abstract class UpgradePathTestCase in Drupal 7

Perform end-to-end tests of the upgrade path.

Hierarchy

class \DrupalTestCase
- class \DrupalWebTestCase
  - class \UpgradePathTestCase

Expanded class hierarchy of UpgradePathTestCase

File

modules/simpletest/tests/upgrade/upgrade.test, line 6

View source

abstract class UpgradePathTestCase extends DrupalWebTestCase {

  /**
   * The file path(s) to the dumped database(s) to load into the child site.
   *
   * @var array
   */
  var $databaseDumpFiles = array();

  /**
   * Flag that indicates whether the child site has been upgraded.
   */
  var $upgradedSite = FALSE;

  /**
   * Array of errors triggered during the upgrade process.
   */
  var $upgradeErrors = array();

  /**
   * Array of modules loaded when the test starts.
   */
  var $loadedModules = array();

  /**
   * Flag to indicate whether zlib is installed or not.
   */
  var $zlibInstalled = TRUE;

  /**
   * Flag to indicate whether there are pending updates or not.
   */
  var $pendingUpdates = TRUE;

  /**
   * Constructs an UpgradePathTestCase object.
   *
   * @param $test_id
   *   (optional) The ID of the test. Tests with the same id are reported
   *   together.
   */
  function __construct($test_id = NULL) {
    parent::__construct($test_id);
    $this->zlibInstalled = function_exists('gzopen');
  }

  /**
   * Prepares the appropriate session for the release of Drupal being upgraded.
   */
  protected function prepareD7Session() {

    // Generate and set a D6-compatible session cookie.
    $this
      ->curlInitialize();
    $sid = drupal_hash_base64(uniqid(mt_rand(), TRUE) . drupal_random_bytes(55));
    $session_name = update_get_d6_session_name();
    curl_setopt($this->curlHandle, CURLOPT_COOKIE, rawurlencode($session_name) . '=' . rawurlencode($sid));

    // Force our way into the session of the child site.
    drupal_save_session(TRUE);

    // A session cannot be written without the ssid column which is missing on
    // Drupal 6 sites.
    db_add_field('sessions', 'ssid', array(
      'description' => "Secure session ID. The value is generated by Drupal's session handlers.",
      'type' => 'varchar',
      'length' => 128,
      'not null' => TRUE,
      'default' => '',
    ));
    _drupal_session_write($sid, '');

    // Remove the temporarily added ssid column.
    db_drop_field('sessions', 'ssid');
    drupal_save_session(FALSE);
  }

  /**
   * Overrides DrupalWebTestCase::setUp() for upgrade testing.
   *
   * @see DrupalWebTestCase::prepareDatabasePrefix()
   * @see DrupalWebTestCase::changeDatabasePrefix()
   * @see DrupalWebTestCase::prepareEnvironment()
   */
  protected function setUp() {

    // We are going to set a missing zlib requirement property for usage
    // during the performUpgrade() and tearDown() methods. Also set that the
    // tests failed.
    if (!$this->zlibInstalled) {
      parent::setUp();
      return;
    }
    global $user, $language, $conf;

    // Load the Update API.
    require_once DRUPAL_ROOT . '/includes/update.inc';

    // Reset flags.
    $this->upgradedSite = FALSE;
    $this->upgradeErrors = array();
    $this->loadedModules = module_list();

    // Create the database prefix for this test.
    $this
      ->prepareDatabasePrefix();

    // Prepare the environment for running tests.
    $this
      ->prepareEnvironment();
    if (!$this->setupEnvironment) {
      return FALSE;
    }

    // Reset all statics and variables to perform tests in a clean environment.
    $conf = array();
    drupal_static_reset();

    // Change the database prefix.
    // All static variables need to be reset before the database prefix is
    // changed, since DrupalCacheArray implementations attempt to
    // write back to persistent caches when they are destructed.
    $this
      ->changeDatabasePrefix();
    if (!$this->setupDatabasePrefix) {
      return FALSE;
    }

    // Unregister the registry.
    // This is required to make sure that the database layer works properly.
    spl_autoload_unregister('drupal_autoload_class');
    spl_autoload_unregister('drupal_autoload_interface');

    // Load the database from the portable PHP dump.
    // The files may be gzipped.
    foreach ($this->databaseDumpFiles as $file) {
      if (substr($file, -3) == '.gz') {
        $file = "compress.zlib://{$file}";
      }
      require $file;
    }

