#!./perl
-print "1..42\n";
+print "1..45\n";
my $test = 1;
ok(lc($b) eq "hello\.\* world", 'lc');
# \x{100} is LATIN CAPITAL LETTER A WITH MACRON; its bijective lowercase is
-# \x{100}, LATIN SMALL LETTER A WITH MACRON.
-
-$a = "\x{100}\x{101}\x{41}\x{61}";
-$b = "\x{101}\x{100}\x{61}\x{41}";
-
-ok("\Q$a\E." eq "\x{100}\x{101}\x{41}\x{61}.", '\Q\E \x{100}\x{101}\x{41}\x{61}');
-ok("\u$a" eq "\x{100}\x{101}\x{41}\x{61}", '\u');
-ok("\l$a" eq "\x{101}\x{101}\x{41}\x{61}", '\l');
-ok("\U$a" eq "\x{100}\x{100}\x{41}\x{41}", '\U');
-ok("\L$a" eq "\x{101}\x{101}\x{61}\x{61}", '\L');
-
-ok(quotemeta($a) eq "\x{100}\x{101}\x{41}\x{61}", 'quotemeta');
-ok(ucfirst($a) eq "\x{100}\x{101}\x{41}\x{61}", 'ucfirst');
-ok(lcfirst($a) eq "\x{101}\x{101}\x{41}\x{61}", 'lcfirst');
-ok(uc($a) eq "\x{100}\x{100}\x{41}\x{41}", 'uc');
-ok(lc($a) eq "\x{101}\x{101}\x{61}\x{61}", 'lc');
-
-ok("\Q$b\E." eq "\x{101}\x{100}\x{61}\x{41}.", '\Q\E \x{101}\x{100}\x{61}\x{41}');
-ok("\u$b" eq "\x{100}\x{100}\x{61}\x{41}", '\u');
-ok("\l$b" eq "\x{101}\x{100}\x{61}\x{41}", '\l');
-ok("\U$b" eq "\x{100}\x{100}\x{41}\x{41}", '\U');
-ok("\L$b" eq "\x{101}\x{101}\x{61}\x{61}", '\L');
-
-ok(quotemeta($b) eq "\x{101}\x{100}\x{61}\x{41}", 'quotemeta');
-ok(ucfirst($b) eq "\x{100}\x{100}\x{61}\x{41}", 'ucfirst');
-ok(lcfirst($b) eq "\x{101}\x{100}\x{61}\x{41}", 'lcfirst');
-ok(uc($b) eq "\x{100}\x{100}\x{41}\x{41}", 'uc');
-ok(lc($b) eq "\x{101}\x{101}\x{61}\x{61}", 'lc');
+# \x{101}, LATIN SMALL LETTER A WITH MACRON.
+
+$a = "\x{100}\x{101}Aa";
+$b = "\x{101}\x{100}aA";
+
+ok("\Q$a\E." eq "\x{100}\x{101}Aa.", '\Q\E \x{100}\x{101}Aa');
+ok("\u$a" eq "\x{100}\x{101}Aa", '\u');
+ok("\l$a" eq "\x{101}\x{101}Aa", '\l');
+ok("\U$a" eq "\x{100}\x{100}AA", '\U');
+ok("\L$a" eq "\x{101}\x{101}aa", '\L');
+
+ok(quotemeta($a) eq "\x{100}\x{101}Aa", 'quotemeta');
+ok(ucfirst($a) eq "\x{100}\x{101}Aa", 'ucfirst');
+ok(lcfirst($a) eq "\x{101}\x{101}Aa", 'lcfirst');
+ok(uc($a) eq "\x{100}\x{100}AA", 'uc');
+ok(lc($a) eq "\x{101}\x{101}aa", 'lc');
+
+ok("\Q$b\E." eq "\x{101}\x{100}aA.", '\Q\E \x{101}\x{100}aA');
+ok("\u$b" eq "\x{100}\x{100}aA", '\u');
+ok("\l$b" eq "\x{101}\x{100}aA", '\l');
+ok("\U$b" eq "\x{100}\x{100}AA", '\U');
+ok("\L$b" eq "\x{101}\x{101}aa", '\L');
+
+ok(quotemeta($b) eq "\x{101}\x{100}aA", 'quotemeta');
+ok(ucfirst($b) eq "\x{100}\x{100}aA", 'ucfirst');
+ok(lcfirst($b) eq "\x{101}\x{100}aA", 'lcfirst');
+ok(uc($b) eq "\x{100}\x{100}AA", 'uc');
+ok(lc($b) eq "\x{101}\x{101}aa", 'lc');
# \x{DF} is LATIN SMALL LETTER SHARP S, its uppercase is SS or \x{53}\x{53};
# \x{149} is LATIN SMALL LETTER N PRECEDED BY APOSTROPHE, its uppercase is
# \x{2BC}\x{E4} or MODIFIER LETTER APOSTROPHE and N.
-ok("\U\x{DF}ab\x{149}cd" eq "\x{53}\x{53}AB\x{2BC}\x{4E}CD",
+ok("\U\x{DF}ab\x{149}cd" eq "SSAB\x{2BC}NCD",
"multicharacter uppercase");
# The \x{DF} is its own lowercase, ditto for \x{149}.
ok("\L\x{DF}AB\x{149}CD" eq "\x{DF}ab\x{149}cd",
"multicharacter lowercase");
+# titlecase is used for \u / ucfirst.
+
+# \x{587} is ARMENIAN SMALL LIGATURE ECH YIWN and its titlecase is
+# \x{535}\x{582} ARMENIAN CAPITAL LETTER ECH + ARMENIAN SMALL LETTER YIWN
+# while its lowercase is
+# \x{587} itself
+# and its uppercase is
+# \x{535}\x{552} ARMENIAN CAPITAL LETTER ECH + ARMENIAN CAPITAL LETTER YIWN
+
+$a = "\x{587}";
+
+ok("\L\x{587}" eq "\x{587}", "ligature lowercase");
+ok("\u\x{587}" eq "\x{535}\x{582}", "ligature titlecase");
+ok("\U\x{587}" eq "\x{535}\x{552}", "ligature uppercase");
+