azure_rm_virtualmachine_scaleset: ported PR#32367 (add custom image support) (#33422)

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

@@ -86,3 +86,48 @@
     name: testVnet
     state: absent
     address_prefixes: "10.0.0.0/16"
+
+# TODO: Until we have a module to create/delete images this is the best tests
+# I can do
+- name: assert error thrown with invalid image dict
+  azure_rm_virtualmachine_scaleset:
+      resource_group: "{{ resource_group }}"
+      name: testvm002
+      state: present
+      vm_size: Standard_DS1_v2
+      image:
+        offer: UbuntuServer
+  register: fail_invalid_image_dict
+  failed_when: 'fail_invalid_image_dict.msg != "parameter error: expecting image to contain [publisher, offer, sku, version] or [name, resource_group]"'
+
+- name: assert error thrown with invalid image type
+  azure_rm_virtualmachine_scaleset:
+      resource_group: "{{ resource_group }}"
+      name: testvm002
+      state: present
+      vm_size: Standard_DS1_v2
+      image:
+      - testing
+  register: fail_invalid_image_type
+  failed_when: 'fail_invalid_image_type.msg != "parameter error: expecting image to be a string or dict not list"'
+
+- name: assert error finding missing custom image
+  azure_rm_virtualmachine_scaleset:
+      resource_group: "{{ resource_group }}"
+      name: testvm002
+      state: present
+      vm_size: Standard_DS1_v2
+      image: invalid-image
+  register: fail_missing_custom_image
+  failed_when: fail_missing_custom_image.msg != "Error could not find image with name invalid-image"
+
+- name: assert error finding missing custom image (dict style)
+  azure_rm_virtualmachine_scaleset:
+      resource_group: "{{ resource_group }}"
+      name: testvm002
+      state: present
+      vm_size: Standard_DS1_v2
+      image:
+        name: invalid-image
+  register: fail_missing_custom_image_dict
+  failed_when: fail_missing_custom_image_dict.msg != "Error could not find image with name invalid-image"