Acceptance_Test_Case::activate_autoloader() - Code Metrics - Inspection of "Update dependency node-sass to v5" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

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Push — renovate/node-sass-5.x ( d43362...b9b7fb )

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created 2021-02-20 01:14 UTC

Acceptance_Test_Case::activate_autoloader() B

↳ Parent: Acceptance_Test_Case

Complexity

Conditions	6
Paths	24

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
nc	24
nop	2
dl	0
loc	35
rs	8.7377
c	0
b	0
f	0

<?php
/**
 * Base class file for all acceptance tests.
 *
 * @package automattic/jetpack-autoloader
 */

use Automattic\Jetpack\Autoloader\jpCurrent\Path_Processor;
.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php
use Automattic\Jetpack\Autoloader\jpCurrent\Plugins_Handler;
.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php
use PHPUnit\Framework\TestCase;

/**
 * Class Acceptance_Test_Case.
 */
abstract class Acceptance_Test_Case extends TestCase {

	/**
	 * A constant for identifying the current plugin installed as an mu-plugin in the tests.
	 */
	const CURRENT_MU = Test_Plugin_Factory::CURRENT . 'mu';

	/**
	 * An array containing the versions and paths of all of the autoloaders we have installed for the test class.
	 *
	 * @var string[]
	 */
	private $installed_autoloaders;

	/**
	 * An array containing the versions and paths of autoloaders that have been symlinked.
	 *
	 * @var string[]
	 */
	private $symlinked_autoloaders;

	/**
	 * Setup runs before each test.
	 *
	 * @before
	 */
	public function set_up() {
		// Ensure that the current autoloader is always installed.
		$this->installed_autoloaders = array( Test_Plugin_Factory::CURRENT => TEST_PLUGIN_DIR );

		$this->symlinked_autoloaders = array();

		// We need to install the current plugin as an mu-plugin in many tests.
		$this->install_autoloaders( self::CURRENT_MU );
	}

	/**
	 * Teardown runs after each test.
	 *
	 * @after
	 */
	public function tear_down() {
		// Erase all of the directory symlinks since we're done with them.
		foreach ( $this->symlinked_autoloaders as $dir ) {
            // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
			@unlink( $dir );
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		}
	}

	/**
	 * Installs the given autoloader or autoloaders so that they can be used by tests.
	 *
	 * @param string|string[] $version_or_versions The version or array of versions of the autoloader to install.
	 *                                             A suffix of 'mu' designates that the plugin should be an mu-plugin.
	 */
	protected function install_autoloaders( $version_or_versions ) {
		if ( ! is_array( $version_or_versions ) ) {
			$version_or_versions = array( $version_or_versions );
		}

		foreach ( $version_or_versions as $version ) {
			if ( isset( $this->installed_autoloaders[ $version ] ) ) {
				$this->fail( 'The plugin has already been installed.' );
			}

			// A suffix of 'mu' means that the plugin should be installed to mu-plugins.
			$is_mu_plugin = 'mu' === substr( $version, -2 );

			$path                                    = Test_Plugin_Factory::create_test_plugin(
				$is_mu_plugin,
				$is_mu_plugin ? substr( $version, 0, -2 ) : $version
			)->make();
			$this->installed_autoloaders[ $version ] = $path;
		}
	}

	/**
	 * Installs a symlink to a plugin version.
	 *
	 * @param string $version      The version of the autoloader we want to symlink to.
	 * @param string $is_mu_plugin Whether or not the symlink should be an mu-plugin.
	 * @param string $symlink_key  The key for the symlink in the installed plugin list.
	 */
	protected function install_autoloader_symlink( $version, $is_mu_plugin, $symlink_key ) {
		if ( isset( $this->symlinked_autoloaders[ $symlink_key ] ) ) {
			$this->fail( 'The symlink has already been installed.' );
		}

		// The location of the symlink depends on whether it's an mu-plugin or not.
		if ( $is_mu_plugin ) {
			$symlink_dir = WPMU_PLUGIN_DIR . DIRECTORY_SEPARATOR . $symlink_key;
		} else {
			$symlink_dir = WP_PLUGIN_DIR . DIRECTORY_SEPARATOR . $symlink_key;
		}

		// Create the symlink to the plugin's version.
		$plugin_dir = $this->get_autoloader_path( $version );

        // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		@symlink( $plugin_dir, $symlink_dir );
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

		// Record it as installed but also as symlinked so that it can be cleaned up.
		$this->installed_autoloaders[ $symlink_key ] = $symlink_dir;
		$this->symlinked_autoloaders[ $symlink_key ] = $symlink_dir;
	}

