annotate h2_priority.t @ 1961:fe6f22da53ec default tip

Tests: tests for usage of discarded body. The client_max_body_size limit should be ignored when the request body is already discarded. In HTTP/1.x, this is done by checking the r->discard_body flag when the body is being discarded, and because r->headers_in.content_length_n is 0 when it's already discarded. This, however, does not happen with HTTP/2 and HTTP/3, and therefore "error_page 413" does not work without relaxing the limit. Further, with proxy_pass, r->headers_in.content_length_n is used to determine length of the request body, and therefore is not correct if discarding of the request body isn't yet complete. While discarding the request body, r->headers_in.content_length_n contains the rest of the body to discard (or, in case of chunked request body, the rest of the current chunk to discard). Similarly, the $content_length variable uses r->headers_in.content_length if available, and also incorrect. The $content_length variable is used when proxying with fastcgi_pass, grpc_pass, and uwsgi_pass (scgi_pass uses the value calculated based on the actual request body buffers, and therefore works correctly).
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Apr 2024 18:55:50 +0300
parents 236d038dc04a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Sergey Kandaurov
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4 # (C) Nginx, Inc.
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5
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6 # Tests for HTTP/2 protocol with priority.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 BEGIN { use FindBin; chdir($FindBin::Bin); }
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16
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17 use lib 'lib';
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18 use Test::Nginx;
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19 use Test::Nginx::HTTP2;
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20
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21 ###############################################################################
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22
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23 select STDERR; $| = 1;
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24 select STDOUT; $| = 1;
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25
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26 my $t = Test::Nginx->new()->has(qw/http http_v2/)->plan(20)
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27 ->write_file_expand('nginx.conf', <<'EOF');
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28
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29 %%TEST_GLOBALS%%
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30
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31 daemon off;
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32
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33 events {
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34 }
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35
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36 http {
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37 %%TEST_GLOBALS_HTTP%%
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38
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39 server {
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40 listen 127.0.0.1:8080 http2;
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41 server_name localhost;
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42 }
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43 }
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44
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45 EOF
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46
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47 # suppress deprecation warning
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48
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49 open OLDERR, ">&", \*STDERR; close STDERR;
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50 $t->run();
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51 open STDERR, ">&", \*OLDERR;
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52
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53 # file size is slightly beyond initial window size: 2**16 + 80 bytes
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54
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55 $t->write_file('t1.html',
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56 join('', map { sprintf "X%04dXXX", $_ } (1 .. 8202)));
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57
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58 $t->write_file('t2.html', 'SEE-THIS');
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59
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60 ###############################################################################
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61
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62 # stream muliplexing + PRIORITY frames
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63
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64 my $s = Test::Nginx::HTTP2->new();
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65 my $sid = $s->new_stream({ path => '/t1.html' });
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66 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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67
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68 my $sid2 = $s->new_stream({ path => '/t2.html' });
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69 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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70
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71 $s->h2_priority(0, $sid);
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72 $s->h2_priority(255, $sid2);
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73
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74 $s->h2_window(2**17, $sid);
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75 $s->h2_window(2**17, $sid2);
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76 $s->h2_window(2**17);
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77
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78 my $frames = $s->read(all => [
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79 { sid => $sid, fin => 1 },
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80 { sid => $sid2, fin => 1 }
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81 ]);
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82
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83 my @data = grep { $_->{type} eq "DATA" } @$frames;
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84 is(join(' ', map { $_->{sid} } @data), "$sid2 $sid", 'weight - PRIORITY 1');
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85
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86 # and vice versa
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87
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88 $s = Test::Nginx::HTTP2->new();
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89 $sid = $s->new_stream({ path => '/t1.html' });
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90 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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91
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92 $sid2 = $s->new_stream({ path => '/t2.html' });
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93 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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94
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95 $s->h2_priority(255, $sid);
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96 $s->h2_priority(0, $sid2);
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98 $s->h2_window(2**17, $sid);
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99 $s->h2_window(2**17, $sid2);
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100 $s->h2_window(2**17);
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102 $frames = $s->read(all => [
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103 { sid => $sid, fin => 1 },
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104 { sid => $sid2, fin => 1 }
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105 ]);
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106
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107 @data = grep { $_->{type} eq "DATA" } @$frames;
