/**
  * @since 2.7.0
  * @covers WC_Register_WP_Admin_Settings::register_group
  */
 public function test_register_group()
 {
     $settings = new WC_Register_WP_Admin_Settings($this->page, 'page');
     $existing = array('id' => 'existing-id', 'label' => 'Existing Group');
     $initial = array($existing);
     $expected = array($existing, array('id' => $this->page->get_id(), 'label' => $this->page->get_label()));
     $actual = $settings->register_page_group($initial);
     $this->assertEquals($expected, $actual);
 }