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comparison limit-req.t @ 103:4ae2198b97ec

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Tests: limit_req tests for 0.8.18 changes and bug. 1. Make sure rejected requests are not counted, as leaky bucket algorithm suggests (finally correctly done in 0.8.18). 2. Make sure negative excess values are handled properly (bug appeared in 0.8.18, fixed in 0.8.19).
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 09 Oct 2009 21:05:42 +0400
parents 506586cc2f3b
children 1c0ec30614c6
comparison
equal deleted inserted replaced
102:9f723d3ba52d 103:4ae2198b97ec
19 ############################################################################### 19 ###############################################################################
20 20
21 select STDERR; $| = 1; 21 select STDERR; $| = 1;
22 select STDOUT; $| = 1; 22 select STDOUT; $| = 1;
23 23
24 my $t = Test::Nginx->new()->plan(3); 24 my $t = Test::Nginx->new()->plan(5);
25 25
26 $t->write_file_expand('nginx.conf', <<'EOF'); 26 $t->write_file_expand('nginx.conf', <<'EOF');
27 27
28 master_process off; 28 master_process off;
29 daemon off; 29 daemon off;
37 37
38 client_body_temp_path %%TESTDIR%%/client_body_temp; 38 client_body_temp_path %%TESTDIR%%/client_body_temp;
39 fastcgi_temp_path %%TESTDIR%%/fastcgi_temp; 39 fastcgi_temp_path %%TESTDIR%%/fastcgi_temp;
40 proxy_temp_path %%TESTDIR%%/proxy_temp; 40 proxy_temp_path %%TESTDIR%%/proxy_temp;
41 41
42 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/m; 42 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
43 limit_req_zone $binary_remote_addr zone=long:10m rate=1r/m; 43 limit_req_zone $binary_remote_addr zone=long:10m rate=1r/m;
44 limit_req_zone $binary_remote_addr zone=fast:10m rate=1000r/s;
44 45
45 server { 46 server {
46 listen 127.0.0.1:8080; 47 listen 127.0.0.1:8080;
47 server_name localhost; 48 server_name localhost;
48 location / { 49 location / {
49 limit_req zone=one burst=1 nodelay; 50 limit_req zone=one burst=1 nodelay;
50 } 51 }
51 location /long { 52 location /long {
52 limit_req zone=long burst=5; 53 limit_req zone=long burst=5;
53 } 54 }
55 location /fast {
56 limit_req zone=fast burst=1;
57 }
54 } 58 }
55 } 59 }
56 60
57 EOF 61 EOF
58 62
59 $t->write_file('test1.html', 'XtestX'); 63 $t->write_file('test1.html', 'XtestX');
60 $t->write_file('long.html', "1234567890\n" x (1 << 16)); 64 $t->write_file('long.html', "1234567890\n" x (1 << 16));
65 $t->write_file('fast.html', 'XtestX');
61 $t->run(); 66 $t->run();
62 67
63 ############################################################################### 68 ###############################################################################
64 69
65 like(http_get('/test1.html'), qr/^HTTP\/1.. 200 /m, 'request'); 70 like(http_get('/test1.html'), qr/^HTTP\/1.. 200 /m, 'request');
66 http_get('/test1.html'); 71 http_get('/test1.html');
67 like(http_get('/test1.html'), qr/^HTTP\/1.. 503 /m, 'request rejected'); 72 like(http_get('/test1.html'), qr/^HTTP\/1.. 503 /m, 'request rejected');
73 http_get('/test1.html');
74 http_get('/test1.html');
68 75
69 # Second request will be delayed by limit_req, make sure it isn't truncated. 76 # Second request will be delayed by limit_req, make sure it isn't truncated.
70 # The bug only manifests itself if buffer will be filled, so sleep for a while 77 # The bug only manifests itself if buffer will be filled, so sleep for a while
71 # before reading response. 78 # before reading response.
72 79
73 my $l1 = length(http_get('/long.html')); 80 my $l1 = length(http_get('/long.html'));
74 my $l2 = length(http_get('/long.html', sleep => 1.1)); 81 my $l2 = length(http_get('/long.html', sleep => 1.1));
75 is($l2, $l1, 'delayed big request not truncated'); 82 is($l2, $l1, 'delayed big request not truncated');
76 83
84 # make sure rejected requests are not counted, and access is again allowed
85 # after 1/rate seconds
86
87 like(http_get('/test1.html'), qr/^HTTP\/1.. 200 /m, 'rejects not counted');
88
89 # make sure negative excess values are handled properly
90
91 http_get('/fast.html');
92 select undef, undef, undef, 0.1;
93 like(http_get('/fast.html'), qr/^HTTP\/1.. 200 /m, 'negative excess');
94
77 ############################################################################### 95 ###############################################################################