Upgrade tokio 0.2 -> 1.0.2

Recently tokio got a first stable release and many libraries &
applications already migrated to the newest version.

This changes upgrades tokio version to 1.0.2:

* Tokio renamed some of its features, e.g `rt-util` and `rt-core` now
  combined into `rt`.

* `stream` feature got extracted to a separate crate
  [tokio-stream](https://docs.rs/tokio-stream/0.1.2/tokio_stream),
  waiting for eventual `Stream` landing to the Rust std
  library. [RFC](rust-lang/rfcs#2996)

[TODO]

Actix's integration test_actix_ws_integration test still fails due to,
I guess, async rt is not being initialized. Apart from that, the tests
are green. Please feel free to take over this effort.

docs/book/tests/Cargo.toml

@@ -16,7 +16,7 @@ iron = "0.5"
 mount = "0.4"
 skeptic = "0.13"
 serde_json = "1.0"
-tokio = { version = "0.2", features = ["blocking", "macros", "rt-core", "rt-util", "stream"] }
+tokio = { version = "1.0.2", features = ["macros", "rt"] }
 uuid = "0.8"
 
 [build-dependencies]

examples/actix_subscriptions/Cargo.toml

@@ -9,7 +9,8 @@ publish = false
 actix-web = "3.3"
 actix-cors = "0.5"
 futures = "0.3"
-tokio = { version = "0.2", features = ["macros", "rt-core"] }
+tokio = { version = "1.0.2", features = ["rt", "rt-multi-thread", "macros", "time"] }
+tokio-stream = "0.1.2"
 env_logger = "0.8"
 serde = "1.0"
 serde_json = "1.0"

examples/actix_subscriptions/src/main.rs

@@ -10,6 +10,7 @@ use juniper::{
 };
 use juniper_actix::{graphql_handler, playground_handler, subscriptions::subscriptions_handler};
 use juniper_graphql_ws::ConnectionConfig;
+use tokio_stream::wrappers::IntervalStream;
 
 type Schema = RootNode<'static, Query, EmptyMutation<Database>, Subscription>;
 
@@ -65,7 +66,9 @@ impl Subscription {
         use rand::{rngs::StdRng, Rng, SeedableRng};
         let mut rng = StdRng::from_entropy();
 
-        let stream = tokio::time::interval(Duration::from_secs(3)).map(move |_| {
+        println!("found it");
+        let interval = tokio::time::interval(Duration::from_secs(3));
+        let stream = IntervalStream::new(interval).map(move |_| {
             counter += 1;
 
             if counter == 2 {

examples/basic_subscriptions/Cargo.toml

@@ -11,7 +11,7 @@ authors = ["Jordao Rosario <jordao.rosario01@gmail.com>"]
 futures = "0.3"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-tokio = { version = "0.2", features = ["rt-core", "macros", "stream"] }
+tokio = { version = "1.0.2", features = ["rt", "macros"] }
 
 juniper = { path = "../../juniper" }
 juniper_subscriptions = { path = "../../juniper_subscriptions" }

examples/basic_subscriptions/src/main.rs

@@ -37,7 +37,7 @@ type StringStream = Pin<Box<dyn Stream<Item = Result<String, FieldError>> + Send
 impl Subscription {
     async fn hello_world() -> StringStream {
         let stream =
-            tokio::stream::iter(vec![Ok(String::from("Hello")), Ok(String::from("World!"))]);
+            futures::stream::iter(vec![Ok(String::from("Hello")), Ok(String::from("World!"))]);
         Box::pin(stream)
     }
 }

examples/warp_async/Cargo.toml

@@ -13,5 +13,5 @@ env_logger = "0.8.1"
 futures = "0.3.1"
 log = "0.4.8"
 reqwest = { version = "0.11", features = ["rustls-tls"] }
-tokio = { version = "0.2", features = ["rt-core", "macros"] }
+tokio = { version = "1.0.2", features = ["rt", "macros"] }
 warp = "0.2"

examples/warp_subscriptions/Cargo.toml

@@ -10,7 +10,8 @@ futures = "0.3.1"
 log = "0.4.8"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-tokio = { version = "0.2", features = ["rt-core", "macros"] }
+tokio = { version = "1.0.2", features = ["rt", "rt-multi-thread", "macros", "time"] }
+tokio-stream = "0.1.2"
 warp = "0.2.1"
 
 juniper = { path = "../../juniper" }

examples/warp_subscriptions/src/main.rs

@@ -9,6 +9,7 @@ use juniper::{
 };
 use juniper_graphql_ws::ConnectionConfig;
 use juniper_warp::{playground_filter, subscriptions::serve_graphql_ws};
+use tokio_stream::wrappers::IntervalStream;
 use warp::{http::Response, Filter};
 
