dnf5 config-manager: Add test from-repofile with comments and emty line

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

@@ -226,6 +226,31 @@ Scenario: test "addrepo" from repofile
  """
 
 
+Scenario: test "addrepo" from repofile with comments and empty line
+ Given I create file "/{context.dnf.tempdir}/tmp/test.repo" with
+ """
+ # Repository configuration file
+ [test] # Test repo
+ name=repository file
+
+ enabled=0
+ # URL to repository
+ baseurl=http://something.com/os/
+ """
+ And I execute dnf with args "config-manager addrepo --from-repofile={context.dnf.tempdir}/tmp/test.repo"
+ Then the exit code is 0
+ And file "/etc/yum.repos.d/test.repo" contents is
+ """
+ # Repository configuration file
+ [test] # Test repo
+ name=repository file
+
+ enabled=0
+ # URL to repository
+ baseurl=http://something.com/os/
+ """
+
+
 Scenario: "addrepo" from repofile, source file without .repo extension, adding the .repo extension to the destination filename
  Given I create file "/{context.dnf.tempdir}/tmp/test" with
  """