--- /dev/null
+BEGIN {
+ if ($ENV{PERL_CORE}) {
+ chdir 't' if -d 't';
+ @INC = ("../lib", "lib/compress");
+ }
+}
+
+use lib qw(t t/compress);
+use strict;
+use warnings;
+use bytes;
+
+use Test::More ;
+use CompTestUtils;
+
+BEGIN
+{
+ plan(skip_all => "lvalue sub tests need Perl ??")
+ if $] < 5.006 ;
+
+ # use Test::NoWarnings, if available
+ my $extra = 0 ;
+ $extra = 1
+ if eval { require Test::NoWarnings ; import Test::NoWarnings; 1 };
+
+ plan tests => 10 + $extra ;
+
+ use_ok('Compress::Raw::Zlib', 2) ;
+}
+
+
+
+my $hello = <<EOM ;
+hello world
+this is a test
+EOM
+
+my $len = length $hello ;
+
+# Check zlib_version and ZLIB_VERSION are the same.
+is Compress::Raw::Zlib::zlib_version, ZLIB_VERSION,
+ "ZLIB_VERSION matches Compress::Raw::Zlib::zlib_version" ;
+
+
+{
+ title 'deflate/inflate with lvalue sub';
+
+ my $hello = "I am a HAL 9000 computer" ;
+ my $data = $hello ;
+
+ my($X, $Z);
+ sub getData : lvalue { $data }
+ sub getX : lvalue { $X }
+ sub getZ : lvalue { $Z }
+
+ ok my $x = new Compress::Raw::Zlib::Deflate ( -AppendOutput => 1 );
+
+ cmp_ok $x->deflate(getData, getX), '==', Z_OK ;
+
+ cmp_ok $x->flush(getX), '==', Z_OK ;
+
+ my $append = "Appended" ;
+ $X .= $append ;
+
+ ok my $k = new Compress::Raw::Zlib::Inflate ( -AppendOutput => 1 ) ;
+
+ cmp_ok $k->inflate(getX, getZ), '==', Z_STREAM_END ; ;
+
+ ok $hello eq $Z ;
+ is $X, $append;
+
+}
+
+