Cape Town - Kevin Magnussen feels Haas are right not to "waste money" testing at the Hungaroring along with their rivals this week.
While nine of the ten Formula 1 teams are in action over two days at the Budapest circuit, Haas have opted not to run.
Team boss Guenther Steiner explained that he felt the team had all the data they needed already after five races in six weeks.
"Instead of participating in the test in Hungary, Haas is using the time to analyse the data it received from its recent Pirelli tyre test at Silverstone, from past grands prix and from our simulator work," he said.
"Between the data our drivers have been able to gather that is directly applicable to their driving styles in our cars, and this current run of five races in six weeks, we determined our time was best spent at the factory."
Magnussen has backed his boss' call.
"I don't think we have much to test anyway," the Dane told RaceFans.net.
"In that case it’s a waste of money if you don't have everything to learn.
"Of course you can always learn but you have to balance up how much you learn versus how much you spend and we could just spend that money better in our situation."