Ticket 49142 - bytes vs unicode in plugin tests
    
    Bug Description:  In some cases on RHEL7 the plugin_tests can fail
    due to the diff with bytes and unicode.This is because the test
    uses the legacy backend manager that is not updated for modern
    python
    
    Fix Description:  Swap the test to the new backend manager that does
    handle this.
    
    https://pagure.io/389-ds-base/issue/49142
    
    Author: wibrown
    
    Review by: mreynolds (Thanks!)