    // Set path variables.
    $this
      ->variable_set('file_public_path', $this->public_files_directory);
    $this
      ->variable_set('file_private_path', $this->private_files_directory);
    $this
      ->variable_set('file_temporary_path', $this->temp_files_directory);
    $this
      ->pass('Finished loading the dump.');

    // Ensure that the session is not written to the new environment and replace
    // the global $user session with uid 1 from the new test site.
    drupal_save_session(FALSE);

    // Login as uid 1.
    $user = db_query('SELECT * FROM {users} WHERE uid = :uid', array(
      ':uid' => 1,
    ))
      ->fetchObject();

    // Generate and set a D6-compatible session cookie.
    $this
      ->prepareD7Session();

    // Restore necessary variables.
    $this
      ->variable_set('clean_url', $this->originalCleanUrl);
    $this
      ->variable_set('site_mail', 'simpletest@example.com');
    drupal_set_time_limit($this->timeLimit);
    $this->setup = TRUE;
  }

  /**
   * Specialized variable_set() that works even if the child site is not upgraded.
   *
   * @param $name
   *   The name of the variable to set.
   * @param $value
   *   The value to set. This can be any PHP data type; these functions take care
   *   of serialization as necessary.
   */
  protected function variable_set($name, $value) {
    db_delete('variable')
      ->condition('name', $name)
      ->execute();
    db_insert('variable')
      ->fields(array(
      'name' => $name,
      'value' => serialize($value),
    ))
      ->execute();
    try {
      cache_clear_all('variables', 'cache');
      cache_clear_all('variables', 'cache_bootstrap');
    } catch (Exception $e) {
    }
  }

  /**
   * Specialized refreshVariables().
   */
  protected function refreshVariables() {

    // No operation if the child has not been upgraded yet.
    if (!$this->upgradedSite) {
      return parent::refreshVariables();
    }
  }

  /**
   * Perform the upgrade.
   *
   * @param $register_errors
   *   Register the errors during the upgrade process as failures.
   * @return
   *   TRUE if the upgrade succeeded, FALSE otherwise.
   */
  protected function performUpgrade($register_errors = TRUE) {
    if (!$this->zlibInstalled) {
      $this
        ->fail(t('Missing zlib requirement for upgrade tests.'));
      return FALSE;
    }
    $update_url = $GLOBALS['base_url'] . '/update.php';

    // Load the first update screen.
    $this
      ->drupalGet($update_url, array(
      'external' => TRUE,
    ));
    if (!$this
      ->assertResponse(200)) {
      return FALSE;
    }

    // Continue.
    $this
      ->drupalPost(NULL, array(), t('Continue'));
    if (!$this
      ->assertResponse(200)) {
      return FALSE;
    }

    // The test should pass if there are no pending updates.
    $content = $this
      ->drupalGetContent();
    if (strpos($content, t('No pending updates.')) !== FALSE) {
      $this
        ->pass(t('No pending updates and therefore no upgrade process to test.'));
      $this->pendingUpdates = FALSE;
      return TRUE;
    }

    // Go!
    $this
      ->drupalPost(NULL, array(), t('Apply pending updates'));
    if (!$this
      ->assertResponse(200)) {
      return FALSE;
    }

    // Check for errors during the update process.
    foreach ($this
      ->xpath('//li[@class=:class]', array(
      ':class' => 'failure',
    )) as $element) {
      $message = strip_tags($element
        ->asXML());
      $this->upgradeErrors[] = $message;
      if ($register_errors) {
        $this
          ->fail($message);
      }
    }
    if (!empty($this->upgradeErrors)) {

      // Upgrade failed, the installation might be in an inconsistent state,
      // don't process.
      return FALSE;
    }

    // Check if there still are pending updates.
    $this
      ->drupalGet($update_url, array(
      'external' => TRUE,
    ));
    $this
      ->drupalPost(NULL, array(), t('Continue'));
    if (!$this
      ->assertText(t('No pending updates.'), 'No pending updates at the end of the update process.')) {
      return FALSE;
    }

    // Upgrade succeed, rebuild the environment so that we can call the API
    // of the child site directly from this request.
    $this->upgradedSite = TRUE;

    // Reload module list. For modules that are enabled in the test database,
    // but not on the test client, we need to load the code here.
    $new_modules = array_diff(module_list(TRUE), $this->loadedModules);
    foreach ($new_modules as $module) {
      drupal_load('module', $module);
    }

    // Reload hook implementations
    module_implements('', FALSE, TRUE);

