def test_chrange_basic(to):
fg = Dataset(np.arange(1, 1000, 1), np.sin(np.arange(1, 1000, 1)))
fg.chrange(current_unit="PHz", target_unit=to)
if to == "thz":
np.testing.assert_array_almost_equal(np.min(fg.x), 1000)
elif to == "ghz":
np.testing.assert_array_almost_equal(np.min(fg.x), 1000000)
def test_chrange_basic_noninplace(to):
fg = Dataset(np.arange(1, 1000, 1), np.sin(np.arange(1, 1000, 1)))
ifg = fg.chrange(current_unit="PHz", target_unit=to, inplace=False)
if to == "thz":
np.testing.assert_array_almost_equal(np.min(ifg.x), 1000)
elif to == "ghz":
np.testing.assert_array_almost_equal(np.min(ifg.x), 1000000)
np.testing.assert_array_equal(fg.x, np.arange(1, 1000, 1))
def test_chrange_errors():
fg = Dataset(np.arange(1, 1000, 1), np.sin(np.arange(1, 1000, 1)))
with pytest.raises(ValueError):
fg.chrange(current_unit="PHz", target_unit="undefined")
