Fix typo.
Handle file closure.
When the child exits, it closes its end of the pipe, but the parent's fd is still open. Close the parent's end of the pipe, to force the run loop to exit.
Comment out sleeps to make the test go faster.
Added blurb on how to run a single test.
Don't try to run http_server_test in the automated testsuite.
Check for inet_pton.
Check for HAVE_INET_PTON.
Specify the directory containing the test.
Check is_valid() on info.