test-network: add testcase for reconfiguring interface

test/test-network/conf/12-dummy-altname.link

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[Match]
+OriginalName=dummy98-2
+Driver=dummy
+
+[Link]
+AlternativeName=dummy98-2-altname

test/test-network/conf/12-dummy-mac.netdev

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[NetDev]
+Name=dummy98
+Kind=dummy
+MACAddress=12:34:56:78:9a:01

test/test-network/conf/12-dummy-match-altname.network

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[Match]
+Name=dummy98-2-altname
+Driver=dummy
+MACAddress=12:34:56:78:9a:02
+
+[Network]
+IPv6AcceptRA=no
+Address=10.0.2.2/16

test/test-network/conf/12-dummy-match-mac-01.network

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[Match]
+Name=dummy98
+Driver=dummy
+MACAddress=12:34:56:78:9a:01
+
+[Network]
+IPv6AcceptRA=no
+Address=10.0.0.1/16

test/test-network/conf/12-dummy-match-mac-02.network

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[Match]
+Name=dummy98
+Driver=dummy
+MACAddress=12:34:56:78:9a:02
+
+[Network]
+IPv6AcceptRA=no
+Address=10.0.0.2/16

test/test-network/conf/12-dummy-match-renamed.network

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[Match]
+Name=dummy98-1
+Driver=dummy
+MACAddress=12:34:56:78:9a:02
+
+[Network]
+IPv6AcceptRA=no
+Address=10.0.1.2/16