--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/perl-5.22.2/os2/os2_base.t	Sat May 14 14:54:38 2016 +0000
@@ -0,0 +1,52 @@
+#!/usr/bin/perl -w
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+use Test::More tests => 19;
+use strict;
+use Config;
+
+my $cwd = Cwd::sys_cwd();
+ok -d $cwd;
+
+my $lpb = Cwd::extLibpath;
+$lpb .= ';' unless $lpb and $lpb =~ /;$/;
+
+my $lpe = Cwd::extLibpath(1);
+$lpe .= ';' unless $lpe and $lpe =~ /;$/;
+
+ok Cwd::extLibpath_set("$lpb$cwd");
+
+$lpb = Cwd::extLibpath;
+$lpb =~ s#\\#/#g;
+(my $s_cwd = $cwd) =~ s#\\#/#g;
+
+like($lpb, qr/\Q$s_cwd/);
+
+ok Cwd::extLibpath_set("$lpe$cwd", 1);
+
+$lpe = Cwd::extLibpath(1);
+$lpe =~ s#\\#/#g;
+
+like($lpe, qr/\Q$s_cwd/);
+
+if (uc OS2::DLLname() eq uc $^X) {	# Static build
+  my ($short) = ($^X =~ m,.*[/\\]([^.]+),);
+  is(uc OS2::DLLname(1), uc $short);
+  is(uc OS2::DLLname, uc $^X );		# automatically
+  is(1,1);				# automatically...
+} else {
+  is(uc OS2::DLLname(1), uc $Config{dll_name});
+  like(OS2::DLLname, qr#\Q/$Config{dll_name}\E\.dll$#i );
+  (my $root_cwd = $s_cwd) =~ s,/t$,,;
+  like(OS2::DLLname, qr#^\Q$root_cwd\E(/t)?\Q/$Config{dll_name}\E\.dll#i );
+}
+is(OS2::DLLname, OS2::DLLname(2));
+like(OS2::DLLname(0), qr#^(\d+)$# );
+
+
+is(OS2::DLLname($_), OS2::DLLname($_, \&Cwd::extLibpath) ) for 0..2;
+ok(not defined eval { OS2::DLLname $_, \&Cwd::cwd; 1 } ) for 0..2;
+ok(not defined eval { OS2::DLLname $_, \&xxx; 1 } ) for 0..2;