tests & an example for graphql_client (#71)

been putting this off forever

examples/Cargo.toml

@@ -9,11 +9,12 @@ publish = false
 
 [dependencies]
 async-std = { version = "1.9", features = ["attributes"] }
+async-tungstenite = { version = "0.24", features = ["async-std-runtime", "tokio-runtime"] }
 async_executors = { version = "0.7", features = ["async_std"] }
 cynic = { version = "3" }
 futures = { version = "0.3"}
-
-async-tungstenite = { version = "0.24", features = ["async-std-runtime", "tokio-runtime"] }
+graphql_client = { version = "0.13" }
+serde = "1"
 tokio = { version = "1.15", features = ["rt-multi-thread", "macros"] }
 
 [dependencies.graphql-ws-client]

examples/examples/mulitiple-subscriptions.rs → examples/examples/cynic-mulitiple-subscriptions.rs

@@ -1,5 +1,5 @@
 //! An example of running a multiple subscriptions on a single connection
-//! using `graphql-ws-client`, `async-tungstenite` & the `async_std`
+//! using `cynic`, `async-tungstenite` & the `async_std`
 //! executor.
 //!
 //! Talks to the the tide subscription example in `async-graphql`

examples/examples/single-subscription.rs → examples/examples/cynic-single-subscription.rs

@@ -1,5 +1,5 @@
 //! An example of creating a connection and running a single subscription on it
-//! using `graphql-ws-client` and `async-tungstenite`
+//! using `cynic` and `async-tungstenite`
 //!
 //! Talks to the the tide subscription example in `async-graphql`
 

examples/examples/graphql-client-single-subscription.rs

@@ -0,0 +1,45 @@
+//! An example of creating a connection and running a single subscription on it
+//! using `graphql-client` and `async-tungstenite`
+//!
+//! Talks to the the tide subscription example in `async-graphql`
+
+use futures::StreamExt;
+use graphql_client::GraphQLQuery;
+use graphql_ws_client::graphql::StreamingOperation;
+
+#[derive(GraphQLQuery)]
+#[graphql(
+    query_path = "examples/graphql-client-subscription.graphql",
+    schema_path = "../schemas/books.graphql",
+    response_derives = "Debug"
+)]
+struct BooksChanged;
+
+#[async_std::main]
+async fn main() {
+    use async_tungstenite::tungstenite::{client::IntoClientRequest, http::HeaderValue};
+    use graphql_ws_client::Client;
+
+    let mut request = "ws://localhost:8000/graphql".into_client_request().unwrap();
+    request.headers_mut().insert(
+        "Sec-WebSocket-Protocol",
+        HeaderValue::from_str("graphql-transport-ws").unwrap(),
+    );
+
+    let (connection, _) = async_tungstenite::async_std::connect_async(request)
+        .await
+        .unwrap();
+
+    println!("Connected");
+
+    let mut subscription = Client::build(connection)
+        .subscribe(StreamingOperation::<BooksChanged>::new(
+            books_changed::Variables,
+        ))
+        .await
+        .unwrap();
+
+    while let Some(item) = subscription.next().await {
+        println!("{:?}", item);
+    }
+}

examples/examples/graphql-client-subscription.graphql

@@ -0,0 +1,10 @@
+subscription BooksChanged {
+  books(mutationType: CREATED) {
+    id
+    book {
+      id
+      name
+      author
+    }
+  }
+}

tests/graphql-client-subscription.graphql

@@ -0,0 +1,10 @@
+subscription BooksChanged {
+  books(mutationType: CREATED) {
+    id
+    book {
+      id
+      name
+      author
+    }
+  }
+}