	/**
	 * Fetches the path for an installed autoloader.
	 *
	 * @param string $version The version of autoloader we want a path to.
	 * @return string The path to the autoloader.
	 */
	protected function get_autoloader_path( $version ) {
		if ( ! isset( $this->installed_autoloaders[ $version ] ) ) {
			$this->fail( "The $version autoloader has not been installed." );
		}

		return $this->installed_autoloaders[ $version ];
	}

	/**
	 * Loads an autoloader and tracks whether or not a reset occurred.
	 *
	 * @param string $version The version of the autoloader we want to load.
	 */
	protected function load_plugin_autoloader( $version ) {
		$plugin_dir = $this->get_autoloader_path( $version );

		// We're going to store a value in the classmap to detect when a reset has occurred after loading the autoloader.
		// This isn't perfect (it won't catch successive resets from a new autoloader discovering newer autoloaders) but
		// it will at least catch the most common reset scenarios that we can build assertions on.
		global $jetpack_packages_classmap;
		$reset_count = isset( $jetpack_packages_classmap ) ? $jetpack_packages_classmap['reset_count'] : null;

		require_once $plugin_dir . '/vendor/autoload_packages.php';

		// Since the classmap was not erased we can assume no reset occurred.
		if ( isset( $jetpack_packages_classmap['reset_count'] ) ) {
			return;
		}

		// Since we can assume after every load we set the count we know a null value
		// means this was the first time the autoloader was executed.
		if ( ! isset( $reset_count ) ) {
			$jetpack_packages_classmap['reset_count'] = 0;
		} else {
			$jetpack_packages_classmap['reset_count'] = $reset_count + 1;
		}
	}

	/**
	 * Executes all of the given autoloader versions and triggers a shutdown.
	 *
	 * Note: This method sorts all of the mu-plugins to the front of the array to replicate WordPress' loading order.
	 *
	 * @param string[] $versions             The array of versions to execute in the order they should be loaded.
	 * @param bool     $after_plugins_loaded Whether or not the shutdown should be after the plugins_loaded action.
	 */
	protected function execute_autoloader_chain( $versions, $after_plugins_loaded ) {
		// Place all of the mu-plugins at the front of the array to replicate WordPress' load order.
		// Take care not to affect the order in any other way so that the caller can define the
		// rest of the load order semantics. This functionality is mostly to prevent accidents.
		$mu_versions = array_filter(
			$versions,
			function ( $version ) {
				return 'mu' === substr( $version, -2 );
			}
		);

		foreach ( $mu_versions as $version ) {
			$this->load_plugin_autoloader( $version );
		}
		foreach ( $versions as $key => $version ) {
			// We've already loaded these!
			if ( isset( $mu_versions[ $key ] ) ) {
				continue;
			}

			$this->load_plugin_autoloader( $version );
		}

		$this->trigger_shutdown( $after_plugins_loaded );
	}

	/**
	 * Adds an autoloader plugin to the activated list.
	 *
	 * @param string $version  The version of autoloader that we want to activate.
	 * @param bool   $sitewide Indicates whether or not the plugin should be site active.
	 */
	protected function activate_autoloader( $version, $sitewide = false ) {
		$plugin_dir = $this->get_autoloader_path( $version );

		if ( false !== strpos( $plugin_dir, 'mu-plugins' ) ) {
			$this->fail( 'Plugins in mu-plugins cannot be activated.' );
		}

		// The slug is the last segment of the path in WordPress plugin slug format.
		$slug = basename( $plugin_dir );
		$slug = "$slug/$slug.php";

		// Retrieve the list from the appropriate option.
		if ( $sitewide ) {
			$active_plugins = get_site_option( 'active_sitewide_plugins' );
		} else {
			$active_plugins = get_option( 'active_plugins' );
		}

		if ( ! $active_plugins ) {
			$active_plugins = array();
		}

		if ( in_array( $slug, $active_plugins, true ) ) {
			return;
		}

		$active_plugins[] = $slug;

		// Make sure to set the list back to the appropriate option.
		if ( $sitewide ) {
			add_test_site_option( 'active_sitewide_plugins', $active_plugins );
		} else {
			add_test_option( 'active_plugins', $active_plugins );
		}
	}

