1 files changed, 62 insertions, 0 deletions
diff --git a/tests/unit_node/timers_test.ts b/tests/unit_node/timers_test.ts
new file mode 100644
index 000000000..f5cccc9a9
--- /dev/null
+++ b/tests/unit_node/timers_test.ts
@@ -0,0 +1,62 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+import { assert, fail } from "@test_util/std/assert/mod.ts";
+import * as timers from "node:timers";
+import * as timersPromises from "node:timers/promises";
+
+Deno.test("[node/timers setTimeout]", () => {
+  {
+    const { clearTimeout, setTimeout } = timers;
+    const id = setTimeout(() => {});
+    clearTimeout(id);
+  }
+
+  {
+    const id = timers.setTimeout(() => {});
+    timers.clearTimeout(id);
+  }
+});
+
+Deno.test("[node/timers setInterval]", () => {
+  {
+    const { clearInterval, setInterval } = timers;
+    const id = setInterval(() => {});
+    clearInterval(id);
+  }
+
+  {
+    const id = timers.setInterval(() => {});
+    timers.clearInterval(id);
+  }
+});
+
+Deno.test("[node/timers setImmediate]", () => {
+  {
+    const { clearImmediate, setImmediate } = timers;
+    const id = setImmediate(() => {});
+    clearImmediate(id);
+  }
+
+  {
+    const id = timers.setImmediate(() => {});
+    timers.clearImmediate(id);
+  }
+});
+
+Deno.test("[node/timers/promises setTimeout]", () => {
+  const { setTimeout } = timersPromises;
+  const p = setTimeout(0);
+
+  assert(p instanceof Promise);
+  return p;
+});
+
+// Regression test for https://github.com/denoland/deno/issues/17981
+Deno.test("[node/timers refresh cancelled timer]", () => {
+  const { setTimeout, clearTimeout } = timers;
+  const p = setTimeout(() => {
+    fail();
+  }, 1);
+  clearTimeout(p);
+  p.refresh();
+});