At my ER, we test for a number of different viruses, as appropriate. We have individual tests for influenza (A or B, as is standard) and RSV, but we have another test that we can run that we call a Respiratory Biofire test that tests for several different viruses (along with influenza and RSV) including the coronavirus strain that has been here in the US for years. We don't run this test on everyone for a number of reasons. Firstly, it costs about $1800 to run it, making it cost prohibitive for many people. Secondly, their symptoms don't warrant running that particular test. Thirdly, any result is not going to change their treatment since most of these viruses HAVE NO TREATMENT, and fourthly, it takes approximately an hour (usually closer to 90 minutes) to run this test.
I do understand the importance of testing, in regards to getting as much data and information about a new strain of a virus that is spreading around the world, but not every single person that has a cough and a sniffle needs to be tested for COVID-19 when they are otherwise healthy and well. It's a waste of time and resources. You're going to have a number of people that are negative for COVID-19, but may have rhinovirus/adenovirus/parainfluenza....none of which matters because the treatment for all of them is the same....symptom management and mitigation. You're also going to have a number of people that test positive for COVID-19 and are relatively asymptomatic, or at most....have to manage their symptoms the same way as if they had one of these other aforementioned viruses.
Wash your hands. Cover your cough. Stay home if you feel bad.