| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * Base class file for all acceptance tests. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * @package automattic/jetpack-autoloader | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Automattic\Jetpack\Autoloader\jpCurrent\Path_Processor; | 
                            
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                | 9 |  |  | use Automattic\Jetpack\Autoloader\jpCurrent\Plugins_Handler; | 
                            
                    |  |  |  | 
                                                                                        
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                | 10 |  |  | use PHPUnit\Framework\TestCase; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * Class Acceptance_Test_Case. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | abstract class Acceptance_Test_Case extends TestCase { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 	 * A constant for identifying the current plugin installed as an mu-plugin in the tests. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	const CURRENT_MU = Test_Plugin_Factory::CURRENT . 'mu'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 	 * An array containing the versions and paths of all of the autoloaders we have installed for the test class. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 	 * @var string[] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 	private $installed_autoloaders; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 	 * An array containing the versions and paths of autoloaders that have been symlinked. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 	 * @var string[] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 	private $symlinked_autoloaders; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 	 * Setup runs before each test. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | 	 * @before | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 	public function set_up() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 		// Ensure that the current autoloader is always installed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 		$this->installed_autoloaders = array( Test_Plugin_Factory::CURRENT => TEST_PLUGIN_DIR ); | 
                            
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                | 44 |  |  | 		$this->symlinked_autoloaders = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | 		// We need to install the current plugin as an mu-plugin in many tests. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 		$this->install_autoloaders( self::CURRENT_MU ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | 	 * Teardown runs after each test. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | 	 * @after | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 	public function tear_down() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 		// Erase all of the directory symlinks since we're done with them. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 		foreach ( $this->symlinked_autoloaders as $dir ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |             // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  | 			@unlink( $dir ); | 
                            
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                | 60 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | 	 * Installs the given autoloader or autoloaders so that they can be used by tests. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | 	 * @param string|string[] $version_or_versions The version or array of versions of the autoloader to install. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | 	 *                                             A suffix of 'mu' designates that the plugin should be an mu-plugin. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 	protected function install_autoloaders( $version_or_versions ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 		if ( ! is_array( $version_or_versions ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 			$version_or_versions = array( $version_or_versions ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  | 		foreach ( $version_or_versions as $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  | 			if ( isset( $this->installed_autoloaders[ $version ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  | 				$this->fail( 'The plugin has already been installed.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  | 			// A suffix of 'mu' means that the plugin should be installed to mu-plugins. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | 			$is_mu_plugin = 'mu' === substr( $version, -2 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  | 			$path                                    = Test_Plugin_Factory::create_test_plugin( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  | 				$is_mu_plugin, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  | 				$is_mu_plugin ? substr( $version, 0, -2 ) : $version | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  | 			)->make(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  | 			$this->installed_autoloaders[ $version ] = $path; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 	 * Installs a symlink to a plugin version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 	 * @param string $version      The version of the autoloader we want to symlink to. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | 	 * @param string $is_mu_plugin Whether or not the symlink should be an mu-plugin. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 	 * @param string $symlink_key  The key for the symlink in the installed plugin list. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 	protected function install_autoloader_symlink( $version, $is_mu_plugin, $symlink_key ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 		if ( isset( $this->symlinked_autoloaders[ $symlink_key ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 			$this->fail( 'The symlink has already been installed.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 		// The location of the symlink depends on whether it's an mu-plugin or not. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 		if ( $is_mu_plugin ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  | 			$symlink_dir = WPMU_PLUGIN_DIR . DIRECTORY_SEPARATOR . $symlink_key; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 			$symlink_dir = WP_PLUGIN_DIR . DIRECTORY_SEPARATOR . $symlink_key; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  | 		// Create the symlink to the plugin's version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  | 		$plugin_dir = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |         // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 		@symlink( $plugin_dir, $symlink_dir ); | 
                            
