add tests for hostlist_expression with padded hostnames

Author: sjpb

tests/filter.yml

@@ -5,15 +5,19 @@
   vars:
     grouped_0: "{{ groups['mock_group_0'] | hostlist_expression }}"
     grouped_1: "{{ groups['mock_group_1'] | hostlist_expression }}"
+    grouped_2: "{{ groups['mock_group_2'] | hostlist_expression }}"
   tasks:
-    - name: Show grouped mock-group-0
-      debug: var=grouped_0
-    - name: Show grouped mock-group-1
-      debug: var=grouped_1
     - name: Test filter
       assert:
-        that:
-          - "['localhost-0-[0-3,5]', 'localhost-non-numerical'] == grouped_0"
-          - "['localhost-1-[1-2,4-5,10]', 'localhost-2-[1-3]'] == grouped_1"
-
+        that: item.result == item.expected
+        fail_msg: |
+          expected: {{ item.expected }}
+          got: {{ item.result }}
+      loop:
+        - result: "{{ grouped_0 }}"
+          expected: ['localhost-0-[0-3,5]', 'localhost-non-numerical']
+        - result: "{{ grouped_1 }}"
+          expected: ['localhost-1-[1-2,4-5,10]', 'localhost-2-[1-3]']
+        - result: "{{ grouped_2 }}"
+          expected: ['localhost-[1,0001-0003,0008,0010]', 'localhost-admin']
 ...

tests/inventory-mock-groups

@@ -15,3 +15,15 @@ localhost-1-10 ansible_host=127.0.0.1  ansible_connection='local'    ansible_pyt
 localhost-2-1 ansible_host=127.0.0.1  ansible_connection='local'    ansible_python_interpreter='/usr/bin/env python'
 localhost-2-2 ansible_host=127.0.0.1  ansible_connection='local'    ansible_python_interpreter='/usr/bin/env python'
 localhost-2-3 ansible_host=127.0.0.1  ansible_connection='local'    ansible_python_interpreter='/usr/bin/env python'
+
+[mock_group_2]
+# test padding:
+# $ scontrol show hostlist localhost-admin,localhost-0001,localhost-0002,localhost-0003,localhost-0008,localhost-0010,localhost-1
+# localhost-admin,localhost-[0001-0003,0008,0010,1]
+localhost-0001
+localhost-1
+localhost-0010
+localhost-admin
+localhost-0002
+localhost-0008
+localhost-0003