tests: add tests for auto interface skipping

tests/fixtures/teardown-dep-ordering.ifstate

@@ -0,0 +1,3 @@
+dummy=dummy 2
+bat=bat 2
+br=br 1

tests/fixtures/teardown-dep-ordering.interfaces

@@ -0,0 +1,13 @@
+auto dummy
+iface dummy
+	link-type dummy
+
+auto bat
+iface bat
+	link-type dummy
+	requires dummy
+
+auto br
+iface br
+	link-type dummy
+	requires bat

tests/ifdown_test

@@ -22,6 +22,7 @@ tests_init \
 	deferred_teardown_1 \
 	deferred_teardown_2 \
 	deferred_teardown_3 \
+	teardown_dep_ordering \
 	regress_opt_f
 
 noargs_body() {
@@ -172,6 +173,14 @@ deferred_teardown_3_body() {
 			-i $FIXTURES/deferred-teardown-2.interfaces tun0 tun1 tun2 tun3
 }
 
+teardown_dep_ordering_body() {
+	atf_check -s exit:0 -o ignore \
+		-e match:"skipping auto interface bat" \
+		-e match:"skipping auto interface dummy" \
+		ifdown -n -i $FIXTURES/teardown-dep-ordering.interfaces \
+			-S $FIXTURES/teardown-dep-ordering.ifstate -E $EXECUTORS -a
+}
+
 regress_opt_f_body() {
 	atf_check -s exit:0 -o ignore -e ignore \
 		ifdown -n -S $FIXTURES/vlan.ifstate -E $EXECUTORS -i $FIXTURES/vlan.interfaces -f eth0.8

tests/ifup_test

@@ -18,7 +18,8 @@ tests_init \
 	learned_dependency \
 	learned_dependency_2 \
 	learned_executor \
-	implicit_vlan
+	implicit_vlan \
+	teardown_dep_ordering
 
 noargs_body() {
 	atf_check -s exit:1 -e ignore ifup -S/dev/null
@@ -131,3 +132,10 @@ implicit_vlan_body() {
 		-e match:"attempting to run link executor" \
 		ifup -n -S/dev/null -E $EXECUTORS -i $FIXTURES/vlan.interfaces eth0.8
 }
+
+teardown_dep_ordering_body() {
+	atf_check -s exit:0 -o ignore \
+		-e match:"skipping auto interface bat" \
+		-e match:"skipping auto interface dummy" \
+		ifup -n -i $FIXTURES/teardown-dep-ordering.interfaces -E $EXECUTORS -a
+}