def test_hz_to_period_throws_if_zero_or_less():
# This is a bit magic-looking, but all it is saying is that
# the test will pass if code inside the `with` block raises a ValueError!
with pytest.raises(ValueError):
toymir.hz_to_period(0)
def test_hz_to_period_float():
expected = 0.1
assert toymir.hz_to_period(10) == expected
def test_hz_to_period_array():
expected = [0.1, 0.01, 0.001]
assert np.allclose(toymir.hz_to_period([10, 100, 1000]), expected)
def test_hz_to_period_throws_of_zero_or_less():
with pytest.raises(ValueError):
toymir.hz_to_period(0)
