test: enable wpt fetch/api idlharness tests

test/common/wpt.js

@@ -624,6 +624,7 @@ class WPTRunner {
     switch (name) {
       case 'Window': {
         this.globalThisInitScripts.push('globalThis.Window = Object.getPrototypeOf(globalThis).constructor;');
+        this.globalThisInitScripts.push('globalThis.GLOBAL.isWindow = () => true;');
         break;
       }
 

test/common/wpt/worker.js

@@ -16,6 +16,7 @@ if (workerData.needsGc) {
 globalThis.self = global;
 globalThis.GLOBAL = {
   isWindow() { return false; },
+  isWorker() { return false; },
   isShadowRealm() { return false; },
 };
 globalThis.require = require;

test/fixtures/wpt/README.md

@@ -16,14 +16,15 @@ Last update:
 - dom/abort: https://github.com/web-platform-tests/wpt/tree/dc928169ee/dom/abort
 - dom/events: https://github.com/web-platform-tests/wpt/tree/0a811c5161/dom/events
 - encoding: https://github.com/web-platform-tests/wpt/tree/1ac8deee08/encoding
+- fetch/api: https://github.com/web-platform-tests/wpt/tree/75b487b9ed/fetch/api
 - fetch/data-urls/resources: https://github.com/web-platform-tests/wpt/tree/7c79d998ff/fetch/data-urls/resources
 - FileAPI: https://github.com/web-platform-tests/wpt/tree/7f51301888/FileAPI
 - hr-time: https://github.com/web-platform-tests/wpt/tree/34cafd797e/hr-time
 - html/webappapis/atob: https://github.com/web-platform-tests/wpt/tree/f267e1dca6/html/webappapis/atob
 - html/webappapis/microtask-queuing: https://github.com/web-platform-tests/wpt/tree/2c5c3c4c27/html/webappapis/microtask-queuing
 - html/webappapis/structured-clone: https://github.com/web-platform-tests/wpt/tree/47d3fb280c/html/webappapis/structured-clone
 - html/webappapis/timers: https://github.com/web-platform-tests/wpt/tree/5873f2d8f1/html/webappapis/timers
-- interfaces: https://github.com/web-platform-tests/wpt/tree/e1b27be06b/interfaces
+- interfaces: https://github.com/web-platform-tests/wpt/tree/b619cb7f23/interfaces
 - performance-timeline: https://github.com/web-platform-tests/wpt/tree/94caab7038/performance-timeline
 - resource-timing: https://github.com/web-platform-tests/wpt/tree/22d38586d0/resource-timing
 - resources: https://github.com/web-platform-tests/wpt/tree/1d2c5fb36a/resources

test/fixtures/wpt/fetch/api/abort/WEB_FEATURES.yml

@@ -0,0 +1,3 @@
+features:
+- name: abortable-fetch
+  files: "**"

test/fixtures/wpt/fetch/api/abort/cache.https.any.js

@@ -0,0 +1,47 @@
+// META: title=Request signals & the cache API
+// META: global=window,worker
+
+promise_test(async () => {
+  await caches.delete('test');
+  const controller = new AbortController();
+  const signal = controller.signal;
+  const request = new Request('../resources/data.json', { signal });
+
+  const cache = await caches.open('test');
+  await cache.put(request, new Response(''));
+
+  const requests = await cache.keys();
+
+  assert_equals(requests.length, 1, 'Ensuring cleanup worked');
+
+  const [cachedRequest] = requests;
+
+  controller.abort();
+
+  assert_false(cachedRequest.signal.aborted, "Request from cache shouldn't be aborted");
+
+  const data = await fetch(cachedRequest).then(r => r.json());
+  assert_equals(data.key, 'value', 'Fetch fully completes');
+}, "Signals are not stored in the cache API");
+
+promise_test(async () => {
+  await caches.delete('test');
+  const controller = new AbortController();
+  const signal = controller.signal;
+  const request = new Request('../resources/data.json', { signal });
+  controller.abort();
+
+  const cache = await caches.open('test');
+  await cache.put(request, new Response(''));
+
+  const requests = await cache.keys();
+
+  assert_equals(requests.length, 1, 'Ensuring cleanup worked');
+
+  const [cachedRequest] = requests;
+
+  assert_false(cachedRequest.signal.aborted, "Request from cache shouldn't be aborted");
+
+  const data = await fetch(cachedRequest).then(r => r.json());
+  assert_equals(data.key, 'value', 'Fetch fully completes');
+}, "Signals are not stored in the cache API, even if they're already aborted");

test/fixtures/wpt/fetch/api/abort/destroyed-context.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+// This is a regression test for crbug.com/860063.
+window.controller = new AbortController();
+async_test(t => {
+  onmessage = t.step_func(event => {
+    assert_equals(event.data, 'started');
+    const iframe = document.querySelector('iframe');
+    document.body.removeChild(iframe);
+    controller.abort();
+    t.done();
+  });
+}, 'aborting a fetch in a destroyed context should not crash');
+</script>
+<iframe srcdoc="
+                <!DOCTYPE html>
+                <meta charset=utf-8>
+                <script>
+                fetch('../resources/infinite-slow-response.py', { signal: parent.controller.signal }).then(() => {
+                  parent.postMessage('started', '*');
+                });
+                </script>
+                ">
+</iframe>