Test Django class based view (#227)

Following #226, test the trace names for Django class-based views. Although they are good as-is and aren't changing, I wanted to add tests to check that future changes such as #102 don't make them worse.

tests/integration/django_app.py

@@ -64,6 +64,7 @@
     from django.http import HttpResponse
     from django.template import engines
     from django.utils.functional import SimpleLazyObject
+    from django.views.generic import View
 
 
 def home(request):
@@ -78,6 +79,11 @@ def crash(request):
     raise ValueError("BØØM!")  # non-ASCII
 
 
+class CbvView(View):
+    def get(self, request):
+        return HttpResponse("Hello getter")
+
+
 def sql(request):
     with connection.cursor() as cursor:
         cursor.execute("CREATE TABLE IF NOT EXISTS test(item)")
@@ -110,6 +116,7 @@ def urlpatterns():
             path("", home),
             path("hello/", hello),
             path("crash/", crash),
+            path("cbv/", CbvView.as_view()),
             path("sql/", sql),
             path("template/", template),
             path("admin/", admin.site.urls),
@@ -121,6 +128,7 @@ def urlpatterns():
             url(r"^$", home),
             url(r"^hello/$", hello),
             url(r"^crash/$", crash),
+            url(r"^cbv/$", CbvView.as_view()),
             url(r"^sql/$", sql),
             url(r"^template/$", template),
             url(r"^admin/", admin.site.urls),

tests/integration/test_django.py

@@ -122,8 +122,8 @@ def test_user_ip(headers, extra_environ, expected, tracked_requests):
 def test_hello(tracked_requests):
     with app_with_scout() as app:
         response = TestApp(app).get("/hello/")
-        assert response.status_int == 200
 
+    assert response.status_int == 200
     assert len(tracked_requests) == 1
     spans = tracked_requests[0].complete_spans
     assert [s.operation for s in spans] == [
@@ -167,6 +167,19 @@ def test_server_error(tracked_requests):
     assert operations == expected_operations
 
 
+def test_cbv(tracked_requests):
+    with app_with_scout() as app:
+        response = TestApp(app).get("/cbv/")
+
+    assert response.status_int == 200
+    assert len(tracked_requests) == 1
+    spans = tracked_requests[0].complete_spans
+    assert [s.operation for s in spans] == [
+        "Controller/tests.integration.django_app.CbvView",
+        "Middleware",
+    ]
+
+
 def test_sql(tracked_requests):
     with app_with_scout() as app:
         response = TestApp(app).get("/sql/")