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annotate lib/Test/Nginx.pm @ 20:c57e8bd7bfc7

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Tests: running simple daemons supplied as coderef. This will allow us to write and run fake backend servers as needed. Daemons are stopped by SIGTERM when test terminates.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 26 Sep 2008 18:24:28 +0400
parents c6c36d7a4d90
children 89b00444c168
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1 package Test::Nginx;
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2
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3 # (C) Maxim Dounin
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4
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5 # Generict module for nginx tests.
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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 base qw/ Exporter /;
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14 our @EXPORT = qw/ log_in log_out http /;
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15
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16 ###############################################################################
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17
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18 use File::Temp qw/ tempdir /;
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19 use IO::Socket;
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20 use Socket qw/ CRLF /;
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21
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22 ###############################################################################
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24 sub new {
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25 my $self = {};
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26 bless $self;
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27
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28 $self->{_testdir} = tempdir(
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29 'nginx-test-XXXXXXXXXX',
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30 TMPDIR => 1,
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31 CLEANUP => not $ENV{LEAVE}
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32 )
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33 or die "Can't create temp directory: $!\n";
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34
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35 return $self;
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36 }
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37
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38 sub DESTROY {
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39 my ($self) = @_;
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40 $self->stop();
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41 }
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42
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43 sub run {
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44 my ($self, $conf) = @_;
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45
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46 my $testdir = $self->{_testdir};
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47
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48 if (defined $conf) {
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49 my $c = `cat $conf`;
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50 $self->write_file_expand('nginx.conf', $c);
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51 }
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52
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53 my $pid = fork();
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54 die "Unable to fork(): $!\n" unless defined $pid;
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55
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56 if ($pid == 0) {
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57 exec('../nginx/objs/nginx', '-c', "$testdir/nginx.conf", '-g',
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58 "pid $testdir/nginx.pid; "
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59 . "error_log $testdir/nginx-error.log debug;")
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60 or die "Unable to exec(): $!\n";
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61 }
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62
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63 # wait for nginx to start
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64
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65 sleep 1;
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66
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67 $self->{_started} = 1;
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68 return $self;
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69 }
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70
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71 sub stop() {
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72 my ($self) = @_;
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73
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74 while ($self->{_daemons} && scalar @{$self->{_daemons}}) {
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75 my $p = shift @{$self->{_daemons}};
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76 kill 'TERM', $p;
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77 wait;
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78 }
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79
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80 return $self unless $self->{_started};
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81
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82 kill 'TERM', `cat $self->{_testdir}/nginx.pid`;
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83 wait;
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84
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85 $self->{_started} = 0;
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86
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87 return $self;
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88 }
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89
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90 sub write_file($$) {
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91 my ($self, $name, $content) = @_;
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92
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93 open F, '>' . $self->{_testdir} . '/' . $name
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94 or die "Can't create $name: $!";
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95 print F $content;
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96 close F;
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97
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98 return $self;
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99 }
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100
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101 sub write_file_expand($$) {
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102 my ($self, $name, $content) = @_;
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103
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104 $content =~ s/%%TESTDIR%%/$self->{_testdir}/gms;
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105
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106 return $self->write_file($name, $content);
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107 }
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108
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109 sub run_daemon($) {
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110 my ($self, $code) = @_;
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111
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112 my $pid = fork();
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113 die "Can't fork daemon: $!\n" unless defined $pid;
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114
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115 if ($pid == 0) {
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116 $code->();
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117 exit 0;
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118 }
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119
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120 $self->{_daemons} = [] unless defined $self->{_daemons};
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121 push @{$self->{_daemons}}, $pid;
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122
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123 return $self;
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124 }
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125
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126 ###############################################################################
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127
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128 sub log_out {
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129 my ($msg) = @_;
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130 $msg =~ s/^/# >> /gm;
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131 $msg .= "\n" unless $msg =~ /\n\Z/;
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132 print $msg;
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133 }
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134
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135 sub log_in {
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136 my ($msg) = @_;
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137 $msg =~ s/^/# << /gm;
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138 $msg =~ s/([^\x20-\x7e])/sprintf('\\x%02x', ord($1)) . (($1 eq "\n") ? "\n" : '')/gmxe;
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139 $msg .= "\n" unless $msg =~ /\n\Z/;
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140 print $msg;
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141 }
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142
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143 ###############################################################################
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144
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145 sub http {
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146 my ($request) = @_;
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147 my $reply;
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148 eval {
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149 local $SIG{ALRM} = sub { die "alarm\n" };
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150 alarm(2);
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151 my $s = IO::Socket::INET->new(
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152 Proto => 'tcp',
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153 PeerHost => 'localhost:8080'
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154 );
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155 log_out($request);
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156 $s->print($request);
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157 local $/;
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158 $reply = $s->getline();
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159 log_in($reply);
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160 alarm(0);
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161 };
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162 alarm(0);
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163 if ($@) {
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164 log_in('(timeout)');
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165 return undef;
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166 }
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167 return $reply;
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168 }
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169
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170 ###############################################################################
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171
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172 1;
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173
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174 ###############################################################################