Source

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

public function test_constants( $constant, $value ) {
		$acceptable_values = (array) $value;

		if ( defined( $constant ) && ! in_array( constant( $constant ), $acceptable_values, true ) ) {
			return array(
				'description' => sprintf(
					/* translators: %s: Name of the constant used. */
					__( 'The %s constant is defined and enabled.' ),
					"<code>$constant</code>"
				),
				'severity'    => 'fail',
			);
		}
	}