ExposedFormCheckboxesTest.php

<?php

namespace Drupal\Tests\views\Functional\Plugin;

use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\taxonomy\Entity\Term;
use Drupal\taxonomy\Entity\Vocabulary;
use Drupal\Tests\field\Traits\EntityReferenceTestTrait;
use Drupal\Tests\views\Functional\ViewTestBase;
use Drupal\views\Tests\ViewTestData;
use Drupal\views\Views;

/**
 * Tests exposed forms functionality.
 *
 * @group views
 */
class ExposedFormCheckboxesTest extends ViewTestBase {
    use EntityReferenceTestTrait;
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_exposed_form_checkboxes',
    ];
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'node',
        'views_ui',
        'taxonomy',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Test terms.
     *
     * @var array
     */
    public $terms = [];
    
    /**
     * Vocabulary for testing checkbox options.
     *
     * @var \Drupal\taxonomy\Entity\Vocabulary
     */
    public $vocabulary;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE) {
        parent::setUp(FALSE);
        // Create a vocabulary and entity reference field so we can test the "is all
        // of" filter operator. Must be done ahead of the view import so the
        // vocabulary is in place to meet the view dependencies.
        $vocabulary = Vocabulary::create([
            'name' => 'test_exposed_checkboxes',
            'vid' => 'test_exposed_checkboxes',
            'nodes' => [
                'article' => 'article',
            ],
        ]);
        $vocabulary->save();
        $this->vocabulary = $vocabulary;
        ViewTestData::createTestViews(self::class, [
            'views_test_config',
        ]);
        $this->enableViewsTestModule();
        // Create two content types.
        $this->drupalCreateContentType([
            'type' => 'article',
        ]);
        $this->drupalCreateContentType([
            'type' => 'page',
        ]);
        // Create some random nodes: 5 articles, one page.
        for ($i = 0; $i < 5; $i++) {
            $this->drupalCreateNode([
                'type' => 'article',
            ]);
        }
        $this->drupalCreateNode([
            'type' => 'page',
        ]);
    }
    
    /**
     * Tests overriding the default render option with checkboxes.
     */
    public function testExposedFormRenderCheckboxes() {
        // Use a test theme to convert multi-select elements into checkboxes.
        \Drupal::service('theme_installer')->install([
            'views_test_checkboxes_theme',
        ]);
        $this->config('system.theme')
            ->set('default', 'views_test_checkboxes_theme')
            ->save();
        // Only display 5 items per page so we can test that paging works.
        $view = Views::getView('test_exposed_form_checkboxes');
        $display =& $view->storage
            ->getDisplay('default');
        $display['display_options']['pager']['options']['items_per_page'] = 5;
        $view->save();
        $this->drupalGet('test_exposed_form_checkboxes');
        $actual = $this->xpath('//form//input[@type="checkbox" and @name="type[article]"]');
        $this->assertCount(1, $actual, 'Article option renders as a checkbox.');
        $actual = $this->xpath('//form//input[@type="checkbox" and @name="type[page]"]');
        $this->assertCount(1, $actual, 'Page option renders as a checkbox');
        // Ensure that all results are displayed.
        $rows = $this->xpath("//div[contains(@class, 'views-row')]");
        $this->assertCount(5, $rows, '5 rows are displayed by default on the first page when no options are checked.');
        $this->clickLink('Page 2');
        $rows = $this->xpath("//div[contains(@class, 'views-row')]");
        $this->assertCount(1, $rows, '1 row is displayed by default on the second page when no options are checked.');
        $this->assertNoText('An illegal choice has been detected. Please contact the site administrator.');
    }
    
    /**
     * Tests that "is all of" filters work with checkboxes.
     */
    public function testExposedIsAllOfFilter() {
        foreach ([
            'Term 1',
            'Term 2',
            'Term 3',
        ] as $term_name) {
            // Add a few terms to the new vocabulary.
            $term = Term::create([
                'name' => $term_name,
                'vid' => $this->vocabulary
                    ->id(),
            ]);
            $term->save();
            $this->terms[] = $term;
        }
        // Create a field.
        $field_name = mb_strtolower($this->randomMachineName());
        $handler_settings = [
            'target_bundles' => [
                $this->vocabulary
                    ->id() => $this->vocabulary
                    ->id(),
            ],
            'auto_create' => FALSE,
        ];
        $this->createEntityReferenceField('node', 'article', $field_name, NULL, 'taxonomy_term', 'default', $handler_settings, FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);
        // Add some test nodes.
        $this->createNode([
            'type' => 'article',
            $field_name => [
                $this->terms[0]
                    ->id(),
                $this->terms[1]
                    ->id(),
            ],
        ]);
        $this->createNode([
            'type' => 'article',
            $field_name => [
                $this->terms[0]
                    ->id(),
                $this->terms[2]
                    ->id(),
            ],
        ]);
        // Use a test theme to convert multi-select elements into checkboxes.
        \Drupal::service('theme_installer')->install([
            'views_test_checkboxes_theme',
        ]);
        $this->config('system.theme')
            ->set('default', 'views_test_checkboxes_theme')
            ->save();
        $this->drupalGet('test_exposed_form_checkboxes');
        // Ensure that all results are displayed.
        $rows = $this->xpath("//div[contains(@class, 'views-row')]");
        $this->assertCount(8, $rows, 'All rows are displayed by default on the first page when no options are checked.');
        $this->assertNoText('An illegal choice has been detected. Please contact the site administrator.');
        // Select one option and ensure we still have results.
        $tid = $this->terms[0]
            ->id();
        $this->drupalPostForm(NULL, [
            "tid[{$tid}]" => $tid,
        ], t('Apply'));
        // Ensure only nodes tagged with $tid are displayed.
        $rows = $this->xpath("//div[contains(@class, 'views-row')]");
        $this->assertCount(2, $rows, 'Correct rows are displayed when a tid is selected.');
        $this->assertNoText('An illegal choice has been detected. Please contact the site administrator.');
    }

}