class DatabaseTransactionTestCase in Drupal 7

Test transaction support, particularly nesting.

We test nesting by having two transaction layers, an outer and inner. The outer layer encapsulates the inner layer. Our transaction nesting abstraction should allow the outer layer function to call any function it wants, especially the inner layer that starts its own transaction, and be confident that, when the function it calls returns, its own transaction is still "alive."

Call structure: transactionOuterLayer() Start transaction transactionInnerLayer() Start transaction (does nothing in database) [Maybe decide to roll back] Do more stuff Should still be in transaction A

Hierarchy

class \DrupalTestCase
- class \DrupalWebTestCase
  - class \DatabaseTestCase
    class \DatabaseTransactionTestCase

Expanded class hierarchy of DatabaseTransactionTestCase

File

modules/simpletest/tests/database_test.test, line 3488

View source

class DatabaseTransactionTestCase extends DatabaseTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Transaction tests',
      'description' => 'Test the transaction abstraction system.',
      'group' => 'Database',
    );
  }

  /**
   * Helper method for transaction unit test.
   *
   * This "outer layer" transaction starts and then encapsulates the
   * "inner layer" transaction. This nesting is used to evaluate whether the
   * database transaction API properly supports nesting. By "properly supports,"
   * we mean the outer transaction continues to exist regardless of what
   * functions are called and whether those functions start their own
   * transactions.
   *
   * In contrast, a typical database would commit the outer transaction, start
   * a new transaction for the inner layer, commit the inner layer transaction,
   * and then be confused when the outer layer transaction tries to commit its
   * transaction (which was already committed when the inner transaction
   * started).
   *
   * @param $suffix
   *   Suffix to add to field values to differentiate tests.
   * @param $rollback
   *   Whether or not to try rolling back the transaction when we're done.
   * @param $ddl_statement
   *   Whether to execute a DDL statement during the inner transaction.
   */
  protected function transactionOuterLayer($suffix, $rollback = FALSE, $ddl_statement = FALSE) {
    $connection = Database::getConnection();
    $depth = $connection
      ->transactionDepth();
    $txn = db_transaction();

    // Insert a single row into the testing table.
    db_insert('test')
      ->fields(array(
      'name' => 'David' . $suffix,
      'age' => '24',
    ))
      ->execute();
    $this
      ->assertTrue($connection
      ->inTransaction(), 'In transaction before calling nested transaction.');

    // We're already in a transaction, but we call ->transactionInnerLayer
    // to nest another transaction inside the current one.
    $this
      ->transactionInnerLayer($suffix, $rollback, $ddl_statement);
    $this
      ->assertTrue($connection
      ->inTransaction(), 'In transaction after calling nested transaction.');
    if ($rollback) {

      // Roll back the transaction, if requested.
      // This rollback should propagate to the last savepoint.
      $txn
        ->rollback();
      $this
        ->assertTrue($connection
        ->transactionDepth() == $depth, 'Transaction has rolled back to the last savepoint after calling rollback().');
    }
  }

  /**
   * Helper method for transaction unit tests. This "inner layer" transaction
   * is either used alone or nested inside of the "outer layer" transaction.
   *
   * @param $suffix
   *   Suffix to add to field values to differentiate tests.
   * @param $rollback
   *   Whether or not to try rolling back the transaction when we're done.
   * @param $ddl_statement
   *   Whether to execute a DDL statement during the transaction.
   */
  protected function transactionInnerLayer($suffix, $rollback = FALSE, $ddl_statement = FALSE) {
    $connection = Database::getConnection();
    $depth = $connection
      ->transactionDepth();

    // Start a transaction. If we're being called from ->transactionOuterLayer,
    // then we're already in a transaction. Normally, that would make starting
    // a transaction here dangerous, but the database API handles this problem
    // for us by tracking the nesting and avoiding the danger.
    $txn = db_transaction();
    $depth2 = $connection
      ->transactionDepth();
    $this
      ->assertTrue($depth < $depth2, 'Transaction depth is has increased with new transaction.');

