context is optional

packages/web-util/src/tests/hook.ts

@@ -80,7 +80,7 @@ const isNode = typeof window === "undefined";
 export function renderNodeOrBrowser(
   Component: any,
   args: any,
-  Context: any,
+  Context?: any,
 ): void {
   const vdom = !Context
     ? create(Component, args)
@@ -91,7 +91,6 @@ export function renderNodeOrBrowser(
   if (!isNode) {
     document.body.appendChild(parentElement);
   }
-
   // renderIntoDom works also in nodejs
   // if the VirtualDOM is composed only by functional components
   // then no called is going to be made to the DOM api.