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test(xCAT-test): cover the resolver libraries the netboot image takes

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Build a root filesystem for each architecture and run genimage's selection over
it, so the riscv64 libraries are taken from their own directory and the other
architectures keep the files they take today.

Signed-off-by: Vinícius Ferrão <2031761+viniciusferrao@users.noreply.github.com>
This commit is contained in:
Vinícius Ferrão
2026-09-04 12:15:45 -03:00
parent 75fa389d33
commit 7a2499fbfb
1 changed files with 67 additions and 0 deletions
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xCAT-test/unit/ubuntu_genimage_resolver_libs.t
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#!/usr/bin/env perl
use strict;
use warnings;
use File::Path qw(make_path);
use File::Spec;
use File::Temp qw(tempdir);
use FindBin;
use Test::More;
# A netboot image resolves names with the libnss libraries of its own architecture, and
# Ubuntu keeps them in a per-architecture directory. Build a root filesystem for each
# architecture and run genimage's selection over it.
my $repo_root = File::Spec->rel2abs(File::Spec->catdir($FindBin::Bin, '..', '..'));
my $genimage = File::Spec->catfile(
$repo_root, 'xCAT-server', 'share', 'xcat', 'netboot', 'ubuntu', 'genimage');
plan skip_all => "genimage not found at $genimage" unless -f $genimage;
my $src = do { local $/; open my $fh, '<', $genimage or die $!; <$fh> };
my ($selection) =
$src =~ /^(\s*if \(\$arch =~ \/x86_64\/\) \{.*?\n\s*\} else \{.*?\n\s*\}\n)/ms;
ok(defined $selection, 'found the resolver library selection in genimage')
or do { done_testing(); exit };
sub selected {
my ($arch, @present) = @_;
my $rootimg_dir = tempdir(CLEANUP => 1);
foreach my $file (@present) {
my $full = "$rootimg_dir/$file";
($full =~ m{^(.*)/[^/]+$}) and make_path($1);
open(my $fh, '>', $full) or die $!;
close($fh);
}
my @filestoadd;
eval "$selection 1" or die $@; ## no critic (BuiltinFunctions::ProhibitStringyEval)
return join(',', sort @filestoadd);
}
is(
selected('riscv64', 'lib/riscv64-linux-gnu/libnss_files.so.2',
'lib/riscv64-linux-gnu/libnss_dns.so.2'),
'lib/riscv64-linux-gnu/libnss_dns.so.2,lib/riscv64-linux-gnu/libnss_files.so.2',
'a riscv64 image takes the riscv64 resolver libraries',
);
is(
selected('riscv64', 'lib/libnss_dns.so.2'),
'',
'riscv64 does not fall back to the path that holds no riscv64 library',
);
is(
selected('x86_64', 'lib/x86_64-linux-gnu/libnss_dns.so.2'),
'lib/x86_64-linux-gnu/libnss_dns.so.2',
'x86_64 selection is unchanged',
);
is(
selected('ppc64el', 'lib/powerpc64le-linux-gnu/libnss_files.so.2'),
'lib/powerpc64le-linux-gnu/libnss_files.so.2',
'ppc64el selection is unchanged',
);
is(
selected('s390x', 'lib/libnss_dns.so.2'),
'lib/libnss_dns.so.2',
'an architecture with no branch keeps the generic library',
);
done_testing();