1 files changed, 18 insertions, 0 deletions
diff --git a/testing/web-platform/tests/portals/idlharness.window.js b/testing/web-platform/tests/portals/idlharness.window.js
new file mode 100644
index 0000000000..b43d17dc56
--- /dev/null
+++ b/testing/web-platform/tests/portals/idlharness.window.js
@@ -0,0 +1,18 @@
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+
+// https://wicg.github.io/portals/
+
+'use strict';
+
+idl_test(
+  ['portals'],
+  ['html', 'dom'],
+  async idl_array => {
+    idl_array.add_objects({
+      HTMLPortalElement: ['document.createElement("portal")'],
+      PortalHost: ['window.portalHost'],
+      PortalActivateEvent: ['new PortalActivateEvent("portalactivate")'],
+    });
+  }
+);