Fix: Address CoreTest PHPUnit compatibility and remaining PHPCS issues

includes/Admin/class-admin.php

@@ -43,14 +43,15 @@ class Admin {
 	 *
 	 * @param string $hook_suffix The current admin page.
 	 * @phpcs:ignore WordPress.CodeAnalysis.UnusedFunctionParameter.Found
+	 *
 	 */
 	public function enqueue_admin_assets( $hook_suffix ) {
 		// Enqueue admin styles.
 		\wp_enqueue_style(
 			'wpst-admin-style',
 			'path/to/admin/css/admin-styles.css',
-			array(), // Dependencies
-			$this->core->get_plugin_version() // Version
+			array(), // Dependencies.
+			$this->core->get_plugin_version() // Version.
 		);
 
 		// Enqueue admin scripts.
@@ -58,7 +59,7 @@ class Admin {
 			'wpst-admin-script',
 			'path/to/admin/js/admin-scripts.js',
 			array( 'jquery' ),
-			$this->core->get_plugin_version(), // Version
+			$this->core->get_plugin_version(), // Version.
 			true
 		);
 

tests/test-core.php

@@ -20,9 +20,10 @@ class CoreTest extends \WP_Mock\Tools\TestCase {
     private $core;
 
     /**
-     * Set up test environment
+     * Set up the test environment.
      */
-    public function setUp() {
+    public function setUp(): void
+    {
         parent::setUp();
 
         // Set up mocks
@@ -33,9 +34,10 @@ class CoreTest extends \WP_Mock\Tools\TestCase {
     }
 
     /**
-     * Tear down test environment
+     * Tear down the test environment.
      */
-    public function tearDown() {
+    public function tearDown(): void
+    {
         WP_Mock::tearDown();
         parent::tearDown();
     }