Add WPT html/webappapis/timers tests

src/wpt/BUILD.bazel

@@ -271,3 +271,9 @@ wpt_test(
     extra_wpt_directories = ["@wpt//:fetch/data-urls@module"],
     wpt_directory = "@wpt//:html/webappapis/atob@module",
 )
+
+wpt_test(
+    name = "html/webappapis/timers",
+    config = "html/webappapis/timers-test.ts",
+    wpt_directory = "@wpt//:html/webappapis/timers@module",
+)

src/wpt/html/webappapis/timers-test.ts

@@ -0,0 +1,30 @@
+// Copyright (c) 2017-2026 Cloudflare, Inc.
+// Licensed under the Apache 2.0 license found in the LICENSE file or at:
+//     https://opensource.org/licenses/Apache-2.0
+
+import { type TestRunnerConfig } from 'harness/harness';
+
+export default {
+  'clearinterval-from-callback.any.js': {},
+  'cleartimeout-clearinterval.any.js': {},
+  'evil-spec-example.any.js': {
+    comment:
+      'Passes a non-function handler, which WebIDL stringifies and evaluates as code. workerd does not support string handlers because it disallows eval; setTimeout throws a TypeError at the top level.',
+    omittedTests: true,
+  },
+  'missing-timeout-setinterval.any.js': {},
+  'negative-setinterval.any.js': {},
+  'negative-settimeout.any.js': {},
+  'setinterval-settimeout-clamping.any.js': {},
+  'type-long-setinterval.any.js': {
+    comment:
+      'Hangs: workerd takes the setInterval delay as a double instead of converting it to a WebIDL long, so a delay of 2 ** 32 waits about 49 days instead of wrapping to 0. done() is never called, so the single test never completes.',
+    disabledTests: true,
+  },
+  'type-long-settimeout.any.js': {
+    comment:
+      'Hangs: workerd takes the setTimeout delay as a double instead of converting it to a WebIDL long, so a delay of 2 ** 32 waits about 49 days instead of wrapping to 0. done() is never called, so the single test never completes.',
+    disabledTests: true,
+  },
+  'zero-settimeout.any.js': {},
+} satisfies TestRunnerConfig;