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108 is(join(' ', map { $_->{sid} } @data), "$sid $sid2", 'weight - PRIORITY 2');
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109
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110 # stream muliplexing + HEADERS PRIORITY flag
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111
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112 $s = Test::Nginx::HTTP2->new();
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113 $sid = $s->new_stream({ path => '/t1.html', prio => 0 });
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114 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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115
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116 $sid2 = $s->new_stream({ path => '/t2.html', prio => 255 });
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117 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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118
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119 $s->h2_window(2**17, $sid);
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120 $s->h2_window(2**17, $sid2);
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121 $s->h2_window(2**17);
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122
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123 $frames = $s->read(all => [
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124 { sid => $sid, fin => 1 },
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125 { sid => $sid2, fin => 1 }
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126 ]);
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127
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128 @data = grep { $_->{type} eq "DATA" } @$frames;
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129 my $sids = join ' ', map { $_->{sid} } @data;
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130 is($sids, "$sid2 $sid", 'weight - HEADERS PRIORITY 1');
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131
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132 # and vice versa
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133
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134 $s = Test::Nginx::HTTP2->new();
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135 $sid = $s->new_stream({ path => '/t1.html', prio => 255 });
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136 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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137
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138 $sid2 = $s->new_stream({ path => '/t2.html', prio => 0 });
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139 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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140
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141 $s->h2_window(2**17, $sid);
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142 $s->h2_window(2**17, $sid2);
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143 $s->h2_window(2**17);
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144
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145 $frames = $s->read(all => [
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146 { sid => $sid, fin => 1 },
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147 { sid => $sid2, fin => 1 }
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148 ]);
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149
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150 @data = grep { $_->{type} eq "DATA" } @$frames;
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151 $sids = join ' ', map { $_->{sid} } @data;
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152 is($sids, "$sid $sid2", 'weight - HEADERS PRIORITY 2');
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153
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154 # 5.3.1. Stream Dependencies
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155
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156 # PRIORITY frame
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157
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158 $s = Test::Nginx::HTTP2->new();
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159
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160 $s->h2_priority(16, 3, 0);
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161 $s->h2_priority(16, 1, 3);
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162
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163 $sid = $s->new_stream({ path => '/t1.html' });
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164 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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165
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166 $sid2 = $s->new_stream({ path => '/t2.html' });
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167 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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168
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169 $s->h2_window(2**17, $sid);
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170 $s->h2_window(2**17, $sid2);
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171 $s->h2_window(2**17);
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172
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173 $frames = $s->read(all => [
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174 { sid => $sid, fin => 1 },
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175 { sid => $sid2, fin => 1 },
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176 ]);
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177
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178 @data = grep { $_->{type} eq "DATA" } @$frames;
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179 $sids = join ' ', map { $_->{sid} } @data;
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180 is($sids, "$sid2 $sid", 'dependency - PRIORITY 1');
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181
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182 # and vice versa
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183
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184 $s = Test::Nginx::HTTP2->new();
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185
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186 $s->h2_priority(16, 1, 0);
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187 $s->h2_priority(16, 3, 1);
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188
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189 $sid = $s->new_stream({ path => '/t1.html' });
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190 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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191
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192 $sid2 = $s->new_stream({ path => '/t2.html' });
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193 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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194
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195 $s->h2_window(2**17, $sid);
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196 $s->h2_window(2**17, $sid2);
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197 $s->h2_window(2**17);
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198
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199 $frames = $s->read(all => [
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200 { sid => $sid, fin => 1 },
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201 { sid => $sid2, fin => 1 },
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202 ]);
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203
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204 @data = grep { $_->{type} eq "DATA" } @$frames;
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205 $sids = join ' ', map { $_->{sid} } @data;
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206 is($sids, "$sid $sid2", 'dependency - PRIORITY 2');
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207
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208 # PRIORITY - self dependency
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209
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210 # 5.3.1. Stream Dependencies
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211 # A stream cannot depend on itself. An endpoint MUST treat this as a
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212 # stream error of type PROTOCOL_ERROR.
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213 # Instead, we respond with a connection error of type PROTOCOL_ERROR.
