1 files changed, 13 insertions, 0 deletions
diff --git a/components/script/dom/webidls/TestWorklet.webidl b/components/script/dom/webidls/TestWorklet.webidl
new file mode 100644
index 00000000000..be254a3d079
--- /dev/null
+++ b/components/script/dom/webidls/TestWorklet.webidl
@@ -0,0 +1,13 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// This interface is entirely internal to Servo, and should not be accessible to
+// web pages.
+
+[Pref="dom.worklet.testing.enabled", Exposed=(Window)]
+interface TestWorklet {
+   [Throws] constructor();
+   [NewObject] Promise<void> addModule(USVString moduleURL, optional WorkletOptions options = {});
+   DOMString? lookup(DOMString key);
+};