I have an alpha female basenji and brought a newborn into our family. I was in the hospital for four days (my in laws stayed with dog and horse), when we came home, we had my Mom bring her new boyfriend. He was a great distraction, but also allowed me some alone time with Cricket. When they left, she noticed the baby in the bassinet and was a bit concerned.
She adapted to the baby, but I don't leave them alone just in case. Cricket is not nearly as jealous as she was, now that he drops food for her at the table, but she did get a bit jealous for a few weeks.
While I was pregnant, I was told that 'the test' was to play baby crying videos on YouTube. How the dog reacts will tell you how they will interact with the baby. Cricket beat the crap out of my phone when I tried… So not a great test!