--- /dev/null
+<?php
+
+namespace Drupal\KernelTests\Core\File;
+
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Base class for file tests that adds some additional file specific
+ * assertions and helper functions.
+ */
+abstract class FileTestBase extends KernelTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['system'];
+
+ /**
+ * A stream wrapper scheme to register for the test.
+ *
+ * @var string
+ */
+ protected $scheme;
+
+ /**
+ * A fully-qualified stream wrapper class name to register for the test.
+ *
+ * @var string
+ */
+ protected $classname;
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ // \Drupal\KernelTests\KernelTestBase::bootKernel() sets a global override
+ // for the default scheme because core relies on it in
+ // file_default_scheme(). As we are creating the configuration here remove
+ // the global override.
+ unset($GLOBALS['config']['system.file']);
+ \Drupal::configFactory()->getEditable('system.file')->set('default_scheme', 'public')->save();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function register(ContainerBuilder $container) {
+ parent::register($container);
+
+ $container->register('stream_wrapper.private', 'Drupal\Core\StreamWrapper\PrivateStream')
+ ->addTag('stream_wrapper', ['scheme' => 'private']);
+
+ if (isset($this->scheme)) {
+ $container->register('stream_wrapper.' . $this->scheme, $this->classname)
+ ->addTag('stream_wrapper', ['scheme' => $this->scheme]);
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpFilesystem() {
+ $public_file_directory = $this->siteDirectory . '/files';
+
+ require_once 'core/includes/file.inc';
+
+ mkdir($this->siteDirectory, 0775);
+ mkdir($this->siteDirectory . '/files', 0775);
+ mkdir($this->siteDirectory . '/files/config/' . CONFIG_SYNC_DIRECTORY, 0775, TRUE);
+
+ $this->setSetting('file_public_path', $public_file_directory);
+
+ $GLOBALS['config_directories'] = [
+ CONFIG_SYNC_DIRECTORY => $this->siteDirectory . '/files/config/sync',
+ ];
+ }
+
+ /**
+ * Helper function to test the permissions of a file.
+ *
+ * @param $filepath
+ * String file path.
+ * @param $expected_mode
+ * Octal integer like 0664 or 0777.
+ * @param $message
+ * Optional message.
+ */
+ public function assertFilePermissions($filepath, $expected_mode, $message = NULL) {
+ // Clear out PHP's file stat cache to be sure we see the current value.
+ clearstatcache(TRUE, $filepath);
+
+ // Mask out all but the last three octets.
+ $actual_mode = fileperms($filepath) & 0777;
+
+ // PHP on Windows has limited support for file permissions. Usually each of
+ // "user", "group" and "other" use one octal digit (3 bits) to represent the
+ // read/write/execute bits. On Windows, chmod() ignores the "group" and
+ // "other" bits, and fileperms() returns the "user" bits in all three
+ // positions. $expected_mode is updated to reflect this.
+ if (substr(PHP_OS, 0, 3) == 'WIN') {
+ // Reset the "group" and "other" bits.
+ $expected_mode = $expected_mode & 0700;
+ // Shift the "user" bits to the "group" and "other" positions also.
+ $expected_mode = $expected_mode | $expected_mode >> 3 | $expected_mode >> 6;
+ }
+
+ if (!isset($message)) {
+ $message = t('Expected file permission to be %expected, actually were %actual.', ['%actual' => decoct($actual_mode), '%expected' => decoct($expected_mode)]);
+ }
+ $this->assertEqual($actual_mode, $expected_mode, $message);
+ }
+
+ /**
+ * Helper function to test the permissions of a directory.
+ *
+ * @param $directory
+ * String directory path.
+ * @param $expected_mode
+ * Octal integer like 0664 or 0777.
+ * @param $message
+ * Optional message.
+ */
+ public function assertDirectoryPermissions($directory, $expected_mode, $message = NULL) {
+ // Clear out PHP's file stat cache to be sure we see the current value.
+ clearstatcache(TRUE, $directory);
+
+ // Mask out all but the last three octets.
+ $actual_mode = fileperms($directory) & 0777;
+ $expected_mode = $expected_mode & 0777;
+
+ // PHP on Windows has limited support for file permissions. Usually each of
+ // "user", "group" and "other" use one octal digit (3 bits) to represent the
+ // read/write/execute bits. On Windows, chmod() ignores the "group" and
+ // "other" bits, and fileperms() returns the "user" bits in all three
+ // positions. $expected_mode is updated to reflect this.
+ if (substr(PHP_OS, 0, 3) == 'WIN') {
+ // Reset the "group" and "other" bits.
+ $expected_mode = $expected_mode & 0700;
+ // Shift the "user" bits to the "group" and "other" positions also.
+ $expected_mode = $expected_mode | $expected_mode >> 3 | $expected_mode >> 6;
+ }
+
+ if (!isset($message)) {
+ $message = t('Expected directory permission to be %expected, actually were %actual.', ['%actual' => decoct($actual_mode), '%expected' => decoct($expected_mode)]);
+ }
+ $this->assertEqual($actual_mode, $expected_mode, $message);
+ }
+
+ /**
+ * Create a directory and assert it exists.
+ *
+ * @param $path
+ * Optional string with a directory path. If none is provided, a random
+ * name in the site's files directory will be used.
+ * @return
+ * The path to the directory.
+ */
+ public function createDirectory($path = NULL) {
+ // A directory to operate on.
+ if (!isset($path)) {
+ $path = file_default_scheme() . '://' . $this->randomMachineName();
+ }
+ $this->assertTrue(drupal_mkdir($path) && is_dir($path), 'Directory was created successfully.');
+ return $path;
+ }
+
+ /**
+ * Create a file and return the URI of it.
+ *
+ * @param $filepath
+ * Optional string specifying the file path. If none is provided then a
+ * randomly named file will be created in the site's files directory.
+ * @param $contents
+ * Optional contents to save into the file. If a NULL value is provided an
+ * arbitrary string will be used.
+ * @param $scheme
+ * Optional string indicating the stream scheme to use. Drupal core includes
+ * public, private, and temporary. The public wrapper is the default.
+ * @return
+ * File URI.
+ */
+ public function createUri($filepath = NULL, $contents = NULL, $scheme = NULL) {
+ if (!isset($filepath)) {
+ // Prefix with non-latin characters to ensure that all file-related
+ // tests work with international filenames.
+ $filepath = 'Файл для тестирования ' . $this->randomMachineName();
+ }
+ if (!isset($scheme)) {
+ $scheme = file_default_scheme();
+ }
+ $filepath = $scheme . '://' . $filepath;
+
+ if (!isset($contents)) {
+ $contents = "file_put_contents() doesn't seem to appreciate empty strings so let's put in some data.";
+ }
+
+ file_put_contents($filepath, $contents);
+ $this->assertTrue(is_file($filepath), t('The test file exists on the disk.'), 'Create test file');
+ return $filepath;
+ }
+
+}