Use openstack.nose_plugin for tests

With this change, we get similar nosetest output as other OpenStack projects do.

Change-Id: I0f6692e4cfef04c4fdea8a7a65ad6b73468f7c44

setup.cfg

@@ -30,3 +30,11 @@ packages =
 [entry_points]
 paste.filter_factory =
     swift3 = swift3.middleware:filter_factory
+
+[nosetests]
+exe = 1
+verbosity = 2
+detailed-errors = 1
+cover-package = swift3
+cover-html = true
+cover-erase = true

test-requirements.txt

@@ -1,4 +1,5 @@
 hacking
 sphinx
 nose
+openstack.nose_plugin
 coverage

tox.ini

@@ -11,6 +11,14 @@ deps =
   -r{toxinidir}/test-requirements.txt
 commands = nosetests {posargs:swift3/test/unit}
 setenv = VIRTUAL_ENV={envdir}
+         NOSE_WITH_OPENSTACK=1
+         NOSE_OPENSTACK_COLOR=1
+         NOSE_OPENSTACK_RED=0.05
+         NOSE_OPENSTACK_YELLOW=0.025
+         NOSE_OPENSTACK_SHOW_ELAPSED=1
+         NOSE_OPENSTACK_STDOUT=1
+         NOSE_WITH_COVERAGE=1
+         NOSE_COVER_BRANCHES=1
 
 [testenv:pep8]
 commands = flake8
@@ -22,10 +30,8 @@ commands = {posargs}
 setenv = VIRTUAL_ENV={envdir}
          NOSE_WITH_COVERAGE=1
          NOSE_COVER_BRANCHES=1
-         NOSE_COVER_PACKAGE=swift3
          NOSE_COVER_HTML=1
          NOSE_COVER_HTML_DIR={toxinidir}/cover
-         NOSE_COVER_ERASE=1
 
 [tox:jenkins]
 downloadcache = ~/cache/pip