def test_average_non_iterable():
with pytest.raises(TypeError):
calc.avg(123)
def test_average_empty_iterable():
with pytest.raises(ZeroDivisionError):
calc.avg([])
def test_average_zero_limit():
assert calc.avg([-1, 0, 1], lower_bound=0) == 0.5
def test_average_outliers():
assert calc.avg([2, 5, 12, 98], lower_bound=0,
upper_bound=50) == pytest.approx(6.333, rel=0.01)
def test_average_range():
assert calc.avg(range(19)) == 9
def test_average_list():
assert calc.avg([2, 5, 12, 98]) == 29.25