Power outage/frozen meat

I had a similar issue just recently, where my apartment lost power for twelve hours before being restored. With the doors closed for the entire time, the temperature raised only a few degrees, even the milk had no difference in taste, with it only being cool as opposed to cold like usual. Like yourself, it was also at the peak of summer.

Fridges are usually pretty well insulated (as they'd have to be, or else the motors would never stop running to keep cool during the peak of summer), so outside of the eggs, if it was never opened, I wouldn't be too concerned. I only put a caveat on eggs because as someone that cant' stand eggs, I never buy them, and hence have no knowledge of how susceptible to temperature changes they are.

EDIT: Personal opinion. Do not take this as a green light to start making bacon omelettes with a big heaping glass of milk today.

I seriously doubt it. The expense and complexity of making sure there are NO pathogens in a random sample of food would be significant. And then that would be all you'd have; a statement that the tested sample had no pathogens, but who knows about the rest of the food.

Testing food in a manufacturing plant depends on the commonality of how the food has been treated; if no problems are found in the samples then you can presume no problems will be found in similarly-handled food. In your freezer, though, you may have different packagings done at different times, and when it warmed up, different parts certainly warmed to different temperatures. Finding out if one item is safe would have very little to do with whether the rest of the contents are safe.

There's also the liability of the tester; if they claimed they could tell you if your beef was safe, and then you got food poisoning, they'd be on the hook. I doubt they'd take the risk.