Add tox.ini, skip server tests if Swift tests not available, fix import

test_rados_server.py requires swift/test to be installed. Skip this
test if the test module is not available.

Also fixed a wrong import for RadosFileSystem.

swift_ceph_backend/rados_server.py

@@ -27,9 +27,10 @@ from swift.common.bufferedhttp import http_connect
 from swift.common.exceptions import ConnectionTimeout
 
 from swift.common.http import is_success
-from swift.obj.rados_diskfile import RadosFileSystem
 from swift.obj import server
 
+from swift_ceph_backend.rados_diskfile import RadosFileSystem
+
 
 class ObjectController(server.ObjectController):
     """

tests/test_rados_server.py

@@ -23,8 +23,12 @@ sys.modules['rados'] = MOCK_RADOS
 
 import cStringIO
 import unittest
+try:
     from test.unit.proxy import test_server
     from test.unit.proxy.test_server import teardown
+except ImportError:
+    import nose.plugins.skip as skip
+    raise skip.SkipTest("Swift test environ not installed")
 from swift_ceph_backend import rados_server
 
 

tox.ini

@@ -0,0 +1,43 @@
+[tox]
+envlist = py26,py27,pep8
+minversion = 1.6
+skipsdist = True
+
+[testenv]
+usedevelop = True
+install_command = pip install {opts} {packages}
+deps =
+  https://launchpad.net/swift/icehouse/1.13.1/+download/swift-1.13.1.tar.gz
+commands = nosetests {posargs:tests}
+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
+
+[testenv:venv]
+commands = {posargs}
+
+[testenv:cover]
+setenv = VIRTUAL_ENV={envdir}
+         NOSE_WITH_COVERAGE=1
+         NOSE_COVER_BRANCHES=1
+         NOSE_COVER_HTML=1
+         NOSE_COVER_HTML_DIR={toxinidir}/cover
+
+[tox:jenkins]
+downloadcache = ~/cache/pip
+
+[flake8]
+# follow the same style guidelines with swift
+ignore = H
+select = H102,H103,H201,H501,H903
+exclude = .venv,.git,.tox,dist,doc,*egg,build
+show-source = True