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                | 114 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 		// Record it as installed but also as symlinked so that it can be cleaned up. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 		$this->installed_autoloaders[ $symlink_key ] = $symlink_dir; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 		$this->symlinked_autoloaders[ $symlink_key ] = $symlink_dir; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  | 	 * Fetches the path for an installed autoloader. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  | 	 * @param string $version The version of autoloader we want a path to. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  | 	 * @return string The path to the autoloader. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  | 	protected function get_autoloader_path( $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  | 		if ( ! isset( $this->installed_autoloaders[ $version ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  | 			$this->fail( "The $version autoloader has not been installed." ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  | 		return $this->installed_autoloaders[ $version ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  | 	 * Loads an autoloader and tracks whether or not a reset occurred. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  | 	 * @param string $version The version of the autoloader we want to load. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  | 	protected function load_plugin_autoloader( $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  | 		$plugin_dir = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  | 		// We're going to store a value in the classmap to detect when a reset has occurred after loading the autoloader. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  | 		// This isn't perfect (it won't catch successive resets from a new autoloader discovering newer autoloaders) but | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  | 		// it will at least catch the most common reset scenarios that we can build assertions on. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  | 		global $jetpack_packages_classmap; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  | 		$reset_count = isset( $jetpack_packages_classmap ) ? $jetpack_packages_classmap['reset_count'] : null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  | 		require_once $plugin_dir . '/vendor/autoload_packages.php'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  | 		// Since the classmap was not erased we can assume no reset occurred. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  | 		if ( isset( $jetpack_packages_classmap['reset_count'] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  | 			return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  | 		// Since we can assume after every load we set the count we know a null value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  | 		// means this was the first time the autoloader was executed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  | 		if ( ! isset( $reset_count ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  | 			$jetpack_packages_classmap['reset_count'] = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  | 			$jetpack_packages_classmap['reset_count'] = $reset_count + 1; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  | 	 * Executes all of the given autoloader versions and triggers a shutdown. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  | 	 * Note: This method sorts all of the mu-plugins to the front of the array to replicate WordPress' loading order. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  | 	 * @param string[] $versions             The array of versions to execute in the order they should be loaded. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  | 	 * @param bool     $after_plugins_loaded Whether or not the shutdown should be after the plugins_loaded action. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  | 	protected function execute_autoloader_chain( $versions, $after_plugins_loaded ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  | 		// Place all of the mu-plugins at the front of the array to replicate WordPress' load order. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  | 		// Take care not to affect the order in any other way so that the caller can define the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  | 		// rest of the load order semantics. This functionality is mostly to prevent accidents. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  | 		$mu_versions = array_filter( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  | 			$versions, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  | 			function ( $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  | 				return 'mu' === substr( $version, -2 ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  | 		foreach ( $mu_versions as $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  | 			$this->load_plugin_autoloader( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  | 		foreach ( $versions as $key => $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  | 			// We've already loaded these! | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  | 			if ( isset( $mu_versions[ $key ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  | 				continue; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  | 			$this->load_plugin_autoloader( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  | 		$this->trigger_shutdown( $after_plugins_loaded ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  | 	 * Adds an autoloader plugin to the activated list. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  | 	 * @param string $version  The version of autoloader that we want to activate. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  | 	 * @param bool   $sitewide Indicates whether or not the plugin should be site active. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  | 	protected function activate_autoloader( $version, $sitewide = false ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  | 		$plugin_dir = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  | 		if ( false !== strpos( $plugin_dir, 'mu-plugins' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  | 			$this->fail( 'Plugins in mu-plugins cannot be activated.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  | 		// The slug is the last segment of the path in WordPress plugin slug format. