for runAllTimers, failing

test/js/bun/test/fake-timers/order.test.ts

@@ -0,0 +1,53 @@
+import { vi, test, beforeAll, afterAll, expect } from "vitest";
+
+beforeAll(() => vi.useFakeTimers());
+afterAll(() => vi.useRealTimers());
+
+test("runAllTimers runs in order of time", () => {
+  const order: number[] = [];
+
+  setTimeout(() => {
+    order.push(1000);
+    setTimeout(() => {
+      order.push(1000 + 500);
+    }, 500);
+    setTimeout(() => {
+      order.push(1000 + 1500);
+    }, 1500);
+  }, 1000);
+  setTimeout(() => {
+    order.push(500);
+  }, 500);
+  setTimeout(() => {
+    order.push(2000);
+  }, 2000);
+
+  vi.runAllTimers();
+
+  expect(order).toEqual(order.toSorted((a, b) => a - b));
+});
+
+test("runAllTimers supports interval", () => {
+  let ticks = 0;
+  const interval = setInterval(() => {
+    ticks += 1;
+    if (ticks >= 10) clearInterval(interval);
+  }, 25);
+
+  vi.runAllTimers();
+
+  expect(ticks).toBe(10);
+});
+
+test("fake timers clear after useRealTimers", () => {
+  let ticks = 0;
+  setTimeout(() => {
+    ticks += 1;
+  }, 10);
+  expect(ticks).toBe(0);
+  vi.useRealTimers();
+  expect(ticks).toBe(0);
+  vi.useFakeTimers();
+  vi.runAllTimers();
+  expect(ticks).toBe(0);
+});