 #[derive(Clone)]
@@ -109,7 +110,8 @@ struct Subscription;
 impl Subscription {
     async fn users() -> UsersStream {
         let mut counter = 0;
-        let stream = tokio::time::interval(Duration::from_secs(5)).map(move |_| {
+        let interval = tokio::time::interval(Duration::from_secs(5));
+        let stream = IntervalStream::new(interval).map(move |_| {
             counter += 1;
             if counter == 2 {
                 Err(FieldError::new(

integration_tests/async_await/Cargo.toml

@@ -8,4 +8,4 @@ publish = false
 [dependencies]
 juniper = { path = "../../juniper" }
 futures = "0.3.1"
-tokio = { version = "0.2", features = ["rt-core", "time", "macros"] }
+tokio = { version = "1.0.2", features = ["rt", "time", "macros"] }

integration_tests/async_await/src/main.rs

@@ -42,7 +42,7 @@ impl User {
     }
 
     async fn delayed() -> bool {
-        tokio::time::delay_for(std::time::Duration::from_millis(100)).await;
+        tokio::time::sleep(std::time::Duration::from_millis(100)).await;
         true
     }
 }
@@ -68,7 +68,7 @@ impl Query {
     }
 
     async fn delayed() -> bool {
-        tokio::time::delay_for(std::time::Duration::from_millis(100)).await;
+        tokio::time::sleep(std::time::Duration::from_millis(100)).await;
         true
     }
 }

integration_tests/codegen_fail/Cargo.toml

@@ -10,5 +10,5 @@ futures = "0.3.1"
 
 [dev-dependencies]
 serde_json = { version = "1" }
-tokio = { version = "0.2", features = ["rt-core", "time", "macros"] }
+tokio = { version = "1.0.2", features = ["rt", "time", "macros"] }
 trybuild = "1.0.25"

integration_tests/juniper_tests/Cargo.toml

@@ -14,4 +14,4 @@ juniper_subscriptions = { path = "../../juniper_subscriptions" }
 async-trait = "0.1.39"
 serde_json = "1.0"
 fnv = "1.0"
-tokio = { version = "0.2", features = ["macros", "rt-core", "time"] }
+tokio = { version = "1.0.2", features = ["macros", "rt", "time"] }

juniper/Cargo.toml

@@ -55,7 +55,7 @@ uuid = { version = "0.8", default-features = false, optional = true }
 bencher = "0.1.2"
 pretty_assertions = "0.7.1"
 serde_json = "1.0.2"
-tokio = { version = "0.2", features = ["macros", "rt-core", "time"] }
+tokio = { version = "1.0.2", features = ["macros", "rt", "time"] }
 
 [[bench]]
 name = "bench"

juniper/src/executor_tests/async_await/mod.rs

@@ -39,7 +39,7 @@ impl User {
     }
 
     async fn delayed() -> bool {
-        tokio::time::delay_for(std::time::Duration::from_millis(100)).await;
+        tokio::time::sleep(std::time::Duration::from_millis(100)).await;
         true
     }
 }
@@ -65,7 +65,7 @@ impl Query {
     }
 
     async fn delayed() -> bool {
-        tokio::time::delay_for(std::time::Duration::from_millis(100)).await;
+        tokio::time::sleep(std::time::Duration::from_millis(100)).await;
         true
     }
 }
@@ -74,10 +74,10 @@ impl Query {
 async fn async_simple() {
     let schema = RootNode::new(Query, EmptyMutation::new(), EmptySubscription::new());
     let doc = r#"
-        query { 
+        query {
             fieldSync
-            fieldAsyncPlain 
-            delayed  
+            fieldAsyncPlain
+            delayed
             user(id: "user1") {
                 name
             }

juniper/src/tests/subscriptions.rs

@@ -33,7 +33,7 @@ type Schema =
     RootNode<'static, MyQuery, EmptyMutation<MyContext>, MySubscription, DefaultScalarValue>;
 
 fn run<O>(f: impl std::future::Future<Output = O>) -> O {
-    let mut rt = tokio::runtime::Runtime::new().unwrap();
+    let rt = tokio::runtime::Runtime::new().unwrap();
 
     rt.block_on(f)
 }

juniper_actix/Cargo.toml

@@ -24,7 +24,6 @@ futures = "0.3.5"
 serde = { version = "1.0.116", features = ["derive"] }
 serde_json = "1.0.57"
 thiserror = "1.0"
-tokio = { version = "0.2", features = ["time"] }
 
