diff --git a/test/IniTest.php b/test/IniTest.php
index 9665a09..954ff9d 100644
--- a/test/IniTest.php
+++ b/test/IniTest.php
@@ -40,14 +40,14 @@ class IniTest extends \PHPUnit_Framework_TestCase
 
     public function setUp()
     {
-        $this->_iniFileConfig = dirname(__FILE__) . '/_files/config.ini';
-        $this->_iniFileAllSectionsConfig = dirname(__FILE__) . '/_files/allsections.ini';
-        $this->_iniFileCircularConfig = dirname(__FILE__) . '/_files/circular.ini';
-        $this->_iniFileMultipleInheritanceConfig = dirname(__FILE__) . '/_files/multipleinheritance.ini';
-        $this->_iniFileSeparatorConfig = dirname(__FILE__) . '/_files/separator.ini';
-        $this->_nonReadableConfig = dirname(__FILE__) . '/_files/nonreadable.ini';
-        $this->_iniFileNoSectionsConfig = dirname(__FILE__) . '/_files/nosections.ini';
-        $this->_iniFileInvalid = dirname(__FILE__) . '/_files/invalid.ini';
+        $this->_iniFileConfig = __DIR__ . '/_files/config.ini';
+        $this->_iniFileAllSectionsConfig = __DIR__ . '/_files/allsections.ini';
+        $this->_iniFileCircularConfig = __DIR__ . '/_files/circular.ini';
+        $this->_iniFileMultipleInheritanceConfig = __DIR__ . '/_files/multipleinheritance.ini';
+        $this->_iniFileSeparatorConfig = __DIR__ . '/_files/separator.ini';
+        $this->_nonReadableConfig = __DIR__ . '/_files/nonreadable.ini';
+        $this->_iniFileNoSectionsConfig = __DIR__ . '/_files/nosections.ini';
+        $this->_iniFileInvalid = __DIR__ . '/_files/invalid.ini';
     }
 
     public function testLoadSingleSection()
@@ -205,7 +205,7 @@ public function testZF2508NoSections()
 
     public function testZF2843NoSectionNoTree()
     {
-        $filename = dirname(__FILE__) . '/_files/zf2843.ini';
+        $filename = __DIR__ . '/_files/zf2843.ini';
         $config = new Ini($filename, null, array('nestSeparator' => '.'));
 
         $this->assertEquals('123', $config->abc);
@@ -229,7 +229,7 @@ public function testZF3196_InvalidIniFile()
     public function testZF8159()
     {
         $config = new Ini(
-            dirname(__FILE__) . '/_files/zf8159.ini',
+            __DIR__ . '/_files/zf8159.ini',
             array('first', 'second')
         );
         
@@ -249,7 +249,7 @@ public function testZF8159()
      */
     public function testArraysOfKeysCreatedUsingAttributesAndKeys()
     {
-        $filename = dirname(__FILE__) . '/_files/zf5800.ini';
+        $filename = __DIR__ . '/_files/zf5800.ini';
         $config = new Ini($filename, 'dev');
         $this->assertEquals('nice.guy@company.com', $config->receiver->{0}->mail);
         $this->assertEquals('1', $config->receiver->{0}->html);
@@ -261,7 +261,7 @@ public function testArraysOfKeysCreatedUsingAttributesAndKeys()
      */
     public function testPreservationOfIntegerKeys()
     {
-        $filename = dirname(__FILE__) . '/_files/zf6508.ini';
+        $filename = __DIR__ . '/_files/zf6508.ini';
         $config = new Ini($filename, 'all');
         $this->assertEquals(true, isset($config->{1002}));
         
diff --git a/test/Writer/ArrayWriterTest.php b/test/Writer/ArrayWriterTest.php
index 7e42218..d617d90 100644
--- a/test/Writer/ArrayWriterTest.php
+++ b/test/Writer/ArrayWriterTest.php
@@ -39,7 +39,7 @@ class ArrayWriterTest extends \PHPUnit_Framework_TestCase
 
     public function setUp()
     {
-        $this->_tempName = tempnam(dirname(__FILE__) . '/temp', 'tmp');
+        $this->_tempName = tempnam(__DIR__ . '/temp', 'tmp');
     }
 
     public function tearDown()
diff --git a/test/Writer/IniTest.php b/test/Writer/IniTest.php
index 5604d36..3c7084c 100644
--- a/test/Writer/IniTest.php
+++ b/test/Writer/IniTest.php
@@ -40,7 +40,7 @@ class IniTest extends \PHPUnit_Framework_TestCase
 
     public function setUp()
     {
-        $this->_tempName = tempnam(dirname(__FILE__) . '/temp', 'tmp');
+        $this->_tempName = tempnam(__DIR__ . '/temp', 'tmp');
     }
 
     public function tearDown()
@@ -97,7 +97,7 @@ public function testNoSection()
 
     public function testWriteAndReadOriginalFile()
     {
-        $config = new IniConfig(dirname(__FILE__) . '/files/allsections.ini', null, array('skipExtends' => true));
+        $config = new IniConfig(__DIR__ . '/files/allsections.ini', null, array('skipExtends' => true));
 
