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']);
}