getViewFields example

$this->assertSession()->fieldValueEquals('edit-fields-' . $field . '-weight', $idx + 1);
    }
  }

  /** * Tests field sorting. */
  public function testRearrangeFields() {
    $view_name = 'test_view';

    // Checks that the order on the rearrange form matches the creation order.     $this->assertFieldOrder($view_name, $this->getViewFields($view_name));

    // Checks that a field is not deleted if a value is not passed back.     $fields = [];
    $this->drupalGet('admin/structure/views/nojs/rearrange/' . $view_name . '/default/field');
    $this->submitForm($fields, 'Apply');
    $this->assertFieldOrder($view_name, $this->getViewFields($view_name));

    // Checks that revers the new field order is respected.     $reversedFields = array_reverse($this->getViewFields($view_name));
    $fields = [];
    foreach ($reversedFields as $delta => $field) {