 [dev-dependencies]
 actix-rt = "1.1"

juniper_actix/src/lib.rs

@@ -224,7 +224,7 @@ pub mod subscriptions {
     };
     use actix_web_actors::ws;
 
-    use tokio::sync::Mutex;
+    use futures::lock::Mutex;
 
     use juniper::{
         futures::{
@@ -777,7 +777,7 @@ mod subscription_tests {
         EmptyMutation, LocalBoxFuture,
     };
     use juniper_graphql_ws::ConnectionConfig;
-    use tokio::time::timeout;
+    use actix_rt::time::timeout;
 
     use super::subscriptions::subscriptions_handler;
 
@@ -800,6 +800,9 @@ mod subscription_tests {
             });
             let mut framed = server.ws_at("/subscriptions").await.unwrap();
 
+
+            println!("wooowe");
+
             for message in &messages {
                 match message {
                     WsIntegrationMessage::Send(body) => {
@@ -809,12 +812,14 @@ mod subscription_tests {
                             .map_err(|e| anyhow::anyhow!("WS error: {:?}", e))?;
                     }
                     WsIntegrationMessage::Expect(body, message_timeout) => {
+                        println!("right???");
                         let frame = timeout(Duration::from_millis(*message_timeout), framed.next())
                             .await
                             .map_err(|_| anyhow::anyhow!("Timed-out waiting for message"))?
                             .ok_or_else(|| anyhow::anyhow!("Empty message received"))?
                             .map_err(|e| anyhow::anyhow!("WS error: {:?}", e))?;
 
+                        println!("dead...");
                         match frame {
                             ws::Frame::Text(ref bytes) => {
                                 let expected_value =
@@ -865,7 +870,7 @@ mod subscription_tests {
         subscriptions_handler(req, stream, schema, config).await
     }
 
-    #[actix_web::rt::test]
+    #[actix_rt::test]
     async fn test_actix_ws_integration() {
         run_ws_test_suite(&mut TestActixWsIntegration::default()).await;
     }

juniper_benchmarks/Cargo.toml

@@ -10,7 +10,7 @@ juniper = { path = "../juniper" }
 
 [dev-dependencies]
 criterion = "0.3"
-tokio = { version = "0.2", features = ["rt-core", "rt-threaded"] }
+tokio = { version = "1.0.2", features = ["rt", "rt-multi-thread"] }
 
 [[bench]]
 name = "benchmark"

juniper_graphql_ws/Cargo.toml

@@ -13,7 +13,7 @@ keywords = ["apollo", "graphql", "graphql-ws", "juniper"]
 juniper = { version = "0.15.6", path = "../juniper", default-features = false }
 juniper_subscriptions = { version = "0.15.5", path = "../juniper_subscriptions" }
 serde = { version = "1.0.8", features = ["derive"], default-features = false }
-tokio = { version = "0.2", features = ["macros", "rt-core", "time"], default-features = false }
+tokio = { version = "1.0.2", features = ["macros", "rt", "time"], default-features = false }
 
 [dev-dependencies]
 serde_json = "1.0"

