def test_compute_element(self):
"""
Test :func:`~exa.cms.isotope.Isotope.element` and
:func:`~exa.cms.isotope.Meta.compute_element`.
"""
h = Isotope.element("H")
hh = Isotope.element("hydrogen")
o = Isotope.element("O")
u = Isotope.element("uranium")
self.assertTrue(np.isclose(h.mass, 1.0079105192))
self.assertEqual(hh.name, "hydrogen")
self.assertEqual(o.name, "oxygen")
self.assertEqual(u.name, "uranium")
def setUp(self):
"""Test is performed on hydrogen."""
iso = Isotope.to_frame()
self.isotopes = iso[iso['name'] == "hydrogen"]
