view sub_filter.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
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for sub filter.

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

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 rewrite sub proxy/)->plan(30)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        sub_filter_types *;
        sub_filter foo bar;

        location / {
        }

        location /once {
            return 200 $arg_b;
        }

        location /many {
            sub_filter_once off;
            return 200 $arg_b;
        }

        location /complex {
            sub_filter abac _replaced;
            return 200 $arg_b;
        }

        location /complex2 {
            sub_filter ababX _replaced;
            return 200 $arg_b;
        }

        location /complex3 {
            sub_filter aab _replaced;
            return 200 $arg_b;
        }

        location /single {
            sub_filter A B;
            return 200 $arg_b;
        }

        location /single/many {
            sub_filter A B;
            sub_filter_once off;
            return 200 $arg_b;
        }

        location /var/string {
            sub_filter X$arg_a _replaced;
            return 200 $arg_b;
        }

        location /var/replacement {
            sub_filter aab '${arg_a}_replaced';
            return 200 $arg_b;
        }

        location /lm {
            sub_filter_last_modified on;
            proxy_pass http://127.0.0.1:8081/;
        }
    }

    server {
        listen       127.0.0.1:8081;
        server_name  localhost;
    }
}

EOF

$t->write_file('foo.html', 'foo');
$t->write_file('foo_uc.html', 'FOO');
$t->write_file('foofoo.html', 'foofoo');
$t->run();

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

like(http_get('/foo.html'), qr/bar/, 'sub_filter');
like(http_get('/foo_uc.html'), qr/bar/, 'sub_filter caseless');
like(http_get('/foofoo.html'), qr/barfoo/, 'once default');

like(http_get('/once?b=foofoo'), qr/barfoo/, 'once');
like(http_get('/many?b=foofoo'), qr/barbar/, 'many');
like(http_get('/many?b=fo'), qr/fo/, 'incomplete');
like(http_get('/many?b=foofo'), qr/barfo/, 'incomplete long');

like(http_get('/complex?b=abac'), qr/_replaced/, 'complex');
like(http_get('/complex?b=abaabac'), qr/aba_replaced/, 'complex 1st char');
like(http_get('/complex?b=ababac'), qr/replaced/, 'complex 2nd char');
like(http_get('/complex2?b=ababX'), qr/_replaced/, 'complex2');
like(http_get('/complex2?b=abababX'), qr/ab_replaced/, 'complex2 long');
like(http_get('/complex3?b=aab'), qr/_replaced/, 'complex3 aab in aab');
like(http_get('/complex3?b=aaab'), qr/a_replaced/, 'complex3 aab in aaab');
like(http_get('/complex3?b=aaaab'), qr/aa_replaced/, 'complex3 aab in aaaab');

like(http_get('/single?b=A'), qr/B/, 'single only');
like(http_get('/single?b=AA'), qr/BA/, 'single begin');
like(http_get('/single?b=CAAC'), qr/CBAC/, 'single middle');
like(http_get('/single?b=CA'), qr/CB/, 'single end');

like(http_get('/single/many?b=A'), qr/B/, 'single many only');
like(http_get('/single/many?b=AA'), qr/BB/, 'single many begin');
like(http_get('/single/many?b=CAAC'), qr/CBBC/, 'single many middle');
like(http_get('/single/many?b=CA'), qr/CB/, 'single many end');

like(http_get('/var/string?a=foo&b=Xfoo'), qr/_replaced/, 'complex string');
like(http_get('/var/string?a=foo&b=XFOO'), qr/_replaced/,
	'complex string caseless');
like(http_get('/var/string?a=abcdefghijklmnopq&b=Xabcdefghijklmnopq'),
	qr/_replaced/, 'complex string long');

like(http_get('/var/replacement?a=ee&b=aaab'), qr/aee_replaced/,
	'complex replacement');

unlike(http_get('/foo.html'), qr/(Last-Modified|ETag)/, 'no last modified');
like(http_get('/lm/foo.html'), qr/Last-Modified/, 'last modified');
like(http_get('/lm/foo.html'), qr!ETag: W/"[^"]+"!, 'last modified weak');

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