The South Africans, ranked 61st in the world, won one match and lost the other – beating German Women's League side Leverkusen 3-1 in Sportschule, Germany on Thursday, before losing to Olympic hosts Great Britain in Birmingham on Sunday by the same scorline.
Russia-based midfielder Nompumelelo Nyandeni's international experience was valuable, and she scored South Africa's only goal against Britain.
With the few remaining days before their departure for London, the Sasol-sponsored Banyana will brush up on the lessons learnt on tour.
"It's unfortunate that we went down to Great Britain before the start of a major tournament but we remain optimistic that we will play our hearts out when we the games begin next week," Joseph Mkhonza says.
"But it was a good exercise in that it has given us an indication of what to expect in London, and we are under no illusions that we will have to fight hard.
"We should now use the time we have to prepare ourselves mentally as we now know what lies ahead.
"The defeat hasn't damped our spirits, and we still believe we will be highly competitive against the top women's football nations, and make our country proud. The players should now be able to build from their last encounter and focus on doing well in the upcoming tournament."
South Africa will compete in Group F as part of Team SA at the Olympics. They will face Sweden (No. 4 in the world) in Coventry on July 25, Canada (No. 7) in Coventry on July 27 and Japan (No. 3) in Cardiff on July 31.
The other African representative at the Olympics, Cameroon, are in Group E alongside Great Britain, New Zealand and Brazil.
Banyana Banyana are expected back in the country on Tuesday, July 17, to round up preparations before departing for the Olympics.