#
#
-plan tests => 157;
-
{
# bug id 20001009.001
}
{
+ # Make sure utf8::decode respects copy-on-write [perl #91834].
+ # Hash keys are the easiest way to test this.
+ my $name = "\x{c3}\x{b3}";
+ my ($k1) = keys %{ { $name=>undef } };
+ my $k2 = $name;
+ utf8::decode($k1);
+ utf8::decode($k2);
+ my $h = { $k1 => 1, $k2 => 2 };
+ is join('', keys $h), $k2, 'utf8::decode respects copy-on-write';
+}
+
+{
my $a = "456\xb6";
utf8::upgrade($a);
no strict 'subs';
ok( !utf8::is_utf8( asd ), "Wasteful format - bareword" );
}
+
+{
+ my @highest =
+ (undef, 0x7F, 0x7FF, 0xFFFF, 0x1FFFFF, 0x3FFFFFF, 0x7FFFFFFF);
+ my @step =
+ (undef, undef, 0x40, 0x1000, 0x40000, 0x1000000, 0x40000000);
+
+ foreach my $length (6, 5, 4, 3, 2) {
+ my $high = $highest[$length];
+ while ($high > $highest[$length - 1]) {
+ my $low = $high - $step[$length] + 1;
+ $low = $highest[$length - 1] + 1 if $low <= $highest[$length - 1];
+ ok(utf8::valid(do {no warnings 'utf8'; chr $low}),
+ sprintf "chr %x, length $length is valid", $low);
+ ok(utf8::valid(do {no warnings 'utf8'; chr $high}),
+ sprintf "chr %x, length $length is valid", $high);
+ $high -= $step[$length];
+ }
+ }
+}
+
+# #80190 update pos, and cached length/position-mapping after
+# utf8 upgrade/downgrade, encode/decode
+
+for my $pos (0..5) {
+
+ my $pos1 = ($pos >= 3) ? 2 : ($pos >= 1) ? 1 : 0;
+ my $pos2 = ($pos1 == 2) ? 3 : $pos1;
+
+ my $p;
+ my $s = "A\xc8\x81\xe8\xab\x86\x{100}";
+ chop($s);
+
+ pos($s) = $pos;
+ # also sets cache
+ is(length($s), 6, "(pos $pos) len before utf8::downgrade");
+ is(pos($s), $pos, "(pos $pos) pos before utf8::downgrade");
+ utf8::downgrade($s);
+ is(length($s), 6, "(pos $pos) len after utf8::downgrade");
+ is(pos($s), $pos, "(pos $pos) pos after utf8::downgrade");
+ is($s, "A\xc8\x81\xe8\xab\x86","(pos $pos) str after utf8::downgrade");
+ utf8::decode($s);
+ is(length($s), 3, "(pos $pos) len after D; utf8::decode");
+ is(pos($s), $pos1, "(pos $pos) pos after D; utf8::decode");
+ is($s, "A\x{201}\x{8ac6}", "(pos $pos) str after D; utf8::decode");
+ utf8::encode($s);
+ is(length($s), 6, "(pos $pos) len after D; utf8::encode");
+ is(pos($s), $pos2, "(pos $pos) pos after D; utf8::encode");
+ is($s, "A\xc8\x81\xe8\xab\x86","(pos $pos) str after D; utf8::encode");
+
+ $s = "A\xc8\x81\xe8\xab\x86";
+
+ pos($s) = $pos;
+ is(length($s), 6, "(pos $pos) len before utf8::upgrade");
+ is(pos($s), $pos, "(pos $pos) pos before utf8::upgrade");
+ utf8::upgrade($s);
+ is(length($s), 6, "(pos $pos) len after utf8::upgrade");
+ is(pos($s), $pos, "(pos $pos) pos after utf8::upgrade");
+ is($s, "A\xc8\x81\xe8\xab\x86","(pos $pos) str after utf8::upgrade");
+ utf8::decode($s);
+ is(length($s), 3, "(pos $pos) len after U; utf8::decode");
+ is(pos($s), $pos1, "(pos $pos) pos after U; utf8::decode");
+ is($s, "A\x{201}\x{8ac6}", "(pos $pos) str after U; utf8::decode");
+ utf8::encode($s);
+ is(length($s), 6, "(pos $pos) len after U; utf8::encode");
+ is(pos($s), $pos2, "(pos $pos) pos after U; utf8::encode");
+ is($s, "A\xc8\x81\xe8\xab\x86","(pos $pos) str after U; utf8::encode");
+}
+
+done_testing();