federation-api: Move create_join_event::v1 test as integration test

Otherwise cargo check always complains that we are using
a deprecated const.
See https://github.com/rust-lang/rust/issues/47238

crates/ruma-federation-api/src/membership/create_join_event/v1.rs

@@ -109,24 +109,3 @@ impl RoomState {
         Self { auth_chain: Vec::new(), state: Vec::new(), event: None }
     }
 }
-
-#[allow(deprecated)]
-#[cfg(all(test, feature = "server", not(feature = "unstable-unspecified")))]
-mod tests {
-    use ruma_common::api::OutgoingResponse;
-    use serde_json::{from_slice as from_json_slice, json, Value as JsonValue};
-
-    use super::{Response, RoomState};
-
-    #[test]
-    fn response_body() {
-        let res = Response::new(RoomState::new("ORIGIN".to_owned()))
-            .try_into_http_response::<Vec<u8>>()
-            .unwrap();
-
-        assert_eq!(
-            from_json_slice::<JsonValue>(res.body()).unwrap(),
-            json!([200, { "auth_chain": [], "origin": "ORIGIN", "state": [] }])
-        );
-    }
-}

crates/ruma-federation-api/tests/membership/create_join_event.rs

@@ -0,0 +1,19 @@
+#[allow(deprecated)]
+#[cfg(all(feature = "server", not(feature = "unstable-unspecified")))]
+mod v1 {
+    use ruma_common::api::OutgoingResponse;
+    use ruma_federation_api::membership::create_join_event::v1::{Response, RoomState};
+    use serde_json::{from_slice as from_json_slice, json, Value as JsonValue};
+
+    #[test]
+    fn response_body() {
+        let res = Response::new(RoomState::new("ORIGIN".to_owned()))
+            .try_into_http_response::<Vec<u8>>()
+            .unwrap();
+
+        assert_eq!(
+            from_json_slice::<JsonValue>(res.body()).unwrap(),
+            json!([200, { "auth_chain": [], "origin": "ORIGIN", "state": [] }])
+        );
+    }
+}

crates/ruma-federation-api/tests/membership/mod.rs

@@ -0,0 +1 @@
+mod create_join_event;

crates/ruma-federation-api/tests/tests.rs

@@ -0,0 +1 @@
+mod membership;