diff core/tests/Drupal/FunctionalTests/Bootstrap/UncaughtExceptionTest.php @ 17:129ea1e6d783

Update, including to Drupal core 8.6.10

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/tests/Drupal/FunctionalTests/Bootstrap/UncaughtExceptionTest.php	Thu Feb 28 13:21:36 2019 +0000
@@ -0,0 +1,401 @@
+<?php
+
+namespace Drupal\FunctionalTests\Bootstrap;
+
+use Drupal\Component\Render\FormattableMarkup;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests kernel panic when things are really messed up.
+ *
+ * @group system
+ */
+class UncaughtExceptionTest extends BrowserTestBase {
+
+  /**
+   * Last cURL response.
+   *
+   * @var string
+   */
+  protected $response = '';
+
+  /**
+   * Last cURL info.
+   *
+   * @var array
+   */
+  protected $info = [];
+
+  /**
+   * Exceptions thrown by site under test that contain this text are ignored.
+   *
+   * @var string
+   */
+  protected $expectedExceptionMessage;
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['error_service_test', 'error_test'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $settings_filename = $this->siteDirectory . '/settings.php';
+    chmod($settings_filename, 0777);
+    $settings_php = file_get_contents($settings_filename);
+    $settings_php .= "\ninclude_once 'core/tests/Drupal/FunctionalTests/Bootstrap/ErrorContainer.php';\n";
+    $settings_php .= "\ninclude_once 'core/tests/Drupal/FunctionalTests/Bootstrap/ExceptionContainer.php';\n";
+    file_put_contents($settings_filename, $settings_php);
+
+    $settings = [];
+    $settings['config']['system.logging']['error_level'] = (object) [
+      'value' => ERROR_REPORTING_DISPLAY_VERBOSE,
+      'required' => TRUE,
+    ];
+    $this->writeSettings($settings);
+  }
+
+  /**
+   * Tests uncaught exception handling when system is in a bad state.
+   */
+  public function testUncaughtException() {
+    $this->expectedExceptionMessage = 'Oh oh, bananas in the instruments.';
+    \Drupal::state()->set('error_service_test.break_bare_html_renderer', TRUE);
+
+    $this->config('system.logging')
+      ->set('error_level', ERROR_REPORTING_HIDE)
+      ->save();
+    $settings = [];
+    $settings['config']['system.logging']['error_level'] = (object) [
+      'value' => ERROR_REPORTING_HIDE,
+      'required' => TRUE,
+    ];
+    $this->writeSettings($settings);
+
+    $this->drupalGet('');
+    $this->assertResponse(500);
+    $this->assertText('The website encountered an unexpected error. Please try again later.');
+    $this->assertNoText($this->expectedExceptionMessage);
+
+    $this->config('system.logging')
+      ->set('error_level', ERROR_REPORTING_DISPLAY_ALL)
+      ->save();
+    $settings = [];
+    $settings['config']['system.logging']['error_level'] = (object) [
+      'value' => ERROR_REPORTING_DISPLAY_ALL,
+      'required' => TRUE,
+    ];
+    $this->writeSettings($settings);
+
+    $this->drupalGet('');
+    $this->assertResponse(500);
+    $this->assertText('The website encountered an unexpected error. Please try again later.');
+    $this->assertText($this->expectedExceptionMessage);
+    $this->assertErrorLogged($this->expectedExceptionMessage);
+  }
+
+  /**
+   * Tests displaying an uncaught fatal error.
+   */
+  public function testUncaughtFatalError() {
+    $fatal_error = [
+      '%type' => 'Recoverable fatal error',
+      '@message' => 'Argument 1 passed to Drupal\error_test\Controller\ErrorTestController::Drupal\error_test\Controller\{closure}() must be of the type array, string given, called in ' . \Drupal::root() . '/core/modules/system/tests/modules/error_test/src/Controller/ErrorTestController.php on line 62 and defined',
+      '%function' => 'Drupal\error_test\Controller\ErrorTestController->Drupal\error_test\Controller\{closure}()',
+    ];
+    if (version_compare(PHP_VERSION, '7.0.0-dev') >= 0) {
+      // In PHP 7, instead of a recoverable fatal error we get a TypeError.