    // Rebuild caches.
    drupal_static_reset();
    drupal_flush_all_caches();

    // Reload global $conf array and permissions.
    $this
      ->refreshVariables();
    $this
      ->checkPermissions(array(), TRUE);
    return TRUE;
  }

  /**
   * Force uninstall all modules from a test database, except those listed.
   *
   * @param $modules
   *   The list of modules to keep installed. Required core modules will
   *   always be kept.
   */
  protected function uninstallModulesExcept(array $modules) {
    $required_modules = array(
      'block',
      'dblog',
      'filter',
      'node',
      'system',
      'update',
      'user',
    );
    $modules = array_merge($required_modules, $modules);
    db_delete('system')
      ->condition('type', 'module')
      ->condition('name', $modules, 'NOT IN')
      ->execute();
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DrupalTestCase::$assertions	protected	property	Assertions thrown in that test case.
DrupalTestCase::$databasePrefix	protected	property	The database prefix of this test run.
DrupalTestCase::$originalFileDirectory	protected	property	The original file directory, before it was changed for testing purposes.
DrupalTestCase::$results	public	property	Current results of this test case.
DrupalTestCase::$setup	protected	property	Flag to indicate whether the test has been set up.
DrupalTestCase::$setupDatabasePrefix	protected	property
DrupalTestCase::$setupEnvironment	protected	property
DrupalTestCase::$skipClasses	protected	property	This class is skipped when looking for the source of an assertion.
DrupalTestCase::$testId	protected	property	The test run ID.
DrupalTestCase::$timeLimit	protected	property	Time limit for the test.
DrupalTestCase::$useSetupInstallationCache	public	property	Whether to cache the installation part of the setUp() method.
DrupalTestCase::$useSetupModulesCache	public	property	Whether to cache the modules installation part of the setUp() method.
DrupalTestCase::$verboseDirectoryUrl	protected	property	URL to the verbose output file directory.
DrupalTestCase::assert	protected	function	Internal helper: stores the assert.
DrupalTestCase::assertEqual	protected	function	Check to see if two values are equal.
DrupalTestCase::assertFalse	protected	function	Check to see if a value is false (an empty string, 0, NULL, or FALSE).
DrupalTestCase::assertIdentical	protected	function	Check to see if two values are identical.
DrupalTestCase::assertNotEqual	protected	function	Check to see if two values are not equal.
DrupalTestCase::assertNotIdentical	protected	function	Check to see if two values are not identical.
DrupalTestCase::assertNotNull	protected	function	Check to see if a value is not NULL.
DrupalTestCase::assertNull	protected	function	Check to see if a value is NULL.
DrupalTestCase::assertTrue	protected	function	Check to see if a value is not false (not an empty string, 0, NULL, or FALSE).
DrupalTestCase::deleteAssert	public static	function	Delete an assertion record by message ID.
DrupalTestCase::error	protected	function	Fire an error assertion.	1
DrupalTestCase::errorHandler	public	function	Handle errors during test runs.	1
DrupalTestCase::exceptionHandler	protected	function	Handle exceptions.
DrupalTestCase::fail	protected	function	Fire an assertion that is always negative.
DrupalTestCase::generatePermutations	public static	function	Converts a list of possible parameters into a stack of permutations.
DrupalTestCase::getAssertionCall	protected	function	Cycles through backtrace until the first non-assertion method is found.
DrupalTestCase::getDatabaseConnection	public static	function	Returns the database connection to the site running Simpletest.
DrupalTestCase::insertAssert	public static	function	Store an assertion from outside the testing context.
DrupalTestCase::pass	protected	function	Fire an assertion that is always positive.
DrupalTestCase::randomName	public static	function	Generates a random string containing letters and numbers.
DrupalTestCase::randomString	public static	function	Generates a random string of ASCII characters of codes 32 to 126.
DrupalTestCase::run	public	function	Run all tests in this class.
DrupalTestCase::verbose	protected	function	Logs a verbose message in a text file.
DrupalWebTestCase::$additionalCurlOptions	protected	property	Additional cURL options.
DrupalWebTestCase::$content	protected	property	The content of the page currently loaded in the internal browser.
DrupalWebTestCase::$cookieFile	protected	property	The current cookie file used by cURL.
DrupalWebTestCase::$cookies	protected	property	The cookies of the page currently loaded in the internal browser.
DrupalWebTestCase::$curlHandle	protected	property	The handle of the current cURL connection.
