dnf5 config-manager: Add tests for warning messages

dnf-behave-tests/dnf/plugins-core/config-manager-opts.feature

@@ -130,7 +130,28 @@ Scenario: unset/remove an main option
       """
 
 
-Scenario: unset/remove an main option, trying to unset an not set option is OK
+Scenario: unset/remove unsupported main option is OK, but a warning is written
+  Given I create file "/etc/dnf/dnf.conf" with
+      """
+      [main]
+      best=True
+      unsupported=1
+      skip_unavailable=True
+      """
+   When I execute dnf with args "config-manager unsetopt best unsupported"
+   Then the exit code is 0
+    And file "/etc/dnf/dnf.conf" contents is 
+      """
+      [main]
+      skip_unavailable=True
+      """
+    And stderr is
+      """
+      config-manager: Request to remove unsupported main option: unsupported
+      """
+
+
+Scenario: unset/remove an main option, trying to unset an not set option is OK, but a warning is written
   Given I create file "/etc/dnf/dnf.conf" with
       """
       [main]
@@ -144,6 +165,20 @@ Scenario: unset/remove an main option, trying to unset an not set option is OK
       [main]
       skip_unavailable=True
       """
+    And stderr is
+      """
+      config-manager: Request to remove main option but it is not present in the config file: installroot
+      """
+
+
+Scenario: trying to unset an not set main option (config file is not found) is OK, but a warning is written
+  Given I delete file "/etc/dnf/dnf.conf"
+   When I execute dnf with args "config-manager unsetopt best"
+   Then the exit code is 0
+    And stderr is
+      """
+      config-manager: Request to remove main option but config file not found: {context.dnf.installroot}/etc/dnf/dnf.conf
+      """
 
 
 Scenario: repository configuration overrides - new option to "repo1"
@@ -321,7 +356,68 @@ Scenario: repository configuration overrides - unset/remove option, globs in rep
       """
 
 
-Scenario: repository configuration overrides - unset/remove option, trying to unset an not set option is OK
+Scenario: repository configuration overrides - unset/remove unsupported option is OK, but a warning is written
+  Given I create file "/etc/dnf/repos.override.d/99-config_manager.repo" with
+      """
+      [repo1]
+      enabled=0
+      unsupported=1
+      priority=40
+      skip_if_unavailable=1
+      [repo2]
+      enabled=1
+      priority=50
+      skip_if_unavailable=0
+      """
+   When I execute dnf with args "config-manager unsetopt repo1.unsupported repo1.priority"
+   Then the exit code is 0
+    And file "/etc/dnf/repos.override.d/99-config_manager.repo" contents is
+      """
+      [repo1]
+      enabled=0
+      skip_if_unavailable=1
+      [repo2]
+      enabled=1
+      priority=50
+      skip_if_unavailable=0
+      """
+    And stderr is
+      """
+      config-manager: Request to remove unsupported repository option: repo1.unsupported
+      """
+
+
+Scenario: repository configuration overrides - unset/remove option, repoid not in overrides is OK, but a warning is written
+  Given I create file "/etc/dnf/repos.override.d/99-config_manager.repo" with
+      """
+      [repo1]
+      enabled=0
+      priority=40
+      skip_if_unavailable=1
+      [repo2]
+      enabled=1
+      priority=50
+      skip_if_unavailable=0
+      """
+   When I execute dnf with args "config-manager unsetopt test_repo.priority repo1.priority"
+   Then the exit code is 0
+    And file "/etc/dnf/repos.override.d/99-config_manager.repo" contents is
+      """
+      [repo1]
+      enabled=0
+      skip_if_unavailable=1
+      [repo2]
+      enabled=1
+      priority=50
+      skip_if_unavailable=0
+      """
+    And stderr is
+      """
+      config-manager: Request to remove repository option but repoid is not present in the overrides: test_repo
+      """
+
+
+Scenario: repository configuration overrides - unset/remove option, trying to unset an not set option is OK, but a warning is written
   Given I create file "/etc/dnf/repos.override.d/99-config_manager.repo" with
       """
       [repo1]
@@ -345,6 +441,19 @@ Scenario: repository configuration overrides - unset/remove option, trying to un
       priority=50
       skip_if_unavailable=0
       """
+    And stderr is
+      """
+      config-manager: Request to remove repository option but it is not present in the overrides: repo1.cost
+      """
+
+
+Scenario: repository configuration overrides - unset/remove option, no file with overrides found is OK, but a warning is written
+   When I execute dnf with args "config-manager unsetopt repo1.cost"
+   Then the exit code is 0
+    And stderr is
+      """
+      config-manager: Request to remove repository option but file with overrides not found: {context.dnf.installroot}/etc/dnf/repos.override.d/99-config_manager.repo
+      """
 
 
 Scenario: repository configuration overrides - unset/remove option, empty section is removed

dnf-behave-tests/dnf/plugins-core/config-manager-vars.feature

@@ -103,7 +103,7 @@ Scenario: unset/remove an existing variable
       """
 
 
-Scenario: unset/remove an existing variable, removing non-existent variable is OK
+Scenario: unset/remove an existing variable, removing non-existent variable is OK, but a warning is written
   Given I create file "/etc/dnf/vars/mvar1" with
       """
       orig_value1
@@ -119,3 +119,16 @@ Scenario: unset/remove an existing variable, removing non-existent variable is O
       """
       orig_value2
       """
+    And stderr is
+      """
+      config-manager: Request to remove variable but it is not present in the vars directory: nonexistvar
+      """
+
+
+Scenario: removing non-existent variable (directory with variables not found) is OK, but a warning is written
+   When I execute dnf with args "config-manager unsetvar nonexistvar"
+   Then the exit code is 0
+    And stderr is
+      """
+      config-manager: Request to remove variable but vars directory was not found: {context.dnf.installroot}/etc/dnf/vars
+      """