Add test coverage measurement in tox.

Author: carljm

.coveragerc

@@ -0,0 +1,4 @@
+[run]
+branch = True
+include = djangosecure/*
+omit = djangosecure/test*.py

coverage.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+coverage erase
+tox
+coverage html

tox.ini

@@ -4,59 +4,71 @@ envlist=py25-1.2,py25-1.3,py25-1.4,py26-1.2,py26-1.3,py26-1.4,py26,py26-trunk,py
 [testenv]
 deps=
   django==1.5.1
-commands=python runtests.py
+  coverage==3.6
+commands=coverage run -a runtests.py
 
 [testenv:py25-1.2]
 basepython=python2.5
 deps=
   django==1.2.7
+  coverage==3.6
 
 [testenv:py25-1.3]
 basepython=python2.5
 deps=
   django==1.3.7
+  coverage==3.6
 
 [testenv:py25-1.4]
 basepython=python2.5
 deps=
   django==1.4.5
+  coverage==3.6
 
 [testenv:py26-1.2]
 basepython=python2.6
 deps=
   django==1.2.7
+  coverage==3.6
 
 [testenv:py26-1.3]
 basepython=python2.6
 deps=
   django==1.3.7
+  coverage==3.6
 
 [testenv:py26-1.4]
 basepython=python2.6
 deps=
   django==1.4.5
+  coverage==3.6
 
 [testenv:py26-trunk]
 basepython=python2.6
 deps=
   https://github.com/django/django/tarball/master
+  coverage==3.6
 
 [testenv:py27-1.2]
 basepython=python2.7
 deps=
   django==1.2.7
+  coverage==3.6
 
 [testenv:py27-1.3]
 basepython=python2.7
 deps=
   django==1.3.7
+  coverage==3.6
 
 [testenv:py27-1.4]
 basepython=python2.7
 deps=
   django==1.4.5
+  coverage==3.6
 
 [testenv:py27-trunk]
 basepython=python2.7
 deps=
   https://github.com/django/django/tarball/master
+  coverage==3.6