diff --git a/tests/UnitTests/A_0/PathNormalization/PathNormalizationTest.php b/tests/UnitTests/A_0/PathNormalization/PathNormalizationTest.php
new file mode 100644
index 00000000..08721bf5
--- /dev/null
+++ b/tests/UnitTests/A_0/PathNormalization/PathNormalizationTest.php
@@ -0,0 +1,77 @@
+<?php
+/*
+ * This file is part of the Smarty PHPUnit tests.
+ */
+
+/**
+ * class for path normalization tests
+ *
+ * @runTestsInSeparateProcess
+ * @preserveGlobalState disabled
+ * @backupStaticAttributes enabled
+ */
+class PathNormalizationTest extends PHPUnit_Smarty
+{
+    /*
+     * Setup test fixture
+     */
+    public function setUp()
+    {
+        $this->setUpSmarty(__DIR__);
+    }
+
+    public function testNormalizeToAbsolute() {
+        $d = $this->smarty->_realpath('./foo/a.foo', true);
+        $this->assertEquals(getcwd() . DIRECTORY_SEPARATOR . 'foo' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeAbsolute() {
+        if (DIRECTORY_SEPARATOR == '/') {
+            $d = $this->smarty->_realpath('\\foo\\a.foo', true);
+            $this->assertEquals('/foo/a.foo', $d);
+        } else {
+            $d = $this->smarty->_realpath('/foo/a.foo', true);
+            $this->assertEquals(substr(getcwd(), 0, 2) . DIRECTORY_SEPARATOR . 'foo' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+            $d = $this->smarty->_realpath(substr(getcwd(), 0, 2) . '/foo/a.foo', true);
+            $this->assertEquals(substr(getcwd(), 0, 2) . DIRECTORY_SEPARATOR . 'foo' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+        }
+    }
+    public function testNormalizeToAbsoluteNoStart() {
+        $d = $this->smarty->_realpath('foo/a.foo', true);
+        $this->assertEquals(getcwd() . DIRECTORY_SEPARATOR . 'foo' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsoluteNoStart2() {
+        $d = $this->smarty->_realpath('a.foo', true);
+        $this->assertEquals(getcwd() . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsolutePathLeadingDot() {
+        $d = $this->smarty->_realpath('.foo/a.foo', true);
+        $this->assertEquals(getcwd() . DIRECTORY_SEPARATOR . '.foo' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsolutePathTrailingDot() {
+        $d = $this->smarty->_realpath('./foo./a.foo', true);
+        $this->assertEquals(getcwd() . DIRECTORY_SEPARATOR . 'foo.' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsolutePathBubbleUp() {
+        $ds = '\\' . DIRECTORY_SEPARATOR;
+        $prefix = preg_replace("#[{$ds}][^{$ds}]+$#", '', getcwd());
+        $d = $this->smarty->_realpath('./../a.foo', true);
+        $this->assertEquals($prefix . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsolutePathBubbleUp2() {
+        $ds = '\\' . DIRECTORY_SEPARATOR;
+        $prefix = preg_replace("#[{$ds}][^{$ds}]+$#", '', getcwd());
+        $d = $this->smarty->_realpath('././../././a.foo', true);
+        $this->assertEquals($prefix . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsolutePathBubbleUp3() {
+        $ds = '\\' . DIRECTORY_SEPARATOR;
+        $prefix = preg_replace("#[{$ds}][^{$ds}]+[{$ds}][^{$ds}]+$#", '', getcwd());
+        $d = $this->smarty->_realpath('././.././.././a.foo', true);
+        $this->assertEquals($prefix . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+    public function testNormalizeToAbsoluteKomplex() {
+        $d = $this->smarty->_realpath('./foo/\\./bar/jo/wie/so/../../go/../..//.././../a.foo', true);
+        $this->assertEquals(getcwd() . DIRECTORY_SEPARATOR . 'foo' . DIRECTORY_SEPARATOR . 'a.foo', $d);
+    }
+
+}
diff --git a/tests/UnitTests/A_0/PathNormalization/cache/dummy.txt b/tests/UnitTests/A_0/PathNormalization/cache/dummy.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/UnitTests/A_0/PathNormalization/templates_c/dummy.txt b/tests/UnitTests/A_0/PathNormalization/templates_c/dummy.txt
new file mode 100644
index 00000000..e69de29b