    // Insert a single row into the testing table.
    db_insert('test')
      ->fields(array(
      'name' => 'Daniel' . $suffix,
      'age' => '19',
    ))
      ->execute();
    $this
      ->assertTrue($connection
      ->inTransaction(), 'In transaction inside nested transaction.');
    if ($ddl_statement) {
      $table = array(
        'fields' => array(
          'id' => array(
            'type' => 'serial',
            'unsigned' => TRUE,
            'not null' => TRUE,
          ),
        ),
        'primary key' => array(
          'id',
        ),
      );
      db_create_table('database_test_1', $table);
      $this
        ->assertTrue($connection
        ->inTransaction(), 'In transaction inside nested transaction.');
    }
    if ($rollback) {

      // Roll back the transaction, if requested.
      // This rollback should propagate to the last savepoint.
      $txn
        ->rollback();
      $this
        ->assertTrue($connection
        ->transactionDepth() == $depth, 'Transaction has rolled back to the last savepoint after calling rollback().');
    }
  }

  /**
   * Test transaction rollback on a database that supports transactions.
   *
   * If the active connection does not support transactions, this test does nothing.
   */
  function testTransactionRollBackSupported() {

    // This test won't work right if transactions are not supported.
    if (!Database::getConnection()
      ->supportsTransactions()) {
      return;
    }
    try {

      // Create two nested transactions. Roll back from the inner one.
      $this
        ->transactionOuterLayer('B', TRUE);

      // Neither of the rows we inserted in the two transaction layers
      // should be present in the tables post-rollback.
      $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
        ':name' => 'DavidB',
      ))
        ->fetchField();
      $this
        ->assertNotIdentical($saved_age, '24', 'Cannot retrieve DavidB row after commit.');
      $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
        ':name' => 'DanielB',
      ))
        ->fetchField();
      $this
        ->assertNotIdentical($saved_age, '19', 'Cannot retrieve DanielB row after commit.');
    } catch (Exception $e) {
      $this
        ->fail($e
        ->getMessage());
    }
  }

  /**
   * Test transaction rollback on a database that does not support transactions.
   *
   * If the active driver supports transactions, this test does nothing.
   */
  function testTransactionRollBackNotSupported() {

    // This test won't work right if transactions are supported.
    if (Database::getConnection()
      ->supportsTransactions()) {
      return;
    }
    try {

      // Create two nested transactions. Attempt to roll back from the inner one.
      $this
        ->transactionOuterLayer('B', TRUE);

      // Because our current database claims to not support transactions,
      // the inserted rows should be present despite the attempt to roll back.
      $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
        ':name' => 'DavidB',
      ))
        ->fetchField();
      $this
        ->assertIdentical($saved_age, '24', 'DavidB not rolled back, since transactions are not supported.');
      $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
        ':name' => 'DanielB',
      ))
        ->fetchField();
      $this
        ->assertIdentical($saved_age, '19', 'DanielB not rolled back, since transactions are not supported.');
    } catch (Exception $e) {
      $this
        ->fail($e
        ->getMessage());
    }
  }

  /**
   * Test committed transaction.
   *
   * The behavior of this test should be identical for connections that support
   * transactions and those that do not.
   */
  function testCommittedTransaction() {
    try {

      // Create two nested transactions. The changes should be committed.
      $this
        ->transactionOuterLayer('A');

      // Because we committed, both of the inserted rows should be present.
      $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
        ':name' => 'DavidA',
      ))
        ->fetchField();
      $this
        ->assertIdentical($saved_age, '24', 'Can retrieve DavidA row after commit.');
      $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
        ':name' => 'DanielA',
      ))
        ->fetchField();
      $this
        ->assertIdentical($saved_age, '19', 'Can retrieve DanielA row after commit.');
    } catch (Exception $e) {
      $this
        ->fail($e
        ->getMessage());
    }
  }

  /**
   * Test the compatibility of transactions with DDL statements.
   */
  function testTransactionWithDdlStatement() {

    // First, test that a commit works normally, even with DDL statements.
    $transaction = db_transaction();
    $this
      ->insertRow('row');
    $this
      ->executeDDLStatement();
    unset($transaction);
    $this
      ->assertRowPresent('row');

