helm: Support for single or multiple values files (#236 was #136)

molecule/default/roles/helm/files/values.yaml

@@ -0,0 +1,2 @@
+---
+revisionHistoryLimit: 0

molecule/default/roles/helm/tasks/tests_chart.yml

@@ -258,6 +258,25 @@
     that:
       - install is changed
 
+- name: "Install {{ chart_test }} from {{ source }} with values_files"
+  helm:
+    binary_path: "{{ helm_binary }}"
+    name: test
+    chart_ref: "{{ chart_source }}"
+    chart_version: "{{ chart_source_version | default(omit) }}"
+    namespace: "{{ helm_namespace }}"
+    values_files:
+      - "{{ role_path }}/files/values.yaml"
+  register: install
+
+- name: "Assert that {{ chart_test }} chart has var from {{ source }}"
+  assert:
+    that:
+      - install is changed
+      - install.status.status | lower == 'deployed'
+      - install.status.chart == "{{ chart_test }}-{{ chart_test_version }}"
+      - "install.status['values'].revisionHistoryLimit == 0"
+
 - name: Remove helm namespace
   k8s:
     api_version: v1