diff --git a/test/js/web/timers/process-setImmediate-fixture.js b/test/js/web/timers/process-setImmediate-fixture.js
new file mode 100644
index 00000000000000..6ffd91c8d66053
--- /dev/null
+++ b/test/js/web/timers/process-setImmediate-fixture.js
@@ -0,0 +1,9 @@
+setImmediate(() => {
+  console.log("setImmediate");
+  return {
+    a: 1,
+    b: 2,
+    c: 3,
+    d: 4,
+  };
+});