package apply

// ForTests points where the host writes units and unpacks daemons at directories a test owns, and
// waits nothing between its looks at a unit, until the returned function puts them back. For tests
// in other packages that apply a process — the bootstrap's, which checks that what genesis raises is
// what the controller's process takes over (novox/hq issue 223). Nothing outside a test calls it.
func ForTests(units, daemons string) (restore func()) {
	wasUnits, wasDaemons, wasSettle, wasHandover := unitDir, daemonRoot, serviceSettle, handoverSettle
	unitDir, daemonRoot, serviceSettle, handoverSettle = units, daemons, 0, 0
	return func() {
		unitDir, daemonRoot, serviceSettle, handoverSettle = wasUnits, wasDaemons, wasSettle, wasHandover
	}
}