Add integration test to ensure system cron tab doesn't get removed. Increase cron integration tests separation.

test/integration/targets/cron/tasks/main.yml

@@ -131,40 +131,79 @@
 - name: Removing a cron file when the name is specified is allowed (#57471)
   when: ansible_distribution != 'Alpine'
   block:
+  - name: Check file does not exist
+    stat:
+      path: /etc/cron.d/cron_remove_name
+    register: cron_file_stats
+
+  - assert:
+      that: not cron_file_stats.stat.exists
+
   - name: Cron file creation
     cron:
-      cron_file: cron_filename
+      cron_file: cron_remove_name
       name: "integration test cron"
       job: 'ls'
       user: root
 
   - name: Cron file deletion
     cron:
-      cron_file: cron_filename
+      cron_file: cron_remove_name
       name: "integration test cron"
       state: absent
 
   - name: Check file succesfull deletion
     stat:
-      path: /etc/cron.d/cron_filename
+      path: /etc/cron.d/cron_remove_name
     register: cron_file_stats
 
   - assert:
       that: not cron_file_stats.stat.exists
 
+- name: System cron tab does not get removed
+  block:
+  - name: Add cron job
+    cron:
+      cron_file: /etc/crontab
+      user: root
+      name: "integration test cron"
+      job: 'ls'
+
+  - name: Remove cron job
+    cron:
+      cron_file: /etc/crontab
+      name: "integration test cron"
+      state: absent
+
+  - name: Check system crontab still exists
+    stat:
+      path: /etc/crontab
+    register: cron_file_stats
+
+  - assert:
+      that: cron_file_stats.stat.exists
+
 - name: Allow non-ascii chars in job (#69492)
   when: ansible_distribution != 'Alpine'
   block:
+  - name: Check file does not exist
+    stat:
+      path: /etc/cron.d/cron_nonascii
+    register: cron_file_stats
+
+  - assert:
+      that: not cron_file_stats.stat.exists
+
   - name: Cron file creation
     cron:
-      cron_file: cron_filename
+      cron_file: cron_nonascii
       name: "cron job that contain non-ascii chars in job (これは日本語です; This is Japanese)"
       job: 'echo "うどんは好きだがお化け👻は苦手である。"'
       user: root
 
   - name: "Ensure cron_file contains job string"
     replace:
-      path: /etc/cron.d/cron_filename
+      path: /etc/cron.d/cron_nonascii
       regexp: "うどんは好きだがお化け👻は苦手である。"
       replace: "それは機密情報🔓です。"
     register: find_chars
@@ -172,13 +211,13 @@
 
   - name: Cron file deletion
     cron:
-      cron_file: cron_filename
+      cron_file: cron_nonascii
       name: "cron job that contain non-ascii chars in job (これは日本語です; This is Japanese)"
       state: absent
 
   - name: Check file succesfull deletion
     stat:
-      path: /etc/cron.d/cron_filename
+      path: /etc/cron.d/cron_nonascii
     register: cron_file_stats
 
   - assert: