def test_del3():
d = ScalarDistribution([1 / 2, 1 / 2])
with pytest.raises(InvalidOutcome):
d.__delitem__(2)
def test_setitem2():
pmf = [1 / 2, 1 / 2]
d = ScalarDistribution(pmf)
with pytest.raises(InvalidOutcome):
d.__setitem__(2, 1 / 2)
def test_del2():
d = ScalarDistribution([1 / 2, 1 / 2])
d.make_dense()
del d[1]
d.normalize()
assert d[0] == pytest.approx(1)
