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annotate 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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Maxim Dounin
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4
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5 # Tests for nginx limit_req module.
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6
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7 ###############################################################################
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8
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9 use warnings;
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10 use strict;
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11
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12 use Test::More;
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13
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14 BEGIN { use FindBin; chdir($FindBin::Bin); }
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15
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16 use lib 'lib';
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17 use Test::Nginx;
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18
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19 ###############################################################################
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20
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21 select STDERR; $| = 1;
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22 select STDOUT; $| = 1;
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23
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24 my $t = Test::Nginx->new()->plan(5);
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25
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26 $t->write_file_expand('nginx.conf', <<'EOF');
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27
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28 master_process off;
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29 daemon off;
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31 events {
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32 }
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33
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34 http {
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35 access_log off;
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36 root %%TESTDIR%%;
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37
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38 client_body_temp_path %%TESTDIR%%/client_body_temp;
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39 fastcgi_temp_path %%TESTDIR%%/fastcgi_temp;
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40 proxy_temp_path %%TESTDIR%%/proxy_temp;
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41
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42 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
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43 limit_req_zone $binary_remote_addr zone=long:10m rate=1r/m;
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44 limit_req_zone $binary_remote_addr zone=fast:10m rate=1000r/s;
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45
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46 server {
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47 listen 127.0.0.1:8080;
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48 server_name localhost;
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49 location / {
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50 limit_req zone=one burst=1 nodelay;
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51 }
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52 location /long {
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53 limit_req zone=long burst=5;
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54 }
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55 location /fast {
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56 limit_req zone=fast burst=1;
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57 }
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58 }
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59 }
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60
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61 EOF
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62
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63 $t->write_file('test1.html', 'XtestX');
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64 $t->write_file('long.html', "1234567890\n" x (1 << 16));
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65 $t->write_file('fast.html', 'XtestX');
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66 $t->run();
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68 ###############################################################################
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70 like(http_get('/test1.html'), qr/^HTTP\/1.. 200 /m, 'request');
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71 http_get('/test1.html');
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72 like(http_get('/test1.html'), qr/^HTTP\/1.. 503 /m, 'request rejected');
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73 http_get('/test1.html');
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74 http_get('/test1.html');
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75
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76 # Second request will be delayed by limit_req, make sure it isn't truncated.
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77 # The bug only manifests itself if buffer will be filled, so sleep for a while
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78 # before reading response.
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80 my $l1 = length(http_get('/long.html'));
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81 my $l2 = length(http_get('/long.html', sleep => 1.1));
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82 is($l2, $l1, 'delayed big request not truncated');
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83
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84 # make sure rejected requests are not counted, and access is again allowed
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85 # after 1/rate seconds
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87 like(http_get('/test1.html'), qr/^HTTP\/1.. 200 /m, 'rejects not counted');
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88
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89 # make sure negative excess values are handled properly
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91 http_get('/fast.html');
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92 select undef, undef, undef, 0.1;
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93 like(http_get('/fast.html'), qr/^HTTP\/1.. 200 /m, 'negative excess');
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94
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95 ###############################################################################