$bootstrap = Mage_TestSuite_Magento::app(); $bootstrap->init('default');
class My_Test_Case extends PHPUnit_Framework_TestCase { protected function setUp() { $this->bootstrap = Mage_TestSuite_Magento::app(); $this->bootstrap->init('default'); } public function testSomething() { ... } }In this example, a test case is set up with the `setUp()` method, which initializes the Magento application using the `Magento_TestFramework_Helper_Bootstrap` class. This ensures that the application is properly configured and ready for testing. It seems that the `Magento_TestFramework_Helper_Bootstrap` belongs to the Magento Test Framework, which is a package library for Magento that provides tools and utilities for testing Magento applications.