function TransactionTest::testTransactionStacking

Tests transaction stacking, commit, and rollback.

File

core/tests/Drupal/KernelTests/Core/Database/TransactionTest.php, line 355

Class

TransactionTest

Tests the transaction abstraction system.

Namespace

Code

public function testTransactionStacking() {
  // Standard case: pop the inner transaction before the outer transaction.
  $transaction = $this->connection
    ->startTransaction();
  $this->insertRow('outer');
  $transaction2 = $this->connection
    ->startTransaction();
  $this->insertRow('inner');
  // Pop the inner transaction.
  unset($transaction2);
  $this->assertTrue($this->connection
    ->inTransaction(), 'Still in a transaction after popping the inner transaction');
  // Pop the outer transaction.
  unset($transaction);
  $this->assertFalse($this->connection
    ->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 = $this->connection
    ->startTransaction();
  $this->insertRow('outer');
  $transaction2 = $this->connection
    ->startTransaction();
  $this->insertRow('inner');
  // Pop the outer transaction, nothing should happen.
  unset($transaction);
  $this->insertRow('inner-after-outer-commit');
  $this->assertTrue($this->connection
    ->inTransaction(), 'Still in a transaction after popping the outer transaction');
  // Pop the inner transaction, the whole transaction should commit.
  unset($transaction2);
  $this->assertFalse($this->connection
    ->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 = $this->connection
    ->startTransaction();
  $this->insertRow('outer');
  $transaction2 = $this->connection
    ->startTransaction();
  $this->insertRow('inner');
  // Now rollback the inner transaction.
  $transaction2->rollBack();
  unset($transaction2);
  $this->assertTrue($this->connection
    ->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);
  $this->assertFalse($this->connection
    ->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 = $this->connection
    ->startTransaction();
  $this->insertRow('outer');
  $transaction2 = $this->connection
    ->startTransaction();
  $this->insertRow('inner');
  // Pop the outer transaction, nothing should happen.
  unset($transaction);
  $this->assertTrue($this->connection
    ->inTransaction(), 'Still in a transaction after popping the outer transaction');
  // Now rollback the inner transaction, it should rollback.
  $transaction2->rollBack();
  unset($transaction2);
  $this->assertFalse($this->connection
    ->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 = $this->connection
    ->startTransaction();
  $this->insertRow('outer');
  $transaction2 = $this->connection
    ->startTransaction();
  $this->insertRow('inner');
  $transaction3 = $this->connection
    ->startTransaction();
  $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 (TransactionOutOfOrderException $e) {
    // Expected exception; just continue testing.
  }
  $this->assertFalse($this->connection
    ->inTransaction(), 'No more in a transaction after rolling back the outer transaction');
  // Try to commit one inner transaction.
  unset($transaction3);
  // Try to rollback one inner transaction.
  try {
    $transaction->rollBack();
    unset($transaction2);
    $this->fail('Trying to commit an inner transaction resulted in an exception.');
  } catch (TransactionNoActiveException $e) {
    // Expected exception; just continue testing.
  }
  $this->assertRowAbsent('outer');
  $this->assertRowAbsent('inner');
  $this->assertRowAbsent('inner2');
}