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214
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215 $s = Test::Nginx::HTTP2->new();
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216 $sid = $s->new_stream();
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217 $s->read(all => [{ sid => $sid, fin => 1 }]);
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218
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219 $s->h2_priority(0, $sid, $sid);
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220 $frames = $s->read(all => [{ type => 'GOAWAY' }]);
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221
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222 my ($frame) = grep { $_->{type} eq "GOAWAY" } @$frames;
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223 is($frame->{last_sid}, $sid, 'dependency - PRIORITY self - GOAWAY');
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224 is($frame->{code}, 1, 'dependency - PRIORITY self - PROTOCOL_ERROR');
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225
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226 # HEADERS PRIORITY flag, reprioritize prior PRIORITY frame records
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227
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228 $s = Test::Nginx::HTTP2->new();
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229
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230 $s->h2_priority(16, 1, 0);
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231 $s->h2_priority(16, 3, 0);
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232
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233 $sid = $s->new_stream({ path => '/t1.html', dep => 3 });
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234 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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235
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236 $sid2 = $s->new_stream({ path => '/t2.html' });
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237 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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238
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239 $s->h2_window(2**17, $sid);
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240 $s->h2_window(2**17, $sid2);
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241 $s->h2_window(2**17);
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242
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243 $frames = $s->read(all => [
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244 { sid => $sid, fin => 1 },
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245 { sid => $sid2, fin => 1 },
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246 ]);
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247
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248 @data = grep { $_->{type} eq "DATA" } @$frames;
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249 $sids = join ' ', map { $_->{sid} } @data;
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250 is($sids, "$sid2 $sid", 'dependency - HEADERS PRIORITY 1');
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251
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252 # and vice versa
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253
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254 $s = Test::Nginx::HTTP2->new();
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255
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256 $s->h2_priority(16, 1, 0);
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257 $s->h2_priority(16, 3, 0);
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258
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259 $sid = $s->new_stream({ path => '/t1.html' });
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260 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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261
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262 $sid2 = $s->new_stream({ path => '/t2.html', dep => 1 });
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263 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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264
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265 $s->h2_window(2**17, $sid);
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266 $s->h2_window(2**17, $sid2);
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267 $s->h2_window(2**17);
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268
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269 $frames = $s->read(all => [
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270 { sid => $sid, fin => 1 },
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271 { sid => $sid2, fin => 1 },
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272 ]);
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273
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274 @data = grep { $_->{type} eq "DATA" } @$frames;
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275 $sids = join ' ', map { $_->{sid} } @data;
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276 is($sids, "$sid $sid2", 'dependency - HEADERS PRIORITY 2');
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277
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278 # HEADERS - self dependency
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279
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280 $s = Test::Nginx::HTTP2->new();
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281 $sid = $s->new_stream({ dep => 1 });
1506
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282 $frames = $s->read(all => [{ type => 'GOAWAY' }]);
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283
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284 ($frame) = grep { $_->{type} eq "GOAWAY" } @$frames;
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285 is($frame->{last_sid}, 0, 'dependency - HEADERS self - GOAWAY');
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286 is($frame->{code}, 1, 'dependency - HEADERS self - PROTOCOL_ERROR');
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287
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288 # PRIORITY frame, weighted dependencies
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289
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290 $s = Test::Nginx::HTTP2->new();
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291
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292 $s->h2_priority(16, 5, 0);
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293 $s->h2_priority(255, 1, 5);
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294 $s->h2_priority(0, 3, 5);
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295
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296 $sid = $s->new_stream({ path => '/t1.html' });
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297 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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298
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299 $sid2 = $s->new_stream({ path => '/t2.html' });
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300 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
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301
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302 my $sid3 = $s->new_stream({ path => '/t2.html' });
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303 $s->read(all => [{ sid => $sid3, fin => 0x4 }]);
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304
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305 $s->h2_window(2**16, 1);
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306 $s->h2_window(2**16, 3);
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307 $s->h2_window(2**16, 5);
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308 $s->h2_window(2**16);
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309
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310 $frames = $s->read(all => [
876
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311 { sid => $sid, fin => 1 },
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312 { sid => $sid2, fin => 1 },
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313 { sid => $sid3, fin => 1 },
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314 ]);
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315
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316 @data = grep { $_->{type} eq "DATA" } @$frames;
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317 $sids = join ' ', map { $_->{sid} } @data;
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318 is($sids, "$sid3 $sid $sid2", 'weighted dependency - PRIORITY 1');
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319
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320 # and vice versa
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321
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322 $s = Test::Nginx::HTTP2->new();
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323
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324 $s->h2_priority(16, 5, 0);
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325 $s->h2_priority(0, 1, 5);
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326 $s->h2_priority(255, 3, 5);
876
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327
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328 $sid = $s->new_stream({ path => '/t1.html' });
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329 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
876
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330
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331 $sid2 = $s->new_stream({ path => '/t2.html' });
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332 $s->read(all => [{ sid => $sid2, fin => 0x4 }]);
876
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333
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334 $sid3 = $s->new_stream({ path => '/t2.html' });
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335 $s->read(all => [{ sid => $sid3, fin => 0x4 }]);
876
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336
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337 $s->h2_window(2**16, 1);
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338 $s->h2_window(2**16, 3);
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339 $s->h2_window(2**16, 5);
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340 $s->h2_window(2**16);
876
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341
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342 $frames = $s->read(all => [
876
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343 { sid => $sid, fin => 1 },
a6abbfed42c0 Tests: split HTTP/2 tests, HTTP2 package introduced.
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344 { sid => $sid2, fin => 1 },
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345 { sid => $sid3, fin => 1 },
a6abbfed42c0 Tests: split HTTP/2 tests, HTTP2 package introduced.
