1 files changed, 5 insertions, 0 deletions
diff --git a/js/os_test.ts b/js/os_test.ts
index 21ec5e69d..0784fd5e4 100644
--- a/js/os_test.ts
+++ b/js/os_test.ts
@@ -27,3 +27,8 @@ test(function osPid() {
   console.log("pid", deno.pid);
   assert(deno.pid > 0);
 });
+
+// See complete tests in tools/is_tty_test.py
+test(function osIsTTYSmoke() {
+  console.log(deno.isTTY());
+});