1 files changed, 34 insertions, 0 deletions
diff --git a/tokio/tests/rt_basic.rs b/tokio/tests/rt_basic.rs
new file mode 100644
index 00000000..039bb22f
--- /dev/null
+++ b/tokio/tests/rt_basic.rs
@@ -0,0 +1,34 @@
+#![warn(rust_2018_idioms)]
+
+use tokio::runtime::Runtime;
+use tokio::sync::oneshot;
+use tokio_test::{assert_err, assert_ok};
+
+use std::thread;
+use std::time::Duration;
+
+#[test]
+fn spawned_task_does_not_progress_without_block_on() {
+    let (tx, mut rx) = oneshot::channel();
+
+    let mut rt = rt();
+
+    rt.spawn(async move {
+        assert_ok!(tx.send("hello"));
+    });
+
+    thread::sleep(Duration::from_millis(50));
+
+    assert_err!(rx.try_recv());
+
+    let out = rt.block_on(async { assert_ok!(rx.await) });
+
+    assert_eq!(out, "hello");
+}
+
+fn rt() -> Runtime {
+    tokio::runtime::Builder::new()
+        .basic_scheduler()
+        .build()
+        .unwrap()
+}