Add tox.ini to be able to run tests

In addition to the tox.ini, there are some more changes
to enable testing:

- require flake8 in test-requirements.txt
- fix current pep8 errors
- add .gitignore including the .tox dir

Change-Id: I4cf9d8fc1c9a2eb4929fddb4a18a7db87481017c

.gitignore

@@ -0,0 +1,18 @@
+.coverage
+subunit.log
+.venv
+*,cover
+cover
+.testrepository
+*.pyc
+.idea
+*.sw?
+*~
+AUTHORS
+build
+dist
+pymod2pkg.egg-info
+ChangeLog
+.tox
+*.egg
+.eggs/*

.testr.conf

@@ -0,0 +1,8 @@
+[DEFAULT]
+test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
+             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
+             OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
+             OS_LOG_CAPTURE=${OS_LOG_CAPTURE:-1} \
+             ${PYTHON:-python} -m subunit.run discover -t ./ ./ $LISTOPT $IDOPTION
+test_id_option=--load-list $IDFILE
+test_list_option=--list

pymod2pkg.py

@@ -53,7 +53,7 @@ def openstack_prefix_tr(mod):
 
 RDO_PKG_MAP = [
     # This demonstrates per-dist filter
-    #SingleRule('sphinx', 'python-sphinx',
+    # SingleRule('sphinx', 'python-sphinx',
     #           distmap={'epel-6': 'python-sphinx10'}),
     SingleRule('distribute', 'python-setuptools'),
     SingleRule('pyopenssl', 'pyOpenSSL'),

test-requirements.txt

@@ -0,0 +1,4 @@
+flake8
+testrepository>=0.0.18
+testresources>=0.2.4
+testtools>=1.4.0

tests.py

@@ -49,7 +49,7 @@ class Pymod2PkgTests(unittest.TestCase):
         self.assertEqual(pymod2pkg.module2package('Babel', 'fedora'),
                          'python-babel')
         self.assertEqual(pymod2pkg.module2package('nova', 'fedora'),
-                        'openstack-nova')
+                         'openstack-nova')
 
 
 if __name__ == '__main__':

tox.ini

@@ -0,0 +1,24 @@
+[tox]
+envlist = py27,py33,py34,pypy,pep8
+minversion = 1.6
+skipsdist = True
+
+[testenv]
+usedevelop = True
+install_command = pip install -U {opts} {packages}
+setenv = VIRTUAL_ENV={envdir}
+         OS_STDOUT_NOCAPTURE=False
+         OS_STDERR_NOCAPTURE=False
+         PYTHONHASHSEED=0
+deps = -r{toxinidir}/test-requirements.txt
+commands = python setup.py testr --testr-args='{posargs}'
+
+[tox:jenkins]
+downloadcache = ~/cache/pip
+
+[testenv:pep8]
+commands = flake8
+
+[testenv:venv]
+commands = {posargs}
+