DatabaseInvalidDataTestCase::testInsertDuplicateData

Traditional SQL database systems abort inserts when invalid data is encountered.

File

modules/simpletest/tests/database_test.test, line 3176

Code

function testInsertDuplicateData() {
  // Try to insert multiple records where at least one has bad data.
  try {
    db_insert('test')
        ->fields(array('name', 'age', 'job'))
        ->values(array(
      'name' => 'Elvis', 
      'age' => 63, 
      'job' => 'Singer',
    ))->values(array(
      'name' => 'John', // <-- Duplicate value on unique field. 
      'age' => 17, 
      'job' => 'Consultant',
    ))
        ->values(array(
      'name' => 'Frank', 
      'age' => 75, 
      'job' => 'Singer',
    ))
        ->execute();
    $this->fail(t('Insert succeedded when it should not have.'));
  }
  catch (Exception $e) {
    // Check if the first record was inserted.
    $name = db_query('SELECT name FROM {test} WHERE age = :age', array(':age' => 63))->fetchField();

    if ($name == 'Elvis') {
      if (!Database::getConnection()->supportsTransactions()) {
        // This is an expected fail.
        // Database engines that don't support transactions can leave partial
        // inserts in place when an error occurs. This is the case for MySQL
        // when running on a MyISAM table.
        $this->pass(t("The whole transaction has not been rolled-back when a duplicate key insert occurs, this is expected because the database doesn't support transactions"));
      }
      else {
        $this->fail(t('The whole transaction is rolled back when a duplicate key insert occurs.'));
      }
    }
    else {
      $this->pass(t('The whole transaction is rolled back when a duplicate key insert occurs.'));
    }

    // Ensure the other values were not inserted.
    $record = db_select('test')
        ->fields('test', array('name', 'age'))
        ->condition('age', array(17, 75), 'IN')
        ->execute()->fetchObject();

    $this->assertFalse($record, t('The rest of the insert aborted as expected.'));
  }
}