Not quite - price discrimination is finding a way to take people with more money, and charge them more money. The challenge is, that prices people with less money out of the market - so price discrimination is about finding ways to justify cutting prices for some people while charging more to people who can afford more.
Examples: Student discounts, senior citizen discounts, kid's meals, and matinee prices at movie theaters are all price discrimation. A/B testing prices is... just A/B testing prices.
Though, the wise A/B price-tester does so by offering two different sales - one discounted product, and one more discounted product. This seems to minimize backlash - finding someone else got a better discount doesn't bother people as much as finding out they paid a higher price.