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  | 		$slug = basename( $plugin_dir ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  | 		$slug = "$slug/$slug.php"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  | 		// Retrieve the list from the appropriate option. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  | 		if ( $sitewide ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  | 			$active_plugins = get_site_option( 'active_sitewide_plugins' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  | 			$active_plugins = get_option( 'active_plugins' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  | 		if ( ! $active_plugins ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  | 			$active_plugins = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  | 		if ( in_array( $slug, $active_plugins, true ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  | 			return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  | 		$active_plugins[] = $slug; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  | 		// Make sure to set the list back to the appropriate option. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  | 		if ( $sitewide ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  | 			add_test_site_option( 'active_sitewide_plugins', $active_plugins ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  | 		} else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  | 			add_test_option( 'active_plugins', $active_plugins ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  | 	 * Triggers a shutdown action for the autoloader. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  | 	 * @param bool $after_plugins_loaded Whether or not we should execute 'plugins_loaded' before shutting down. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  | 	protected function trigger_shutdown( $after_plugins_loaded ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  | 		if ( $after_plugins_loaded ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  | 			do_action( 'plugins_loaded' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  | 		do_action( 'shutdown' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  | 	 * Erases the autoloader cache. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  | 	protected function erase_cache() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  | 		set_transient( Plugins_Handler::TRANSIENT_KEY, array() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  | 	 * Adds a version or array of versions to the autoloader cache. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  | 	 * @param string|string[] $version_or_versions The version or array of versions of the autoloader that we want to cache. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  | 	protected function cache_plugin( $version_or_versions ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  | 		if ( ! is_array( $version_or_versions ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  | 			$version_or_versions = array( $version_or_versions ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  | 		// Use the path processor so we can replicate the real cache. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  | 		$processor = new Path_Processor(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  | 		$plugins = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  | 		foreach ( $version_or_versions as $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  | 			$plugin    = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  | 			$plugins[] = $processor->tokenize_path_constants( $plugin ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  | 		$transient = get_transient( Plugins_Handler::TRANSIENT_KEY ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  | 		if ( empty( $transient ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  | 			$transient = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  | 		$transient = array_merge( $transient, $plugins ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  | 		// The cache is always sorted. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  | 		sort( $transient ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  | 		// Store the cache now that we've added the plugin or plugins. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  | 		set_transient( Plugins_Handler::TRANSIENT_KEY, $transient ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  | 	 * Asserts that the autoloader was reset a given number of times. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  | 	 * @param int $count The number of resets we expect. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  | 	protected function assertAutoloaderResetCount( $count ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  | 		global $jetpack_packages_classmap; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  | 		$reset_count = isset( $jetpack_packages_classmap ) ? $jetpack_packages_classmap['reset_count'] : 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 |  |  | 		$this->assertEquals( $count, $reset_count, 'The number of autoloader resets did not match what was expected.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  | 	 * Asserts that the autoloader has been initialized to a specific version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  | 	 * @param string $version The version of the autoloader we expect. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  | 	protected function assertAutoloaderVersion( $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  | 		if ( Test_Plugin_Factory::CURRENT === $version || self::CURRENT_MU === $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  | 			$version = Test_Plugin_Factory::VERSION_CURRENT; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  | 		global $jetpack_autoloader_latest_version; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  | 		$this->assertEquals( $version, $jetpack_autoloader_latest_version, 'The version of the autoloader did not match what was expected.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  | 	 * Asserts that the autoloader is able to provide the given class. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  | 	 * @param string $fqn The fully qualified name of the class we want to load. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 322 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 323 |  |  | 	protected function assertAutoloaderProvidesClass( $fqn ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 324 |  |  | 		global $jetpack_autoloader_latest_version; | 
            
