Index: tests/t3lib/t3lib_pagerenderer_testcase.php
===================================================================
--- tests/t3lib/t3lib_pagerenderer_testcase.php	(revision 7247)
+++ tests/t3lib/t3lib_pagerenderer_testcase.php	(working copy)
@@ -375,7 +375,7 @@
 	*/
 	public function testAddCssInlineBlockForceOnTop() {
 
-		$expectedReturnValue = '/*general1*/' . chr(10) . 'h1 {margin:20px;}' . chr(10) . '/*general*/' . chr(10) . 'body {margin:20px;}';
+		$expectedReturnValue = '/*general1*/' . LF . 'h1 {margin:20px;}' . LF . '/*general*/' . LF . 'body {margin:20px;}';
 		$this->fixture->addCssInlineBlock('general', 'body {margin:20px;}');
 		$this->fixture->addCssInlineBlock('general1', 'h1 {margin:20px;}', NULL, TRUE);
 		$out = $this->fixture->render();
@@ -424,7 +424,7 @@
 	*/
     public function testLoadExtJS() {
 
-		$expectedReturnValue = '<script src="contrib/extjs/adapter/jquery/ext-jquery-adapter.js" type="text/javascript"></script>' . chr(10) . '<script src="contrib/extjs/ext-all.js" type="text/javascript"></script>';
+		$expectedReturnValue = '<script src="contrib/extjs/adapter/jquery/ext-jquery-adapter.js" type="text/javascript"></script>' . LF . '<script src="contrib/extjs/ext-all.js" type="text/javascript"></script>';
 		$this->fixture->loadExtJS(TRUE, TRUE, 'jquery');
 		$out = $this->fixture->render();
 
@@ -456,7 +456,7 @@
 	*/
 	public function testEnableExtJsDebug() {
 
-		$expectedReturnValue = '<script src="contrib/extjs/adapter/jquery/ext-jquery-adapter.js" type="text/javascript"></script>' . chr(10) . '<script src="contrib/extjs/ext-all-debug.js" type="text/javascript"></script>';
+		$expectedReturnValue = '<script src="contrib/extjs/adapter/jquery/ext-jquery-adapter.js" type="text/javascript"></script>' . LF . '<script src="contrib/extjs/ext-all-debug.js" type="text/javascript"></script>';
 		$this->fixture->loadExtJS(TRUE, TRUE, 'jquery');
 		$this->fixture->enableExtJsDebug();
 		$out = $this->fixture->render();
Index: tests/t3lib/t3lib_div_testcase.php
===================================================================
--- tests/t3lib/t3lib_div_testcase.php	(revision 7247)
+++ tests/t3lib/t3lib_div_testcase.php	(working copy)
@@ -92,7 +92,7 @@
 	 * @test
 	 */
 	public function checkTrimExplodeRemovesNewLines() {
-		$testString = ' a , b , ' . chr(10) . ' ,d ,,  e,f,';
+		$testString = ' a , b , ' . LF . ' ,d ,,  e,f,';
 		$expectedArray = array('a', 'b', 'd', 'e', 'f');
 		$actualArray = t3lib_div::trimExplode(',', $testString, true);
 
@@ -820,7 +820,7 @@
 	public function quoteJSvalueEscapesTab() {
 		$this->assertEquals(
 			"'" . '\t' . "'",
-			t3lib_div::quoteJSvalue(chr(9))
+			t3lib_div::quoteJSvalue(TAB)
 		);
 	}
 
@@ -830,7 +830,7 @@
 	public function quoteJSvalueEscapesLinefeed() {
 		$this->assertEquals(
 			"'" . '\n' . "'",
-			t3lib_div::quoteJSvalue(chr(10))
+			t3lib_div::quoteJSvalue(LF)
 		);
 	}
 
@@ -840,7 +840,7 @@
 	public function quoteJSvalueEscapesCarriageReturn() {
 		$this->assertEquals(
 			"'" . '\r' . "'",
-			t3lib_div::quoteJSvalue(chr(13))
+			t3lib_div::quoteJSvalue(CR)
 		);
 	}
 
Index: tests/regularexpression_testcase.php
===================================================================
--- tests/regularexpression_testcase.php	(revision 7247)
+++ tests/regularexpression_testcase.php	(working copy)
@@ -96,8 +96,8 @@
 	 */
 	public function split1() {
 		$string = 'test1, test2|test3;test4';
-		$array1 = split(',|;|'.chr(10),$string);
-		$array2 = preg_split('/[,;'.chr(10).']/',$string);
+		$array1 = split(',|;|'.LF,$string);
+		$array2 = preg_split('/[,;'.LF.']/',$string);
 		foreach($array1 as $key => $value) {
 			$this->assertTrue(
 				($array2[$key] === $value)