Allow unescaped, non-reserved Unicode characters

spec/lib/gitlab/ldap/dn_spec.rb

@@ -15,7 +15,7 @@ describe Gitlab::LDAP::DN do
     where(:test_description, :given, :expected) do
       'strips extraneous whitespace'                                                                 | 'uid     =John Smith ,  ou = People, dc=  example,dc =com'                                            | 'uid=john smith,ou=people,dc=example,dc=com'
       'strips extraneous whitespace for a DN with a single RDN'                                      | 'uid  =  John Smith'                                                                                  | 'uid=john smith'
-      'strips extraneous whitespace without changing escaped characters'                             | 'uid   =  Sebasti\\c3\\a1n\\ C.\\20Smith\\   ,   ou=People (aka. \\22humans\\")  ,dc=example, dc=com' | 'uid=sebasti\\c3\\a1n\\ c.\\20smith\\ ,ou=people (aka. \\22humans\\"),dc=example,dc=com'
+      'unescapes non-reserved, non-special Unicode characters'                                       | 'uid   =  Sebasti\\c3\\a1n\\ C.\\20Smith\\   ,   ou=People (aka. \\22humans\\")  ,dc=example, dc=com' | 'uid=sebastián c. smith  \\ ,ou=people (aka. \\"humans\\"),dc=example,dc=com'
       'strips extraneous whitespace without modifying the multivalued RDN'                           | 'uid = John Smith  + telephoneNumber  = +1 555-555-5555 , ou = People,dc=example,dc=com'              | 'uid=john smith+telephonenumber=+1 555-555-5555,ou=people,dc=example,dc=com'
       'strips the space after the plus sign in the telephoneNumber'                                  | 'uid = John Smith  + telephoneNumber  = + 1 555-555-5555 , ou = People,dc=example,dc=com'             | 'uid=john smith+telephonenumber=+1 555-555-5555,ou=people,dc=example,dc=com'
       'downcases the whole string'                                                                   | 'UID=John Smith,ou=People,dc=example,dc=com'                                                          | 'uid=john smith,ou=people,dc=example,dc=com'