view proxy_merge_headers.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 196d33c2bb45
children 5ad8f0b5fa0f
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for proxy_set_header inheritance.

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

use warnings;
use strict;

use Test::More;

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

use lib 'lib';
use Test::Nginx;

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

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

my $t = Test::Nginx->new()->has(qw/http proxy cache rewrite/)->plan(7)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    proxy_cache_path   %%TESTDIR%%/cache  levels=1:2
                       keys_zone=NAME:1m;

    proxy_set_header X-Blah "blah";
    proxy_hide_header X-Hidden;

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        proxy_cache  NAME;

        location / {
            proxy_pass    http://127.0.0.1:8081;

            location /nested/ {
                proxy_pass   http://127.0.0.1:8081;
                proxy_pass_header X-Pad;
            }
        }

        location /no/ {
            proxy_pass    http://127.0.0.1:8081;
            proxy_cache   off;
        }

        location /setbody/ {
            proxy_pass    http://127.0.0.1:8081;
            proxy_set_body "body";
        }
    }

    server {
        listen       127.0.0.1:8081;
        server_name  localhost;

        location / {
            add_header X-Hidden "hidden";
            add_header X-Pad "passed";
            return 200 "ims=$http_if_modified_since;blah=$http_x_blah;";
        }
    }
}

EOF

$t->run();

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

like(http_get_ims('/'), qr/ims=;blah=blah;/,
	'if-modified-since cleared with cache');

like(http_get_ims('/no/'), qr/ims=blah;blah=blah;/,
	'if-modified-since preserved without cache');

like(http_get_ims('/setbody/'), qr/blah=blah;/,
	'proxy_set_header inherited with proxy_set_body');

unlike(http_get('/'), qr/X-Pad/, 'proxy_pass_header default');
like(http_get('/nested/'), qr/X-Pad/, 'proxy_pass_header nested');
unlike(http_get('/'), qr/X-Hidden/, 'proxy_hide_header inherited');
unlike(http_get('/nested/'), qr/X-Hidden/, 'proxy_hide_header nested');

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

sub http_get_ims {
	my ($url) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
Connection: close
If-Modified-Since: blah

EOF
}

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