def test_single_space_sample():
assert not Space(a=1).has_stochastic
assert not Space(a=1, b=Grid(1, 2)).has_stochastic
assert Space(a=1, b=[Grid(1, 2), Rand(0.0, 1.0)]).has_stochastic
dicts = list(Space(a=1, b=Grid(1, 2)).sample(100))
assert 2 == len(dicts)
dicts = list(Space(a=1, b=RandInt(1, 2)).sample(100))
assert 100 == len(dicts)
space = Space(a=1, b=[Grid(1, 2), Rand(0.0, 1.0)], c=Choice("a", "b"))
assert list(space.sample(5, 0)) == list(space.sample(5, 0))
assert list(space.sample(5, 0)) != list(space.sample(5, 1))
dicts = list(space.sample(5, 0))
assert 10 == len(dicts)
assert 5 == len(set(d.template["b"][1] for d in dicts))
def test_single_space_sample():
assert not Space(a=1).has_random_parameter
assert not Space(a=1, b=Grid(1, 2)).has_random_parameter
assert Space(a=1, b=[Grid(1, 2), Rand(0.0, 1.0)]).has_random_parameter
dicts = list(Space(a=1, b=Grid(1, 2)).sample(100))
assert 2 == len(dicts)
space = Space(a=1, b=[Grid(1, 2), Rand(0.0, 1.0)], c=Choice("a", "b"))
ec = list(space.encode())
assert list(space.sample(5, 0)) == list(space.sample(5, 0))
assert list(space.sample(5, 0)) != list(space.sample(5, 1))
dicts = list(space.sample(5, 0))
assert 10 == len(dicts)
assert 5 == len(set(d["b"][1] for d in dicts))
assert ec == list(
space.encode()) # make sure the instance value was not altered