deleted file mode 100644
--- a/testing/web-platform/tests/PeriodicBackgroundSync/idlharness.https.any.js
+++ /dev/null
@@ -1,38 +0,0 @@
-// META: script=/resources/WebIDLParser.js
-// META: script=/resources/idlharness.js
-
-'use strict';
-
-// https://github.com/WICG/BackgroundSync/blob/master/spec/PeriodicBackgroundSync-index.html
-
-const idl = `
-partial interface ServiceWorkerGlobalScope {
-    attribute EventHandler onperiodicsync;
-};
-[
-  Exposed=(Window,Worker)
-] partial interface ServiceWorkerRegistration {
-    readonly attribute PeriodicSyncManager periodicSync;
-    readonly attribute SyncManager sync;
-};
-dictionary PeriodicSyncEventInit : ExtendableEventInit {
-    required DOMString tag;
-};
-[
-  Constructor(DOMString type, PeriodicSyncEventInit init),
-  Exposed=ServiceWorker
-] interface PeriodicSyncEvent : ExtendableEvent {
-    readonly attribute DOMString tag;
-};
-`;
-
-test(t => {
-  const idlArray = new IdlArray();
-  idlArray.add_idls(idl);
-  idlArray.add_objects({
-    ServiceWorkerGlobalScope: ['self', 'onperiodicsync'],
-    ServiceWorkerRegistration: ['registration'],
-    PeriodicSyncManager: ['registration.periodicSync'],
-    PeriodicSyncEvent: ['new PeriodicSyncEvent("tag")'],
-  });
-}, 'IDL test for Periodic Background Sync');

new file mode 100644
--- /dev/null
+++ b/testing/web-platform/tests/periodic-background-sync/META.yml
@@ -0,0 +1,4 @@
+spec: https://wicg.github.io/periodic-background-sync/
+suggested_reviewers:
+  - jakearchibald
+  - mugdhalakhani

new file mode 100644
--- /dev/null
+++ b/testing/web-platform/tests/periodic-background-sync/idlharness.https.any.js
@@ -0,0 +1,38 @@
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+
+'use strict';
+
+// https://wicg.github.io/periodic-background-sync/
+
+const idl = `
+partial interface ServiceWorkerGlobalScope {
+    attribute EventHandler onperiodicsync;
+};
+[
+  Exposed=(Window,Worker)
+] partial interface ServiceWorkerRegistration {
+    readonly attribute PeriodicSyncManager periodicSync;
+    readonly attribute SyncManager sync;
+};
+dictionary PeriodicSyncEventInit : ExtendableEventInit {
+    required DOMString tag;
+};
+[
+  Constructor(DOMString type, PeriodicSyncEventInit init),
+  Exposed=ServiceWorker
+] interface PeriodicSyncEvent : ExtendableEvent {
+    readonly attribute DOMString tag;
+};
+`;
+
+test(t => {
+  const idlArray = new IdlArray();
+  idlArray.add_idls(idl);
+  idlArray.add_objects({
+    ServiceWorkerGlobalScope: ['self', 'onperiodicsync'],
+    ServiceWorkerRegistration: ['registration'],
+    PeriodicSyncManager: ['registration.periodicSync'],
+    PeriodicSyncEvent: ['new PeriodicSyncEvent("tag")'],
+  });
+}, 'IDL test for Periodic Background Sync');

rename from testing/web-platform/tests/PeriodicBackgroundSync/periodicsync.https.window.js
rename to testing/web-platform/tests/periodic-background-sync/periodicsync.https.window.js

rename from testing/web-platform/tests/PeriodicBackgroundSync/service_workers/sw.js
rename to testing/web-platform/tests/periodic-background-sync/service_workers/sw.js