	/**
	 * Triggers a shutdown action for the autoloader.
	 *
	 * @param bool $after_plugins_loaded Whether or not we should execute 'plugins_loaded' before shutting down.
	 */
	protected function trigger_shutdown( $after_plugins_loaded ) {
		if ( $after_plugins_loaded ) {
			do_action( 'plugins_loaded' );
		}

		do_action( 'shutdown' );
	}

	/**
	 * Erases the autoloader cache.
	 */
	protected function erase_cache() {
		set_transient( Plugins_Handler::TRANSIENT_KEY, array() );
	}

	/**
	 * Adds a version or array of versions to the autoloader cache.
	 *
	 * @param string|string[] $version_or_versions The version or array of versions of the autoloader that we want to cache.
	 */
	protected function cache_plugin( $version_or_versions ) {
		if ( ! is_array( $version_or_versions ) ) {
			$version_or_versions = array( $version_or_versions );
		}

		// Use the path processor so we can replicate the real cache.
		$processor = new Path_Processor();

		$plugins = array();
		foreach ( $version_or_versions as $version ) {
			$plugin    = $this->get_autoloader_path( $version );
			$plugins[] = $processor->tokenize_path_constants( $plugin );
		}

		$transient = get_transient( Plugins_Handler::TRANSIENT_KEY );
		if ( empty( $transient ) ) {
			$transient = array();
		}

		$transient = array_merge( $transient, $plugins );

		// The cache is always sorted.
		sort( $transient );

		// Store the cache now that we've added the plugin or plugins.
		set_transient( Plugins_Handler::TRANSIENT_KEY, $transient );
	}

	/**
	 * Asserts that the autoloader was reset a given number of times.
	 *
	 * @param int $count The number of resets we expect.
	 */
	protected function assertAutoloaderResetCount( $count ) {
		global $jetpack_packages_classmap;
		$reset_count = isset( $jetpack_packages_classmap ) ? $jetpack_packages_classmap['reset_count'] : 0;
		$this->assertEquals( $count, $reset_count, 'The number of autoloader resets did not match what was expected.' );
	}

	/**
	 * Asserts that the autoloader has been initialized to a specific version.
	 *
	 * @param string $version The version of the autoloader we expect.
	 */
	protected function assertAutoloaderVersion( $version ) {
		if ( Test_Plugin_Factory::CURRENT === $version || self::CURRENT_MU === $version ) {
			$version = Test_Plugin_Factory::VERSION_CURRENT;
		}

		global $jetpack_autoloader_latest_version;
		$this->assertEquals( $version, $jetpack_autoloader_latest_version, 'The version of the autoloader did not match what was expected.' );
	}

	/**
	 * Asserts that the autoloader is able to provide the given class.
	 *
	 * @param string $fqn The fully qualified name of the class we want to load.
	 */
	protected function assertAutoloaderProvidesClass( $fqn ) {
		global $jetpack_autoloader_latest_version;
		if ( ! isset( $jetpack_autoloader_latest_version ) ) {
			$this->fail( 'There is no autoloader loaded to check.' );
		}

		// We're going to check for v1, < v2.4, and >= v2.4 autoloaders directly.
		// This is prefereable to trying to load the class because it controls
		// for other autoloaders that may have been registered by mistake.
		global $jetpack_packages_classes; // v1 used this global.
		global $jetpack_packages_classmap; // v2.0 - v2.3 used only the classmap.
		global $jetpack_autoloader_loader; // v2.4 introduced the loader with PSR-4 support.

		$file = null;
		if ( isset( $jetpack_autoloader_loader ) ) {
			$file = $jetpack_autoloader_loader->find_class_file( $fqn );
		} elseif ( isset( $jetpack_packages_classmap[ $fqn ] ) ) {
			$file = $jetpack_packages_classmap[ $fqn ];
		} elseif ( isset( $jetpack_packages_classes[ $fqn ] ) ) {
			$file = $jetpack_packages_classes[ $fqn ];
		}

		$this->assertNotNull( $file, "The autoloader did not provide the '$fqn' class." );
	}

	/**
	 * Asserts that the autoloader did not find an unknown plugin.
	 *
	 * @param string $version The version of autoloader we expect to be known.
	 */
	protected function assertAutoloaderNotFoundUnknown( $version ) {
		$plugin = $this->get_autoloader_path( $version );

		global $jetpack_autoloader_activating_plugins_paths;
		$this->assertNotContains( $plugin, $jetpack_autoloader_activating_plugins_paths, 'The autoloader registered the plugin as unknown.' );
	}

