diff --git a/test/Unit/Core/DirectoryRecursor.test.php b/test/Unit/Core/DirectoryRecursor.test.php
new file mode 100644
index 00000000..e42690eb
--- /dev/null
+++ b/test/Unit/Core/DirectoryRecursor.test.php
@@ -0,0 +1,92 @@
+<?php
+/**
+ * PHP.Gt (http://php.gt)
+ * @copyright Copyright Ⓒ 2014 Bright Flair Ltd. (http://brightflair.com)
+ * @license Apache Version 2.0, January 2004. http://www.apache.org/licenses
+ */
+namespace Gt\Core;
+
+class DirectoryRecursorTest extends \PHPUnit_Framework_TestCase {
+
+public function setUp() {
+	$tmp = \Gt\Test\Helper::createTmpDir();
+}
+
+public function tearDown() {
+	\Gt\Test\Helper::cleanup(Path::get(Path::ROOT));
+}
+
+public function testCallback() {
+	$path = Path::get(Path::ROOT);
+	$filePathArray = [];
+
+	$this->createDirectoryStructure($path, 5, 5);
+
+	$outputArray = DirectoryRecursor::walk(
+		Path::get(Path::ROOT), [$this, "walkCallback"]);
+	$this->assertInternalType("array", $outputArray);
+
+	foreach ($outputArray as $outputItem) {
+		$innerFilePath = substr($outputItem, strpos($outputItem, "/"));
+		$this->assertFileExists($innerFilePath);
+	}
+}
+
+/**
+ * @expectedException \Gt\Core\Exception\RequiredAppResourceNotFoundException
+ */
+public function testWalkOnDirectoryThatDoesNotExist() {
+	DirectoryRecursor::walk("/" . uniqid(true), null);
+}
+
+public function testHash() {
+	$path = Path::get(Path::ROOT);
+	$this->createDirectoryStructure($path, 5, 5);
+
+	$md5Array = DirectoryRecursor::walk($path, [$this, "hashCallback"]);
+	$md5 = implode("", $md5Array);
+
+	$md5 = md5($md5);
+
+	$hash = DirectoryRecursor::hash(Path::get(Path::ROOT));
+	$this->assertEquals($md5, $hash);
+}
+
+private function createDirectoryStructure($basePath, $depth, $leaves) {
+	for($d = 1; $d < $depth; $d++) {
+		$path = "$basePath/";
+		$path .= implode("/", array_fill(0, $d, "dir"));
+
+		if(!is_dir($path)) {
+			mkdir($path, 0775, true);
+		}
+
+		for($l = 1; $l <= $leaves; $l++) {
+			$leaf = "$path/leaf-$l.file";
+
+			file_put_contents($leaf, "File contents of leaf-$l");
+		}
+	}
+}
+
+/**
+ *
+ */
+public function walkCallback($file, $iterator) {
+	$path = $file->getPathname();
+	return $path;
+}
+
+/**
+ *
+ */
+public function hashCallback($file, $iterator) {
+	if($file->isDir()) {
+		return null;
+	}
+
+	$path = $file->getPathname();
+	return md5($path) . md5_file($path);
+}
+
+}#
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