+      $fatal_error['%type'] = 'TypeError';
+      // The error message also changes in PHP 7.
+      $fatal_error['@message'] = 'Argument 1 passed to Drupal\error_test\Controller\ErrorTestController::Drupal\error_test\Controller\{closure}() must be of the type array, string given, called in ' . \Drupal::root() . '/core/modules/system/tests/modules/error_test/src/Controller/ErrorTestController.php on line 62';
+    }
+    $this->drupalGet('error-test/generate-fatals');
+    $this->assertResponse(500, 'Received expected HTTP status code.');
+    $message = new FormattableMarkup('%type: @message in %function (line ', $fatal_error);
+    $this->assertRaw((string) $message);
+    $this->assertRaw('<pre class="backtrace">');
+    // Ensure we are escaping but not double escaping.
+    $this->assertRaw('&#039;');
+    $this->assertNoRaw('&amp;#039;');
+  }
+
+  /**
+   * Tests uncaught exception handling with custom exception handler.
+   */
+  public function testUncaughtExceptionCustomExceptionHandler() {
+    $settings_filename = $this->siteDirectory . '/settings.php';
+    chmod($settings_filename, 0777);
+    $settings_php = file_get_contents($settings_filename);
+    $settings_php .= "\n";
+    $settings_php .= "set_exception_handler(function() {\n";
+    $settings_php .= "  header('HTTP/1.1 418 I\'m a teapot');\n";
+    $settings_php .= "  print('Oh oh, flying teapots');\n";
+    $settings_php .= "});\n";
+    file_put_contents($settings_filename, $settings_php);
+
+    \Drupal::state()->set('error_service_test.break_bare_html_renderer', TRUE);
+
+    $this->drupalGet('');
+    $this->assertResponse(418);
+    $this->assertNoText('The website encountered an unexpected error. Please try again later.');
+    $this->assertNoText('Oh oh, bananas in the instruments');
+    $this->assertText('Oh oh, flying teapots');
+  }
+
+  /**
+   * Tests a missing dependency on a service.
+   */
+  public function testMissingDependency() {
+    if (version_compare(PHP_VERSION, '7.1') < 0) {
+      $this->expectedExceptionMessage = 'Argument 1 passed to Drupal\error_service_test\LonelyMonkeyClass::__construct() must be an instance of Drupal\Core\Database\Connection, non';
+    }
+    else {
+      $this->expectedExceptionMessage = 'Too few arguments to function Drupal\error_service_test\LonelyMonkeyClass::__construct(), 0 passed';
+    }
+    $this->drupalGet('broken-service-class');
+    $this->assertResponse(500);
+
+    $this->assertRaw('The website encountered an unexpected error.');
+    $this->assertRaw($this->expectedExceptionMessage);
+    $this->assertErrorLogged($this->expectedExceptionMessage);
+  }
+
+  /**
+   * Tests a missing dependency on a service with a custom error handler.
+   */
+  public function testMissingDependencyCustomErrorHandler() {
+    $settings_filename = $this->siteDirectory . '/settings.php';
+    chmod($settings_filename, 0777);
+    $settings_php = file_get_contents($settings_filename);
+    $settings_php .= "\n";
+    $settings_php .= "set_error_handler(function() {\n";
+    $settings_php .= "  header('HTTP/1.1 418 I\'m a teapot');\n";
+    $settings_php .= "  print('Oh oh, flying teapots');\n";
+    $settings_php .= "  exit();\n";
+    $settings_php .= "});\n";
+    $settings_php .= "\$settings['teapots'] = TRUE;\n";
+    file_put_contents($settings_filename, $settings_php);
+
+    $this->drupalGet('broken-service-class');
+    $this->assertResponse(418);
+    $this->assertSame('Oh oh, flying teapots', $this->response);
+  }
+
+  /**
+   * Tests a container which has an error.
