function ElementsFieldsetTest::testFieldsetDescriptions

Tests different display options for fieldset element descriptions.

File

core/modules/system/tests/src/Kernel/Form/ElementsFieldsetTest.php, line 114

Class

ElementsFieldsetTest

Tests fieldset element rendering and description placement.

Namespace

Code

public function testFieldsetDescriptions() : void {
    $form_state = new FormState();
    $form = \Drupal::formBuilder()->getForm($this);
    $this->render($form);
    // Check #description placement with #description_display not set. By
    // default, the #description should appear after any fieldset elements.
    $field_id = 'edit-fieldset-default';
    $description_id = $field_id . '--description';
    $elements = $this->xpath('//fieldset[@id="' . $field_id . '" and @aria-describedby="' . $description_id . '"]//div[@id="edit-meta-default"]/following-sibling::div[@id="' . $description_id . '"]');
    $this->assertCount(1, $elements);
    // Check #description placement with #description_display set to 'before'.
    $field_id = 'edit-fieldset-before';
    $description_id = $field_id . '--description';
    $elements = $this->xpath('//fieldset[@id="' . $field_id . '" and @aria-describedby="' . $description_id . '"]//div[@id="edit-meta-before"]/preceding-sibling::div[@id="' . $description_id . '"]');
    $this->assertCount(1, $elements);
    // Check #description placement with #description_display set to 'after'.
    $field_id = 'edit-fieldset-after';
    $description_id = $field_id . '--description';
    $elements = $this->xpath('//fieldset[@id="' . $field_id . '" and @aria-describedby="' . $description_id . '"]//div[@id="edit-meta-after"]/following-sibling::div[@id="' . $description_id . '"]');
    $this->assertCount(1, $elements);
    // Check if the 'visually-hidden' class is set on the fieldset description
    // with #description_display set to 'invisible'. Also check that the
    // description is placed after the form element.
    $field_id = 'edit-fieldset-invisible';
    $description_id = $field_id . '--description';
    $elements = $this->xpath('//fieldset[@id="' . $field_id . '" and @aria-describedby="' . $description_id . '"]//div[@id="edit-meta-invisible"]/following-sibling::div[contains(@class, "visually-hidden")]');
    $this->assertCount(1, $elements);
    \Drupal::formBuilder()->submitForm($this, $form_state);
    $errors = $form_state->getErrors();
    $this->assertEmpty($errors);
}