external-failed.auth-script

linux dbus at linux run destkop

## this tests that auth of type EXTERNAL without credentials will fail

SERVER
NO_CREDENTIALS
## verify that prior to doing anything, we haven't authed as anyone
EXPECT_HAVE_NO_CREDENTIALS
SEND 'AUTH EXTERNAL USERID_HEX'
EXPECT_COMMAND REJECTED
EXPECT_STATE WAITING_FOR_INPUT
## verify that we still haven't authed as anyone
EXPECT_HAVE_NO_CREDENTIALS