tox.ini: add package target

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = coverage, nocoverage
+envlist = coverage, nocoverage, package
 
 [testenv:coverage]
 usedevelop = true
@@ -20,3 +20,11 @@ deps = pytest
     pytest-random
 commands =
     py.test {posargs} tests
+
+[testenv:package]
+install_command = pip install --pre --find-links https://jenkins.entrouvert.org/packages/ {opts} {packages}
+deps = setuptools
+  pip
+  eobuilder
+commands =
+  sh -c "sudo -u eobuilder -E env HOME=/var/lib/eobuilder PATH=$PATH $VIRTUAL_ENV/bin/eobuilder-ctl -d wheezy,jessie `pwd`"