Florida is a much different story, as their cases have increased the testing has not kept up, and the positive test rate has gone from 2.3% at the end of May to 12.2%
One thing that everyone should keep in mind, even if you could attribute all of the increase in confirmed cases to testing, tests don't give anyone the coronavirus. The only thing increased testing can do is give you a more accurate picture of how bad the situation is, it can't make the situation worse.