DrupalWebTestCase::$drupalSettings	protected	property	The value of the Drupal.settings JavaScript variable for the page currently loaded in the internal browser.
DrupalWebTestCase::$elements	protected	property	The parsed version of the page.
DrupalWebTestCase::$generatedTestFiles	protected	property	Whether the files were copied to the test files directory.
DrupalWebTestCase::$headers	protected	property	The headers of the page currently loaded in the internal browser.
DrupalWebTestCase::$httpauth_credentials	protected	property	HTTP authentication credentials (<username>:<password>).
DrupalWebTestCase::$httpauth_method	protected	property	HTTP authentication method
DrupalWebTestCase::$loggedInUser	protected	property	The current user logged in using the internal browser.
DrupalWebTestCase::$originalShutdownCallbacks	protected	property	The original shutdown handlers array, before it was cleaned for testing purposes.
DrupalWebTestCase::$originalUser	protected	property	The original user, before it was changed to a clean uid = 1 for testing purposes.
DrupalWebTestCase::$plainTextContent	protected	property	The content of the page currently loaded in the internal browser (plain text version).
DrupalWebTestCase::$profile	protected	property	The profile to install as a basis for testing.	20
DrupalWebTestCase::$redirect_count	protected	property	The number of redirects followed during the handling of a request.
DrupalWebTestCase::$session_id	protected	property	The current session ID, if available.
DrupalWebTestCase::$session_name	protected	property	The current session name, if available.
DrupalWebTestCase::$url	protected	property	The URL currently loaded in the internal browser.
DrupalWebTestCase::assertField	protected	function	Asserts that a field exists with the given name or ID.
DrupalWebTestCase::assertFieldById	protected	function	Asserts that a field exists in the current page with the given ID and value.
DrupalWebTestCase::assertFieldByName	protected	function	Asserts that a field exists in the current page with the given name and value.
DrupalWebTestCase::assertFieldByXPath	protected	function	Asserts that a field exists in the current page by the given XPath.
DrupalWebTestCase::assertFieldChecked	protected	function	Asserts that a checkbox field in the current page is checked.
DrupalWebTestCase::assertLink	protected	function	Pass if a link with the specified label is found, and optional with the specified index.
DrupalWebTestCase::assertLinkByHref	protected	function	Pass if a link containing a given href (part) is found.
DrupalWebTestCase::assertMail	protected	function	Asserts that the most recently sent e-mail message has the given value.
DrupalWebTestCase::assertMailPattern	protected	function	Asserts that the most recently sent e-mail message has the pattern in it.
DrupalWebTestCase::assertMailString	protected	function	Asserts that the most recently sent e-mail message has the string in it.
DrupalWebTestCase::assertNoDuplicateIds	protected	function	Asserts that each HTML ID is used for just a single element.
DrupalWebTestCase::assertNoField	protected	function	Asserts that a field does not exist with the given name or ID.
DrupalWebTestCase::assertNoFieldById	protected	function	Asserts that a field does not exist with the given ID and value.
DrupalWebTestCase::assertNoFieldByName	protected	function	Asserts that a field does not exist with the given name and value.
DrupalWebTestCase::assertNoFieldByXPath	protected	function	Asserts that a field doesn't exist or its value doesn't match, by XPath.
DrupalWebTestCase::assertNoFieldChecked	protected	function	Asserts that a checkbox field in the current page is not checked.
DrupalWebTestCase::assertNoLink	protected	function	Pass if a link with the specified label is not found.
DrupalWebTestCase::assertNoLinkByHref	protected	function	Pass if a link containing a given href (part) is not found.
DrupalWebTestCase::assertNoOptionSelected	protected	function	Asserts that a select option in the current page is not checked.
DrupalWebTestCase::assertNoPattern	protected	function	Will trigger a pass if the perl regex pattern is not present in raw content.
DrupalWebTestCase::assertNoRaw	protected	function	Pass if the raw text is NOT found on the loaded page, fail otherwise. Raw text refers to the raw HTML that the page generated.
DrupalWebTestCase::assertNoResponse	protected	function	Asserts the page did not return the specified response code.
DrupalWebTestCase::assertNoText	protected	function	Pass if the text is NOT found on the text version of the page. The text version is the equivalent of what a user would see when viewing through a web browser. In other words the HTML has been filtered out of the contents.
