diff --git a/lib/File/DirWalk.pm b/lib/File/DirWalk.pm
index 45b9637..ecbc0ca 100644
--- a/lib/File/DirWalk.pm
+++ b/lib/File/DirWalk.pm
@@ -87,10 +87,19 @@ sub onDirLeave {
 
 sub setDepth {
 	my ($self,$v) = @_;
+	if ($v < 0) {
+    	croak("Directory depth is negative: $v");
+	}
+
 	$self->{depth} = $v;
 }
 
 sub getDepth {
+	my ($self) = @_;
+	return $self->{depth};
+}
+
+sub currentDepth {
 	my ($self) = @_;
 	return $self->{depthCount};
 }
@@ -268,10 +277,16 @@ Specify a function to be run when leaving a directory.
 
 Set the directory traversal depth. Once the specified directory depth
 has been reached, the C<walk> method returns. The default value is 0.
+Precondition: The value has to be positive. The method will die
+if called with a negative value.
 
 =item getDepth
 
-Returns the directory traversal depth.
+Returns the user-specified directory traversal depth. The default value is 0.
+
+=item currentDepth
+
+Returns the current directory traversal depth.
 
 =item currentDir
 
@@ -369,7 +384,7 @@ version can be found on GitHub: L<https://github.com/nullmedium/File-DirWalk>
 
 =head1 CHANGES
 
-Version 0.5: bugfixes.
+Version 0.5: bugfixes, improved testing, new currentDepth() method.
 
 Version 0.4: add more methods, better testing, more documentation.
 
diff --git a/t/1.t b/t/1.t
index f17b164..0029ee9 100644
--- a/t/1.t
+++ b/t/1.t
@@ -11,6 +11,12 @@ $dw = new File::DirWalk();
 
 ok( ref($dw) eq 'File::DirWalk' );
 
+is ($dw->getDepth(), 0);
+dies_ok { $dw->setDepth(-1) };
+is ($dw->getDepth(), 0);
+ok ($dw->setDepth(1));
+is ($dw->getDepth(), 1);
+
 ok ($dw->setHandler(onBeginWalk => sub { SUCCESS }));
 ok ($dw->setHandler(onLink      => sub { SUCCESS }));
 ok ($dw->setHandler(onFile      => sub { SUCCESS }));