Bug 9859: Follow-up - Adding a simple unit test for nsb_clean

This tests uses the example given on the perl file on the
bug report.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>

t/Charset.t

@@ -17,9 +17,12 @@
 
 use Modern::Perl;
 
-use Test::More tests => 10;
+use Test::More tests => 11;
 use MARC::Record;
 
+use utf8;
+use open ':std', ':encoding(utf8)';
+
 BEGIN {
     use_ok('C4::Charset');
 }
@@ -55,4 +58,6 @@ ok( utf8::is_utf8($record->subfield('100','a')) &&
     utf8::is_utf8($record->subfield('245','a')),
     'SetUTF8Flag sets the UTF-8 flag to all subfields' );
 
+is( nsb_clean("˜Leœ Moyen Âge"), "Le Moyen Âge", "nsb_clean removes ˜ and œ" );
+
 1;