class OptionsFieldTest

class OptionsFieldTest extends OptionsFieldUnitTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'options',
    ];
    
    /**
     * Tests that allowed values can be updated.
     */
    public function testUpdateAllowedValues() : void {
        // All three options appear.
        $entity = EntityTest::create();
        $form = \Drupal::service('entity.form_builder')->getForm($entity);
        $this->assertArrayHasKey(1, $form[$this->fieldName]['widget'], 'Option 1 exists');
        $this->assertArrayHasKey(2, $form[$this->fieldName]['widget'], 'Option 2 exists');
        $this->assertArrayHasKey(3, $form[$this->fieldName]['widget'], 'Option 3 exists');
        // Use one of the values in an actual entity, and check that this value
        // cannot be removed from the list.
        $entity = EntityTest::create();
        $entity->{$this->fieldName}->value = 1;
        $entity->save();
        $this->fieldStorage
            ->setSetting('allowed_values', [
            2 => 'Two',
        ]);
        try {
            $this->fieldStorage
                ->save();
            $this->fail('Cannot update a list field storage to not include keys with existing data.');
        } catch (FieldStorageDefinitionUpdateForbiddenException) {
            // Expected exception; just continue testing.
        }
        // Empty the value, so that we can actually remove the option.
        unset($entity->{$this->fieldName});
        $entity->save();
        // Removed options do not appear.
        $this->fieldStorage
            ->setSetting('allowed_values', [
            2 => 'Two',
        ]);
        $this->fieldStorage
            ->save();
        $entity = EntityTest::create();
        $form = \Drupal::service('entity.form_builder')->getForm($entity);
        $this->assertArrayNotHasKey(1, $form[$this->fieldName]['widget'], 'Option 1 does not exist');
        $this->assertArrayHasKey(2, $form[$this->fieldName]['widget'], 'Option 2 exists');
        $this->assertArrayNotHasKey(3, $form[$this->fieldName]['widget'], 'Option 3 does not exist');
        // Completely new options appear.
        $this->fieldStorage
            ->setSetting('allowed_values', [
            10 => 'Update',
            20 => 'Twenty',
        ]);
        $this->fieldStorage
            ->save();
        // The entity holds an outdated field object with the old allowed values
        // setting, so we need to reinitialize the entity object.
        $entity = EntityTest::create();
        $form = \Drupal::service('entity.form_builder')->getForm($entity);
        $this->assertArrayNotHasKey(1, $form[$this->fieldName]['widget'], 'Option 1 does not exist');
        $this->assertArrayNotHasKey(2, $form[$this->fieldName]['widget'], 'Option 2 does not exist');
        $this->assertArrayNotHasKey(3, $form[$this->fieldName]['widget'], 'Option 3 does not exist');
        $this->assertArrayHasKey(10, $form[$this->fieldName]['widget'], 'Option 10 exists');
        $this->assertArrayHasKey(20, $form[$this->fieldName]['widget'], 'Option 20 exists');
        // Options are reset when a new field with the same name is created.
        $this->fieldStorage
            ->delete();
        FieldStorageConfig::create($this->fieldStorageDefinition)
            ->save();
        FieldConfig::create([
            'field_name' => $this->fieldName,
            'entity_type' => 'entity_test',
            'bundle' => 'entity_test',
            'required' => TRUE,
        ])
            ->save();
        \Drupal::service('entity_display.repository')->getFormDisplay('entity_test', 'entity_test')
            ->setComponent($this->fieldName, [
            'type' => 'options_buttons',
        ])
            ->save();
        $entity = EntityTest::create();
        $form = \Drupal::service('entity.form_builder')->getForm($entity);
        $this->assertArrayHasKey(1, $form[$this->fieldName]['widget'], 'Option 1 exists');
        $this->assertArrayHasKey(2, $form[$this->fieldName]['widget'], 'Option 2 exists');
        $this->assertArrayHasKey(3, $form[$this->fieldName]['widget'], 'Option 3 exists');
        // Test the generateSampleValue() method.
        $entity = EntityTest::create();
        $entity->{$this->fieldName}
            ->generateSampleItems();
        $this->entityValidateAndSave($entity);
    }
    
    /**
     * Tests that ::generateSampleItems does not fail with empty allowed values.
     */
    public function testGenerateSampleItemsWithNoAllowedValues() : void {
        $this->fieldStorage
            ->setSetting('allowed_values', [])
            ->save();
        $entity = EntityTest::create();
        $value = $entity->{$this->fieldName}
            ->generateSampleItems();
        $this->assertNull($value);
    }

}