Refactoring code of cnos_portchannel as cnos_linkagg in tune with other vendors. (#49467)

* Refactoring code of cnos_portchannel as cnos_linkagg in tune with other vendors.

test/integration/targets/cnos_linkagg/aliases

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+# No Lenovo Switch simulator yet, so not enabled
+unsupported

test/integration/targets/cnos_linkagg/cnos_linkagg_sample_hosts

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+# You have to paste this dummy information  in /etc/ansible/hosts
+#    Notes:
+#    - Comments begin with the '#' character
+#    - Blank lines are ignored
+#    - Groups of hosts are delimited by [header] elements
+#    - You can enter hostnames or ip addresses
+#    - A hostname/ip can be a member of multiple groups
+#
+# In the /etc/ansible/hosts file u have to enter [cnos_portchannel_sample] tag
+# Following you should specify IP Adresses details 
+# Please change <username> and <password> with appropriate value for your switch.
+
+[cnos_linkagg_sample]
+10.241.107.39  ansible_network_os=cnos ansible_ssh_user=<username> ansible_ssh_pass=<password> 

test/integration/targets/cnos_linkagg/defaults/main.yaml

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+---
+testcase: "*"
+test_items: []

test/integration/targets/cnos_linkagg/tasks/cli.yaml

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+---
+- name: collect all cli test cases
+  find:
+    paths: "{{ role_path }}/tests/cli"
+    patterns: "{{ testcase }}.yaml"
+  register: test_cases
+  delegate_to: localhost
+
+- name: set test_items
+  set_fact: test_items="{{ test_cases.files | map(attribute='path') | list }}"
+
+- name: run test cases (connection=network_cli)
+  include: "{{ test_case_to_run }}"
+  with_items: "{{ test_items }}"
+  loop_control:
+    loop_var: test_case_to_run
+
+- name: run test case (connection=local)
+  include: "{{ test_case_to_run }} ansible_connection=local"
+  with_first_found: "{{ test_items }}"
+  loop_control:
+    loop_var: test_case_to_run

test/integration/targets/cnos_linkagg/tasks/main.yaml

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+---
+- { include: cli.yaml, tags: ['cli'] }

test/integration/targets/cnos_linkagg/tests/cli/basic.yaml

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+---
+- debug: msg="START cli/basic.yaml on connection={{ ansible_connection }}"
+
+
+- block:
+
+  - name: setup - remove config used in test(part1)
+    cnos_config:
+      lines:
+        - no interface port-channel 20
+      provider: "{{ cli }}"
+    ignore_errors: yes
+
+  - name: setup - remove config used in test(part2)
+    cnos_config:
+      lines:
+        - no interface port-channel 5
+      provider: "{{ cli }}"
+    ignore_errors: yes
+
+  - name: setup - remove config used in test(part3)
+    cnos_config:
+      lines:
+        - no channel-group
+      provider: "{{ cli }}"
+      parents: "{{ item }}"
+    loop:
+      - interface Ethernet1/33
+      - interface Ethernet1/44
+
+  - name: create linkagg
+    cnos_linkagg: &create
+      group: 20
+      state: present
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface port-channel 20' in result.commands"
+
+  - name: create linkagg(Idempotence)
+    cnos_linkagg: *create
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: set link aggregation group to members
+    cnos_linkagg: &configure_member
+      group: 20
+      mode: active
+      members:
+        - Ethernet1/33
+        - Ethernet1/44
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface Ethernet1/33' in result.commands"
+        - "'channel-group 20 mode active' in result.commands"
+        - "'interface Ethernet1/44' in result.commands"
+        - "'channel-group 20 mode active' in result.commands"
+
+  - name: set link aggregation group to members(Idempotence)
+    cnos_linkagg: *configure_member
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: remove link aggregation group from member
+    cnos_linkagg: &remove_member
+      group: 20
+      mode: active
+      members:
+        - Ethernet1/33
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface Ethernet1/44' in result.commands"
+        - "'no channel-group' in result.commands"
+
+  - name: remove link aggregation group from member(Idempotence)
+    cnos_linkagg: *remove_member
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: remove linkagg
+    cnos_linkagg: &remove
+      group: 20
+      state: absent
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'no interface port-channel 20' in result.commands"
+
+  - name: remove linkagg(Idempotence)
+    cnos_linkagg: *remove
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: create aggregate of linkagg definitions
+    cnos_linkagg: &create_agg
+      aggregate:
+        - { group: 5 }
+        - { group: 20, mode: active, members: ['Ethernet1/33'] }
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == true"
+        - "'interface port-channel 5' in result.commands"
+        - "'interface port-channel 20' in result.commands"
+        - "'interface Ethernet1/33' in result.commands"
+        - "'channel-group 20 mode active' in result.commands"
+
+  - name: create aggregate of linkagg definitions(Idempotence)
+    cnos_linkagg: *create_agg
+    register: result
+
+  - assert:
+      that:
+        - "result.changed == false"
+
+  - name: teardown(part1)
+    cnos_config:
+      lines:
+        - no interface port-channel 20
+      provider: "{{ cli }}"
+    ignore_errors: yes
+
+  - name: teardown(part2)
+    cnos_config:
+      lines:
+        - no interface port-channel 5
+      provider: "{{ cli }}"
+    ignore_errors: yes
+
+  - name: teardown(part3)
+    cnos_config:
+      lines:
+        - no channel-group
+      provider: "{{ cli }}"
+      parents: "{{ item }}"
+    loop:
+      - interface Ethernet1/33
+      - interface Ethernet1/44
+
+
+- debug: msg="END cli/basic.yaml on connection={{ ansible_connection }}"

test/integration/targets/cnos_linkagg/vars/main.yaml

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+---
+cli:
+  host: "{{ inventory_hostname }}"
+  port: 22
+  username: admin
+  password: admin
+  timeout: 30
+  authorize: True
+  auth_pass: