FileStorageReadOnlyTest.php

<?php

namespace Drupal\Tests\Component\PhpStorage;

use Drupal\Component\PhpStorage\FileStorage;
use Drupal\Component\PhpStorage\FileReadOnlyStorage;
use Drupal\Component\Utility\Random;

/**
 * @coversDefaultClass \Drupal\Component\PhpStorage\FileReadOnlyStorage
 *
 * @group Drupal
 * @group PhpStorage
 */
class FileStorageReadOnlyTest extends PhpStorageTestBase {
    
    /**
     * Standard test settings to pass to storage instances.
     *
     * @var array
     */
    protected $standardSettings;
    
    /**
     * Read only test settings to pass to storage instances.
     *
     * @var array
     */
    protected $readonlyStorage;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->standardSettings = [
            'directory' => $this->directory,
            'bin' => 'test',
        ];
        $this->readonlyStorage = [
            'directory' => $this->directory,
            // Let this read from the bin where the other instance is writing.
'bin' => 'test',
        ];
    }
    
    /**
     * Tests writing with one class and reading with another.
     */
    public function testReadOnly() {
        // Random generator.
        $random = new Random();
        $php = new FileStorage($this->standardSettings);
        $name = $random->name(8, TRUE) . '/' . $random->name(8, TRUE) . '.php';
        // Find a global that doesn't exist.
        do {
            $random = 'test' . mt_rand(10000, 100000);
        } while (isset($GLOBALS[$random]));
        // Write out a PHP file and ensure it's successfully loaded.
        $code = "<?php\n\$GLOBALS['{$random}'] = TRUE;";
        $success = $php->save($name, $code);
        $this->assertTrue($success);
        $php_read = new FileReadOnlyStorage($this->readonlyStorage);
        $php_read->load($name);
        $this->assertTrue($GLOBALS[$random]);
        // If the file was successfully loaded, it must also exist, but ensure the
        // exists() method returns that correctly.
        $this->assertTrue($php_read->exists($name));
        // Saving and deleting should always fail.
        $this->assertFalse($php_read->save($name, $code));
        $this->assertFalse($php_read->delete($name));
        unset($GLOBALS[$random]);
    }
    
    /**
     * @covers ::writeable
     */
    public function testWriteable() {
        $php_read = new FileReadOnlyStorage($this->readonlyStorage);
        $this->assertFalse($php_read->writeable());
    }
    
    /**
     * @covers ::deleteAll
     */
    public function testDeleteAll() {
        // Random generator.
        $random = new Random();
        $php = new FileStorage($this->standardSettings);
        $name = $random->name(8, TRUE) . '/' . $random->name(8, TRUE) . '.php';
        // Find a global that doesn't exist.
        do {
            $random = mt_rand(10000, 100000);
        } while (isset($GLOBALS[$random]));
        // Write our the file so we can test deleting.
        $code = "<?php\n\$GLOBALS[{$random}] = TRUE;";
        $this->assertTrue($php->save($name, $code));
        $php_read = new FileReadOnlyStorage($this->readonlyStorage);
        $this->assertFalse($php_read->deleteAll());
        // Make sure directory exists prior to removal.
        $this->assertDirectoryExists($this->directory . '/test');
    }

}