WP_Site_Health_Auto_Updates::test_if_failed_update()
Method: Checks if automatic updates have tried to run, but failed, previously.
Source: wp-admin/includes/class-wp-site-health-auto-updates.php:170
WP_Site_Health_Auto_Updates::test_vcs_abspath()
Method: Checks if WordPress is controlled by a VCS (Git, Subversion etc).
Source: wp-admin/includes/class-wp-site-health-auto-updates.php:216
WP_Site_Health_Auto_Updates::test_check_wp_filesystem_method()
Method: Checks if we can access files without providing credentials.
Source: wp-admin/includes/class-wp-site-health-auto-updates.php:286