public function buildExtraOptionsForm(&$form, FormStateInterface $form_state)
{
parent::buildExtraOptionsForm($form, $form_state);
$form['depth'] = array('#type' => 'weight', '#title' => $this->t('Depth'), '#default_value' => $this->options['depth'], '#description' => $this->t('The depth will match nodes tagged with terms in the hierarchy. For example, if you have the term "fruit" and a child term "apple", with a depth of 1 (or higher) then filtering for the term "fruit" will get nodes that are tagged with "apple" as well as "fruit". If negative, the reverse is true; searching for "apple" will also pick up nodes tagged with "fruit" if depth is -1 (or lower).'));
}
/**
* @covers ::getValueOptions
*/
public function testGetValueOptionsReturnsAnArrayValue()
{
$values = $this->TaxonomyIndexTid->getValueOptions();
$this->assertInternalType('array', $values);
$this->assertArrayEquals(['key1' => 'foo'], $values);
}
