1 files changed, 61 insertions, 0 deletions
diff --git a/test/js/web/timers/setInterval.test.js b/test/js/web/timers/setInterval.test.js
new file mode 100644
index 000000000..7b03afba5
--- /dev/null
+++ b/test/js/web/timers/setInterval.test.js
@@ -0,0 +1,61 @@
+import { it, expect } from "bun:test";
+
+it("setInterval", async () => {
+  var counter = 0;
+  var start;
+  const result = await new Promise((resolve, reject) => {
+    start = performance.now();
+
+    var id = setInterval(
+      (...args) => {
+        counter++;
+        if (counter === 10) {
+          resolve(counter);
+          clearInterval(id);
+        }
+        try {
+          expect(args).toStrictEqual(["foo"]);
+        } catch (err) {
+          reject(err);
+          clearInterval(id);
+        }
+      },
+      1,
+      "foo",
+    );
+  });
+
+  expect(result).toBe(10);
+  expect(performance.now() - start >= 10).toBe(true);
+});
+
+it("clearInterval", async () => {
+  var called = false;
+  const id = setInterval(() => {
+    called = true;
+    expect(false).toBe(true);
+  }, 1);
+  clearInterval(id);
+  await new Promise((resolve, reject) => {
+    setInterval(() => {
+      resolve();
+    }, 10);
+  });
+  expect(called).toBe(false);
+});
+
+it("async setInterval", async () => {
+  var remaining = 5;
+  await new Promise((resolve, reject) => {
+    queueMicrotask(() => {
+      var id = setInterval(async () => {
+        await 1;
+        remaining--;
+        if (remaining === 0) {
+          clearInterval(id);
+          resolve();
+        }
+      }, 1);
+    });
+  });
+});