def test_instanciate_with_iter_wrong_len():
w, h = 4, 3
values = list(range(w * h - 2))
with pytest.raises(ValueError):
mygrid = Grid.from_iter(w, h, values)
def test_instanciate_with_gen():
w, h = 4, 3
values = range(w * h)
mygrid = Grid.from_iter(w, h, values)
assert mygrid[0] == [0, 1, 2, 3]
assert mygrid[1, :] == [1, 5, 9]
def test_instanciate_with_iter():
w, h = 4, 3
iterable = list(range(w * h))
mygrid = Grid.from_iter(w, h, iterable)
assert mygrid[0] == [0, 1, 2, 3]
assert mygrid[1, :] == [1, 5, 9]