If --url flag is missing, the command fails with unclear error message

[pierrecamilleri]

The command "pscovoit test" uses the URL to pass the query URL. This flag is not checked, so that a missing --url flag results in unclear error message.

In addition to checking that an URL is passed, it would probably be relevant to pass the URL as argument, and not as flag, which is anyway more common in other tools (curl, restish,...)