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runtest: clone config before passing to write to avoid side effects

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write changes some parts of the config, if this is a reference to the
config used for checking parsing it may lead to unexpected failures
due to those side effects..

For me it was "cidr" and "cidr6" getting deleted, and thus upcomming
tests for a compat change failing without any apparent reason.. :/

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2020-03-13 11:01:01 +01:00
parent 3219cb94e3
commit ffe0b0e075
1 changed files with 4 additions and 1 deletions
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test/etc_network_interfaces/runtest.pl
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@ -8,6 +8,7 @@ use warnings;
use Carp;
use POSIX;
use IO::Handle;
use Storable qw(dclone);
use PVE::INotify;
@ -74,7 +75,9 @@ sub r($;$$) {
# Turn the current network config into a string.
sub w() {
return PVE::INotify::__write_etc_network_interfaces($config);
# write shouldn't be able to change a previously parsed config
my $config_clone = dclone($config);
return PVE::INotify::__write_etc_network_interfaces($config_clone);
}
##