Presents the ConfigTest edit form.
\Drupal\config_test\Plugin\Core\Entity\ConfigTest $config_test: The ConfigTest object to edit.
array A form array as expected by drupal_render().
public function edit(ConfigTest $config_test) {
drupal_set_title(String::format('Edit %label', array(
'%label' => $config_test
->label(),
)), PASS_THROUGH);
return entity_get_form($config_test);
}