function LockTest::testBackendLockRelease

Tests backend release functionality.

File

core/tests/Drupal/KernelTests/Core/Lock/LockTest.php, line 35

Class

LockTest

Tests the Database lock backend.

Namespace

Code

public function testBackendLockRelease() : void {
  $success = $this->lock
    ->acquire('lock_a');
  $this->assertTrue($success, 'Could acquire first lock.');
  // This function is not part of the backend, but the default database
  // backend implement it, we can here use it safely.
  $is_free = $this->lock
    ->lockMayBeAvailable('lock_a');
  $this->assertFalse($is_free, 'First lock is unavailable.');
  $this->lock
    ->release('lock_a');
  $is_free = $this->lock
    ->lockMayBeAvailable('lock_a');
  $this->assertTrue($is_free, 'First lock has been released.');
  $success = $this->lock
    ->acquire('lock_b');
  $this->assertTrue($success, 'Could acquire second lock.');
  $success = $this->lock
    ->acquire('lock_b');
  $this->assertTrue($success, 'Could acquire second lock a second time within the same request.');
  $this->lock
    ->release('lock_b');
  // Test acquiring and releasing a lock with a long key (over 255 chars).
  $long_key = 'long_key:BZoMiSf9IIPULsJ98po18TxJ6T4usd3MZrLE0d3qMgG6iAgDlOi1G3oMap7zI5df84l7LtJBg4bOj6XvpO6vDRmP5h5QbA0Bj9rVFiPIPAIQZ9qFvJqTALiK1OR3GpOkWQ4vgEA4LkY0UfznrWBeuK7IWZfv1um6DLosnVXd1z1cJjvbEUqYGJj92rwHfhYihLm8IO9t3P2gAvEkH5Mhc8GBoiTsIDnP01Te1kxGFHO3RuvJIxPnHmZtSdBggmuVN7x9';
  $success = $this->lock
    ->acquire($long_key);
  $this->assertTrue($success, 'Could acquire long key lock.');
  // This function is not part of the backend, but the default database
  // backend implement it, we can here use it safely.
  $is_free = $this->lock
    ->lockMayBeAvailable($long_key);
  $this->assertFalse($is_free, 'Long key lock is unavailable.');
  $this->lock
    ->release($long_key);
  $is_free = $this->lock
    ->lockMayBeAvailable($long_key);
  $this->assertTrue($is_free, 'Long key lock has been released.');
}