I am using eunit for some simple tests and within a test have a need to sleep for a couple of seconds, i.e. the test function flows something like this:
func_test() -> some erlang code... wait_for_2_seconds(), some more erlang code....
To implement the wait_for_2_seconds() I have tried receive after 2000 -> ok end, and timer:sleep(2000), as well as writing a simple spin wait function that just does idle recursive execution in place for 2 seconds.
All of the above basically result in my eunit test function just hanging forever and the last line printed on screen is
met_fb:request_content_ban_test...*timed out*
where met_fb is the module under test and request_content_ban_test is the test function.
The actual test function is
request_content_ban_test() -> ?debugFmt("~n~nTEST : request_content_ban", []), ok = request_content_ban(2, 1, 1, 2, 1), ok = request_content_ban(3, 1, 1, 3, 2),
% spin loop for 2 seconds spin_loop(epoch_secs(), 2),
?debugFmt("~n~nTEST : get_content_to_review", []), Now = epoch_secs(), [2,3] = get_content_to_review(1, 1, Now - 120),
ok = request_content_ban(4, 1, 1, 9, 3), [4] = get_content_to_review(1, 1, Now - 1).
Would appreciate any help in figuring out what is going on here.
On Sun, Aug 16, 2009 at 3:32 PM, Amit Murthy <amit.mur...@gmail.com> wrote: > Hi,
> I am using eunit for some simple tests and within a test have a need to > sleep for a couple of seconds, i.e. the test function flows something like > this:
> func_test() -> > some erlang code... > wait_for_2_seconds(), > some more erlang code....
> To implement the wait_for_2_seconds() I have tried > receive after 2000 -> ok end, and > timer:sleep(2000), > as well as writing a simple spin wait function that just does idle > recursive execution in place for 2 seconds.
> All of the above basically result in my eunit test function just hanging > forever and the last line printed on screen is
> met_fb:request_content_ban_test...*timed out*
> where met_fb is the module under test and request_content_ban_test is the > test function.
> Seems like the default timeout for a single test is 5 seconds. I increased > it using the "timeout" test descriptor and things are OK now.
> But I still don't understand why my erlang console should just hang after > the "met_fb:request_content_ban_test...*timed out*" message is printed.
It's the eunit frontend that hangs; it's still waiting for some message from the test, and doesn't return to the shell. But as far as I know, this only happens in versions before R13B.
/Richard
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