The test TestInit_clientTLS cannot be run within CircleCI in its current form. This is because it's not possible to use volume mounting with the docker executor.
Because of this, the test is skipped. Running this locally shouldn't present any issues as long as you have docker set up to allow volume mounting from this directory:
go test -v -run Init_clientTLS
This may be able to be fixed if we mess with the entrypoint or the command arguments.