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From 6c3191e979165700f98903b76621c214186a110c Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Wed, 25 Apr 2018 09:54:26 +0200
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Subject: [PATCH] test/udev-test.pl: generator for large list of block devices
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Manually listing all devices in the test definition becomes cumbersome with
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lots of devices. Add a function that scans on all block devices in
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the test sysfs and generates a list of devices to test.
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(cherry picked from commit eb44d715ebee2fe11288433b99f8e1dc5fdac84a)
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Related: #1642728
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---
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test/udev-test.pl | 60 ++++++++++++++++++++++++++++++++++++++++++++++-
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1 file changed, 59 insertions(+), 1 deletion(-)
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diff --git a/test/udev-test.pl b/test/udev-test.pl
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index 8b1ab3c06c..2866fdb77a 100755
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--- a/test/udev-test.pl
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+++ b/test/udev-test.pl
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@@ -50,6 +50,50 @@ for (my $i = 1; $i < 10000; ++$i) {
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}
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$rules_10k_tags_continuation .= "TAG+=\"test10000\"\\n";
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+# Create a device list with all block devices under /sys
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+# (except virtual devices and cd-roms)
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+# the optional argument exp_func returns expected and non-expected
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+# symlinks for the device.
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+sub all_block_devs {
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+ my ($exp_func) = @_;
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+ my @devices;
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+
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+ foreach my $bd (glob "$udev_sys/dev/block/*") {
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+ my $tgt = readlink($bd);
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+ my ($exp, $notexp) = (undef, undef);
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+
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+ next if ($tgt =~ m!/virtual/! || $tgt =~ m!/sr[0-9]*$!);
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+
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+ $tgt =~ s!^\.\./\.\.!!;
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+ ($exp, $notexp) = $exp_func->($tgt) if defined($exp_func);
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+ my $device = {
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+ devpath => $tgt,
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+ exp_links => $exp,
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+ not_exp_links => $notexp,
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+ };
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+ push(@devices, $device);
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+ }
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+ return \@devices;
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+}
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+
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+# This generator returns a suitable exp_func for use with
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+# all_block_devs().
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+sub expect_for_some {
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+ my ($pattern, $links, $donot) = @_;
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+ my $_expect = sub {
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+ my ($name) = @_;
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+
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+ if ($name =~ /$pattern/) {
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+ return ($links, undef);
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+ } elsif ($donot) {
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+ return (undef, $links);
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+ } else {
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+ return (undef, undef);
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+ }
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+ };
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+ return $_expect;
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+}
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+
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my @tests = (
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{
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desc => "no rules",
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@@ -2257,6 +2301,15 @@ SUBSYSTEM=="block", SUBSYSTEMS=="scsi", KERNEL=="sda?*", ENV{DEVTYPE}=="partitio
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KERNEL=="*7", OPTIONS+="link_priority=10"
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EOF
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},
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+ {
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+ desc => 'all_block_devs',
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+ generator => expect_for_some("\\/sda6\$", ["blockdev"]),
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+ repeat => 10,
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+ rules => <
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+SUBSYSTEM=="block", SUBSYSTEMS=="scsi", KERNEL=="sd*", SYMLINK+="blockdev"
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+KERNEL=="sda6", OPTIONS+="link_priority=10"
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+EOF
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+ }
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);
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sub create_rules {
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@@ -2631,7 +2684,12 @@ sub fork_and_run_udev {
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sub run_test {
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my ($rules, $number, $sema) = @_;
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my $rc;
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- my @devices = @{$rules->{devices}};
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+ my @devices;
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+
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+ if (!defined $rules->{devices}) {
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+ $rules->{devices} = all_block_devs($rules->{generator});
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+ }
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+ @devices = @{$rules->{devices}};
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print "TEST $number: $rules->{desc}\n";
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create_rules(\$rules->{rules});
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