view stream_js_variables.t @ 1752:ba6e24e38f03

Tests: improved stop_daemons() to send signal again. As was observed, it's possible that a signal to complete a uwsgi daemon can be ignored while it is starting up, which results in tests hang due to eternal waiting on child processes termination. Notably, it is seen when running tests with a high number of prove jobs on a low-profile VM against nginx with broken modules and/or configuration. To reproduce: $ TEST_NGINX_GLOBALS=ERROR prove -j16 uwsgi*.t Inspecting uwsgi under ktrace on FreeBSD confirms that a SIGTERM signal is ignored at the very beginning of uwsgi startup. It is then replaced with a default action after listen(), thus waiting until uwsgi is ready to accept new TCP connections doesn't completely solve the hang window. The fix is to retry sending a signal some time after waitpid(WNOHANG) continuously demonstrated no progress with reaping a signaled process. It is modelled after f13ead27f89c that improved stop() for nginx.
author Sergey Kandaurov <pluknet@nginx.com>
date Wed, 29 Dec 2021 22:29:23 +0300
parents 18ac4d9e5a2a
children
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#!/usr/bin/perl

# (C) Dmitry Volyntsev
# (C) Nginx, Inc.

# Tests for stream njs module, setting nginx variables.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;
use Test::Nginx::Stream qw/ stream /;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()->has(qw/stream stream_return/)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

stream {
    %%TEST_GLOBALS_STREAM%%

    js_set $test_var       test.variable;
    js_set $test_not_found test.not_found;

    js_import test.js;

    server {
        listen  127.0.0.1:8081;
        return  $test_var$status;
    }

    server {
        listen  127.0.0.1:8082;
        return  $test_not_found;
    }
}

EOF

$t->write_file('test.js', <<EOF);
    function variable(s) {
        s.variables.status = 400;
        return 'test_var';
    }

    function not_found(s) {
        try {
            s.variables.unknown = 1;
        } catch (e) {
            return 'not_found';
        }
    }

    export default {variable, not_found};

EOF

$t->try_run('no stream njs available')->plan(2);

###############################################################################

is(stream('127.0.0.1:' . port(8081))->read(), 'test_var400', 'var set');
is(stream('127.0.0.1:' . port(8082))->read(), 'not_found', 'not found set');

$t->stop();

###############################################################################