message: test-utils: Attach mountPoint to Page
diff: @@ -23,8 +23,7 @@ import privateExports, {
  BootErrorPageProps,
  RouteRef,
  ExternalRouteRef,
  - createPlugin,
  - createRoutableExtension,
  + attachComponentData,
  } from '@backstage/core-api';
  import { RenderResult } from '@testing-library/react';
  import { renderWithEffects } from '@backstage/test-utils-core';
  @@ -110,16 +109,10 @@ export function wrapInTestApp(
  Wrapper = () => Component as React.ReactElement;
  }
  - const routePlugin = createPlugin({ id: 'mock-route-plugin' });
  const routeElements = Object.entries(options.mountedRoutes ?? {}).map(
  ([path, routeRef]) => {
  - const PageComponent = () => <div>Mounted at {path}</div>;
  - const Page = routePlugin.provide(
  - createRoutableExtension({
  - component: async () => PageComponent,
  - mountPoint: routeRef,
  - }),
  - );
  + const Page = () => <div>Mounted at {path}</div>;
  + attachComponentData(Page, 'core.mountPoint', routeRef);
  return <Route key={path} path={path} element={<Page />} />;
  },
  );
  