juniper_graphql_ws/src/lib.rs

@@ -176,7 +176,7 @@ impl<S: Schema, I: Init<S::ScalarValue, S::Context>> ConnectionState<S, I> {
                                 .boxed();
                             s = s
                                 .chain(stream::unfold((), move |_| async move {
-                                    tokio::time::delay_for(keep_alive_interval).await;
+                                    tokio::time::sleep(keep_alive_interval).await;
                                     Some((
                                         Reaction::ServerMessage(ServerMessage::ConnectionKeepAlive),
                                         (),
@@ -658,7 +658,7 @@ mod test {
     impl Subscription {
         /// never never emits anything.
         async fn never(context: &Context) -> BoxStream<'static, FieldResult<i32>> {
-            tokio::time::delay_for(Duration::from_secs(10000))
+            tokio::time::sleep(Duration::from_secs(10000))
                 .map(|_| unreachable!())
                 .into_stream()
                 .boxed()
@@ -668,7 +668,7 @@ mod test {
         async fn context(context: &Context) -> BoxStream<'static, FieldResult<i32>> {
             stream::once(future::ready(Ok(context.0)))
                 .chain(
-                    tokio::time::delay_for(Duration::from_secs(10000))
+                    tokio::time::sleep(Duration::from_secs(10000))
                         .map(|_| unreachable!())
                         .into_stream(),
                 )
@@ -682,7 +682,7 @@ mod test {
                 Value::null(),
             ))))
             .chain(
-                tokio::time::delay_for(Duration::from_secs(10000))
+                tokio::time::sleep(Duration::from_secs(10000))
                     .map(|_| unreachable!())
                     .into_stream(),
             )

juniper_hyper/Cargo.toml

@@ -13,11 +13,11 @@ futures = "0.3.1"
 juniper = { version = "0.15.6", path = "../juniper", default-features = false }
 hyper = "0.13"
 serde_json = "1.0"
-tokio = "0.2"
+tokio = "1.0.2"
 url = "2"
 
 [dev-dependencies]
 juniper = { version = "0.15.6", path = "../juniper", features = ["expose-test-schema"] }
 pretty_env_logger = "0.4"
-reqwest = { version = "0.11", features = ["blocking", "rustls-tls"] }
-tokio = { version = "0.2", features = ["macros"] }
+reqwest = { version = "0.11", features = ["rustls-tls", "blocking"] }
+tokio = { version = "1.0.2", features = ["macros"] }

juniper_hyper/src/lib.rs

@@ -421,7 +421,7 @@ mod tests {
         });
 
         let (shutdown_fut, shutdown) = futures::future::abortable(async {
-            tokio::time::delay_for(Duration::from_secs(60)).await;
+            tokio::time::sleep(Duration::from_secs(60)).await;
         });
 
         let server = Server::bind(&addr)

juniper_rocket_async/Cargo.toml

@@ -16,6 +16,7 @@ futures = "0.3.1"
 juniper = { version = "0.15.6", path = "../juniper", default-features = false }
 rocket = { version = "0.5.0-rc.1", default-features = false }
 serde_json = "1.0.2"
+tokio = { version = "1.0.2", features = ["macros", "rt"] }
 
 [dev-dependencies]
 juniper = { version = "0.15.6", path = "../juniper", features = ["expose-test-schema"] }

juniper_subscriptions/Cargo.toml

@@ -14,4 +14,4 @@ juniper = { version = "0.15.6", path = "../juniper", default-features = false }
 
 [dev-dependencies]
 serde_json = "1.0"
-tokio = { version = "0.2", features = ["macros", "rt-core"] }
+tokio = { version = "1.0.2", features = ["macros", "rt"] }

juniper_warp/Cargo.toml

@@ -20,13 +20,13 @@ juniper_graphql_ws = { version = "0.2.5", path = "../juniper_graphql_ws", option
 serde = { version = "1.0.75", features = ["derive"] }
 serde_json = "1.0.24"
 thiserror = "1.0"
-tokio = { version = "0.2", features = ["blocking", "rt-core"] }
+tokio = { version = "1.0.2", features = ["rt"] }
 warp = "0.2"
 
 [dev-dependencies]
 env_logger = "0.8"
 juniper = { version = "0.15.6", path = "../juniper", features = ["expose-test-schema"] }
 log = "0.4"
 percent-encoding = "2.1"
-tokio = { version = "0.2", features = ["blocking", "macros", "rt-core"] }
+tokio = { version = "1.0.2", features = ["macros", "rt"] }
 url = "2"

juniper_warp/src/lib.rs

@@ -717,7 +717,7 @@ mod tests_http_harness {
         }
 
         fn make_request(&self, req: warp::test::RequestBuilder) -> TestResponse {
-            let mut rt = tokio::runtime::Runtime::new().expect("Failed to create tokio::Runtime");
+            let rt = tokio::runtime::Runtime::new().expect("Failed to create tokio::Runtime");
             make_test_response(rt.block_on(async move {
                 req.filter(&self.filter).await.unwrap_or_else(|rejection| {
                     let code = if rejection.is_not_found() {