Add integration tests for multi-node-bridge role

Change-Id: I1cf7d5de19b3426a9577b4ecbc3538813a16dfc7

tests/multi-node-bridge.yaml

@@ -0,0 +1,54 @@
+- name: Test the multi-node-bridge role
+  hosts:
+    - switch
+    - peers
+  roles:
+    - multi-node-bridge
+  post_tasks:
+    - become: yes
+      block:
+        - name: openvswitch should be installed
+          package:
+            name: "{{ ovs_package }}"
+            state: installed
+          register: ovs_installed
+
+        - name: openvswitch should be running
+          service:
+            name: "{{ ovs_service }}"
+            state: started
+            enabled: yes
+          register: ovs_running
+
+        - name: bridge should exist
+          openvswitch_bridge:
+            bridge: "{{ bridge_name }}"
+          register: ovs_bridge
+
+        - name: port should exist
+          command: ovs-vsctl show
+          changed_when: false
+          register: ovs_port
+
+        - name: switch should be reachable
+          command: ping -c 4 {{ bridge_address_prefix }}.{{ bridge_address_offset }}
+          changed_when: false
+          failed_when: false
+          register: ovs_ping_switch
+
+        - name: peer should be reachable
+          command: ping -c 4 {{ bridge_address_prefix }}.{{ bridge_address_offset + 1 }}
+          changed_when: false
+          failed_when: false
+          register: ovs_ping_peer
+
+        - name: assert test results
+          assert:
+            that:
+              - not ovs_installed | changed
+              - not ovs_running | changed
+              - not ovs_bridge | changed
+              - ovs_port.rc == 0
+              - "'Port \"br-infra_' in ovs_port.stdout"
+              - ovs_ping_switch.rc == 0
+              - ovs_ping_peer.rc == 0

tests/multinode.yaml

@@ -9,3 +9,4 @@
 - include: multi-node-known-hosts.yaml
 - include: multi-node-hosts-file.yaml
 - include: multi-node-firewall.yaml
+- include: multi-node-bridge.yaml

zuul.d/jobs.yaml

@@ -63,6 +63,7 @@
       - ^roles/configure-unbound/.*
       - ^roles/fetch-zuul-cloner/.*
       - ^roles/mirror-info/.*
+      - ^roles/multi-node-bridge/.*
       - ^roles/multi-node-firewall/.*
       - ^roles/multi-node-hosts-file/.*
       - ^roles/multi-node-known-hosts/.*