1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
import pytest
from tests.utils import assert_num_queries
from .models import ArtProject, ResearchProject
from .schema import schema
@pytest.mark.django_db(transaction=True)
def test_polymorphic_interface_query():
ap = ArtProject.objects.create(topic="Art", artist="Artist")
rp = ResearchProject.objects.create(topic="Research", supervisor="Supervisor")
query = """\
query {
projects {
edges {
node {
__typename
topic
... on ArtProjectType {
artist
}
... on ResearchProjectType {
supervisor
}
}
}
}
}
"""
# ContentType, base table, two subtables = 4 queries
with assert_num_queries(4):
result = schema.execute_sync(query)
assert not result.errors
assert result.data == {
"projects": {
"edges": [
{
"node": {
"__typename": "ArtProjectType",
"topic": ap.topic,
"artist": ap.artist,
}
},
{
"node": {
"__typename": "ResearchProjectType",
"topic": rp.topic,
"supervisor": rp.supervisor,
}
},
]
}
}
|