                                                                        
                            
            
                                    
            
            
                | 325 |  |  | 		if ( ! isset( $jetpack_autoloader_latest_version ) ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 326 |  |  | 			$this->fail( 'There is no autoloader loaded to check.' ); | 
            
                                                                        
                            
            
                                    
            
            
                | 327 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 328 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 329 |  |  | 		// We're going to check for v1, < v2.4, and >= v2.4 autoloaders directly. | 
            
                                                                        
                            
            
                                    
            
            
                | 330 |  |  | 		// This is prefereable to trying to load the class because it controls | 
            
                                                                        
                            
            
                                    
            
            
                | 331 |  |  | 		// for other autoloaders that may have been registered by mistake. | 
            
                                                                        
                            
            
                                    
            
            
                | 332 |  |  | 		global $jetpack_packages_classes; // v1 used this global. | 
            
                                                                        
                            
            
                                    
            
            
                | 333 |  |  | 		global $jetpack_packages_classmap; // v2.0 - v2.3 used only the classmap. | 
            
                                                                        
                            
            
                                    
            
            
                | 334 |  |  | 		global $jetpack_autoloader_loader; // v2.4 introduced the loader with PSR-4 support. | 
            
                                                                        
                            
            
                                    
            
            
                | 335 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 336 |  |  | 		$file = null; | 
            
                                                                        
                            
            
                                    
            
            
                | 337 |  |  | 		if ( isset( $jetpack_autoloader_loader ) ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 338 |  |  | 			$file = $jetpack_autoloader_loader->find_class_file( $fqn ); | 
            
                                                                        
                            
            
                                    
            
            
                | 339 |  |  | 		} elseif ( isset( $jetpack_packages_classmap[ $fqn ] ) ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 340 |  |  | 			$file = $jetpack_packages_classmap[ $fqn ]; | 
            
                                                                        
                            
            
                                    
            
            
                | 341 |  |  | 		} elseif ( isset( $jetpack_packages_classes[ $fqn ] ) ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 342 |  |  | 			$file = $jetpack_packages_classes[ $fqn ]; | 
            
                                                                        
                            
            
                                    
            
            
                | 343 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 344 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 345 |  |  | 		$this->assertNotNull( $file, "The autoloader did not provide the '$fqn' class." ); | 
            
                                                                        
                            
            
                                    
            
            
                | 346 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 |  |  | 	 * Asserts that the autoloader did not find an unknown plugin. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  | 	 * @param string $version The version of autoloader we expect to be known. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 352 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 353 |  |  | 	protected function assertAutoloaderNotFoundUnknown( $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 354 |  |  | 		$plugin = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 355 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 356 |  |  | 		global $jetpack_autoloader_activating_plugins_paths; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 357 |  |  | 		$this->assertNotContains( $plugin, $jetpack_autoloader_activating_plugins_paths, 'The autoloader registered the plugin as unknown.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 358 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 359 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 360 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 361 |  |  | 	 * Asserts that the autoloader found an unknown pugin. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 362 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 363 |  |  | 	 * @param string $version The version of autoloader we expect to be unknown. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 364 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 365 |  |  | 	protected function assertAutoloaderFoundUnknown( $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 366 |  |  | 		$plugin = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 367 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 368 |  |  | 		global $jetpack_autoloader_activating_plugins_paths; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 369 |  |  | 		$this->assertContains( $plugin, $jetpack_autoloader_activating_plugins_paths, 'The autoloader did not register the plugin as unknown.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 370 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 371 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 372 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 373 |  |  | 	 * Asserts that the autoloader cache is empty. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 374 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 375 |  |  | 	protected function assertAutoloaderCacheEmpty() { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 376 |  |  | 		$transient = get_transient( Plugins_Handler::TRANSIENT_KEY ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 377 |  |  | 		if ( empty( $transient ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 378 |  |  | 			$transient = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 379 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 380 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 381 |  |  | 		$this->assertEmpty( $transient, 'The autoloader cache was not empty.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 382 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 383 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 384 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 385 |  |  | 	 * Asserts that the autoloader cache only contains the given version or array of version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 386 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 387 |  |  | 	 * @param string|string[] $version_or_versions The version or array of versions that we expect. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 388 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 389 |  |  | 	protected function assertAutoloaderCacheEquals( $version_or_versions ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 390 |  |  | 		if ( ! is_array( $version_or_versions ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 391 |  |  | 			$version_or_versions = array( $version_or_versions ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 392 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 393 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 394 |  |  | 		// Use the path processor so we can replicate the real cache. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 395 |  |  | 		$processor = new Path_Processor(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 396 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 397 |  |  | 		$plugins = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 398 |  |  | 		foreach ( $version_or_versions as $version ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 399 |  |  | 			$plugin    = $this->get_autoloader_path( $version ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 400 |  |  | 			$plugins[] = $processor->tokenize_path_constants( $plugin ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 401 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 402 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 403 |  |  | 		// The autoloader cache is always sorted. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 404 |  |  | 		sort( $plugins ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 405 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 406 |  |  | 		$transient = get_transient( Plugins_Handler::TRANSIENT_KEY ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 407 |  |  | 		if ( empty( $transient ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 408 |  |  | 			$transient = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 409 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 410 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 411 |  |  | 		$this->assertEquals( $plugins, $transient, 'The autoloader cache did not match what was expected.' ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 412 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 413 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 414 |  |  |  | 
            
                        
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: