Add jshint for javascript linting

Added nodeenv as a test requirement.

Added a jshint environment to tox.ini, which installs node.js into the
python virtual environment with nodeenv, installs jshint using npm,
and calls runtest.sh to run the tests.

runtest.sh now supports the -j|--jshint flags to run jshint on the
javascript files. jshint must be installed before running runtest.sh

The documentation also got updated to include some info about testing.

Change-Id: I3e7dcea481806eddc10625fe353ac9092b30573a
Partial-Bug: #1282961

HACKING.rst

@@ -1,5 +1,5 @@
 Contributing
-------------
+============
 
 The code repository is located at `OpenStack <https://github.com/openstack>`__.
 Please go there if you want to check it out:
@@ -24,6 +24,34 @@ If you're interested in the code, here are some key places to start:
 * `tuskar_ui/infrastructure <https://github.com/openstack/tuskar-ui/tree/master/tuskar_ui/infrastructure>`_
   - The Tuskar UI code is contained within this directory.
 
+Running tests
+=============
+
+There are several ways to run tests for tuskar-ui.
+
+Using ``tox``:
+
+    This is the easiest way to run tests. When run, tox installs dependencies,
+    prepares the virtual python environment, then runs test commands. The gate
+    tests in gerrit usually also use tox to run tests. For avaliable tox
+    environments, see ``tox.ini``.
+
+By running ``run_tests.sh``:
+
+    Tests can also be run using the ``run_tests.sh`` script, to see available
+    options, run it with the ``--help`` option. It handles preparing the
+    virtual environment and executing tests, but in contrast with tox, it does
+    not install all dependencies, e.g. ``jshint`` must be installed before
+    running the jshint testcase.
+
+Manual tests:
+
+    To manually check tuskar-ui, it is possible to run a development server
+    for tuskar-ui by running ``run_tests.sh --runserver``.
+
+    To run the server with the settings used by the test environment:
+    ``run_tests.sh --runserver 0.0.0.0:8000 --settings=tuskar_ui.test.settings``
+
 OpenStack Style Commandments
 ============================
 

run_tests.sh

@@ -27,6 +27,7 @@ function usage {
   echo "  -p, --pep8               Just run pep8"
   echo "  -t, --tabs               Check for tab characters in files."
   echo "  -y, --pylint             Just run pylint"
+  echo "  -j, --jshint             Just run jshint"
   echo "  -q, --quiet              Run non-interactively. (Relatively) quiet."
   echo "                           Implies -V if -N is not set."
   echo "  --only-selenium          Run only the Selenium unit tests"
@@ -63,6 +64,7 @@ just_pep8=0
 just_pylint=0
 just_docs=0
 just_tabs=0
+just_jshint=0
 never_venv=0
 quiet=0
 restore_env=0
@@ -94,6 +96,7 @@ function process_option {
     -N|--no-virtual-env) always_venv=0; never_venv=1;;
     -p|--pep8) just_pep8=1;;
     -y|--pylint) just_pylint=1;;
+    -j|--jshint) just_jshint=1;;
     -f|--force) force=1;;
     -t|--tabs) just_tabs=1;;
     -q|--quiet) quiet=1;;
@@ -137,6 +140,11 @@ function run_pylint {
   fi
 }
 
+function run_jshint {
+  echo "Running jshint ..."
+  jshint tuskar_ui/infrastructure/static/infrastructure
+}
+
 function run_pep8 {
   echo "Running flake8 ..."
   DJANGO_SETTINGS_MODULE=tuskar_ui.test.settings ${command_wrapper} flake8 $included_dirs
@@ -438,6 +446,12 @@ if [ $just_tabs -eq 1 ]; then
     exit $?
 fi
 
+# Jshint
+if [ $just_jshint -eq 1 ]; then
+    run_jshint
+    exit $?
+fi
+
 # Django development server
 if [ $runserver -eq 1 ]; then
     run_server

test-requirements.txt

@@ -5,6 +5,7 @@ coverage>=3.6
 django-nose
 mock>=1.0
 mox>=0.5.3
+nodeenv
 nose
 nose-exclude
 nosexcover

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,py27dj14,py27dj15,py27dj16,pep8
+envlist = py26,py27,py27dj14,py27dj15,py27dj16,pep8,selenium,jshint
 
 [testenv]
 setenv = VIRTUAL_ENV={envdir}
@@ -39,6 +39,11 @@ commands = pip install django>=1.6,<1.7
 [testenv:selenium]
 commands = /bin/bash run_tests.sh -N --only-selenium
 
+[testenv:jshint]
+commands = nodeenv -p
+           npm install jshint -g
+           /bin/bash run_tests.sh -N --jshint
+
 [tox:jenkins]
 downloadcache = ~/cache/pip