fix(tests): make user_groups integration tests distro-aware

tests/integration_tests/modules/test_users_groups.py

@@ -15,6 +15,7 @@
     IS_UBUNTU,
     JAMMY,
     NOBLE,
+
 )
 from tests.integration_tests.util import verify_clean_boot
 
@@ -115,13 +116,18 @@ def test_users_groups(self, regex, getent_args, class_client):
             )
         )
 
+    @pytest.mark.skipif(
+        not IS_UBUNTU,
+        reason="Warning expectations are Ubuntu-specific",
+    )
     def test_initial_warnings(self, class_client):
         """Check for initial warnings."""
         warnings = (
             [NEW_USER_EMPTY_PASSWD_WARNING.format(username="nopassworduser")]
             if CURRENT_RELEASE > NOBLE
             else []
         )
+
         verify_clean_boot(
             class_client,
             require_warnings=warnings,
@@ -134,6 +140,10 @@ def test_user_root_in_secret(self, class_client):
         groups = groups_str.split()
         assert "secret" in groups
 
+    @pytest.mark.skipif(
+        not IS_UBUNTU,
+        reason="Password unlock warning behavior differs across distros",
+    )
     def test_nopassword_unlock_warnings(self, class_client):
         """Verify warnings for empty passwords for new and existing users."""
         # Fake admin clearing and unlocking and empty unlocked password foobar
@@ -142,6 +152,7 @@ def test_nopassword_unlock_warnings(self, class_client):
         class_client.execute("passwd -d foobar")
         class_client.instance.clean()
         class_client.restart()
+
         warnings = (
             [
                 EXISTING_USER_EMPTY_PASSWD_WARNING.format(
@@ -152,18 +163,19 @@ def test_nopassword_unlock_warnings(self, class_client):
             if CURRENT_RELEASE > NOBLE
             else []
         )
+
         verify_clean_boot(
             class_client,
-            ignore_warnings=True,  # ignore warnings about existing groups
+            ignore_warnings=True,
             require_warnings=warnings,
-        )
-
+       )
 
 @pytest.mark.user_data(USER_DATA)
 @pytest.mark.skipif(
-    CURRENT_RELEASE < JAMMY,
-    reason="Requires version of sudo not available in older releases",
-)
+      IS_UBUNTU and CURRENT_RELEASE < JAMMY,
+      reason="Requires version of sudo not available in older Ubuntu releases",
+)   
+
 def test_sudoers_includedir(client: IntegrationInstance):
     """Ensure we don't add additional #includedir to sudoers.
 
@@ -178,11 +190,15 @@ def test_sudoers_includedir(client: IntegrationInstance):
     sudoers_content_before = client.read_from_file(
         "/etc/sudoers.d/90-cloud-init-users"
     ).splitlines()[1:]
+
     sudoers = client.read_from_file("/etc/sudoers")
+
     if "@includedir /etc/sudoers.d" not in sudoers:
         client.execute("echo '@includedir /etc/sudoers.d' >> /etc/sudoers")
+
     client.instance.clean()
     client.restart()
+
     sudoers = client.read_from_file("/etc/sudoers")
 
     assert "#includedir" not in sudoers
@@ -191,4 +207,5 @@ def test_sudoers_includedir(client: IntegrationInstance):
     sudoers_content_after = client.read_from_file(
         "/etc/sudoers.d/90-cloud-init-users"
     ).splitlines()[1:]
+
     assert sudoers_content_before == sudoers_content_after