WP_Site_Health_Auto_Updates::test_wp_version_check_attached() WordPress Method

	public function test_wp_version_check_attached() {
		if ( ( ! is_multisite() || is_main_site() && is_network_admin() )
			&& ! has_filter( 'wp_version_check', 'wp_version_check' )
		) {
			return array(
				'description' => sprintf(
					/* translators: %s: Name of the filter used. */
					__( 'A plugin has prevented updates by disabling %s.' ),
					'<code>wp_version_check()</code>'
				),
				'severity'    => 'fail',
			);
		}
	}