require './test.pl';
}
-plan tests => 88;
+plan tests => 93;
+
+is(lc(undef), "", "lc(undef) is ''");
+is(lcfirst(undef), "", "lcfirst(undef) is ''");
+is(uc(undef), "", "uc(undef) is ''");
+is(ucfirst(undef), "", "ucfirst(undef) is ''");
$a = "HELLO.* world";
$b = "hello.* WORLD";
lc $_;
is($_, "Hello");
}
+
+# new in Unicode 5.1.0
+is(lc("\x{1E9E}"), "\x{df}", "lc(LATIN CAPITAL LETTER SHARP S)");