fix for special case of last element of url (#43354)

* fix for special case of last element of url

* improved version

* fixed mistake

* adding appropriate test

* fix problem

* just fixed task name

test/integration/targets/azure_rm_resource/tasks/main.yml

@@ -1,6 +1,7 @@
 - name: Prepare random number
   set_fact:
     nsgname: "{{ resource_group | hash('md5') | truncate(7, True, '') }}{{ 1000 | random }}"
+    storageaccountname: "stacc{{ resource_group | hash('md5') | truncate(7, True, '') }}{{ 1000 | random }}"
   run_once: yes
 
 - name: Call REST API
@@ -54,7 +55,6 @@
   assert:
     that: output.changed
 
-
 - name: Try to get information about account
   azure_rm_resource_facts:
     api_version: '2018-02-01'
@@ -63,3 +63,25 @@
     resource_type: networksecuritygroups
     resource_name: "{{ nsgname }}"
   register: output
+
+- name: Create storage account for Registry
+  azure_rm_storageaccount:
+    resource_group: "{{ resource_group }}"
+    name: "{{ storageaccountname }}"
+    type: Standard_LRS
+
+- name: Try to storage keys -- special case when subresource part has no name
+  azure_rm_resource:
+    resource_group: "{{ resource_group }}"
+    provider: storage
+    resource_type: storageAccounts
+    resource_name: "{{ storageaccountname }}"
+    subresource:
+      - type: listkeys
+    api_version: '2018-03-01-preview'
+    method: POST
+  register: keys
+
+- name: Assert that key was returned
+  assert:
+    that: keys['response']['keys'][0]['value'] | length > 0