def test_amino_acid_can_be_made_from_multiple_recombinations(self):
aa = AminoAcidFactory()
r = RecombinationFactory()
r.amino_acid = aa
r.save()
r2 = RecombinationFactory()
r2.amino_acid = aa
r2.save()
self.assertEqual(r, aa.recombination_set.all()[0])
self.assertEqual(r2, aa.recombination_set.all()[1])
def test_recombinations_have_an_optional_amino_acid(self):
aa = AminoAcidFactory()
r = RecombinationFactory()
r.amino_acid = aa
r.save()
self.assertEqual(aa, r.amino_acid)
