Fixes #173 Adds to clean-up the switch theme via WP CLI

src/features/performance-hints.feature

@@ -20,7 +20,6 @@ Feature: Clear lcp/performance hints data tests
         Given performance hints data added to DB
         And switching the theme
         Then data is removed from the performance hints tables
-        Then theme 'Twenty Twenty' is activated
 
     Scenario: Should clear performance hints of the current URL
         Given I log out

utils/commands.ts

@@ -293,6 +293,19 @@ export async function updatePermalinkStructure(structure: string): Promise<void>
     await wp(`option update permalink_structure ${structure}`);
 }
 
+/**
+ * Switch Theme.
+ *
+ * @function
+ * @name switchToDefaultTheme
+ * @async
+ * @param {string} theme - The theme to activate.
+ * @returns {Promise<void>} - A Promise that resolves when the theme is activated.
+ */
+export async function switchToDefaultTheme(theme: string): Promise<void> {
+    await wp(`theme activate ${theme}`);
+}
+
 /**
  * Executes a SQL query on the WordPress database using WP-CLI.
  *

utils/page-utils.ts

@@ -16,7 +16,7 @@ import { ICustomWorld } from '../src/common/custom-world';
 import fs from "fs/promises";
 
 import {WP_BASE_URL, WP_PASSWORD, WP_USERNAME} from '../config/wp.config';
-import { uninstallPlugin, updatePermalinkStructure, deactivatePlugin } from "./commands";
+import { uninstallPlugin, updatePermalinkStructure, deactivatePlugin, switchToDefaultTheme } from "./commands";
 
 /**
  * Utility class for interacting with a Playwright Page instance in WordPress testing.
@@ -583,6 +583,9 @@ export class PageUtils {
         // Reset permalink structure.
         await updatePermalinkStructure('/%postname%/'); 
 
+        // Switch to "Twenty Twenty" theme.
+        await switchToDefaultTheme('twentytwenty');
+
         // Remove WP Rocket from UI if on local run is explicitly parsed.
         if ( process.env.npm_config_env !== undefined && process.env.npm_config_env === 'local' ) {
             // Start the process to remove wp-rocket.