maxmin-722727: Refactor - test command should use converters
maxmin-722727: Refactor - test command should use converters

The test command was broken because it didn't specify its output so we
assumed 'string' which was wrong. This changes the test command to do
a separate conversion step.

Signed-off-by: Joe Walker <7a17872fbb32c7d760c9a16ee3076daead11efcf@mozilla.com>

joewalker/gcli,mozilla/gcli,mozilla/gcli,mozilla/gcli,joewalker/gcli