/usr/share/postgresql-common/t/TestLib.pm is in postgresql-common 154.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | # Common functionality for postgresql-common selftests
#
# (C) 2005-2009 Martin Pitt <mpitt@debian.org>
# (C) 2013 Christoph Berg <myon@debian.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
package TestLib;
use strict;
use Exporter;
use Test::More;
our $VERSION = 1.00;
our @ISA = ('Exporter');
our @EXPORT = qw/ps ok_dir exec_as deb_installed is_program_out
like_program_out unlike_program_out pidof pid_env check_clean
@MAJORS $delay/;
use lib '/usr/share/postgresql-common';
use PgCommon qw/get_versions change_ugid/;
our @MAJORS = $ENV{PG_VERSIONS} ? split (/\s+/, $ENV{PG_VERSIONS}) : sort (get_versions());
our $delay = 500_000; # 500ms
# called if a test fails; spawn a shell if the environment variable
# FAILURE=shell is set
sub fail_debug {
if ($ENV{'FAILURE'} eq 'shell') {
if ((system 'bash') != 0) {
exit 1;
}
}
}
# Return whether a given deb is installed.
# Arguments: <deb name>
sub deb_installed {
open (DPKG, "dpkg -s $_[0] 2>/dev/null|") or die "call dpkg: $!";
my $result = 0;
while (<DPKG>) {
if (/^Version:/) {
$result = 1;
last;
}
}
close DPKG;
return $result;
}
# Return the user, group, and command line of running processes for the given
# program.
sub ps {
return `ps h -o user,group,args -C $_[0] | grep '$_[0]' | sort -u`;
}
# Return array of pids that match the given command line
sub pidof {
open F, '-|', 'ps', 'h', '-C', $_[0], '-o', 'pid,cmd' or die "open: $!";
my @pids;
while (<F>) {
if ((index $_, $_[0]) >= 0 && (index $_, '/') >= 0) {
push @pids, (split)[0];
}
}
close F;
return @pids;
}
# Return an reference to an array of all entries but . and .. of the given directory.
sub dircontent {
opendir D, $_[0] or die "opendir: $!";
my @e = grep { $_ ne '.' && $_ ne '..' } readdir (D);
closedir D;
return \@e;
}
# Return environment of given PID
sub pid_env {
my $path = "/proc/$_[0]/environ";
my @lines;
open E, $path or die "open $path: $!";
{
local $/;
@lines = split '\0', <E>;
}
close E;
my %env;
foreach (@lines) {
my ($k, $v) = (split '=');
$env{$k} = $v;
}
return %env;
}
# Check the contents of a directory.
# Arguments: <directory name> <ref to expected dir content> <test description>
sub ok_dir {
my $content = dircontent $_[0];
if (eq_set $content, $_[1]) {
pass $_[2];
} else {
diag "Expected directory contents: [@{$_[1]}], actual contents: [@$content]\n";
fail $_[2];
}
}
# Execute a command as a different user and return the output. Prints the
# output of the command if exit code differs from expected one.
# Arguments: <user> <system command> <ref to output> [<expected exit code>]
# Returns: Program exit code
sub exec_as {
my $uid;
if ($_[0] =~ /\d+/) {
$uid = int($_[0]);
} else {
$uid = getpwnam $_[0];
defined($uid) or die "TestLib::exec_as: target user '$_[0]' does not exist";
}
change_ugid ($uid, (getpwuid $uid)[3]);
die "changing euid: $!" if $> != $uid;
my $out = `$_[1] 2>&1`;
my $result = $? >> 8;
$< = $> = 0;
$( = $) = 0;
die "changing euid back to root: $!" if $> != 0;
$_[2] = \$out;
if (defined $_[3] && $_[3] != $result) {
print "command '$_[1]' did not exit with expected code $_[3]:\n";
print $out;
fail_debug;
}
return $result;
}
# Execute a command as a particular user, and check the exit code and output
# (merged stdout/stderr).
# Arguments: <user> <command> <expected exit code> <expected output> [<description>]
sub is_program_out {
my $outref;
my $result = exec_as $_[0], $_[1], $outref;
is $result, $_[2], $_[1] or fail_debug;
is ($$outref, $_[3], (defined $_[4] ? $_[4] : "correct output of $_[1]")) or fail_debug;
}
# Execute a command as a particular user, and check the exit code and output
# against a regular expression (merged stdout/stderr).
# Arguments: <user> <command> <expected exit code> <expected output re> [<description>]
sub like_program_out {
my $outref;
my $result = exec_as $_[0], $_[1], $outref;
is $result, $_[2], $_[1] or fail_debug;
like ($$outref, $_[3], (defined $_[4] ? $_[4] : "correct output of $_[1]")) or fail_debug;
}
# Execute a command as a particular user, check the exit code, and check that
# the output does not match a regular expression (merged stdout/stderr).
# Arguments: <user> <command> <expected exit code> <expected output re> [<description>]
sub unlike_program_out {
my $outref;
my $result = exec_as $_[0], $_[1], $outref;
is $result, $_[2], $_[1] or fail_debug;
unlike ($$outref, $_[3], (defined $_[4] ? $_[4] : "correct output of $_[1]")) or fail_debug;
}
# Check that all PostgreSQL related directories are empty and no
# postmaster processes are running. Should be called at the end
# of all tests. Does 10 tests.
sub check_clean {
is (`pg_lsclusters -h`, '', 'No existing clusters');
is ((ps 'postmaster'), '', 'No postmaster processes left behind');
is ((ps 'postgres'), '', 'No postgres processes left behind');
pass ''; # this was pg_autovacuum in the past, which is obsolete
my @check_dirs = ('/etc/postgresql', '/var/lib/postgresql',
'/var/run/postgresql');
foreach (@check_dirs) {
if (-d) {
ok_dir $_, [], "No files in $_ left behind";
} else {
pass "Directory $_ does not exist";
}
}
# we always want /var/log/postgresql/ to exist, so that logrotate does not
# complain about missing directories
ok_dir '/var/log/postgresql', [], "No files in /var/log/postgresql left behind";
is_program_out 0, 'netstat -avptn | grep ":543[2-9]\\b"', 1, '',
'PostgreSQL TCP ports are closed';
}
1;
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