def test_elt_simple(self):
Alphabet.objects.create(a=2)
ab = Alphabet.objects.annotate(elt=ELT("a", ["apple", "orange"])).get()
assert ab.elt == "orange"
ab = Alphabet.objects.annotate(elt=ELT("a", ["apple"])).get()
assert ab.elt is None
def test_elt_simple(self):
Alphabet.objects.create(a=2)
ab = Alphabet.objects.annotate(elt=ELT('a', ['apple', 'orange'])).get()
assert ab.elt == 'orange'
ab = Alphabet.objects.annotate(elt=ELT('a', ['apple'])).get()
assert ab.elt is None
def test_elt_expression(self):
Alphabet.objects.create(a=1)
ab = Alphabet.objects.annotate(
elt=ELT("a", [Value("apple"), Value("orange")])).get()
assert ab.elt == "apple"