TestWebKitAPI should detect test hangs

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Adam Roben (:aroben)]

If a test hangs, TestWebKitAPI will never exit and run-api-tests will hang forever. TestWebKitAPI should detect when a test hangs and print out a failure message.

[Adam Roben (:aroben)]

<rdar://problem/8630444>

[Dmitry Lomov]

Created attachment 93953 [details]
Adding hang-detection to run-api-tests

I returned back to running tests one-by-one and original run-api-tests output format.

[Adam Roben (:aroben)]

Comment on attachment 93953 [details]
Adding hang-detection to run-api-tests

Can we do this in two pieces? 1) Go back to running tests singly, 2) add hang detection? It's hard to review both at once.

[Dmitry Lomov]

(In reply to comment #3)
> (From update of attachment 93953 [details])
> Can we do this in two pieces? 1) Go back to running tests singly, 2) add hang detection? It's hard to review both at once.

sure - do you want a separate issue for the 1st?

[Adam Roben (:aroben)]

(In reply to comment #4)
> (In reply to comment #3)
> > (From update of attachment 93953 [details] [details])
> > Can we do this in two pieces? 1) Go back to running tests singly, 2) add hang detection? It's hard to review both at once.
> 
> sure - do you want a separate issue for the 1st?

Doesn't matter to me. Thanks!

[Dmitry Lomov]

Created attachment 94152 [details]
New, smaller patch

[Adam Roben (:aroben)]

Comment on attachment 94152 [details]
New, smaller patch

View in context: https://bugs.webkit.org/attachment.cgi?id=94152&action=review

> Tools/Scripts/run-api-tests:177
> +        eval {
> +            local $SIG{ALRM} = sub { die "alarm\n" };
> +            alarm $timeout;
> +            waitpid($pid, 0);
> +            alarm 0;
> +            $result = $?;
> +        };
> +        if ($@) {
> +            die unless $@ eq "alarm\n";
> +            kill SIGTERM, $pid or kill SIGKILL, $pid;
> +            $timedOut = 1;
> +        };

It's too bad we can't share more of this code between Mac and Windows.

No need for the semicolon after the if braces.

> Tools/Scripts/run-api-tests:196
> +        if ($@) {
> +            die unless $@ eq "alarm\n";
> +            $timedOut = 1;
> +        };

No need for the semicolon after the closing brace.

[WebKit Commit Bot]

Comment on attachment 94152 [details]
New, smaller patch

Clearing flags on attachment: 94152

Committed r86922: <http://trac.webkit.org/changeset/86922>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.