Site Health: Use WP_Automatic_Updater::is_disabled() to check wheth…

…er automatic updates are disabled.

The previous check for `DISALLOW_FILE_MODS` and `AUTOMATIC_UPDATER_DISABLED` constants didn't always provide accurate results.

Props Clorith, kraftner, afragen.
Fixes #47869.

git-svn-id: https://develop.svn.wordpress.org/trunk@46276 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/class-wp-site-health-auto-updates.php

@@ -26,11 +26,10 @@ public function __construct() {
 	 */
 	public function run_tests() {
 		$tests = array(
-			$this->test_constants( 'DISALLOW_FILE_MODS', false ),
-			$this->test_constants( 'AUTOMATIC_UPDATER_DISABLED', false ),
 			$this->test_constants( 'WP_AUTO_UPDATE_CORE', true ),
 			$this->test_wp_version_check_attached(),
 			$this->test_filters_automatic_updater_disabled(),
+			$this->test_wp_automatic_updates_disabled(),
 			$this->test_if_failed_update(),
 			$this->test_vcs_abspath(),
 			$this->test_check_wp_filesystem_method(),
@@ -158,12 +157,36 @@ public function test_filters_automatic_updater_disabled() {
 		}
 	}
 
+	/**
+	 * Check if automatic updates are disabled.
+	 *
+	 * @since 5.3.0
+	 *
+	 * @return array|bool The test results. False if auto updates are enabled.
+	 */
+	public function test_wp_automatic_updates_disabled() {
+		if ( ! class_exists( 'WP_Automatic_Updater' ) ) {
+			require_once( ABSPATH . 'wp-admin/includes/class-wp-automatic-updates.php' );
+		}
+
+		$auto_updates = new WP_Automatic_Updater();
+
+		if ( ! $auto_updates->is_disabled() ) {
+			return false;
+		}
+
+		return array(
+			'description' => __( 'All automatic updates are disabled.' ),
+			'severity'    => 'fail',
+		);
+	}
+
 	/**
 	 * Check if automatic updates have tried to run, but failed, previously.
 	 *
 	 * @since 5.2.0
 	 *
-	 * @return array|bool The test results. false if the auto updates failed.
+	 * @return array|bool The test results. False if the auto updates failed.
 	 */
 	function test_if_failed_update() {
 		$failed = get_site_option( 'auto_core_update_failed' );
@@ -308,7 +331,7 @@ function test_check_wp_filesystem_method() {
 	 *
 	 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
 	 *
-	 * @return array|bool The test results. false if they're not writeable.
+	 * @return array|bool The test results. False if they're not writeable.
 	 */
 	function test_all_files_writable() {
 		global $wp_filesystem;
@@ -388,7 +411,7 @@ function test_all_files_writable() {
 	 *
 	 * @since 5.2.0
 	 *
-	 * @return array|bool The test results. false if it isn't a development version.
+	 * @return array|bool The test results. False if it isn't a development version.
 	 */
 	function test_accepts_dev_updates() {
 		include ABSPATH . WPINC . '/version.php'; // $wp_version; // x.y.z