function OptionsWidgetsTest::testEmptyValue

Tests the 'options_select' and 'options_button' widget for empty value.

File

core/modules/options/tests/src/Functional/OptionsWidgetsTest.php, line 591

Class

OptionsWidgetsTest

Tests the Options widgets.

Namespace

Code

public function testEmptyValue() : void {
    // Create an instance of the 'single value' field.
    $field = FieldConfig::create([
        'field_storage' => $this->card1,
        'bundle' => 'entity_test',
    ]);
    $field->save();
    
    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
    $display_repository = \Drupal::service('entity_display.repository');
    // Change it to the check boxes/radio buttons widget.
    $display_repository->getFormDisplay('entity_test', 'entity_test')
        ->setComponent($this->card1
        ->getName(), [
        'type' => 'options_buttons',
    ])
        ->save();
    // Create an entity.
    $entity = EntityTest::create([
        'user_id' => 1,
        'name' => $this->randomMachineName(),
    ]);
    $entity->save();
    // Display form: check that _none options are present and has label.
    $this->drupalGet('entity_test/manage/' . $entity->id() . '/edit');
    // Verify that a test radio button has a "None" choice.
    $this->assertSession()
        ->elementExists('xpath', '//div[@id="edit-card-1"]//input[@value="_none"]');
    // Verify that a test radio button has a "N/A" choice..
    $this->assertSession()
        ->elementExists('xpath', '//div[@id="edit-card-1"]//label[@for="edit-card-1-none"]');
    $this->assertSession()
        ->elementTextEquals('xpath', '//div[@id="edit-card-1"]//label[@for="edit-card-1-none"]', "N/A");
    // Change it to the select widget.
    $display_repository->getFormDisplay('entity_test', 'entity_test')
        ->setComponent($this->card1
        ->getName(), [
        'type' => 'options_select',
    ])
        ->save();
    // Display form: check that _none options are present and has label.
    $this->drupalGet('entity_test/manage/' . $entity->id() . '/edit');
    // A required field without any value has a "none" option.
    $option = $this->assertSession()
        ->optionExists('edit-card-1', '_none');
    $this->assertSame('- None -', $option->getText());
}