To do a test with dark lang , see use the update_lang url as shown here: http://edx.readthedocs.org/projects/edx-developer-guide/en/latest/internationalization/i18n.html#coverage-testing
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To do a test with dark lang , see use the update_lang url as shown here: http://edx.readthedocs.org/projects/edx-developer-guide/en/latest/internationalization/i18n.html#coverage-testing
...