Refs #31949 -- Made @csrf_exempt decorator to work with async functions.

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/decorators/test_csrf.py b/tests/decorators/test_csrf.py
new file mode 100644
index 0000000000..275b12ee9d
--- /dev/null
+++ b/tests/decorators/test_csrf.py
@@ -0,0 +1,37 @@
+from asgiref.sync import iscoroutinefunction
+
+from django.http import HttpRequest, HttpResponse
+from django.test import SimpleTestCase
+from django.views.decorators.csrf import csrf_exempt
+
+
+class CsrfExemptTests(SimpleTestCase):
+    def test_wrapped_sync_function_is_not_coroutine_function(self):
+        def sync_view(request):
+            return HttpResponse()
+
+        wrapped_view = csrf_exempt(sync_view)
+        self.assertIs(iscoroutinefunction(wrapped_view), False)
+
+    def test_wrapped_async_function_is_coroutine_function(self):
+        async def async_view(request):
+            return HttpResponse()
+
+        wrapped_view = csrf_exempt(async_view)
+        self.assertIs(iscoroutinefunction(wrapped_view), True)
+
+    def test_csrf_exempt_decorator(self):
+        @csrf_exempt
+        def sync_view(request):
+            return HttpResponse()
+
+        self.assertIs(sync_view.csrf_exempt, True)
+        self.assertIsInstance(sync_view(HttpRequest()), HttpResponse)
+
+    async def test_csrf_exempt_decorator_async_view(self):
+        @csrf_exempt
+        async def async_view(request):
+            return HttpResponse()
+
+        self.assertIs(async_view.csrf_exempt, True)
+        self.assertIsInstance(await async_view(HttpRequest()), HttpResponse)