tests/graphql-client-tests.rs

@@ -0,0 +1,151 @@
+use std::{future::IntoFuture, time::Duration};
+
+use assert_matches::assert_matches;
+use graphql_client::GraphQLQuery;
+use graphql_ws_client::graphql::StreamingOperation;
+use subscription_server::SubscriptionServer;
+use tokio::time::sleep;
+
+mod subscription_server;
+
+#[derive(GraphQLQuery)]
+#[graphql(
+    query_path = "tests/graphql-client-subscription.graphql",
+    schema_path = "schemas/books.graphql",
+    response_derives = "Debug"
+)]
+struct BooksChanged;
+
+#[tokio::test]
+async fn main_test() {
+    use async_tungstenite::tungstenite::{client::IntoClientRequest, http::HeaderValue};
+    use futures::StreamExt;
+
+    let server = SubscriptionServer::start().await;
+
+    sleep(Duration::from_millis(20)).await;
+
+    let mut request = server.websocket_url().into_client_request().unwrap();
+    request.headers_mut().insert(
+        "Sec-WebSocket-Protocol",
+        HeaderValue::from_str("graphql-transport-ws").unwrap(),
+    );
+
+    let (connection, _) = async_tungstenite::tokio::connect_async(request)
+        .await
+        .unwrap();
+
+    println!("Connected");
+
+    let (mut client, actor) = graphql_ws_client::Client::build(connection).await.unwrap();
+
+    tokio::spawn(actor.into_future());
+
+    let stream = client.subscribe(build_query()).await.unwrap();
+
+    sleep(Duration::from_millis(100)).await;
+
+    let updates = [
+        subscription_server::BookChanged {
+            id: "123".into(),
+            book: None,
+        },
+        subscription_server::BookChanged {
+            id: "456".into(),
+            book: None,
+        },
+        subscription_server::BookChanged {
+            id: "789".into(),
+            book: None,
+        },
+    ];
+
+    futures::join!(
+        async {
+            for update in &updates {
+                server.send(update.to_owned()).unwrap();
+            }
+        },
+        async {
+            let received_updates = stream.take(updates.len()).collect::<Vec<_>>().await;
+
+            for (expected, update) in updates.iter().zip(received_updates) {
+                let update = update.unwrap();
+                assert_matches!(update.errors, None);
+                let data = update.data.unwrap();
+                assert_eq!(data.books.id, expected.id.0);
+            }
+        }
+    );
+}
+
+#[tokio::test]
+async fn oneshot_operation_test() {
+    use async_tungstenite::tungstenite::{client::IntoClientRequest, http::HeaderValue};
+    use futures::StreamExt;
+
+    let server = SubscriptionServer::start().await;
+
+    sleep(Duration::from_millis(20)).await;
+
+    let mut request = server.websocket_url().into_client_request().unwrap();
+    request.headers_mut().insert(
+        "Sec-WebSocket-Protocol",
+        HeaderValue::from_str("graphql-transport-ws").unwrap(),
+    );
+
+    let (connection, _) = async_tungstenite::tokio::connect_async(request)
+        .await
+        .unwrap();
+
+    println!("Connected");
+
+    let stream = graphql_ws_client::Client::build(connection)
+        .subscribe(build_query())
+        .await
+        .unwrap();
+
+    let updates = [
+        subscription_server::BookChanged {
+            id: "123".into(),
+            book: None,
+        },
+        subscription_server::BookChanged {
+            id: "456".into(),
+            book: None,
+        },
+        subscription_server::BookChanged {
+            id: "789".into(),
+            book: None,
+        },
+    ];
+
+    futures::join!(
+        async {
+            sleep(Duration::from_millis(10)).await;
+            for update in &updates {
+                server.send(update.to_owned()).unwrap();
+            }
+        },
+        async {
+            let received_updates = stream.take(updates.len()).collect::<Vec<_>>().await;
+
+            for (expected, update) in updates.iter().zip(received_updates) {
+                let update = update.unwrap();
+                assert_matches!(update.errors, None);
+                let data = update.data.unwrap();
+                assert_eq!(data.books.id, expected.id.0);
+            }
+        }
+    );
+}
+
+fn build_query() -> graphql_ws_client::graphql::StreamingOperation<BooksChanged> {
+    StreamingOperation::new(books_changed::Variables)
+}
+
+impl PartialEq<subscription_server::Book> for books_changed::BooksChangedBooksBook {
+    fn eq(&self, other: &subscription_server::Book) -> bool {
+        self.id == other.id.0 && self.name == other.name && self.author == other.author
+    }
+}