add tox to test against multiple python versions

.gitignore

@@ -6,4 +6,5 @@ crate.egg-info
 dist
 build
 *.pyc
-.idea/
+.idea/
+.tox/

DEVELOP.rst

@@ -0,0 +1,40 @@
+========================
+Crate-Python Development
+========================
+
+
+Development Setup
+=================
+
+To get a development environment crate-python uses `buildout
+<https://pypi.python.org/pypi/zc.buildout/2.2.1>`_
+
+Run `bootstrap.py`::
+
+    python bootstrap.py
+
+And afterwards run buildout::
+
+    ./bin/buildout -N
+
+Running Tests
+=============
+
+The tests are run using the `zope.testrunner
+<https://pypi.python.org/pypi/zope.testrunner/4.4.1>`_::
+
+    ./bin/test
+
+This will run all tests using the python interpreter that was used to
+bootstrap buildout.
+
+In addition to that it is also possible to run the test case against multiple
+python interpreter using `tox <http://testrun.org/tox/latest/>`_::
+
+    ./bin/tox
+
+This required the interpreters `python2.7`, `python3.3` and `pypy` to be
+available in `$PATH`. To run against a single interpreter tox can also be
+invoked like this::
+
+    ./bin/tox -e py33

buildout.cfg

@@ -9,6 +9,11 @@ extensions = lovely.buildouthttp
 parts = test
         scripts
         crate
+        tox
+
+[tox]
+recipe = zc.recipe.egg:script
+eggs = tox
 
 [scripts]
 recipe = zc.recipe.egg:script

tox.ini

@@ -0,0 +1,11 @@
+[tox]
+envlist = pypy, py27, py33
+
+
+[testenv]
+usedevelop = True
+deps =
+    zope.testrunner
+    lovely.testlayers
+commands =
+    zope-testrunner -c --test-path=src

versions.cfg

@@ -7,7 +7,7 @@ zc.recipe.egg = 2.0.0
 zc.recipe.testrunner = 2.0.0
 requests = 1.2.3
 setuptools = 1.1
-lovely.testlayers = 0.5.3
+lovely.testlayers = 0.6.0
 crate_server = 0.10.1
 
 hexagonit.recipe.download = 1.7
@@ -28,3 +28,7 @@ zope.interface = 4.0.5
 # Required by:
 # zc.recipe.testrunner==2.0.0
 zope.testrunner = 4.4.1
+
+py = 1.4.15
+tox = 1.6.1
+virtualenv = 1.10.1