/**
  * Tests OxConfigFile::isVarSet() method
  */
 public function testIsVarSet()
 {
     $filePath = $this->createFile('config.inc.php', '<?php $this->testVar = "testValue";');
     $oConfigFile = new oxConfigFile($filePath);
     $this->assertTrue($oConfigFile->isVarSet("testVar"), "Variable is supposed to be set");
     $this->assertFalse($oConfigFile->isVarSet("nonExistingVar"), "Variable is not supposed to be set");
 }