Assert swarm_unlock_key is undefined if unqueried

test/integration/targets/docker_swarm_info/tasks/test_swarm_info.yml

@@ -18,6 +18,7 @@
          - 'output.can_talk_to_docker == true'
          - 'output.docker_swarm_active == false'
          - 'output.docker_swarm_manager == false'
+         - 'output.swarm_unlock_key is not defined'
 
   - name: Create a Swarm cluster
     docker_swarm:
@@ -45,6 +46,7 @@
          - 'output.can_talk_to_docker == true'
          - 'output.docker_swarm_active == true'
          - 'output.docker_swarm_manager == true'
+         - 'output.swarm_unlock_key is not defined'
 
   - name: Try to get docker_swarm_info and list of nodes when docker is running in swarm mode and as manager
     docker_swarm_info:
@@ -61,6 +63,7 @@
          - 'output.can_talk_to_docker == true'
          - 'output.docker_swarm_active == true'
          - 'output.docker_swarm_manager == true'
+         - 'output.swarm_unlock_key is not defined'
 
   - name: Get local docker node name
     set_fact:
@@ -84,6 +87,7 @@
          - 'output.can_talk_to_docker == true'
          - 'output.docker_swarm_active == true'
          - 'output.docker_swarm_manager == true'
+         - 'output.swarm_unlock_key is not defined'
 
   - name: Try to get docker_swarm_info and list of nodes with filters providing existing node name
     docker_swarm_info:
@@ -102,6 +106,7 @@
          - 'output.can_talk_to_docker == true'
          - 'output.docker_swarm_active == true'
          - 'output.docker_swarm_manager == true'
+         - 'output.swarm_unlock_key is not defined'
 
   - name: Create random name
     set_fact:
@@ -124,6 +129,7 @@
          - 'output.can_talk_to_docker == true'
          - 'output.docker_swarm_active == true'
          - 'output.docker_swarm_manager == true'
+         - 'output.swarm_unlock_key is not defined'
 
   - name: Try to get docker_swarm_info and swarm_unlock_key on non a unlocked swarm
     docker_swarm_info: