dan@guaranine:/opt/stack/tempest$ tox -eall -- -test_server_basic_opts
all develop-inst-nodeps: /opt/stack/tempest
all installed: appdirs==1.4.2,Babel==2.3.4,cffi==1.9.1,cliff==2.4.0,cmd2==0.7.0,cryptography==1.7.2,debtcollector==1.11.0,enum34==1.1.6,extras==1.0.0,fasteners==0.14.1,fixtures==3.0.0,funcsigs==1.0.2,functools32==3.2.3.post2,idna==2.3,ipaddress==1.0.18,iso8601==0.1.11,jsonschema==2.6.0,linecache2==1.0.0,monotonic==1.2,msgpack-python==0.4.8,netaddr==0.7.19,netifaces==0.10.5,os-testr==0.8.0,oslo.concurrency==3.18.0,oslo.config==3.22.0,oslo.context==2.12.1,oslo.i18n==3.12.0,oslo.log==3.20.1,oslo.serialization==2.16.0,oslo.utils==3.22.0,packaging==16.8,paramiko==2.1.2,pbr==1.10.0,positional==1.1.1,prettytable==0.7.2,pyasn1==0.2.3,pycparser==2.17,pyinotify==0.9.6,pyparsing==2.1.10,python-dateutil==2.6.0,python-mimeparse==1.6.0,python-subunit==1.2.0,pytz==2016.10,PyYAML==3.12,rfc3986==0.4.1,six==1.10.0,stevedore==1.20.0,-e git://git.openstack.org/openstack/tempest.git@13a7fec7592236a1b2a5510d819181d8fe3f694e#egg=tempest,testrepository==0.0.20,testtools==2.2.0,traceback2==1.4.0,unicodecsv==0.14.1,unittest2==1.1.0,urllib3==1.20,wrapt==1.10.8
all runtests: PYTHONHASHSEED='540977848'
all runtests: commands[0] | find . -type f -name *.pyc -delete
all runtests: commands[1] | tempest run --regex -test_server_basic_opts
usage: tempest run [-h] [--workspace WORKSPACE]
                   [--workspace-path WORKSPACE_PATH]
                   [--config-file CONFIG_FILE] [--smoke | --regex REGEX]
                   [--whitelist-file WHITELIST_FILE | --blacklist-file BLACKLIST_FILE]
                   [--list-tests] [--concurrency CONCURRENCY]
                   [--parallel | --serial] [--subunit]
tempest run: error: argument --regex/-r: expected one argument