    // Even in different order.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $this
      ->executeDDLStatement();
    $this
      ->insertRow('row');
    unset($transaction);
    $this
      ->assertRowPresent('row');

    // Even with stacking.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $transaction2 = db_transaction();
    $this
      ->executeDDLStatement();
    unset($transaction2);
    $transaction3 = db_transaction();
    $this
      ->insertRow('row');
    unset($transaction3);
    unset($transaction);
    $this
      ->assertRowPresent('row');

    // A transaction after a DDL statement should still work the same.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $transaction2 = db_transaction();
    $this
      ->executeDDLStatement();
    unset($transaction2);
    $transaction3 = db_transaction();
    $this
      ->insertRow('row');
    $transaction3
      ->rollback();
    unset($transaction3);
    unset($transaction);
    $this
      ->assertRowAbsent('row');

    // The behavior of a rollback depends on the type of database server.
    if (Database::getConnection()
      ->supportsTransactionalDDL()) {

      // For database servers that support transactional DDL, a rollback
      // of a transaction including DDL statements should be possible.
      $this
        ->cleanUp();
      $transaction = db_transaction();
      $this
        ->insertRow('row');
      $this
        ->executeDDLStatement();
      $transaction
        ->rollback();
      unset($transaction);
      $this
        ->assertRowAbsent('row');

      // Including with stacking.
      $this
        ->cleanUp();
      $transaction = db_transaction();
      $transaction2 = db_transaction();
      $this
        ->executeDDLStatement();
      unset($transaction2);
      $transaction3 = db_transaction();
      $this
        ->insertRow('row');
      unset($transaction3);
      $transaction
        ->rollback();
      unset($transaction);
      $this
        ->assertRowAbsent('row');
    }
    else {

      // For database servers that do not support transactional DDL,
      // the DDL statement should commit the transaction stack.
      $this
        ->cleanUp();
      $transaction = db_transaction();
      $this
        ->insertRow('row');
      $this
        ->executeDDLStatement();
      set_error_handler(array(
        $this,
        'rollBackWithoutTransactionErrorHandler',
      ));
      try {

        // Rollback the outer transaction.
        $transaction
          ->rollback();

        // @see \DatabaseConnection_mysql::rollback()
        if (PHP_VERSION_ID >= 80000) {
          $this
            ->fail('Rolling back a transaction containing DDL should produce a warning.');
        }
      } catch (Exception $e) {
        $this
          ->assertEqual('Rollback attempted when there is no active transaction.', $e
          ->getMessage());
      }
      restore_error_handler();
      unset($transaction);
      $this
        ->assertRowPresent('row');
    }
  }

  /**
   * Special handling of "rollback without transaction" errors.
   */
  public function rollBackWithoutTransactionErrorHandler($error_level, $message, $filename, $line) {

    // Throw an exception if this is a "rollback without transaction" error.
    if (strpos($message, 'Rollback attempted when there is no active transaction.') !== FALSE) {
      throw new Exception('Rollback attempted when there is no active transaction.');
    }
    _drupal_error_handler($error_level, $message, $filename, $line);
  }

  /**
   * Insert a single row into the testing table.
   */
  protected function insertRow($name) {
    db_insert('test')
      ->fields(array(
      'name' => $name,
    ))
      ->execute();
  }

  /**
   * Execute a DDL statement.
   */
  protected function executeDDLStatement() {
    static $count = 0;
    $table = array(
      'fields' => array(
        'id' => array(
          'type' => 'serial',
          'unsigned' => TRUE,
          'not null' => TRUE,
        ),
      ),
      'primary key' => array(
        'id',
      ),
    );
    db_create_table('database_test_' . ++$count, $table);
  }

  /**
   * Start over for a new test.
   */
  protected function cleanUp() {
    db_truncate('test')
      ->execute();
  }

