Added asgi dict to the lifespan scope (#754)

* Added asgi dict to the lifespan scope

* Added lifespan scope tests

tests/test_lifespan.py

@@ -144,3 +144,40 @@ async def test():
 
     loop = asyncio.new_event_loop()
     loop.run_until_complete(test())
+
+
+@pytest.mark.parametrize("mode", ("auto", "on"))
+def test_lifespan_scope_asgi3app(mode):
+    async def asgi3app(scope, receive, send):
+        assert scope == {"version": "3.0", "spec_version": "2.0"}
+
+    async def test():
+        config = Config(app=asgi3app, lifespan=mode)
+        lifespan = LifespanOn(config)
+
+        await lifespan.startup()
+        await lifespan.shutdown()
+
+    loop = asyncio.new_event_loop()
+    loop.run_until_complete(test())
+
+
+@pytest.mark.parametrize("mode", ("auto", "on"))
+def test_lifespan_scope_asgi2app(mode):
+    def asgi2app(scope):
+        assert scope == {"version": "2.0", "spec_version": "2.0"}
+
+        async def asgi(receive, send):
+            pass
+
+        return asgi
+
+    async def test():
+        config = Config(app=asgi2app, lifespan=mode)
+        lifespan = LifespanOn(config)
+
+        await lifespan.startup()
+        await lifespan.shutdown()
+
+    loop = asyncio.new_event_loop()
+    loop.run_until_complete(test())

uvicorn/lifespan/on.py

@@ -44,7 +44,10 @@ async def shutdown(self):
     async def main(self):
         try:
             app = self.config.loaded_app
-            scope = {"type": "lifespan"}
+            scope = {
+                "type": "lifespan",
+                "asgi": {"version": self.config.asgi_version, "spec_version": "2.0"},
+            }
             await app(scope, self.receive, self.send)
         except BaseException as exc:
             self.asgi = None