DrupalWebTestCase::assertNoTitle	protected	function	Pass if the page title is not the given string.
DrupalWebTestCase::assertNoUniqueText	protected	function	Pass if the text is found MORE THAN ONCE on the text version of the page.
DrupalWebTestCase::assertOptionSelected	protected	function	Asserts that a select option in the current page is checked.
DrupalWebTestCase::assertPattern	protected	function	Will trigger a pass if the Perl regex pattern is found in the raw content.
DrupalWebTestCase::assertRaw	protected	function	Pass if the raw text IS found on the loaded page, fail otherwise. Raw text refers to the raw HTML that the page generated.
DrupalWebTestCase::assertResponse	protected	function	Asserts the page responds with the specified response code.
DrupalWebTestCase::assertText	protected	function	Pass if the text IS found on the text version of the page. The text version is the equivalent of what a user would see when viewing through a web browser. In other words the HTML has been filtered out of the contents.
DrupalWebTestCase::assertTextHelper	protected	function	Helper for assertText and assertNoText.
DrupalWebTestCase::assertThemeOutput	protected	function	Asserts themed output.
DrupalWebTestCase::assertTitle	protected	function	Pass if the page title is the given string.
DrupalWebTestCase::assertUniqueText	protected	function	Pass if the text is found ONLY ONCE on the text version of the page.
DrupalWebTestCase::assertUniqueTextHelper	protected	function	Helper for assertUniqueText and assertNoUniqueText.
DrupalWebTestCase::assertUrl	protected	function	Pass if the internal browser's URL matches the given path.
DrupalWebTestCase::buildXPathQuery	protected	function	Builds an XPath query.
DrupalWebTestCase::changeDatabasePrefix	protected	function	Changes the database connection to the prefixed one.
DrupalWebTestCase::checkForMetaRefresh	protected	function	Check for meta refresh tag and if found call drupalGet() recursively. This function looks for the http-equiv attribute to be set to "Refresh" and is case-sensitive.
DrupalWebTestCase::checkPermissions	protected	function	Check to make sure that the array of permissions are valid.
DrupalWebTestCase::clickLink	protected	function	Follows a link by name.
DrupalWebTestCase::constructFieldXpath	protected	function	Helper function: construct an XPath for the given set of attributes and value.
DrupalWebTestCase::copySetupCache	protected	function	Copy the setup cache from/to another table and files directory.
DrupalWebTestCase::cronRun	protected	function	Runs cron in the Drupal installed by Simpletest.
DrupalWebTestCase::curlClose	protected	function	Close the cURL handler and unset the handler.
DrupalWebTestCase::curlExec	protected	function	Initializes and executes a cURL request.
DrupalWebTestCase::curlHeaderCallback	protected	function	Reads headers and registers errors received from the tested site.
DrupalWebTestCase::curlInitialize	protected	function	Initializes the cURL connection.
DrupalWebTestCase::drupalCompareFiles	protected	function	Compare two files based on size and file name.
DrupalWebTestCase::drupalCreateContentType	protected	function	Creates a custom content type based on default settings.
DrupalWebTestCase::drupalCreateNode	protected	function	Creates a node based on default settings.
DrupalWebTestCase::drupalCreateRole	protected	function	Creates a role with specified permissions.
DrupalWebTestCase::drupalCreateUser	protected	function	Create a user with a given set of permissions.
DrupalWebTestCase::drupalGet	protected	function	Retrieves a Drupal path or an absolute path.
DrupalWebTestCase::drupalGetAJAX	protected	function	Retrieve a Drupal path or an absolute path and JSON decode the result.
DrupalWebTestCase::drupalGetContent	protected	function	Gets the current raw HTML of requested page.
DrupalWebTestCase::drupalGetHeader	protected	function	Gets the value of an HTTP response header. If multiple requests were required to retrieve the page, only the headers from the last request will be checked by default. However, if TRUE is passed as the second argument, all requests will be processed…
DrupalWebTestCase::drupalGetHeaders	protected	function	Gets the HTTP response headers of the requested page. Normally we are only interested in the headers returned by the last request. However, if a page is redirected or HTTP authentication is in use, multiple requests will be required to retrieve the…
DrupalWebTestCase::drupalGetMails	protected	function	Gets an array containing all e-mails sent during this test case.
DrupalWebTestCase::drupalGetNodeByTitle		function	Get a node from the database based on its title.
DrupalWebTestCase::drupalGetSettings	protected	function	Gets the value of the Drupal.settings JavaScript variable for the currently loaded page.
