Create a post before going to the onboarding wizard so there is somet…

…hing to preview

tests/e2e/utils/onboarding-wizard-utils.js

@@ -1,14 +1,15 @@
 /**
  * WordPress dependencies
  */
-import { visitAdminPage } from '@wordpress/e2e-test-utils';
+import { createNewPost, visitAdminPage } from '@wordpress/e2e-test-utils';
 
 export const NEXT_BUTTON_SELECTOR = '#next-button';
 export const PREV_BUTTON_SELECTOR = '.amp-settings-nav__prev-next button:not(.is-primary)';
 
 export async function goToOnboardingWizard() {
 	await visitAdminPage( 'index.php' );
 	await expect( page ).not.toMatchElement( '#amp-onboarding-wizard' );
+	await createNewPost(); // So that there is a post to appear on the done screen.
 	await visitAdminPage( 'admin.php', 'page=amp-onboarding-wizard' );
 	await expect( page ).toMatchElement( '#amp-onboarding-wizard' );
 }