Add some tests for #401, take 2

This time testing the actual change.
Also added a missing update:true to earlier tests.

functional/test_write.yml

@@ -7,6 +7,7 @@
     name_folder: '{{namespace}}stalks/bean'
     name_dict: '{{namespace}}_dict'
     name_array: '{{namespace}}_array'
+    name_array_of_dicts: '{{namespace}}_array_of_dicts'
     name_ttls: '{{namespace}}_ttls'
     dict_value:
       foo: 'bar'
@@ -15,6 +16,11 @@
       - 'one'
       - 'two'
       - 'three'
+    array_of_dicts_value:
+      - name: item-one
+      - name: item-two
+      - name: item-three
+
   tasks:
     - hashivault_delete:
         secret: '{{name_root}}'
@@ -97,6 +103,7 @@
 
     - name: Update new value in dictionary and detect change
       hashivault_write:
+        update: True
         secret: '{{name_dict}}'
         data: 
           foo: 'bar'
@@ -112,6 +119,40 @@
         data:
             value: "{{array_value}}"
 
+    - name: Write array of dicts secret
+      hashivault_write:
+        update: True
+        secret: '{{name_array_of_dicts}}'
+        data:
+          value: "{{ array_of_dicts_value }}"
+      register: vault_write
+    - assert: { that: "{{vault_write.changed}} == True" }
+    - assert: { that: "{{vault_write.rc}} == 0" }
+
+    - name: Update again array of dicts secret and verify no change
+      hashivault_write:
+        update: True
+        secret: '{{name_array_of_dicts}}'
+        data:
+          value: "{{ array_of_dicts_value }}"
+      register: vault_write
+    - assert: { that: "{{vault_write.changed}} == False" }
+    - assert: { that: "{{vault_write.rc}} == 0" }
+
+    - name: Update new value in array of dicts and detect change
+      hashivault_write:
+        update: True
+        secret: '{{name_array_of_dicts}}'
+        data:
+          value:
+           - name: item-one
+           - name: item-two
+           - name: item-new
+      register: vault_write
+    - assert: { that: "{{vault_write.changed}} == True" }
+    - assert: { that: "'{{vault_write.msg}}' == 'Secret secret/{{name_array_of_dicts}} written'" }
+    - assert: { that: "{{vault_write.rc}} == 0" }
+
     - name: Initial ttl values
       hashivault_write:
         update: True