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346 ]);
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347
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348 @data = grep { $_->{type} eq "DATA" } @$frames;
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349 $sids = join ' ', map { $_->{sid} } @data;
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350 is($sids, "$sid3 $sid2 $sid", 'weighted dependency - PRIORITY 2');
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351
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352 # PRIORITY - reprioritization with circular dependency - after [3] removed
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353 # initial dependency tree:
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354 # 1 <- [3] <- 5
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355
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356 $s = Test::Nginx::HTTP2->new();
876
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357
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358 $s->h2_window(2**18);
876
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359
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360 $s->h2_priority(16, 1, 0);
4dc302d8e04f Tests: changed HTTP2 package to act as a class.
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361 $s->h2_priority(16, 3, 1);
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diff changeset
362 $s->h2_priority(16, 5, 3);
876
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363
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364 $sid = $s->new_stream({ path => '/t1.html' });
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365 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
876
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366
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367 $sid2 = $s->new_stream({ path => '/t1.html' });
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368 $s->read(all => [{ sid => $sid2, length => 2**16 - 1 }]);
876
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369
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370 $sid3 = $s->new_stream({ path => '/t1.html' });
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diff changeset
371 $s->read(all => [{ sid => $sid3, length => 2**16 - 1 }]);
876
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372
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diff changeset
373 $s->h2_window(2**16, $sid2);
876
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374
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375 $frames = $s->read(all => [{ sid => $sid2, fin => 1 }]);
876
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376 $sids = join ' ', map { $_->{sid} } grep { $_->{type} eq "DATA" } @$frames;
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377 is($sids, $sid2, 'removed dependency');
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378
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379 for (1 .. 40) {
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380 $s->read(all => [{ sid => $s->new_stream(), fin => 1 }]);
876
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381 }
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382
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383 # make circular dependency
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384 # 1 <- 5 -- current dependency tree before reprioritization
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385 # 5 <- 1
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386 # 1 <- 5
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387
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388 $s->h2_priority(16, 1, 5);
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389 $s->h2_priority(16, 5, 1);
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390
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391 $s->h2_window(2**16, $sid);
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392 $s->h2_window(2**16, $sid3);
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393
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394 $frames = $s->read(all => [
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395 { sid => $sid, fin => 1 },
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396 { sid => $sid3, fin => 1 },
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397 ]);
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398
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399 ($frame) = grep { $_->{type} eq "DATA" && $_->{sid} == $sid } @$frames;
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400 is($frame->{length}, 81, 'removed dependency - first stream');
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401
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402 ($frame) = grep { $_->{type} eq "DATA" && $_->{sid} == $sid3 } @$frames;
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403 is($frame->{length}, 81, 'removed dependency - last stream');
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404
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405 # PRIORITY - reprioritization with circular dependency - exclusive [5]
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406 # 1 <- [5] <- 3
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407
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408 $s = Test::Nginx::HTTP2->new();
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409
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410 $s->h2_window(2**18);
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411
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412 $s->h2_priority(16, 1, 0);
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413 $s->h2_priority(16, 3, 1);
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414 $s->h2_priority(16, 5, 1, excl => 1);
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415
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416 $sid = $s->new_stream({ path => '/t1.html' });
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417 $s->read(all => [{ sid => $sid, length => 2**16 - 1 }]);
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418
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419 $sid2 = $s->new_stream({ path => '/t1.html' });
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420 $s->read(all => [{ sid => $sid2, length => 2**16 - 1 }]);
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421
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422 $sid3 = $s->new_stream({ path => '/t1.html' });
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423 $s->read(all => [{ sid => $sid3, length => 2**16 - 1 }]);
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424
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425 $s->h2_window(2**16, $sid);
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426
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427 $frames = $s->read(all => [{ sid => $sid, fin => 1 }]);
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428 $sids = join ' ', map { $_->{sid} } grep { $_->{type} eq "DATA" } @$frames;
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429 is($sids, $sid, 'exclusive dependency - parent removed');
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430
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431 # make circular dependency
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432 # 5 <- 3 -- current dependency tree before reprioritization
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433 # 3 <- 5
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434
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435 $s->h2_priority(16, 5, 3);
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436
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437 $s->h2_window(2**16, $sid2);
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438 $s->h2_window(2**16, $sid3);
876
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439
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440 $frames = $s->read(all => [
876
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441 { sid => $sid2, fin => 1 },
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442 { sid => $sid3, fin => 1 },
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443 ]);
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444
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445 ($frame) = grep { $_->{type} eq "DATA" && $_->{sid} == $sid2 } @$frames;
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446 is($frame->{length}, 81, 'exclusive dependency - first stream');
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447
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448 ($frame) = grep { $_->{type} eq "DATA" && $_->{sid} == $sid3 } @$frames;
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449 is($frame->{length}, 81, 'exclusive dependency - last stream');
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450
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451 ###############################################################################