1 files changed, 8 insertions, 0 deletions
diff --git a/std/async/deferred_test.ts b/std/async/deferred_test.ts
new file mode 100644
index 000000000..83c317853
--- /dev/null
+++ b/std/async/deferred_test.ts
@@ -0,0 +1,8 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { deferred } from "./deferred.ts";
+
+Deno.test("[async] deferred", function (): Promise<void> {
+  const d = deferred<number>();
+  d.resolve(12);
+  return Promise.resolve();
+});