class ArgumentTransformTermTest

class ArgumentTransformTermTest extends TaxonomyTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_argument_transform_term',
    ];
    
    /**
     * Tests term argument transformation of hyphens and spaces.
     *
     * @dataProvider termArgumentTransformationProvider
     *
     * @param string $name
     *   The name of the taxonomy term to use for the test.
     */
    public function testTermArgumentTransformation($name) : void {
        
        /** @var \Drupal\taxonomy\TermInterface $term */
        $term = $this->createTerm([
            'name' => $name,
        ]);
        
        /** @var \Drupal\views\ViewExecutable $view */
        $view = Views::getView('test_argument_transform_term');
        $view->initHandlers();
        
        /** @var string $hyphenated_term */
        $hyphenated_term = str_replace(' ', '-', $term->label());
        $this->assertTrue($view->argument['tid']
            ->setArgument($hyphenated_term));
        // Assert hyphens are converted back to spaces.
        $this->assertEquals($term->label(), $view->argument['tid']->argument);
    }
    
    /**
     * Provides data for testTermArgumentTransformation().
     *
     * @return array[]
     *   Test data.
     */
    public static function termArgumentTransformationProvider() {
        return [
            'space in the middle' => [
                'name' => Random::machineName() . ' ' . Random::machineName(),
            ],
            'space at the start' => [
                'name' => ' ' . Random::machineName(),
            ],
            'space at the end' => [
                'name' => Random::machineName() . ' ',
            ],
        ];
    }

}