Fix listen-port-facts crash

plugins/modules/listen_ports_facts.py

@@ -397,7 +397,7 @@ def main():
                     break
 
         if bin_path is None:
-            raise EnvironmentError(msg='Unable to find any of the supported commands in PATH: {0}'.format(", ".join(sorted(commands_map))))
+            raise EnvironmentError('Unable to find any of the supported commands in PATH: {0}'.format(", ".join(sorted(commands_map))))
 
         # which ports are listening for connections?
         args = commands_map[command]['args']

tests/integration/targets/listen_ports_facts/tasks/main.yml

@@ -110,3 +110,34 @@
   loop: "{{ [tcp_listen, udp_listen]|flatten }}"
   when: item.name == 'nc'
   ignore_errors: true
+
+
+- name: Remove netstat and ss dependencies to simulate missing executables
+  ansible.builtin.package:
+    name:
+      - net-tools
+      - iproute2
+    state: absent
+  ignore_errors: true
+  when: ansible_os_family == "Debian"
+
+- name: Trigger listen_ports_facts with missing tools
+  community.general.listen_ports_facts:
+  register: listen_ports_failure_result
+  ignore_errors: true
+  when: ansible_os_family == "Debian"
+
+- name: Assert graceful failure when dependencies are missing
+  ansible.builtin.assert:
+    that:
+      - listen_ports_failure_result.failed
+      - "'Unable to find any of the supported commands' in listen_ports_failure_result.msg"
+  when: ansible_os_family == "Debian"
+
+- name: Reinstall netstat and ss dependencies after test
+  ansible.builtin.package:
+    name:
+      - net-tools
+      - iproute2
+    state: present
+  when: ansible_os_family == "Debian"