test/udev-test.pl

   1 #!/usr/bin/perl
   2
   3 # udev-test
   4 #
   5 # Provides automated testing of the udev binary.
   6 # The whole test is self contained in this file, except the matching sysfs tree.
   7 # Simply extend the @tests array, to add a new test variant.
   8 #
   9 # Every test is driven by its own temporary config file.
  10 # This program prepares the environment, creates the config and calls udev.
  11 #
  12 # udev reads the config, looks at the provided sysfs and
  13 # first creates and then removes the device node.
  14 # After creation and removal the result is checked against the
  15 # expected value and the result is printed.
  16 #
  17 # happy testing,
  18 # Kay Sievers <kay.sievers@vrfy.org>, 2003
  19
  20
  21 use warnings;
  22 use strict;
  23
  24 my $PWD = $ENV{PWD};
  25 my $sysfs     = "sys/";
  26 my $udev_bin  = "../udev";
  27 my $udev_root = "udev-root/"; # !!! directory will be removed !!!
  28 my $udev_db   = "udev.tdb";
  29 my $perm      = "udev.permissions";
  30 my $conf_tmp  = "udev-test.config";
  31
  32
  33 my @tests = (
  34         {
  35                 desc     => "label test of scsi disc",
  36                 subsys   => "block",
  37                 devpath  => "block/sda",
  38                 expected => "boot_disk" ,
  39                 conf     => <<EOF
  40 LABEL, BUS="scsi", vendor="IBM-ESXS", NAME="boot_disk%n"
  41 REPLACE, KERNEL="ttyUSB0", NAME="visor""
  42 EOF
  43         },
  44         {
  45                 desc     => "label test of scsi partition",
  46                 subsys   => "block",
  47                 devpath  => "block/sda/sda1",
  48                 expected => "boot_disk1" ,
  49                 conf     => <<EOF
  50 LABEL, BUS="scsi", vendor="IBM-ESXS", NAME="boot_disk%n"
  51 EOF
  52         },
  53         {
  54                 desc     => "replace kernel name",
  55                 subsys   => "tty",
  56                 devpath  => "class/tty/ttyUSB0",
  57                 expected => "visor" ,
  58                 conf     => <<EOF
  59 REPLACE, KERNEL="ttyUSB0", NAME="visor"
  60 EOF
  61         },
  62         {
  63                 desc     => "subdirectory handling",
  64                 subsys   => "tty",
  65                 devpath  => "class/tty/ttyUSB0",
  66                 expected => "sub/direct/ory/visor" ,
  67                 conf     => <<EOF
  68 REPLACE, KERNEL="ttyUSB0", NAME="sub/direct/ory/visor"
  69 EOF
  70         },
  71         {
  72                 desc     => "place on bus of scsi partition",
  73                 subsys   => "block",
  74                 devpath  => "block/sda/sda3",
  75                 expected => "first_disk3" ,
  76                 conf     => <<EOF
  77 TOPOLOGY, BUS="scsi", PLACE="0:0:0:0", NAME="first_disk%n"
  78 EOF
  79         },
  80         {
  81                 desc     => "test NAME substitution chars",
  82                 subsys   => "block",
  83                 devpath  => "block/sda/sda3",
  84                 expected => "Major:8:minor:3:kernelnumber:3:bus:0:0:0:0" ,
  85                 conf     => <<EOF
  86 TOPOLOGY, BUS="scsi", PLACE="0:0:0:0", NAME="Major:%M:minor:%m:kernelnumber:%n:bus:%b"
  87 EOF
  88         },
  89         {
  90                 desc     => "callout result substitution, only last should match",
  91                 subsys   => "block",
  92                 devpath  => "block/sda/sda3",
  93                 expected => "special-device-3" ,
  94                 conf     => <<EOF
  95 CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n special-device", ID="-special-*", NAME="%c-1-%n"
  96 CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n special-device", ID="special--*", NAME="%c-2-%n"
  97 CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n special-device", ID="special-device-", NAME="%c-3-%n"
  98 CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n special-device", ID="special-devic", NAME="%c-4-%n"
  99 CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n special-device", ID="special-*", NAME="%c-%n"
 100 EOF
 101         },
 102         {
 103                 desc     => "callout program substitution",
 104                 subsys   => "block",
 105                 devpath  => "block/sda/sda3",
 106                 expected => "test-0:0:0:0" ,
 107                 conf     => <<EOF
 108 CALLOUT, BUS="scsi", PROGRAM="/bin/echo -n test-%b", ID="test-*", NAME="%c"
 109 EOF
 110         },
 111 );
 112
 113 # set env
 114 $ENV{UDEV_TEST} = "yes";
 115 $ENV{SYSFS_PATH} = $sysfs;
 116 $ENV{UDEV_CONFIG_DIR} = "./";
 117 $ENV{UDEV_ROOT} = $udev_root;
 118 $ENV{UDEV_DB} = $udev_db;
 119 $ENV{UDEV_PERMISSION_FILE} = $perm;
 120
 121
 122 sub udev {
 123         my ($action, $subsys, $devpath, $config) = @_;
 124
 125         $ENV{DEVPATH} = $devpath;
 126         $ENV{UDEV_CONFIG_FILE} = $conf_tmp;
 127
 128         # create temporary config
 129         open CONF, ">$conf_tmp" || die "unable to create config file: $conf_tmp";
 130         print CONF $$config;
 131         close CONF;
 132
 133         $ENV{ACTION} = $action;
 134         system("$udev_bin $subsys");
 135 }
 136
 137
 138 # prepare
 139 system("rm -rf $udev_root");
 140 mkdir($udev_root) || die "unable to create udev_root: $udev_root\n";
 141
 142 # test
 143 my $error = 0;
 144 print "\nudev-test will run ".($#tests + 1)." tests:\n\n";
 145
 146 foreach my $config (@tests) {
 147         $config->{conf} =~ m/^([A-Z]*).*/;
 148         my $method  = $1;
 149
 150         print "TEST: $config->{desc}\n";
 151         print "method \'$method\' for \'$config->{devpath}\' expecting node \'$config->{expected}\'\n";
 152
 153         udev("add", $config->{subsys}, $config->{devpath}, \$config->{conf});
 154         if (-e "$PWD/$udev_root$config->{expected}") {
 155                 print "add: ok    ";
 156         } else {
 157                 print "add: error\n";
 158                 system("tree $udev_root");
 159                 print "\n";
 160                 $error++;
 161         }
 162
 163         udev("remove", $config->{subsys}, $config->{devpath}, \$config->{conf});
 164         if (-e "$PWD/$udev_root$config->{expected}") {
 165                 print "remove: error\n\n";
 166                 system("tree $udev_root");
 167                 $error++;
 168         } else {
 169                 print "remove: ok\n\n";
 170         }
 171 }
 172
 173 print "$error errors occured\n\n";
 174
 175 # cleanup
 176 system("rm -rf $udev_root");
 177 unlink($conf_tmp);
 178 unlink($udev_db);
 179