1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/async-await/no-non-guaranteed-initialization.rs b/tests/ui/async-await/no-non-guaranteed-initialization.rs
new file mode 100644
index 00000000000..c4d81bf83a3
--- /dev/null
+++ b/tests/ui/async-await/no-non-guaranteed-initialization.rs
@@ -0,0 +1,12 @@
+// edition:2018
+// compile-flags: --crate-type lib
+
+async fn no_non_guaranteed_initialization(x: usize) -> usize {
+    let y;
+    if x > 5 {
+        y = echo(10).await;
+    }
+    y //~ ERROR E0381
+}
+
+async fn echo(x: usize) -> usize { x + 1 }