use FindBin '$Bin'; use lib $Bin; use TestYAMLTests tests => 1; my $yaml = <<"..."; --- bar: \xC3\x83\xC2\xB6 foo: \xC3\xB6 ... my $hash = { foo => "\xF6", # LATIN SMALL LETTER O WITH DIAERESIS U+00F6 bar => "\xC3\xB6" # LATIN SMALL LETTER O WITH DIAERESIS U+00F6 (UTF-8) }; is Dump($hash), $yaml, 'Dumping native characters works';