<?php

/**

 * Tests Drupal error and exception handlers.

 */

class DrupalErrorHandlerTestCase extends DrupalWebTestCase {

  public static function getInfo() {

    return array(

      'name' => 'Drupal error handlers',

      'description' => 'Performs tests on the Drupal error and exception handler.',

      'group' => 'System',

    );

  }

  function setUp() {

    parent::setUp('error_test');

  }

  /**

   * Test the error handler.

   */

  function testErrorHandler() {

    $error_notice = array(

      '%type' => 'Notice',

      '!message' => 'Undefined variable: bananas',

      '%function' => 'error_test_generate_warnings()',

      '%file' => drupal_realpath('modules/simpletest/tests/error_test.module'),

    );

    $error_warning = array(

      '%type' => 'Warning',

      '!message' => 'Division by zero',

      '%function' => 'error_test_generate_warnings()',

      '%file' => drupal_realpath('modules/simpletest/tests/error_test.module'),

    );

    $error_user_notice = array(

      '%type' => 'User warning',

      '!message' => 'Drupal is awesome',

      '%function' => 'error_test_generate_warnings()',

      '%file' => drupal_realpath('modules/simpletest/tests/error_test.module'),

    );

    // Set error reporting to collect notices.

    variable_set('error_level', ERROR_REPORTING_DISPLAY_ALL);

    $this->drupalGet('error-test/generate-warnings');

    $this->assertResponse(200, 'Received expected HTTP status code.');

    $this->assertErrorMessage($error_notice);

    $this->assertErrorMessage($error_warning);

    $this->assertErrorMessage($error_user_notice);

    // Set error reporting to not collect notices.

    variable_set('error_level', ERROR_REPORTING_DISPLAY_SOME);

    $this->drupalGet('error-test/generate-warnings');

    $this->assertResponse(200, 'Received expected HTTP status code.');

    $this->assertNoErrorMessage($error_notice);

    $this->assertErrorMessage($error_warning);

    $this->assertErrorMessage($error_user_notice);

    // Set error reporting to not show any errors.

    variable_set('error_level', ERROR_REPORTING_HIDE);

    $this->drupalGet('error-test/generate-warnings');

    $this->assertResponse(200, 'Received expected HTTP status code.');

    $this->assertNoErrorMessage($error_notice);

    $this->assertNoErrorMessage($error_warning);

    $this->assertNoErrorMessage($error_user_notice);

  }

  /**

   * Test the exception handler.

   */

  function testExceptionHandler() {

    $error_exception = array(

      '%type' => 'Exception',

      '!message' => 'Drupal is awesome',

      '%function' => 'error_test_trigger_exception()',

      '%line' => 57,

      '%file' => drupal_realpath('modules/simpletest/tests/error_test.module'),

    );

    $error_pdo_exception = array(

      '%type' => 'PDOException',

      '!message' => 'SELECT * FROM bananas_are_awesome',

      '%function' => 'error_test_trigger_pdo_exception()',

      '%line' => 65,

      '%file' => drupal_realpath('modules/simpletest/tests/error_test.module'),

    );

    $this->drupalGet('error-test/trigger-exception');

    $this->assertTrue(strpos($this->drupalGetHeader(':status'), '500 Service unavailable (with message)'), 'Received expected HTTP status line.');

    $this->assertErrorMessage($error_exception);

    $this->drupalGet('error-test/trigger-pdo-exception');

    $this->assertTrue(strpos($this->drupalGetHeader(':status'), '500 Service unavailable (with message)'), 'Received expected HTTP status line.');

    // We cannot use assertErrorMessage() since the extact error reported

    // varies from database to database. Check that the SQL string is displayed.

    $this->assertText($error_pdo_exception['%type'], format_string('Found %type in error page.', $error_pdo_exception));

    $this->assertText($error_pdo_exception['!message'], format_string('Found !message in error page.', $error_pdo_exception));

    $error_details = format_string('in %function (line ', $error_pdo_exception);

    $this->assertRaw($error_details, format_string("Found '!message' in error page.", array('!message' => $error_details)));

  }

  /**

   * Helper function: assert that the error message is found.

   */

  function assertErrorMessage(array $error) {

    $message = t('%type: !message in %function (line ', $error);

    $this->assertRaw($message, format_string('Found error message: !message.', array('!message' => $message)));

  }

  /**

   * Helper function: assert that the error message is not found.

   */

  function assertNoErrorMessage(array $error) {

    $message = t('%type: !message in %function (line ', $error);

    $this->assertNoRaw($message, format_string('Did not find error message: !message.', array('!message' => $message)));

  }

}