The 19-year-old, who was appointed development driver in November, will be at the wheel of the new VJM09 car on two of the four days of the first pre-season test at Barcelona's Circuit de Catalunya.
Mexican Sergio Perez and Germany's Nico Hulkenberg, who will race for the team in the season starting on March 20, will each have one day of testing.
Teams more usually entrust their precious new car to an experienced race driver, who can compare it to the previous year's model, for the first proper day of testing although sometimes commercial considerations come first.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"Blimey. He's got to be bringing some serious cash with him to take up a seat for 1/4 of pre-season testing," commented NBC's pitlane reporter Will Buxton on Twitter.
Celis drove a Formula One car for the first time in Abu Dhabi in December when he did 65 laps of the Yas Marina circuit. Hulkenberg also drove the car that day.
Force India said then that Celis would take part in seven Friday practise sessions at grand prix weekends in the season that starts in Australia next month.
"He's the reserve and he's going to be doing a lot of Friday practise sessions," said a team spokesman. "He needs to get some miles under his belt and experience the car."
(Reporting by Alan Baldwin; Editing by Tony Jimenez)
