Add support for venv-based test run with tox.

* Adds tox config
   - based on the config from python-quantumclient and updated for
     test, pep8 and coverage execution as per nova's run_tests.sh.
 * Adds nosetests defaults in setup.cfg
 * Adds runtime dependencies in tools/pip-requires
   - dependencies were gathered by referencing the packages used in
     creation of a Swift All In One.  Versions were determined by
     checking the swift-core/trunk ppa or, failing that, the version
     available in lucid.
 * Adds test dependencies in tools/test-requires
 * Updates swift/common/middleware/formpost.py for pep8 compliance
 * Adds instructions for executing the tests with Tox to the
   developer_guidelines
 * Adds instructions for installing openstack.nose_plugin to
   developer_saio
 * Fixes bug 909177

Change-Id: I5407924d2181e9ab335aaf76bf30c8d40deccbb4

.functests

@@ -1,4 +1,4 @@
 #!/bin/bash
 
-nosetests test/functional --exe $@
-nosetests test/functionalnosetests --exe $@
+nosetests test/functional $@
+nosetests test/functionalnosetests $@

.gitignore

@@ -6,3 +6,4 @@ ChangeLog
 .coverage
 swift.egg-info
 .DS_Store
+.tox

.probetests

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-nosetests test/probe --exe
+nosetests test/probe

.unittests

@@ -1,4 +1,4 @@
 #!/bin/bash
 
-nosetests test/unit --exe --with-coverage --cover-package swift --cover-erase $@
+nosetests test/unit --with-coverage --cover-package swift --cover-erase $@
 rm -f .coverage

doc/source/development_guidelines.rst

@@ -12,6 +12,32 @@ here: http://www.python.org/dev/peps/pep-0008/
 There is a useful pep8 command line tool for checking files for pep8
 compliance which can be installed with ``easy_install pep8``.
 
+------------------
+Testing Guidelines
+------------------
+
+Swift has a comprehensive suite of tests that are run on all submitted code,
+and it is recommended that developers execute the tests themselves to 
+catch regressions early.  Developers are also expected to keep the
+test suite up-to-date with any submitted code changes.
+
+Swift's suite of unit tests can be executed in an isolated environment
+with Tox: http://tox.testrun.org/
+
+To execute the unit tests:
+
+* Install Tox:
+
+  - `pip install tox`
+
+* Run Tox from the root of the swift repo:
+
+  - `tox`
+
+* Optionally, run only specific tox builds:
+
+  - `tox -e pep8,py26`
+
 ------------------------
 Documentation Guidelines
 ------------------------

doc/source/development_saio.rst

@@ -32,6 +32,7 @@ Installing dependencies and the core code
      python-coverage python-dev python-nose python-setuptools python-simplejson
      python-xattr sqlite3 xfsprogs python-webob python-eventlet
      python-greenlet python-pastedeploy python-netifaces`
+  #. `pip install openstack.nose_plugin`
   #. Install anything else you want, like screen, ssh, vim, etc.
 
 * On Fedora, log in as root and do:
@@ -41,6 +42,7 @@ Installing dependencies and the core code
   #. `yum install xinetd rsync`
   #. `yum install memcached`
   #. `yum install python-netifaces python-nose`
+  #. `pip install openstack.nose_plugin`
 
   This installs all necessary dependencies, and also creates user `swift`
   and group `swift`. So, `swift:swift` ought to be used in every place where

setup.cfg

@@ -21,3 +21,13 @@ input_file = locale/swift.pot
 keywords = _ l_ lazy_gettext
 mapping_file = babel.cfg
 output_file = locale/swift.pot
+
+[nosetests]
+exe=1
+verbosity=2
+detailed-errors=1
+with-openstack=1
+openstack-red=0.05
+openstack-yellow=0.025
+openstack-show-elapsed=1
+openstack-color=1

swift/common/middleware/formpost.py

@@ -258,7 +258,7 @@ class _CappedFileLikeObject(object):
                           EOFError.
     """
 
-    def __init__(self, fp,  max_file_size):
+    def __init__(self, fp, max_file_size):
         self.fp = fp
         self.max_file_size = max_file_size
         self.amount_read = 0

tools/pip-requires

@@ -0,0 +1,8 @@
+WebOb==1.0.8
+configobj==4.7.1
+eventlet==0.9.15
+greenlet==0.3.1
+netifaces==0.6
+pastedeploy==1.3.3
+simplejson==2.0.9
+xattr==0.4

tools/test-requires

@@ -0,0 +1,5 @@
+coverage
+nose
+nosexcover
+openstack.nose_plugin
+pep8==0.6.1

tox.ini

@@ -0,0 +1,41 @@
+[tox]
+envlist = py26,py27,pep8
+
+[testenv]
+deps =
+  -r{toxinidir}/tools/pip-requires
+  -r{toxinidir}/tools/test-requires
+commands = nosetests test/unit []
+
+[testenv:pep8]
+deps = pep8==0.6.1
+commands =
+  pep8 --repeat --show-pep8 --show-source --ignore=W602 swift tools setup.py
+
+[testenv:cover]
+commands =
+  coverage erase
+  nosetests test/unit --with-coverage --cover-html --cover-erase \
+    --cover-package=swift
+  /bin/rm -f .coverage
+
+[testenv:hudson]
+downloadcache = ~/cache/pip
+
+[testenv:jenkins26]
+basepython = python2.6
+deps = file://{toxinidir}/.cache.bundle
+
+[testenv:jenkins27]
+basepython = python2.7
+deps = file://{toxinidir}/.cache.bundle
+
+[testenv:jenkinspep8]
+deps = file://{toxinidir}/.cache.bundle
+commands =
+  pep8 --repeat --show-pep8 --show-source --ignore=W602 swift tools setup.py
+
+[testenv:jenkinscover]
+deps = file://{toxinidir}/.cache.bundle
+commands =
+  nosetests test/unit --with-xcoverage --cover-erase --cover-package=swift