Test showing stream failure

tests/test_http_stream.py

@@ -0,0 +1,43 @@
+import asyncio
+
+import pytest
+
+from channels.generic.http import AsyncHttpConsumer
+from channels.testing import HttpCommunicator
+
+
+@pytest.mark.asyncio
+async def test_async_http_consumer():
+    """
+    Tests that AsyncHttpConsumer is implemented correctly.
+    """
+
+    class TestConsumer(AsyncHttpConsumer):
+        async def handle(self, body):
+            self.is_streaming = True
+            await self.send_headers(
+                headers=[
+                    (b"Cache-Control", b"no-cache"),
+                    (b"Content-Type", b"text/event-stream"),
+                    (b"Transfer-Encoding", b"chunked"),
+                ]
+            )
+            asyncio.get_event_loop().create_task(self.stream())
+
+        async def stream(self):
+            for n in range(0, 3):
+                if not self.is_streaming:
+                    break
+                payload = "data: %d\n\n" % (n + 1)
+                await self.send_body(payload.encode("utf-8"), more_body=True)
+                await asyncio.sleep(0.2)
+            await self.send_body(b"")
+
+        async def disconnect(self):
+            self.is_streaming = False
+
+    # Open a connection
+    communicator = HttpCommunicator(TestConsumer, method="GET", path="/test/", body=b"")
+    response = await communicator.get_response()
+    assert response["body"] == b"data: 1\n\ndata: 2\n\ndata: 3\n\n"
+    assert response["status"] == 200