[model-bakers#329] (WIP) Initial issue example model and test setup

tests/conftest.py

@@ -71,6 +71,7 @@ def pytest_configure():
         # Set the version explicitly otherwise Django does extra queries
         # to get the version via SQL when using POSTGIS
         POSTGIS_VERSION=postgis_version,
+        ROOT_URLCONF="tests.generic.urls"
     )
 
     from model_bakery import baker

tests/generic/models.py

@@ -478,3 +478,14 @@ class Issue291Model3(models.Model):
         Issue291Model2, related_name="bazs", on_delete=models.CASCADE
     )
     name = models.CharField(max_length=32)
+
+
+# Testing out an issue (https://github.com/model-bakers/model_bakery/issues/329).
+# Same situation as the above.
+class Issue329ModelA(models.Model):
+    pass
+
+
+class Issue329ModelB(models.Model):
+    types = models.ManyToManyField(Issue329ModelA)
+    subtypes = models.ManyToManyField(Issue329ModelA)

tests/generic/urls.py

@@ -0,0 +1,7 @@
+from django.urls import include, path
+
+from tests.generic.views import issue329_view
+
+urlpatterns = [
+    path('issue-329/', issue329_view, name='issue-329'),
+]

tests/generic/views.py

@@ -0,0 +1,6 @@
+from django.views import View
+from django.http import HttpResponse
+
+
+def issue329_view(_request):
+    return HttpResponse(content='Issue 329', status=200)

tests/test_issues.py

@@ -0,0 +1,31 @@
+import pytest
+
+from django.urls import reverse
+from django.test import Client
+
+from model_bakery import baker
+from tests.generic.models import Issue329ModelA, Issue329ModelB
+
+
+@pytest.fixture()
+def site_b():
+    return baker.make(Issue329ModelB)
+
+
+@pytest.mark.django_db
+def test_issue_329(site_b):
+    instances = (
+        record for record, _created in (
+            Issue329ModelA.objects.get_or_create(id=1),
+            Issue329ModelA.objects.get_or_create(id=2)
+        )
+    )
+
+    site_b.types.add(*instances)
+    client = Client()
+    url = reverse('issue-329')
+
+    resp = client.get(url)
+
+    assert resp.status_code == 200
+    assert resp.content == b'Issue 329'