DrupalWebTestCase::drupalGetTestFiles	protected	function	Get a list files that can be used in tests.
DrupalWebTestCase::drupalGetToken	protected	function	Generate a token for the currently logged in user.
DrupalWebTestCase::drupalHead	protected	function	Retrieves only the headers for a Drupal path or an absolute path.
DrupalWebTestCase::drupalLogin	protected	function	Log in a user with the internal browser.
DrupalWebTestCase::drupalLogout	protected	function
DrupalWebTestCase::drupalPost	protected	function	Execute a POST request on a Drupal page. It will be done as usual POST request with SimpleBrowser.
DrupalWebTestCase::drupalPostAJAX	protected	function	Execute an Ajax submission.
DrupalWebTestCase::drupalSetContent	protected	function	Sets the raw HTML content. This can be useful when a page has been fetched outside of the internal browser and assertions need to be made on the returned page.
DrupalWebTestCase::drupalSetSettings	protected	function	Sets the value of the Drupal.settings JavaScript variable for the currently loaded page.
DrupalWebTestCase::getAbsoluteUrl	protected	function	Takes a path and returns an absolute path.
DrupalWebTestCase::getAllOptions	protected	function	Get all option elements, including nested options, in a select.
DrupalWebTestCase::getSelectedItem	protected	function	Get the selected value from a select field.
DrupalWebTestCase::getSetupCacheKey	protected	function	Returns the cache key used for the setup caching.
DrupalWebTestCase::getUrl	protected	function	Get the current URL from the cURL handler.
DrupalWebTestCase::handleForm	protected	function	Handle form input related to drupalPost(). Ensure that the specified fields exist and attempt to create POST data in the correct manner for the particular field type.
DrupalWebTestCase::loadSetupCache	protected	function	Copies the cached tables and files for a cached installation setup.
DrupalWebTestCase::parse	protected	function	Parse content returned from curlExec using DOM and SimpleXML.
DrupalWebTestCase::preloadRegistry	protected	function	Preload the registry from the testing site.
DrupalWebTestCase::prepareDatabasePrefix	protected	function	Generates a database prefix for running tests.
DrupalWebTestCase::prepareEnvironment	protected	function	Prepares the current environment for running the test.
DrupalWebTestCase::recursiveDirectoryCopy	protected	function	Recursively copy one directory to another.
DrupalWebTestCase::resetAll	protected	function	Reset all data structures after having enabled new modules.
DrupalWebTestCase::storeSetupCache	protected	function	Store the installation setup to a cache.
DrupalWebTestCase::tearDown	protected	function	Delete created files and temporary files directory, delete the tables created by setUp(), and reset the database prefix.	6
DrupalWebTestCase::verboseEmail	protected	function	Outputs to verbose the most recent $count emails sent.
DrupalWebTestCase::xpath	protected	function	Perform an xpath search on the contents of the internal browser. The search is relative to the root element (HTML tag normally) of the page.
UpgradePathTestCase::$databaseDumpFiles		property	The file path(s) to the dumped database(s) to load into the child site.
UpgradePathTestCase::$loadedModules		property	Array of modules loaded when the test starts.
UpgradePathTestCase::$pendingUpdates		property	Flag to indicate whether there are pending updates or not.
UpgradePathTestCase::$upgradedSite		property	Flag that indicates whether the child site has been upgraded.
UpgradePathTestCase::$upgradeErrors		property	Array of errors triggered during the upgrade process.
UpgradePathTestCase::$zlibInstalled		property	Flag to indicate whether zlib is installed or not.
UpgradePathTestCase::performUpgrade	protected	function	Perform the upgrade.
UpgradePathTestCase::prepareD7Session	protected	function	Prepares the appropriate session for the release of Drupal being upgraded.	1
UpgradePathTestCase::refreshVariables	protected	function	Specialized refreshVariables(). Overrides DrupalWebTestCase::refreshVariables
UpgradePathTestCase::setUp	protected	function	Overrides DrupalWebTestCase::setUp() for upgrade testing. Overrides DrupalWebTestCase::setUp	25
UpgradePathTestCase::uninstallModulesExcept	protected	function	Force uninstall all modules from a test database, except those listed.
UpgradePathTestCase::variable_set	protected	function	Specialized variable_set() that works even if the child site is not upgraded.
UpgradePathTestCase::__construct		function	Constructs an UpgradePathTestCase object. Overrides DrupalWebTestCase::__construct

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abstract class UpgradePathTestCase in Drupal 7

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