+   */
+  public function testErrorContainer() {
+    $settings = [];
+    $settings['settings']['container_base_class'] = (object) [
+      'value' => '\Drupal\FunctionalTests\Bootstrap\ErrorContainer',
+      'required' => TRUE,
+    ];
+    $this->writeSettings($settings);
+    \Drupal::service('kernel')->invalidateContainer();
+
+    $this->expectedExceptionMessage = 'Argument 1 passed to Drupal\FunctionalTests\Bootstrap\ErrorContainer::Drupal\FunctionalTests\Bootstrap\{closur';
+    $this->drupalGet('');
+    $this->assertResponse(500);
+
+    $this->assertRaw($this->expectedExceptionMessage);
+    $this->assertErrorLogged($this->expectedExceptionMessage);
+  }
+
+  /**
+   * Tests a container which has an exception really early.
+   */
+  public function testExceptionContainer() {
+    $settings = [];
+    $settings['settings']['container_base_class'] = (object) [
+      'value' => '\Drupal\FunctionalTests\Bootstrap\ExceptionContainer',
+      'required' => TRUE,
+    ];
+    $this->writeSettings($settings);
+    \Drupal::service('kernel')->invalidateContainer();
+
+    $this->expectedExceptionMessage = 'Thrown exception during Container::get';
+    $this->drupalGet('');
+    $this->assertResponse(500);
+
+    $this->assertRaw('The website encountered an unexpected error');
+    $this->assertRaw($this->expectedExceptionMessage);
+    $this->assertErrorLogged($this->expectedExceptionMessage);
+  }
+
+  /**
+   * Tests the case when the database connection is gone.
+   */
+  public function testLostDatabaseConnection() {
+    $incorrect_username = $this->randomMachineName(16);
+    switch ($this->container->get('database')->driver()) {
+      case 'pgsql':
+      case 'mysql':
+        $this->expectedExceptionMessage = $incorrect_username;
+        break;
+      default:
+        // We can not carry out this test.
+        $this->pass('Unable to run \Drupal\system\Tests\System\UncaughtExceptionTest::testLostDatabaseConnection for this database type.');
+        return;
+    }
+
+    // We simulate a broken database connection by rewrite settings.php to no
+    // longer have the proper data.
+    $settings['databases']['default']['default']['username'] = (object) [
+      'value' => $incorrect_username,
+      'required' => TRUE,
+    ];
+    $settings['databases']['default']['default']['password'] = (object) [
+      'value' => $this->randomMachineName(16),
+      'required' => TRUE,
+    ];
+
+    $this->writeSettings($settings);
+
+    $this->drupalGet('');
+    $this->assertResponse(500);
+    $this->assertRaw('DatabaseAccessDeniedException');
+    $this->assertErrorLogged($this->expectedExceptionMessage);
+  }
+
+  /**
+   * Tests fallback to PHP error log when an exception is thrown while logging.
+   */
+  public function testLoggerException() {
+    // Ensure the test error log is empty before these tests.
+    $this->assertNoErrorsLogged();
+
+    $this->expectedExceptionMessage = 'Deforestation';
+    \Drupal::state()->set('error_service_test.break_logger', TRUE);
+
+    $this->drupalGet('');
+    $this->assertResponse(500);
+    $this->assertText('The website encountered an unexpected error. Please try again later.');
+    $this->assertRaw($this->expectedExceptionMessage);
+
+    // Find fatal error logged to the error.log
+    $errors = file(\Drupal::root() . '/' . $this->siteDirectory . '/error.log');
+    $this->assertIdentical(count($errors), 8, 'The error + the error that the logging service is broken has been written to the error log.');
+    $this->assertTrue(strpos($errors[0], 'Failed to log error') !== FALSE, 'The error handling logs when an error could not be logged to the logger.');
+
+    $expected_path = \Drupal::root() . '/core/modules/system/tests/modules/error_service_test/src/MonkeysInTheControlRoom.php';
+    $expected_line = 59;
+    $expected_entry = "Failed to log error: Exception: Deforestation in Drupal\\error_service_test\\MonkeysInTheControlRoom->handle() (line ${expected_line} of ${expected_path})";
+    $this->assert(strpos($errors[0], $expected_entry) !== FALSE, 'Original error logged to the PHP error log when an exception is thrown by a logger');
+
+    // The exception is expected. Do not interpret it as a test failure. Not
+    // using File API; a potential error must trigger a PHP warning.
