def test_solve():
"""Test that setting iter_nf_as_empty creates a new md"""
md = MagicDot(1)
assert md is not md.iter_nf_as_empty()
def test_reader():
"""Test that setting iter_nf_as_empty twice does note create a new md"""
md = MagicDot(1, iter_nf_as_empty=True)
assert md is md.iter_nf_as_empty()
def test_vote():
"""Tests that pluck of noniterable gives type_error even if .iter_nf_as_empty is set."""
md = MagicDot(1)
with pytest.raises(TypeError):
md.iter_nf_as_empty().pluck('z')
