diff --git a/perl/.gitignore b/perl/.gitignore
index b64dcdfe..3e0e73e5 100644
--- a/perl/.gitignore
+++ b/perl/.gitignore
@@ -6,6 +6,7 @@ MessagePack.o
 blib/
 inc/
 msgpack/
+t/std/
 pack.o
 pm_to_blib
 unpack.o
diff --git a/perl/Makefile.PL b/perl/Makefile.PL
index e7b8c474..fafc3876 100644
--- a/perl/Makefile.PL
+++ b/perl/Makefile.PL
@@ -54,6 +54,11 @@ if ($Module::Install::AUTHOR && -d File::Spec->catfile('..', 'msgpack')) {
     for my $src (<../msgpack/*.h>) {
         File::Copy::copy($src, 'msgpack/') or die "copy failed: $!";
     }
+
+    mkdir 't/std';
+    for my $data(<../test/*.{json,mpac}>) {
+        File::Copy::copy($data, 't/std') or die "copy failed: $!";
+    }
 }
 
 requires 'Test::More' => 0.94; # done_testing
diff --git a/perl/lib/Data/MessagePack.pm b/perl/lib/Data/MessagePack.pm
index 3511628c..ece00505 100644
--- a/perl/lib/Data/MessagePack.pm
+++ b/perl/lib/Data/MessagePack.pm
@@ -6,6 +6,18 @@ use 5.008001;
 our $VERSION = '0.23';
 our $PreferInteger = 0;
 
+{
+    package
+        Data::MessagePack::Boolean;
+    use overload
+        'bool' => sub { ${ $_[0] } },
+        '0+'   => sub { ${ $_[0] } },
+        '""'   => sub { ${ $_[0] } ? 'true' : 'false' },
+
+        fallback => 1,
+    ;
+}
+
 our $true  = do { bless \(my $dummy = 1), "Data::MessagePack::Boolean" };
 our $false = do { bless \(my $dummy = 0), "Data::MessagePack::Boolean" };
 sub true  () { $true  }
diff --git a/perl/t/06_stream_unpack2.t b/perl/t/06_stream_unpack2.t
index 25af21d4..78ca8f7c 100644
--- a/perl/t/06_stream_unpack2.t
+++ b/perl/t/06_stream_unpack2.t
@@ -35,7 +35,7 @@ is_deeply(Data::MessagePack->unpack($packed), $input);
     while( read($stream, $buff, $size) ) {
         note "buff: ", join " ", map { unpack 'H2', $_ } split //, $buff;
 
-        $up->execute($buff, 0);
+        $up->execute($buff);
     }
     ok $up->is_finished, 'is_finished';
     my $data = $up->data;
diff --git a/perl/t/09_stddata.t b/perl/t/09_stddata.t
new file mode 100644
index 00000000..d035b4be
--- /dev/null
+++ b/perl/t/09_stddata.t
@@ -0,0 +1,35 @@
+use strict;
+use Test::More;
+use Test::Requires qw(JSON);
+use t::Util;
+
+use Data::MessagePack;
+
+sub slurp {
+    open my $fh, '<:raw', $_[0] or die "failed to open '$_[0]': $!";
+    local $/;
+    return scalar <$fh>;
+}
+
+my @data = @{ JSON::decode_json(slurp("t/std/cases.json")) };
+
+my $mpac1  = slurp("t/std/cases.mpac");
+my $mpac2  = slurp("t/std/cases_compact.mpac");
+
+my $mps = Data::MessagePack::Unpacker->new();
+
+my $t = 1;
+for my $mpac($mpac1, $mpac2) {
+    note "mpac", $t++;
+
+    my $offset = 0;
+    my $i = 0;
+    while($offset < length($mpac)) {
+        $offset += $mps->execute($mpac, $offset);
+        is_deeply $mps->data, $data[$i], "data[$i]";
+        $mps->reset;
+        $i++;
+    }
+}
+
+done_testing;
diff --git a/ruby/test/test_pack_unpack.rb b/ruby/test/test_pack_unpack.rb
index 545e5939..f378c3c7 100644
--- a/ruby/test/test_pack_unpack.rb
+++ b/ruby/test/test_pack_unpack.rb
@@ -239,7 +239,7 @@ class MessagePackTestPackUnpack < Test::Unit::TestCase
 	end
 
 	it "gc mark" do
-		obj = [{["a","b"]=>["c","d"]}, ["e","f"], "d"]
+		obj = [1024, {["a","b"]=>["c","d"]}, ["e","f"], "d", 70000, 4.12, 1.5, 1.5, 1.5]
 		num = 4
 		raw = obj.to_msgpack * num
 		pac = MessagePack::Unpacker.new
@@ -257,7 +257,7 @@ class MessagePackTestPackUnpack < Test::Unit::TestCase
 	end
 
 	it "streaming backward compatibility" do
-		obj = [{["a","b"]=>["c","d"]}, ["e","f"], "d"]
+		obj = [1024, {["a","b"]=>["c","d"]}, ["e","f"], "d", 70000, 4.12, 1.5, 1.5, 1.5]
 		num = 4
 		raw = obj.to_msgpack * num
 		pac = MessagePack::Unpacker.new