These environment variables are used to connect to the databases used for testing and contains a connection string.
SBS_TEST_SERVER_MYSQL
SBS_TEST_SERVER_POSTGRES
For example, use PowerShell to set the SBS_TEST_SERVER_MYSQL
environment variable:
[Environment]::SetEnvironmentVariable("SBS_TEST_SERVER_MYSQL", "Server=sever.local.net;Port=12345;Uid=root;Password=<strong password>;", "User")