annotate upstream.t @ 287:ba5b92378653

Tests: add some basic upstream tests.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 23 May 2013 19:32:55 +0400
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children 719285b89d7e
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ba5b92378653 Tests: add some basic upstream tests.
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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 upstream module and balancers.
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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()->has(qw/http proxy/)->plan(3);
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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 %%TEST_GLOBALS%%
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29
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30 daemon off;
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31
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32 events {
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33 }
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34
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35 http {
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36 %%TEST_GLOBALS_HTTP%%
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37
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38 upstream u {
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39 server 127.0.0.1:8081 max_fails=3 fail_timeout=10s;
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40 server 127.0.0.1:8082 max_fails=3 fail_timeout=10s;
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41 }
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42
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43 upstream u2 {
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44 server 127.0.0.1:8081 max_fails=3 fail_timeout=10s;
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45 server 127.0.0.1:8082 max_fails=3 fail_timeout=10s;
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46 }
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47
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48 server {
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49 listen 127.0.0.1:8080;
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50 server_name localhost;
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51
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52 location / {
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53 proxy_pass http://u;
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54 }
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55 location /close2 {
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56 proxy_pass http://u2;
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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->run_daemon(\&http_daemon, 8081);
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64 $t->run_daemon(\&http_daemon, 8082);
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65 $t->run();
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66
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67 ###############################################################################
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68
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69 is(many('/', 30), '8081: 15, 8082: 15', 'balanced');
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70
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71 # from 9 first requests to 8081, only 6 will be successfull,
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72 # 3rd, 6th, and 9th requests will fail; after this the backend
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73 # will be considered down and won't be used till fail_timeout passes
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74
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75 is(many('/close', 30), '8081: 6, 8082: 24', 'failures');
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76
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77 SKIP: {
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78 local $TODO = 'broken in 1.3.0';
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79
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80 skip 'long test', 1 unless $ENV{TEST_NGINX_UNSAFE};
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81
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82 # bug: failures counter is reset if first request in a second succeeds
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83 #
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84 # delay added to make sure first 9 requests will take more than 1s;
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85 # note that the test is racy and may unexpectedly succeed
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86
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87 is(many('/close2', 30, delay => 0.2), '8081: 6, 8082: 24', 'failures delay');
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88
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89 }
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90
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91 ###############################################################################
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92
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93 sub many {
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94 my ($uri, $count, %opts) = @_;
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95 my %ports;
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96
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97 for (1 .. 30) {
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98 if (http_get($uri) =~ /X-Port: (\d+)/) {
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99 $ports{$1} = 0 unless defined $ports{$1};
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100 $ports{$1}++;
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101 }
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102
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103 select undef, undef, undef, $opts{delay} if $opts{delay};
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104 }
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105
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106 return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports;
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107 }
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108
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109 ###############################################################################
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110
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111 sub http_daemon {
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112 my ($port) = @_;
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113 my $count = 1;
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114
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115 my $server = IO::Socket::INET->new(
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116 Proto => 'tcp',
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117 LocalHost => '127.0.0.1',
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118 LocalPort => $port,
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119 Listen => 5,
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120 Reuse => 1
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121 )
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122 or die "Can't create listening socket: $!\n";
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123
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124 while (my $client = $server->accept()) {
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125 $client->autoflush(1);
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126
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127 my $headers = '';
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128 my $uri = '';
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129
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130 while (<$client>) {
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131 $headers .= $_;
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132 last if (/^\x0d?\x0a?$/);
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133 }
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134
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135 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i;
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136
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137 if ($uri =~ 'close' && $port == 8081 && $count++ % 3 == 0) {
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138 next;
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139 }
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140
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141 print $client <<EOF;
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142 HTTP/1.1 200 OK
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143 Connection: close
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144 X-Port: $port
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145
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146 OK
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147 EOF
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148
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149 close $client;
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150 }
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151 }
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152
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Maxim Dounin <mdounin@mdounin.ru>
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