  /**
   * Assert that a given row is present in the test table.
   *
   * @param $name
   *   The name of the row.
   * @param $message
   *   The message to log for the assertion.
   */
  function assertRowPresent($name, $message = NULL) {
    if (!isset($message)) {
      $message = format_string('Row %name is present.', array(
        '%name' => $name,
      ));
    }
    $present = (bool) db_query('SELECT 1 FROM {test} WHERE name = :name', array(
      ':name' => $name,
    ))
      ->fetchField();
    return $this
      ->assertTrue($present, $message);
  }

  /**
   * Assert that a given row is absent from the test table.
   *
   * @param $name
   *   The name of the row.
   * @param $message
   *   The message to log for the assertion.
   */
  function assertRowAbsent($name, $message = NULL) {
    if (!isset($message)) {
      $message = format_string('Row %name is absent.', array(
        '%name' => $name,
      ));
    }
    $present = (bool) db_query('SELECT 1 FROM {test} WHERE name = :name', array(
      ':name' => $name,
    ))
      ->fetchField();
    return $this
      ->assertFalse($present, $message);
  }

  /**
   * Test transaction stacking and commit / rollback.
   */
  function testTransactionStacking() {

    // This test won't work right if transactions are not supported.
    if (!Database::getConnection()
      ->supportsTransactions()) {
      return;
    }
    $database = Database::getConnection();

    // Standard case: pop the inner transaction before the outer transaction.
    $transaction = db_transaction();
    $this
      ->insertRow('outer');
    $transaction2 = db_transaction();
    $this
      ->insertRow('inner');

    // Pop the inner transaction.
    unset($transaction2);
    $this
      ->assertTrue($database
      ->inTransaction(), 'Still in a transaction after popping the inner transaction');

    // Pop the outer transaction.
    unset($transaction);
    $this
      ->assertFalse($database
      ->inTransaction(), 'Transaction closed after popping the outer transaction');
    $this
      ->assertRowPresent('outer');
    $this
      ->assertRowPresent('inner');

    // Pop the transaction in a different order they have been pushed.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $this
      ->insertRow('outer');
    $transaction2 = db_transaction();
    $this
      ->insertRow('inner');

    // Pop the outer transaction, nothing should happen.
    unset($transaction);
    $this
      ->insertRow('inner-after-outer-commit');
    $this
      ->assertTrue($database
      ->inTransaction(), 'Still in a transaction after popping the outer transaction');

    // Pop the inner transaction, the whole transaction should commit.
    unset($transaction2);
    $this
      ->assertFalse($database
      ->inTransaction(), 'Transaction closed after popping the inner transaction');
    $this
      ->assertRowPresent('outer');
    $this
      ->assertRowPresent('inner');
    $this
      ->assertRowPresent('inner-after-outer-commit');

    // Rollback the inner transaction.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $this
      ->insertRow('outer');
    $transaction2 = db_transaction();
    $this
      ->insertRow('inner');

    // Now rollback the inner transaction.
    $transaction2
      ->rollback();
    unset($transaction2);
    $this
      ->assertTrue($database
      ->inTransaction(), 'Still in a transaction after popping the outer transaction');

    // Pop the outer transaction, it should commit.
    $this
      ->insertRow('outer-after-inner-rollback');
    unset($transaction);
    $this
      ->assertFalse($database
      ->inTransaction(), 'Transaction closed after popping the inner transaction');
    $this
      ->assertRowPresent('outer');
    $this
      ->assertRowAbsent('inner');
    $this
      ->assertRowPresent('outer-after-inner-rollback');

    // Rollback the inner transaction after committing the outer one.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $this
      ->insertRow('outer');
    $transaction2 = db_transaction();
    $this
      ->insertRow('inner');

    // Pop the outer transaction, nothing should happen.
    unset($transaction);
    $this
      ->assertTrue($database
      ->inTransaction(), 'Still in a transaction after popping the outer transaction');

    // Now rollback the inner transaction, it should rollback.
    $transaction2
      ->rollback();
    unset($transaction2);
    $this
      ->assertFalse($database
      ->inTransaction(), 'Transaction closed after popping the inner transaction');
    $this
      ->assertRowPresent('outer');
    $this
      ->assertRowAbsent('inner');

