adds a test to ensure multiple registries are possible when using wit…

…h_subscriber

tracing-subscriber/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.2.10"
 authors = [
     "Eliza Weisman <[email protected]>",
     "David Barsky <[email protected]>",
-    "Tokio Contributors <[email protected]>"
+    "Tokio Contributors <[email protected]>",
 ]
 edition = "2018"
 license = "MIT"
@@ -57,11 +57,13 @@ sharded-slab = { version = "^0.0.9", optional = true }
 thread_local = "1.0.1"
 
 [dev-dependencies]
-tracing = { path = "../tracing", version = "0.1"}
+tracing = { path = "../tracing", version = "0.1" }
 log = "0.4"
 tracing-log = { path = "../tracing-log", version = "0.1" }
 criterion = { version = "0.3", default_features = false }
 regex = "1"
+tracing-futures = { path = "../tracing-futures", version = "0.2", default-features = false, features = ["std-future", "std"] }
+tokio = { version = "0.2", features = ["rt-core", "macros"] }
 
 [badges]
 maintenance = { status = "experimental" }

tracing-subscriber/tests/registry_with_subscriber.rs

@@ -0,0 +1,25 @@
+
+use tracing_futures::{Instrument, WithSubscriber};
+use tracing_subscriber::prelude::*;
+
+#[tokio::test]
+async fn future_with_subscriber() {
+    let _default = tracing_subscriber::registry().init();
+    let span = tracing::info_span!("foo");
+    let _e = span.enter();
+    let span = tracing::info_span!("bar");
+    let _e = span.enter();
+    tokio::spawn(
+        async {
+            async {
+                let span = tracing::Span::current();
+                println!("{:?}", span);
+            }
+            .instrument(tracing::info_span!("hi"))
+            .await
+        }
+        .with_subscriber(tracing_subscriber::registry()),
+    )
+    .await
+    .unwrap();
+}