wicked: test dummy interfaces

data/wicked/ifcfg/dummy1

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+STARTMODE='auto'
+BOOTPROTO='static'

data/wicked/ifcfg/foo0

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+BOOTPROTO='none'
+STARTMODE='auto'
+
+INTERFACETYPE='dummy'

data/wicked/ifcfg/foo1

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+BOOTPROTO='none'
+STARTMODE='auto'
+
+DUMMY='yes'

tests/wicked/basic/sut/t23_dummy_ifup_ifreload.pm

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+# Copyright 2024 SUSE LLC
+# Copyright 2024 Georg Pfuetzenreuter
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Package: wicked
+# Summary: Dummy - ifup, ifreload
+
+use base 'wickedbase';
+use strict;
+use warnings;
+use testapi;
+
+sub run {
+    my ($self) = @_;
+
+    my $config_base = '/etc/sysconfig/network/';
+    my @interfaces = qw( dummy1 foo0 foo1 );
+
+    foreach (@interfaces) {
+        my $interface = $_;
+        $self->get_from_data("wicked/ifcfg/$interface", "$config_base/$interface");
+
+        $self->wicked_command('ifup', "$interface");
+        $self->wicked_command('ifreload', "$interface");
+    }
+
+    foreach (@interfaces) {
+        die if ($self->get_test_result($_) eq 'FAILED');
+    }
+}
+
+sub test_flags {
+    return {always_rollback => 1};
+}
+
+1;