diff --git a/t/1.t b/t/1.t
index 5852ff8..8ec2f5b 100644
--- a/t/1.t
+++ b/t/1.t
@@ -1,4 +1,4 @@
-use Test::More tests => 29;
+use Test::More tests => 33;
 use Test::Exception;
 
 BEGIN { use_ok( 'File::DirWalk' ); }
@@ -7,6 +7,11 @@ require_ok( 'File::DirWalk' );
 $dw = new File::DirWalk();
 is(ref($dw), 'File::DirWalk' );
 
+is(SUCCESS, 1);
+is(FAILED,  0);
+is(ABORTED, -1);
+is(PRUNE,  -10);
+
 is ($dw->getDepth(), 0);
 dies_ok { $dw->setDepth(-1) };
 is ($dw->getDepth(), 0);