Add test and changelogs

changelogs/fragments/inventory.yml

@@ -0,0 +1,3 @@
+---
+minor_changes:
+  - now - add caching(https://github.com/ansible-collections/servicenow.itsm/pull/315).

plugins/inventory/now.py

@@ -28,6 +28,7 @@
   - inventory_cache
 notes:
   - Query feature and constructed groups were added in version 1.2.0.
+  - Caching feature added in version 2.5.0.
 options:
   plugin:
     description:

tests/integration/targets/inventory/files/cache.now.yml

@@ -0,0 +1,16 @@
+---
+plugin: servicenow.itsm.now
+table: cmdb_ci_ec2_instance
+strict: false
+cache: True
+cache_plugin: ansible.builtin.jsonfile
+cache_timeout: 3600
+cache_connection: /tmp/cache
+cache_prefix: now
+
+columns:
+  - sys_id
+  - name
+  - fqdn
+
+sysparm_query: nameSTARTSWITHmy-vm-

tests/integration/targets/inventory/playbooks/cache.yml

@@ -0,0 +1,39 @@
+---
+- name: Test cache options
+  hosts: localhost
+  gather_facts: false
+
+  tasks:
+    - block:
+        - name: Create imaginary VMs
+          servicenow.itsm.configuration_item:
+            name: my-vm-{{ item }}
+            sys_class_name: cmdb_ci_ec2_instance
+            ip_address: 10.1.0.{{ item }}
+            environment: production
+            other:
+              fqdn: f{{ item }}.example.com
+              guest_os_fullname: OS0
+              vm_inst_id: i{{ item }}
+          loop: "{{ range(101, 109) | list }}"
+          register: vms
+
+        - name: Reload inventory
+          ansible.builtin.meta: refresh_inventory
+
+        - ansible.builtin.debug:
+            var: groups
+
+        - name: Make sure we have all expected groups
+          ansible.builtin.assert:
+            that:
+              - groups["all"] | length == 8
+
+      always:
+        - name: Delete VMs
+          servicenow.itsm.configuration_item:
+            state: absent
+            sys_id: "{{ item.record.sys_id }}"
+          loop: "{{ vms.results }}"
+          loop_control:
+            label: "{{ item.record.name }}"