tests: add ifup test for bonded-bridge relationships

tests/fixtures/bonded-bridge.interfaces

@@ -0,0 +1,16 @@
+iface bond0
+	use bond
+
+	requires eth0 eth1
+	bond-mode 802.3ad
+	bond-xmit-hash-policy layer2+3
+
+auto br0
+iface br0
+	use bridge
+
+	requires bond0
+	address 203.0.113.2/24
+	address 2001:db8:1000:2::2/64
+	gateway 203.0.113.1
+	gateway 2001:db8:1000:2::1

tests/ifup_test

@@ -10,7 +10,8 @@ tests_init \
 	static_ipv6 \
 	inet_dhcp \
 	alias_eth0_home \
-	alias_eth0_work
+	alias_eth0_work \
+	bonded_bridge
 
 noargs_body() {
 	atf_check -s exit:1 -e ignore ifup -S/dev/null
@@ -74,3 +75,16 @@ alias_eth0_work_body() {
 		-o match:'default via 2001:db8:1000:2::1' \
 		ifup -S/dev/null -i $FIXTURES/alias-home-work.interfaces -n wlan0=work
 }
+
+bonded_bridge_body() {
+	atf_check -s exit:0 -e ignore \
+		-o match:'ip link set up dev eth0' \
+		-o match:'ip link set up dev eth1' \
+		-o match:'ip link set up dev bond0' \
+		-o match:'ip link set up dev br0' \
+		-o match:'add 203.0.113.2/24 dev br0' \
+		-o match:'add 2001:db8:1000:2::2/64 dev br0' \
+		-o match:'default via 203.0.113.1' \
+		-o match:'default via 2001:db8:1000:2::1' \
+		ifup -S/dev/null -i $FIXTURES/bonded-bridge.interfaces -n br0
+}