break out coverage run

tox.ini

@@ -1,16 +1,36 @@
 [tox]
 envlist = 
-    py24,py25,py26,py27,jython,pypy
+    py24,py25,py26,py27,jython,pypy,cover
+
 [testenv]
 commands = 
-    python setup.py nosetests --with-xunit --with-xcoverage
+    python setup.py test -q
+# if we ever want to run the paster template tests, we could also use:
 #    python template_tests.py
-deps = Sphinx
-       WebTest
-       repoze.sphinx.autointerface
-       virtualenv
-       nose
-       coverage==3.3
-       nosexcover
+# they take forever, though
+deps =
+    Sphinx
+    WebTest
+    repoze.sphinx.autointerface
+    virtualenv
+
+[testenv:cover]
+basepython =
+    python2.6
+commands = 
+    python setup.py nosetests --with-xunit --with-xcoverage
+deps =
+    Sphinx
+    WebTest
+    repoze.sphinx.autointerface
+    virtualenv
+    nose
+    coverage<3.4
+    nosexcover
+
+
+# we separate coverage into its own testenv because a) "last run wins" wrt
+# cobertura jenkins reporting and b) pypy and jython can't handle any
+# combination of versions of coverage and nosexcover that i can find.
+# coverage <3.4 is required by nosexcover 1.0.4.
 
-# coverage <3.4 required by nosexcover