	/**
	 * Asserts that the autoloader found an unknown pugin.
	 *
	 * @param string $version The version of autoloader we expect to be unknown.
	 */
	protected function assertAutoloaderFoundUnknown( $version ) {
		$plugin = $this->get_autoloader_path( $version );

		global $jetpack_autoloader_activating_plugins_paths;
		$this->assertContains( $plugin, $jetpack_autoloader_activating_plugins_paths, 'The autoloader did not register the plugin as unknown.' );
	}

	/**
	 * Asserts that the autoloader cache is empty.
	 */
	protected function assertAutoloaderCacheEmpty() {
		$transient = get_transient( Plugins_Handler::TRANSIENT_KEY );
		if ( empty( $transient ) ) {
			$transient = array();
		}

		$this->assertEmpty( $transient, 'The autoloader cache was not empty.' );
	}

	/**
	 * Asserts that the autoloader cache only contains the given version or array of version.
	 *
	 * @param string|string[] $version_or_versions The version or array of versions that we expect.
	 */
	protected function assertAutoloaderCacheEquals( $version_or_versions ) {
		if ( ! is_array( $version_or_versions ) ) {
			$version_or_versions = array( $version_or_versions );
		}

		// Use the path processor so we can replicate the real cache.
		$processor = new Path_Processor();

		$plugins = array();
		foreach ( $version_or_versions as $version ) {
			$plugin    = $this->get_autoloader_path( $version );
			$plugins[] = $processor->tokenize_path_constants( $plugin );
		}

		// The autoloader cache is always sorted.
		sort( $plugins );

		$transient = get_transient( Plugins_Handler::TRANSIENT_KEY );
		if ( empty( $transient ) ) {
			$transient = array();
		}

		$this->assertEquals( $plugins, $transient, 'The autoloader cache did not match what was expected.' );
	}
}


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;
			0 ignored issues – show Bug introduced 2021-01-23 06:21 UTC by Report Bug Copy Issue Report This use statement conflicts with another class in this namespace, `Path_Processor`. Let’s assume that you have a directory layout like this: . \|-- OtherDir \| \|-- Bar.php \| `-- Foo.php `-- SomeDir `-- Foo.php and let’s assume the following content of `Bar.php`: // Bar.php namespace OtherDir; use SomeDir\Foo; // This now conflicts the class OtherDir\Foo If both files `OtherDir/Foo.php` and `SomeDir/Foo.php` are 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.php However, as `OtherDir/Foo.php` does not necessarily have to be loaded and the error is only triggered if it is loaded before `OtherDir/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: // Bar.php namespace OtherDir; use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore. Loading history...
9			use Automattic\Jetpack\Autoloader\jpCurrent\Plugins_Handler;
			0 ignored issues – show Bug introduced 2021-01-23 06:21 UTC by Report Bug Copy Issue Report This use statement conflicts with another class in this namespace, `Plugins_Handler`. Let’s assume that you have a directory layout like this: . \|-- OtherDir \| \|-- Bar.php \| `-- Foo.php `-- SomeDir `-- Foo.php and let’s assume the following content of `Bar.php`: // Bar.php namespace OtherDir; use SomeDir\Foo; // This now conflicts the class OtherDir\Foo If both files `OtherDir/Foo.php` and `SomeDir/Foo.php` are 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.php However, as `OtherDir/Foo.php` does not necessarily have to be loaded and the error is only triggered if it is loaded before `OtherDir/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: // Bar.php namespace OtherDir; use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore. Loading history...
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			$this->installed_autoloaders = array( Test_Plugin_Factory::CURRENT => TEST_PLUGIN_DIR );
			0 ignored issues – show Documentation Bug introduced 2021-01-23 06:21 UTC by Report Bug Copy Issue Report It seems like `array(\Test_Plugin_Facto...ENT => TEST_PLUGIN_DIR)` of type `array` is incompatible with the declared type `array<integer,string>` of property `$installed_autoloaders`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
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( $dir );
			0 ignored issues – show Security Best Practice introduced 2021-01-23 06:21 UTC by Report Bug Copy Issue Report It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended. If you suppress an error, we recommend checking for the error condition explicitly: // For example instead of @mkdir($dir); // Better use if (@mkdir($dir) === false) { throw new \RuntimeException('The directory '.$dir.' could not be created.'); } Loading history...
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, $symlink_dir );
			0 ignored issues – show Security Best Practice introduced 2021-01-23 06:21 UTC by Report Bug Copy Issue Report It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended. If you suppress an error, we recommend checking for the error condition explicitly: // For example instead of @mkdir($dir); // Better use if (@mkdir($dir) === false) { throw new \RuntimeException('The directory '.$dir.' could not be created.'); } Loading history...
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

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