---
 # run with option -i localhost
 # need root permissions
 
 - name: host module testing
   hosts: localhost
   connection: local
   gather_facts: no
   sudo: yes
 
   pre_tasks:
     - name: backup /etc/hosts
       command: cp /etc/hosts /etc/hosts.origin
 
   post_tasks:
     - name: restore /etc/hosts
       command: cp /etc/hosts.origin /etc/hosts
 
   tasks:
     - name: test add a record
       host: hostname=foobar ip=192.168.123.1
       register: result
       failed_when: not result.changed
 
     - name: test error handling only hostname given on present
       host: hostname=foobar
       register: result
       failed_when: result.changed
 
     - name: test error handling only ip given on present
       host: ip=192.168.123.1
       register: result
       failed_when: result.changed
 
     - name: test record exists
       host: hostname=foobar ip=192.168.123.1
       register: result
       failed_when: result.changed
 
     - name: test remove record using hostname
       host: hostname=foobar state=absent
       register: result
       failed_when: not result.changed
 
     - name: test remove not existing record using hostname
       host: hostname=foobar state=absent
       register: result
       failed_when: result.changed
 
     - name: test add a record again
       host: hostname=foobar ip=192.168.123.1
       register: result
       failed_when: not result.changed
 
     - name: test remove record using ip
       host: ip=192.168.123.1 state=absent
       register: result
       failed_when: not result.changed
 
     - name: test remove not existing record using ip
       host: ip=192.168.123.1 state=absent
       register: result
       failed_when: result.changed
 
     - name: test add a record with alias
       host: hostname=foobar ip=192.168.123.1 aliases=foobar.com,foobar.net
       register: result
       failed_when: not result.changed
 
     - name: test add an existing record with alias
       host: hostname=foobar ip=192.168.123.1 aliases=foobar.com,foobar.net
       register: result
       failed_when: result.changed
 
     - name: test add an existing record with changed alias
       host: hostname=foobar ip=192.168.123.1 aliases=foobar.net,foobar.com
       register: result
       failed_when: not result.changed
 
     - name: test remove aliases from existing record
       host: hostname=foobar ip=192.168.123.1
       register: result
       failed_when: not result.changed
 
     - name: test add aliases for existing record
       host: hostname=foobar ip=192.168.123.1 aliases=foobar.net,foobar.com
       register: result
       failed_when: not result.changed
 
     - name: test change ip on existing record
       host: hostname=foobar ip=192.168.123.2
       register: result
       failed_when: not result.changed
 
     - name: test change hostname on existing record
       host: hostname=barfoo ip=192.168.123.2
       register: result
       failed_when: not result.changed