function TransactionTest::testTransactionRollBackSupported

Tests transaction rollback on a database that supports transactions.

If the active connection does not support transactions, this test does nothing.

File

core/tests/Drupal/KernelTests/Core/Database/TransactionTest.php, line 147

Class

TransactionTest

Tests the transaction abstraction system.

Namespace

Code

public function testTransactionRollBackSupported() {
  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 = $this->connection
      ->query('SELECT [age] FROM {test} WHERE [name] = :name', [
      ':name' => 'DavidB',
    ])
      ->fetchField();
    $this->assertNotSame('24', $saved_age, 'Cannot retrieve DavidB row after commit.');
    $saved_age = $this->connection
      ->query('SELECT [age] FROM {test} WHERE [name] = :name', [
      ':name' => 'DanielB',
    ])
      ->fetchField();
    $this->assertNotSame('19', $saved_age, 'Cannot retrieve DanielB row after commit.');
  } catch (\Exception $e) {
    $this->fail($e->getMessage());
  }
}