class MachineNameTest

class MachineNameTest extends UnitTestCase {
    
    /**
     * @covers ::valueCallback
     *
     * @dataProvider providerTestValueCallback
     */
    public function testValueCallback($expected, $input) {
        $element = [];
        $form_state = $this->prophesize(FormStateInterface::class)
            ->reveal();
        $this->assertSame($expected, MachineName::valueCallback($element, $input, $form_state));
    }
    
    /**
     * Data provider for testValueCallback().
     */
    public function providerTestValueCallback() {
        $data = [];
        $data[] = [
            NULL,
            FALSE,
        ];
        $data[] = [
            NULL,
            NULL,
        ];
        $data[] = [
            '',
            [
                'test',
            ],
        ];
        $data[] = [
            'test',
            'test',
        ];
        $data[] = [
            '123',
            123,
        ];
        return $data;
    }
    
    /**
     * @covers ::processMachineName
     */
    public function testProcessMachineName() {
        $form_state = new FormState();
        $element = [
            '#id' => 'test',
            '#field_suffix' => 'test_suffix',
            '#field_prefix' => 'test_prefix',
            '#machine_name' => [
                'source' => [
                    'test_source',
                ],
                'maxlength' => 32,
                'additional_property' => TRUE,
                '#additional_property_with_hash' => TRUE,
            ],
            // The process function requires these to be set. During regular form
            // building they are always set.
'#name' => 'test_machine_name',
            '#default_value' => NULL,
        ];
        $complete_form = [
            'test_source' => [
                '#type' => 'textfield',
                '#id' => 'source',
            ],
            'test_machine_name' => $element,
        ];
        $form_state->setCompleteForm($complete_form);
        $language = $this->prophesize(LanguageInterface::class);
        $language->getId()
            ->willReturn('xx-lolspeak');
        $language_manager = $this->prophesize(LanguageManagerInterface::class);
        $language_manager->getCurrentLanguage()
            ->willReturn($language);
        $csrf_token = $this->prophesize(CsrfTokenGenerator::class);
        $csrf_token->get('[^a-z0-9_]+')
            ->willReturn('tis-a-fine-token');
        $container = $this->prophesize(ContainerInterface::class);
        $container->get('language_manager')
            ->willReturn($language_manager->reveal());
        $container->get('csrf_token')
            ->willReturn($csrf_token->reveal());
        \Drupal::setContainer($container->reveal());
        $element = MachineName::processMachineName($element, $form_state, $complete_form);
        $settings = $element['#attached']['drupalSettings']['machineName']['#source'];
        $allowed_options = [
            'replace_pattern',
            'replace',
            'maxlength',
            'target',
            'label',
            'field_prefix',
            'field_suffix',
            'suffix',
            'replace_token',
        ];
        $this->assertEmpty(array_diff_key($settings, array_flip($allowed_options)));
        foreach ($allowed_options as $key) {
            $this->assertArrayHasKey($key, $settings);
        }
    }

}