRandom()
lengths = [rnd.integer(0, 10) for _ in range(100)]
values = [(rnd.string(_len), _len) for _len in lengths]
assert all(len(s) == l for s, l in values)