After loading the bases against Juan Carlos Oviedo in the eighth inning, the Padres scratched across a pair of runs on a groundout from Ramiro Pena and a sac fly from Wil Nieves.
Cashner threw 45 pitches and didn't walk or strike out a batter. Cashner is slated right now to be the third pitcher in San Diego's starting rotation behind James Shields and Tyler Ross.
Bass, in camp on Minor League contract, is trying to make the Rangers' bullpen.
He has been a starter and a reliever in his career but was signed by the Rangers with the idea of being a starter. That was expected to be at Triple-A but his 3 1/3 scoreless innings tied Nick Tepesch for the longest by a Rangers pitcher so far this spring.
Bass is still a long shot to be in the rotation but said, "That's the way it has been my whole career. Nothing has been handed to me."
Up next: Outfielder Shin-Soo Choo, after getting a couple of days off, will be back in the lineup on Sunday when the Rangers host the Brewers at 3:05 p.m. CT in Surprise. Choo is 4-for-16 in five games this spring. Ross Ohlendorf gets the start for the Rangers. He struck out five of six batters in his last start against the Cubs.
Barry M. Bloom is a national reporter for MLB.com and writes an MLBlog, Boomskie on Baseball. Follow @boomskie on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.