    // Rollback the outer transaction while the inner transaction is active.
    // In that case, an exception will be triggered because we cannot
    // ensure that the final result will have any meaning.
    $this
      ->cleanUp();
    $transaction = db_transaction();
    $this
      ->insertRow('outer');
    $transaction2 = db_transaction();
    $this
      ->insertRow('inner');
    $transaction3 = db_transaction();
    $this
      ->insertRow('inner2');

    // Rollback the outer transaction.
    try {
      $transaction
        ->rollback();
      unset($transaction);
      $this
        ->fail('Rolling back the outer transaction while the inner transaction is active resulted in an exception.');
    } catch (DatabaseTransactionOutOfOrderException $e) {
      $this
        ->pass('Rolling back the outer transaction while the inner transaction is active resulted in an exception.');
    }
    $this
      ->assertFalse($database
      ->inTransaction(), 'No more in a transaction after rolling back the outer transaction');

    // Try to commit one inner transaction.
    unset($transaction3);
    $this
      ->pass('Trying to commit an inner transaction resulted in an exception.');

    // Try to rollback one inner transaction.
    try {
      $transaction
        ->rollback();
      unset($transaction2);
      $this
        ->fail('Trying to commit an inner transaction resulted in an exception.');
    } catch (DatabaseTransactionNoActiveException $e) {
      $this
        ->pass('Trying to commit an inner transaction resulted in an exception.');
    }
    $this
      ->assertRowAbsent('outer');
    $this
      ->assertRowAbsent('inner');
    $this
      ->assertRowAbsent('inner2');
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DatabaseTestCase::$profile	protected	property	The profile to install as a basis for testing. Overrides DrupalWebTestCase::$profile
DatabaseTestCase::addSampleData		function	Setup our sample data.
DatabaseTestCase::ensureSampleDataNull		function	Set up tables for NULL handling.
DatabaseTestCase::installTables		function	Set up several tables needed by a certain test.
DatabaseTestCase::setUp		function	Sets up a Drupal site for running functional and integration tests. Overrides DrupalWebTestCase::setUp	6
DatabaseTransactionTestCase::assertRowAbsent		function	Assert that a given row is absent from the test table.
DatabaseTransactionTestCase::assertRowPresent		function	Assert that a given row is present in the test table.
DatabaseTransactionTestCase::cleanUp	protected	function	Start over for a new test.
DatabaseTransactionTestCase::executeDDLStatement	protected	function	Execute a DDL statement.
DatabaseTransactionTestCase::getInfo	public static	function
DatabaseTransactionTestCase::insertRow	protected	function	Insert a single row into the testing table.
DatabaseTransactionTestCase::rollBackWithoutTransactionErrorHandler	public	function	Special handling of "rollback without transaction" errors.
DatabaseTransactionTestCase::testCommittedTransaction		function	Test committed transaction.
DatabaseTransactionTestCase::testTransactionRollBackNotSupported		function	Test transaction rollback on a database that does not support transactions.
DatabaseTransactionTestCase::testTransactionRollBackSupported		function	Test transaction rollback on a database that supports transactions.
DatabaseTransactionTestCase::testTransactionStacking		function	Test transaction stacking and commit / rollback.
DatabaseTransactionTestCase::testTransactionWithDdlStatement		function	Test the compatibility of transactions with DDL statements.
DatabaseTransactionTestCase::transactionInnerLayer	protected	function	Helper method for transaction unit tests. This "inner layer" transaction is either used alone or nested inside of the "outer layer" transaction.
DatabaseTransactionTestCase::transactionOuterLayer	protected	function	Helper method for transaction unit test.
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::$redirect_count	protected	property	The number of redirects followed during the handling of a request.
DrupalWebTestCase::$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::refreshVariables	protected	function	Refresh the in-memory set of variables. Useful after a page request is made that changes a variable in a different thread.	1
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.
DrupalWebTestCase::__construct		function	Constructor for DrupalWebTestCase. Overrides DrupalTestCase::__construct	1

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class DatabaseTransactionTestCase in Drupal 7

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