Tests expected behavior for non-existing keys.
public function testNonExistingKeys() {
$stores = $this
->createStorage();
// Verify that a non-existing key returns NULL as value.
$this
->assertNull($stores[0]
->get('foo'));
// Verify that a FALSE value can be stored.
$stores[0]
->set('foo', FALSE);
$this
->assertIdentical($stores[0]
->get('foo'), FALSE);
// 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(array(
'foo',
'bar',
));
$this
->assertFalse(isset($values['foo']), "Key 'foo' not found.");
$this
->assertIdentical($values['bar'], 'baz');
}