Wireless tests need to exit gracefully if they haven't been set up properly

[Ara Pulido]

Instead of giving just an usage error (when the user normally never uses create_connection, nor needs to know how the wireless tests are implemented), if the environment for the router ssid hasn't been properly set, it should fail gracefully and give a proper message.

This is the current error:

usage: create_connection [-h] [-S SECURITY] [-K KEY] [-U UUID] [-R RETRIES] [-I INTERVAL] ssid create_connection: error: too few arguments rm: cannot remove `/etc/NetworkManager/system-connections/': Is a directory

[Brendan Donegan (brendan-donegan)]

We need to expand the command to do some validation. It's going to make it more convoluted, but if it helps people less familiar with Checkbox then I guess it's okay

[Daniel Manrique (roadmr)]

This script no longer spits out the unfriendly error, but maybe should print a short help text explaining what it expects. Then again, the current output may be enough.

$ /usr/share/checkbox/scripts/create_connection
usage: create_connection [-h] [-U UUID] [-R RETRIES] [-I INTERVAL]
                         {wifi,mobilebroadband} ...
create_connection: error: too few arguments

[Brendan Donegan (brendan-donegan)]

We don't get many complaints about this, so I'll put it at low importance and take it off my todo list.