function StorageTestBase::testNonExistingKeys

Tests expected behavior for non-existing keys.

File

core/tests/Drupal/KernelTests/Core/KeyValueStore/StorageTestBase.php, line 132

Class

StorageTestBase

Base class for testing key-value storages.

Namespace

Code

public function testNonExistingKeys() : void {
  $stores = $this->createStorage();
  // Verify that a non-existing key returns NULL as value.
  $this->assertNull($stores[0]->get('foo'));
  // Verify that a non-existing key with a default returns the default.
  $this->assertSame('bar', $stores[0]->get('foo', 'bar'));
  // Verify that a FALSE value can be stored.
  $stores[0]->set('foo', FALSE);
  $this->assertFalse($stores[0]->get('foo'));
  // Verify that a deleted key returns NULL as value.
  $stores[0]->delete('foo');
  $this->assertNull($stores[0]->get('foo'));
  // Verify that a non-existing key is not returned when getting multiple keys.
  $stores[0]->set('bar', 'baz');
  $values = $stores[0]->getMultiple([
    'foo',
    'bar',
  ]);
  $this->assertFalse(isset($values['foo']), "Key 'foo' not found.");
  $this->assertSame('baz', $values['bar']);
}