cleanup: Cleanup YAML passed to k8s module

Cleanup the YAML passed to the k8s module so it conforms to yaml output
you would expect from yaml.dump. Also refactor the tests to get rid of
duplicate definitions and make use of pytest.mark.parametrize and
yaml.dump.

Signed-off-by: Felix Matouschek <fmatouschek@redhat.com>

plugins/modules/kubevirt_vm.py

@@ -265,12 +265,12 @@ apiVersion: {{ api_version }}
 kind: VirtualMachine
 metadata:
   {% if name %}
-  name: "{{ name }}"
+  name: {{ name }}
   {% endif %}
   {% if generate_name %}
-  generateName: "{{ generate_name }}"
+  generateName: {{ generate_name }}
   {% endif %}
-  namespace: "{{ namespace }}"
+  namespace: {{ namespace }}
   {% if annotations %}
   annotations:
     {{ annotations | to_yaml | indent(4) }}
@@ -280,7 +280,7 @@ metadata:
     {{ labels | to_yaml | indent(4) }}
   {%- endif %}
 spec:
-  running: {{ running }}
+  running: {{ running | lower }}
   {% if instancetype %}
   instancetype:
     {{ instancetype | to_yaml | indent(4) }}
@@ -291,7 +291,7 @@ spec:
   {%- endif %}
   {% if data_volume_templates %}
   dataVolumeTemplates:
-    {{ data_volume_templates | to_yaml | indent(4) }}
+  {{ data_volume_templates | to_yaml | indent(2) }}
   {%- endif %}
   template:
     {% if annotations or labels %}