--- t/fs.t	2007/07/09 13:45:45	16
+++ t/fs.t	2007/07/09 15:41:01	18
@@ -4,7 +4,7 @@
 
 my $debug = shift @ARGV;
 
-use Test::More tests => 710;
+use Test::More tests => 727;
 use File::Slurp;
 use IO::File;
 
@@ -77,6 +77,14 @@
 	return $content;
 }
 
+sub md5sum {
+	my $path = shift;
+	my $md5sum = `md5sum $path`;
+	$md5sum =~ s/\s+.*$//s;
+	warn "## md5sum($path) = $md5sum\n" if $debug;
+	return $md5sum;
+}
+
 my $buff = '<<--just a chunk of data-->>';
 
 for my $i ( 1 .. 3 ) {
@@ -145,6 +153,16 @@
 		cmp_ok( -s "$to/m", '==', $expected_size, "appended upto $expected_size" );
 	}
 
+	ok( $size = -s "$to/m", 'size' );
+	ok( my $md5sum = md5sum("$to/m"), 'md5sum m' );
+	ok( rename("$to/m", "$to/n"), 'rename' );
+	ok( -e "$to/n", "$to/n exists" );
+	ok( ! -e "$to/m", "$to/m gone" );
+	cmp_ok( -s "$to/n", '==', $size, 'size' );
+	cmp_ok( $md5sum, 'eq', md5sum("$to/n"), 'md5sums same' );
+
+	ok( unlink("$to/n"), "$to/n unlink" );
+	ok( ! -e "$to/n", "$to/n gone" );
 
 }