When I had to switch from my usual Linux dev box to Mac 10.7 recently (because of Sandy hurricane), I noticed a problem with CURL when I was running my tests through command line.
Basically CURL was just returning output to STDOUT instead of passing it to a variable as it should because of RETURNTRANSFER option in the simpletest class.
After some debugging I figured that the problem was related to the
CURLOPT_COOKIEJAR => $this->cookieFile line. I understood the idea of having clean environment for each test run, but some versions of CURL just don’t like when cookieFile is NULL.
Here is the small patch for Drupal 6:
The problem seems to be fixed in a similar way in Drupal 7 and up according to http://drupal.org/node/1671200.
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I'm Sergey Khaladzinski (@gansbrest). I regularly share tips and tricks to improve websites performance. My main focus at the moment is monitoring, servers and backend performance. If you liked this article, join my list to get updates from me in the future.