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comparison proxy_cache_lock_ssi.t @ 504:318f305a2014

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Tests: proxy_cache_lock with subrequests.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 27 Nov 2014 08:07:52 +0300
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children 5baf4b01cae4
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503:071e8941e3bf 504:318f305a2014
1 #!/usr/bin/perl
2
3 # (C) Maxim Dounin
4
5 # Tests for http proxy cache lock with subrequests.
6
7 ###############################################################################
8
9 use warnings;
10 use strict;
11
12 use Test::More;
13
14 BEGIN { use FindBin; chdir($FindBin::Bin); }
15
16 use lib 'lib';
17 use Test::Nginx qw/ :DEFAULT http_end /;
18
19 ###############################################################################
20
21 select STDERR; $| = 1;
22 select STDOUT; $| = 1;
23
24 plan(skip_all => 'win32') if $^O eq 'MSWin32';
25
26 my $t = Test::Nginx->new()->has(qw/http proxy cache ssi/)
27 ->write_file_expand('nginx.conf', <<'EOF')->plan(2);
28
29 %%TEST_GLOBALS%%
30
31 daemon off;
32
33 events {
34 }
35
36 http {
37 %%TEST_GLOBALS_HTTP%%
38
39 proxy_cache_path %%TESTDIR%%/cache levels=1:2
40 keys_zone=NAME:1m;
41
42 limit_req_zone $binary_remote_addr zone=one:1m rate=1r/m;
43
44 server {
45 listen 127.0.0.1:8080;
46 server_name localhost;
47
48 location / {
49 proxy_pass http://127.0.0.1:8081;
50 proxy_cache NAME;
51
52 proxy_cache_lock on;
53 proxy_cache_lock_timeout 100ms;
54
55 proxy_read_timeout 2s;
56 }
57
58 location = /ssi.html {
59 ssi on;
60 }
61 }
62
63 server {
64 listen 127.0.0.1:8081;
65 server_name localhost;
66 limit_req zone=one burst=5;
67 }
68
69 }
70
71 EOF
72
73 $t->write_file('ssi.html',
74 '<!--#include virtual="/active" -->' .
75 '<!--#include virtual="/locked" -->' .
76 'end'
77 );
78
79 $t->write_file('active', 'active');
80 $t->write_file('locked', 'locked');
81
82 $t->run();
83
84 ###############################################################################
85
86 # problem: if proxy cache lock wakeup happens in a an inactive
87 # subrequest, just a connection write event may not trigger any
88 # further work
89
90 # main request -> subrequest /active (waiting for a backend),
91 # -> subrequest /locked (locked by another request)
92
93 # this doesn't result in an infinite timeout as second subrequest
94 # is woken up by the postpone filter once first subrequest completes,
95 # but this is suboptimal behaviour
96
97 my $start = time();
98
99 my $s = http_get('/locked', start => 1);
100 like(http_get('/ssi.html'), qr/end/, 'cache lock ssi');
101 http_end($s);
102
103 TODO: {
104 local $TODO = 'not yet';
105
106 cmp_ok(time() - $start, '<=', 3, 'parallel execution after lock timeout');
107
108 }
109
110 ###############################################################################