Normally the tests are run on a host machine with a docker container for
the database. The docker container should be accessible via 127.0.0.1.
However there might be cases where the test execution is run in a docker
container, or the postgres server is configured to use a different
docker network, in which case the container would be accessible via some
other dns name or ip. In these cases, users can now set the TEST_DB_HOST
environment variable so the tests can connect to the postgres server.
Timothy Messier
64995854a3