         $writer = new Ini(array('config' => $config, 'filename' => $this->_tempName));
         $writer->write();
@@ -112,7 +112,7 @@ public function testWriteAndReadOriginalFile()
 
     public function testWriteAndReadSingleSection()
     {
-        $config = new IniConfig(dirname(__FILE__) . '/files/allsections.ini', 'staging', array('skipExtends' => true));
+        $config = new IniConfig(__DIR__ . '/files/allsections.ini', 'staging', array('skipExtends' => true));
 
         $writer = new Ini(array('config' => $config, 'filename' => $this->_tempName));
         $writer->write();
@@ -175,7 +175,7 @@ public function testRenderWithoutSections()
 
     public function testRenderWithoutSections2()
     {
-        $config = new IniConfig(dirname(__FILE__) . '/files/allsections.ini', null, array('skipExtends' => true));
+        $config = new IniConfig(__DIR__ . '/files/allsections.ini', null, array('skipExtends' => true));
 
         $writer = new Ini();
         $writer->setRenderWithoutSections();
diff --git a/test/Writer/XmlTest.php b/test/Writer/XmlTest.php
index f95043e..d4ff8fe 100644
--- a/test/Writer/XmlTest.php
+++ b/test/Writer/XmlTest.php
@@ -40,7 +40,7 @@ class XmlTest extends \PHPUnit_Framework_TestCase
 
     public function setUp()
     {
-        $this->_tempName = tempnam(dirname(__FILE__) . '/temp', 'tmp');
+        $this->_tempName = tempnam(__DIR__ . '/temp', 'tmp');
     }
 
     public function tearDown()
@@ -99,7 +99,7 @@ public function testNoSection()
 
     public function testWriteAndReadOriginalFile()
     {
-        $config = new XmlConfig(dirname(__FILE__) . '/files/allsections.xml', null, array('skipExtends' => true));
+        $config = new XmlConfig(__DIR__ . '/files/allsections.xml', null, array('skipExtends' => true));
 
         $writer = new Xml(array('config' => $config, 'filename' => $this->_tempName));
         $writer->write();
@@ -113,7 +113,7 @@ public function testWriteAndReadOriginalFile()
 
     public function testWriteAndReadSingleSection()
     {
-        $config = new XmlConfig(dirname(__FILE__) . '/files/allsections.xml', 'staging', array('skipExtends' => true));
+        $config = new XmlConfig(__DIR__ . '/files/allsections.xml', 'staging', array('skipExtends' => true));
 
         $writer = new Xml(array('config' => $config, 'filename' => $this->_tempName));
         $writer->write();
diff --git a/test/XmlTest.php b/test/XmlTest.php
index 9497cc8..4ee45bc 100644
--- a/test/XmlTest.php
+++ b/test/XmlTest.php
@@ -41,16 +41,16 @@ class XmlTest extends \PHPUnit_Framework_TestCase
 
     public function setUp()
     {
-        $this->_xmlFileConfig = dirname(__FILE__) . '/_files/config.xml';
-        $this->_xmlFileAllSectionsConfig = dirname(__FILE__) . '/_files/allsections.xml';
-        $this->_xmlFileCircularConfig = dirname(__FILE__) . '/_files/circular.xml';
-        $this->_xmlFileTopLevelStringConfig = dirname(__FILE__) . '/_files/toplevelstring.xml';
-        $this->_xmlFileOneTopLevelStringConfig = dirname(__FILE__) . '/_files/onetoplevelstring.xml';
-        $this->_nonReadableConfig = dirname(__FILE__) . '/_files/nonreadable.xml';
-        $this->_xmlFileSameNameKeysConfig = dirname(__FILE__) . '/_files/array.xml';
-        $this->_xmlFileShortParamsOneConfig = dirname(__FILE__) . '/_files/shortparamsone.xml';
-        $this->_xmlFileShortParamsTwoConfig = dirname(__FILE__) . '/_files/shortparamstwo.xml';
-        $this->_xmlFileInvalid = dirname(__FILE__) . '/_files/invalid.xml';
+        $this->_xmlFileConfig = __DIR__ . '/_files/config.xml';
+        $this->_xmlFileAllSectionsConfig = __DIR__ . '/_files/allsections.xml';
+        $this->_xmlFileCircularConfig = __DIR__ . '/_files/circular.xml';
+        $this->_xmlFileTopLevelStringConfig = __DIR__ . '/_files/toplevelstring.xml';
+        $this->_xmlFileOneTopLevelStringConfig = __DIR__ . '/_files/onetoplevelstring.xml';
+        $this->_nonReadableConfig = __DIR__ . '/_files/nonreadable.xml';
+        $this->_xmlFileSameNameKeysConfig = __DIR__ . '/_files/array.xml';
+        $this->_xmlFileShortParamsOneConfig = __DIR__ . '/_files/shortparamsone.xml';
+        $this->_xmlFileShortParamsTwoConfig = __DIR__ . '/_files/shortparamstwo.xml';
+        $this->_xmlFileInvalid = __DIR__ . '/_files/invalid.xml';
     }
 
     public function testLoadSingleSection()