Launch integration tests with testr

A new paramter introduced to separate unit and inegration test launch.
Since nosetests is not used anymore, it was removed from requirements.

Readme for integration tests updated.

Change-Id: I6415e2885cae8571c0adb75216d9b11c7372462a
Fixes: bug #1259927

setup.cfg

@@ -45,17 +45,6 @@ all_files = 1
 build-dir = doc/build
 source-dir = doc/source
 
-[nosetests]
-cover-package=savanna
-cover-html=true
-cover-xml=true
-cover-xml-file=coverage.xml
-cover-erase=true
-cover-inclusive=true
-verbosity=3
-detailed-errors=1
-where=savanna/tests
-
 [extract_messages]
 keywords = _ gettext ngettext l_ lazy_gettext
 mapping_file = babel.cfg

test-requirements.txt

@@ -5,12 +5,11 @@ discover
 docutils==0.9.1
 fixtures>=0.3.14
 mock>=1.0
-nose
-openstack.nose_plugin>=0.7
 oslo.sphinx
 pylint==0.25.2
 sphinx>=1.1.2,<1.2
 sphinxcontrib-httpdomain
+testtools>=0.9.32
 testrepository>=0.0.17
 unittest2
 

tox.ini

@@ -8,13 +8,7 @@ usedevelop = True
 install_command = pip install -U {opts} {packages}
 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_XUNIT=1
+    DISCOVER_DIRECTORY=savanna/tests/unit
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
@@ -23,17 +17,10 @@ commands = python setup.py test --slowest --testr-args="{posargs}"
 [testenv:integration]
 setenv =
     VIRTUAL_ENV={envdir}
-    NOSE_WITH_OPENSTACK=1
-    NOSE_OPENSTACK_COLOR=1
-    NOSE_OPENSTACK_RED=2500
-    NOSE_OPENSTACK_YELLOW=1500
-    NOSE_OPENSTACK_SHOW_ELAPSED=1
-    NOSE_OPENSTACK_STDOUT=1
-    NOSE_XUNIT=1
-commands = nosetests -w integration -x {posargs}
+    DISCOVER_DIRECTORY=savanna/tests/integration
+commands = python setup.py test --slowest --testr-args="{posargs}"
 
 [testenv:cover]
-VIRTUAL_ENV={envdir}
 commands = python setup.py testr --coverage --testr-args='{posargs}'
 
 [tox:jenkins]