Scotland head coach Andy Robinson expects to learn more about his players when they face the world's best in November.
Two of the top three teams in the world, New Zealand and South Africa, visit Murrayfield before Scotland end their Autumn Test Series against Samoa at Pittodrie.
"Every international game is of huge importance and we're playing against the number one and number two teams in the world, back-to-back," Robinson told www.scottishrugby.org.
"We're testing ourselves against the very best in the world and you learn more when you play and challenge yourself against the best.
"These matches will require a special performance. Individually and collectively we will need to be at our very best for what would be a huge achievement in massive, back-to-back games. They're certainly not friendlies."
Robinson will be without the likes of Johnnie Beattie, who was instrumental in Scotland's summer series win in Argentina, and Chris Cusiter through injury, and he will not weaken his team any further by experimenting with the World Cup in mind.
"We're building a team for the Autumn Tests and I will pick a team to perform and a team that believes that it can win against New Zealand, South Africa and Samoa," the former England boss said.
"I'll be looking at the components needed to beat New Zealand.
"We have to improve our pace, physicality, and technical attributes - and I'll be looking for these attributes in their club performances.
"Selection will be based on previous Scotland performances, current form and tactics. Clearly a lot of the players who performed on the Argentina tour have plusses next to their names."