Troubleshooting Parse Errors when running robot tests on Plone - plone

Question

I'm really not sure what's wrong with my setup. The robot tests were added recently and we've seen them run successfully on another developer's OS X machine.
I'm attempting to run the same robot tests on an Ubuntu machine with Plone and Firefox installed. The package is https://github.com/collective/collective.academicprogrammes
I had to add plone.app.robotframework to the [test] section of my develop.cfg file.
This is what my develop.cfg looks like now:
[sources]
collective.academicprogrammes = git git#github.com:collective/collective.academicprogrammes.git
[buildout]
test-packages =
collective.academicprogrammes[test]
extends =
buildout.cfg
extensions +=
mr.developer
eggs +=
Products.DocFinderTab
plone.reload
collective.academicprogrammes
parts +=
test
diazotools
zopeskel
robot
always-checkout = force
sources = sources
auto-checkout = *
[test]
recipe = zc.recipe.testrunner
defaults = ['--exit-with-status',
'--auto-color', '--auto-progress']
eggs =
${buildout:eggs}
${buildout:test-packages}
[zopeskel]
recipe = zc.recipe.egg
eggs =
ZopeSkel
Paste
PasteDeploy
PasteScript
zopeskel.diazotheme
zopeskel.dexterity
zest.releaser
${buildout:eggs}
[robot]
recipe = zc.recipe.egg
eggs =
Pillow
${test:eggs}
plone.app.robotframework
After running bin/buildout -c develop.cfg to install everything I
attempted to run bin/test -t robot I get the following errors:
File "parser.pxi", line 569, in
lxml.etree._ParserContext._handleParseResultDoc
(src/lxml/lxml.etree.c:74567) File "parser.pxi", line 650, in
lxml.etree._handleParseResult (src/lxml/lxml.etree.c:75458) File
"parser.pxi", line 590, in lxml.etree._raiseParseError
(src/lxml/lxml.etree.c:74791)
File "lxml.etree.pyx", line 2756, in lxml.etree.fromstring
(src/lxml/lxml.etree.c:54726) bash: syntax error near unexpected token
(' (precise)david#localhost:~/Plone/zeocluster$ File "parser.pxi",
line 1571, in lxml.etree._parseMemoryDocument
(src/lxml/lxml.etree.c:82792) bash: syntax error near unexpected token
... File "parser.pxi",
line 1450, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:81590) bash:
syntax error near unexpected token('
And it ends with:
AssertionError: Setup failed: WebDriverException: Message: 'Can\'t
load the profile. Profile Dir: /tmp/tmpqsX6Ky/webdriver-py-profilecopy
Firefox output: Gtk-Message: Failed to load module
"canberra-gtk-module"\n*** LOG addons.xpi: startup\n*** LOG
addons.xpi: checkForChanges\n*** LOG addons.xpi: No changes
found\n**********************************\n*
Call to xpconnect wrapped JSObject produced this error:
*\n[Exception... "\'[JavaScript Error: "this.updateDisplay is not a function" {file: "chrome://browser/content/search/search.xml" line:
83}]\' when calling method:
[nsIBrowserSearchInitObserver::onInitComplete]" nsresult: "0x80570021
(NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)" location: "JS frame ::
resource://gre/components/nsSearchService.js :: onSuccess :: line
3257" data:
yes]\n**********************************\n'

Answer 1

The error is two-fold. One has to do with the fact that I installed a lightweight Linux OS that didn't include all the dependencies. Specifically I had to install libcanberra.
To do this on Ubuntu I ran the following command 'sudo apt-get install libcanberra-gtk-module'. That was enough to fix the error about canberra-gtk-module.
The second issue was related to the version of Firefox used. It turns out that Selenium 2.34 is not compatible with Firefox 27 (the browser I'm using).
see:
http://selenium.googlecode.com/git/py/CHANGES
There are two options, upgrade Selenium to 2.40.0
OR
run robot browser tests against Firefox 25.
I opted to get Firefox 25 and use it when running tests.
Related information about this issue can be found here:
http://seleniumsimplified.com/problems-running-webdriver-on-firefox-26/
http://support.mozilla.org/en-US/questions/986545