Fix multiple code and test issues on iosxr (#27267)

* Fix multiple code and test issues on iosxr

It passes the integration tests now.
Fixes #27123

* Fix pep8 issue

* Fix unit tests

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

@@ -19,7 +19,7 @@
     that:
       - 'result.changed == true'
       - '"username" in result.commands[0]'
-      - '"secret" in result.commands[0]'
+      - '"secret" in result.commands[1]'
 
 - name: Create user with update_password always (not idempotent)
   iosxr_user:
@@ -50,11 +50,43 @@
       - 'result.changed == false'
       - 'result.commands | length == 0'
 
+- name: Modify user group
+  iosxr_user:
+    name: ansibletest1
+    password: test
+    update_password: on_create
+    group: sysadmin
+    state: present
+    provider: "{{ cli }}"
+  register: result
+
+- assert:
+    that:
+      - 'result.changed == true'
+      - '"username" in result.commands[0]'
+      - '"group" in result.commands[0]'
+
+- name: Modify user group again (idempotent)
+  iosxr_user:
+    name: ansibletest1
+    password: test
+    update_password: on_create
+    group: sysadmin
+    state: present
+    provider: "{{ cli }}"
+  register: result
+
+- assert:
+    that:
+      - 'result.changed == false'
+      - 'result.commands | length == 0'
+
 - name: Collection of users (SetUp)
   iosxr_user:
     users:
       - name: ansibletest2
       - name: ansibletest3
+    password: test
     state: present
     group: sysadmin
     provider: "{{ cli }}"
@@ -63,13 +95,19 @@
 - assert:
     that:
       - 'result.changed == true'
-      - 'result.commands == ["username ansibletest2 group sysadmin", "username ansibletest3 group sysadmin"]'
+      - '"username" in result.commands[0]'
+      - '"secret" in result.commands[1]'
+      - '"group sysadmin" in result.commands[2]'
+      - '"username" in result.commands[3]'
+      - '"secret" in result.commands[4]'
+      - '"group sysadmin" in result.commands[5]'
 
 - name: Add collection of users again with update_password always (not idempotent)
   iosxr_user:
     users:
       - name: ansibletest2
       - name: ansibletest3
+    password: test
     state: present
     group: sysadmin
     provider: "{{ cli }}"
@@ -78,13 +116,17 @@
 - assert:
     that:
       - 'result.changed == true'
-      - 'result.commands == ["username ansibletest2 group sysadmin", "username ansibletest3 group sysadmin"]'
+      - '"username" in result.commands[0]'
+      - '"secret" in result.commands[0]'
+      - '"username" in result.commands[1]'
+      - '"secret" in result.commands[1]'
 
 - name: Add collection of users again with update_password on_create (idempotent)
   iosxr_user:
     users:
       - name: ansibletest2
       - name: ansibletest3
+    password: test
     update_password: on_create
     state: present
     group: sysadmin