I have several dozen tests that run in completely separate DBs. With SQLite, the test suite runs through in 1 second: $ time go test github.com/sapcc/limes/.

I have several dozen tests that run in completely separate DBs. With SQLite, the test suite runs through in 1 second: $ time go test github.com/sapcc/limes/... | grep -v 'no test files' ok github.com/sapcc/limes 0.004s ok github.com/sapcc/limes/pkg/api 0.515s ok github.com/sapcc/limes/pkg/collector 0.449s ok github.com/sapcc/limes/pkg/core 0.006s I doubt that you can setup and tear down several dozen Postgreses in that time.