+    unlink(\Drupal::root() . '/' . $this->siteDirectory . '/error.log');
+  }
+
+  /**
+   * Asserts that a specific error has been logged to the PHP error log.
+   *
+   * @param string $error_message
+   *   The expected error message.
+   *
+   * @see \Drupal\simpletest\TestBase::prepareEnvironment()
+   * @see \Drupal\Core\DrupalKernel::bootConfiguration()
+   */
+  protected function assertErrorLogged($error_message) {
+    $error_log_filename = DRUPAL_ROOT . '/' . $this->siteDirectory . '/error.log';
+    if (!file_exists($error_log_filename)) {
+      $this->fail('No error logged yet.');
+    }
+
+    $content = file_get_contents($error_log_filename);
+    $rows = explode(PHP_EOL, $content);
+
+    // We iterate over the rows in order to be able to remove the logged error
+    // afterwards.
+    $found = FALSE;
+    foreach ($rows as $row_index => $row) {
+      if (strpos($content, $error_message) !== FALSE) {
+        $found = TRUE;
+        unset($rows[$row_index]);
+      }
+    }
+
+    file_put_contents($error_log_filename, implode("\n", $rows));
+
+    $this->assertTrue($found, sprintf('The %s error message was logged.', $error_message));
+  }
+
+  /**
+   * Asserts that no errors have been logged to the PHP error.log thus far.
+   *
+   * @see \Drupal\simpletest\TestBase::prepareEnvironment()
+   * @see \Drupal\Core\DrupalKernel::bootConfiguration()
+   */
+  protected function assertNoErrorsLogged() {
+    // Since PHP only creates the error.log file when an actual error is
+    // triggered, it is sufficient to check whether the file exists.
+    $this->assertFalse(file_exists(DRUPAL_ROOT . '/' . $this->siteDirectory . '/error.log'), 'PHP error.log is empty.');
+  }
+
+  /**
+   * Retrieves a Drupal path or an absolute path.
+   *
+   * Executes a cURL request for processing errors and exceptions.
+   *
+   * @param string|\Drupal\Core\Url $path
+   *   Request path.
+   * @param array $extra_options
+   *   (optional) Curl options to pass to curl_setopt()
+   * @param array $headers
+   *   (optional) Not used.
+   */
+  protected function drupalGet($path, array $extra_options = [], array $headers = []) {
+    $url = $this->buildUrl($path, ['absolute' => TRUE]);
+
+    $ch = curl_init();
+    curl_setopt($ch, CURLOPT_URL, $url);
+    curl_setopt($ch, CURLOPT_HEADER, FALSE);
+    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+    curl_setopt($ch, CURLOPT_USERAGENT, drupal_generate_test_ua($this->databasePrefix));
+    $this->response = curl_exec($ch);
+    $this->info = curl_getinfo($ch);
+    curl_close($ch);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function assertResponse($code) {
+    $this->assertSame($code, $this->info['http_code']);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function assertText($text) {
+    $this->assertContains($text, $this->response);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function assertNoText($text) {
+    $this->assertNotContains($text, $this->response);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function assertRaw($text) {
+    $this->assertText($text);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function assertNoRaw($text) {
+    $this->assertNoText($text);
+  }
+
+}