dnszone: Add support for check_mode.

This patch adds support for check_mode to the dnszone management
module, and provides tests to verify the behavior.

plugins/modules/ipadnszone.py

@@ -570,6 +570,7 @@ def main():
         argument_spec=get_argument_spec(),
         mutually_exclusive=[["name", "name_from_ip"]],
         required_one_of=[["name", "name_from_ip"]],
+        supports_check_mode=True,
     ).ipa_run()
 
 

tests/dnszone/test_dnszone.yml

@@ -11,6 +11,24 @@
     include_tasks: env_setup.yml
 
   # Tests
+  - name: Check if zone is present, when in shouldn't be.
+    ipadnszone:
+      ipaadmin_password: SomeADMINpassword
+      name: testzone.local
+      state: present
+    check_mode: yes
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Check if zone is present again, when in shouldn't be.
+    ipadnszone:
+      ipaadmin_password: SomeADMINpassword
+      name: testzone.local
+      state: present
+    check_mode: yes
+    register: result
+    failed_when: not result.changed or result.failed
+
   - name: Ensure zone is present.
     ipadnszone:
       ipaadmin_password: SomeADMINpassword
@@ -19,6 +37,15 @@
     register: result
     failed_when: not result.changed or result.failed
 
+  - name: Check if zone is present, when in should be.
+    ipadnszone:
+      ipaadmin_password: SomeADMINpassword
+      name: testzone.local
+      state: present
+    check_mode: yes
+    register: result
+    failed_when: result.changed or result.failed
+
   - name: Ensure zone is present, again.
     ipadnszone:
       ipaadmin_password: SomeADMINpassword