PrepareUninstallTest.php

<?php

namespace Drupal\Tests\system\Functional\Module;

use Drupal\Tests\BrowserTestBase;
use Drupal\Tests\taxonomy\Traits\TaxonomyTestTrait;

/**
 * Tests that modules which provide entity types can be uninstalled.
 *
 * @group Module
 */
class PrepareUninstallTest extends BrowserTestBase {
    use TaxonomyTestTrait;
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * An array of node objects.
     *
     * @var \Drupal\node\NodeInterface[]
     */
    protected $nodes;
    
    /**
     * An array of taxonomy term objects.
     *
     * @var \Drupal\taxonomy\TermInterface[]
     */
    protected $terms;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'node',
        'taxonomy',
        'entity_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    public function setUp() {
        parent::setUp();
        $admin_user = $this->drupalCreateUser([
            'administer modules',
        ]);
        $this->drupalLogin($admin_user);
        // Create 10 nodes.
        for ($i = 1; $i <= 5; $i++) {
            $this->nodes[] = $this->drupalCreateNode([
                'type' => 'page',
            ]);
            $this->nodes[] = $this->drupalCreateNode([
                'type' => 'article',
            ]);
        }
        // Create 3 top-level taxonomy terms, each with 11 children.
        $vocabulary = $this->createVocabulary();
        for ($i = 1; $i <= 3; $i++) {
            $term = $this->createTerm($vocabulary);
            $this->terms[] = $term;
            for ($j = 1; $j <= 11; $j++) {
                $this->terms[] = $this->createTerm($vocabulary, [
                    'parent' => [
                        'target_id' => $term->id(),
                    ],
                ]);
            }
        }
    }
    
    /**
     * Tests that Node and Taxonomy can be uninstalled.
     */
    public function testUninstall() {
        // Check that Taxonomy cannot be uninstalled yet.
        $this->drupalGet('admin/modules/uninstall');
        $this->assertText('Remove content items');
        $this->assertLinkByHref('admin/modules/uninstall/entity/taxonomy_term');
        // Delete Taxonomy term data.
        $this->drupalGet('admin/modules/uninstall/entity/taxonomy_term');
        $term_count = count($this->terms);
        for ($i = 1; $i < 11; $i++) {
            $this->assertText($this->terms[$term_count - $i]
                ->label());
        }
        $term_count = $term_count - 10;
        $this->assertText("And {$term_count} more taxonomy terms.");
        $this->assertText('This action cannot be undone.');
        $this->assertText('Make a backup of your database if you want to be able to restore these items.');
        $this->drupalPostForm(NULL, [], t('Delete all taxonomy terms'));
        // Check that we are redirected to the uninstall page and data has been
        // removed.
        $this->assertUrl('admin/modules/uninstall', []);
        $this->assertText('All taxonomy terms have been deleted.');
        // Check that there is no more data to be deleted, Taxonomy is ready to be
        // uninstalled.
        $this->assertText('Enables the categorization of content.');
        $this->assertNoLinkByHref('admin/modules/uninstall/entity/taxonomy_term');
        // Uninstall the Taxonomy module.
        $this->drupalPostForm('admin/modules/uninstall', [
            'uninstall[taxonomy]' => TRUE,
        ], t('Uninstall'));
        $this->drupalPostForm(NULL, [], t('Uninstall'));
        $this->assertText('The selected modules have been uninstalled.');
        $this->assertNoText('Enables the categorization of content.');
        // Check Node cannot be uninstalled yet, there is content to be removed.
        $this->drupalGet('admin/modules/uninstall');
        $this->assertText('Remove content items');
        $this->assertLinkByHref('admin/modules/uninstall/entity/node');
        // Delete Node data.
        $this->drupalGet('admin/modules/uninstall/entity/node');
        // All 10 nodes should be listed.
        foreach ($this->nodes as $node) {
            $this->assertText($node->label());
        }
        // Ensures there is no more count when not necessary.
        $this->assertNoText('And 0 more content');
        $this->assertText('This action cannot be undone.');
        $this->assertText('Make a backup of your database if you want to be able to restore these items.');
        // Create another node so we have 11.
        $this->nodes[] = $this->drupalCreateNode([
            'type' => 'page',
        ]);
        $this->drupalGet('admin/modules/uninstall/entity/node');
        // Ensures singular case is used when a single entity is left after listing
        // the first 10's labels.
        $this->assertText('And 1 more content item.');
        // Create another node so we have 12.
        $this->nodes[] = $this->drupalCreateNode([
            'type' => 'article',
        ]);
        $this->drupalGet('admin/modules/uninstall/entity/node');
        // Ensures singular case is used when a single entity is left after listing
        // the first 10's labels.
        $this->assertText('And 2 more content items.');
        $this->drupalPostForm(NULL, [], t('Delete all content items'));
        // Check we are redirected to the uninstall page and data has been removed.
        $this->assertUrl('admin/modules/uninstall', []);
        $this->assertText('All content items have been deleted.');
        // Check there is no more data to be deleted, Node is ready to be
        // uninstalled.
        $this->assertText('Allows content to be submitted to the site and displayed on pages.');
        $this->assertNoLinkByHref('admin/modules/uninstall/entity/node');
        // Uninstall Node module.
        $this->drupalPostForm('admin/modules/uninstall', [
            'uninstall[node]' => TRUE,
        ], t('Uninstall'));
        $this->drupalPostForm(NULL, [], t('Uninstall'));
        $this->assertText('The selected modules have been uninstalled.');
        $this->assertNoText('Allows content to be submitted to the site and displayed on pages.');
        // Ensure a 404 is returned when accessing a non-existent entity type.
        $this->drupalGet('admin/modules/uninstall/entity/node');
        $this->assertSession()
            ->statusCodeEquals(404);
        // Test an entity type which does not have any existing entities.
        $this->drupalGet('admin/modules/uninstall/entity/entity_test_no_label');
        $this->assertText('There are 0 entity test without label entities to delete.');
        $button_xpath = '//input[@type="submit"][@value="Delete all entity test without label entities"]';
        $this->assertNoFieldByXPath($button_xpath, NULL, 'Button with value "Delete all entity test without label entities" not found');
        // Test an entity type without a label.
        
        /** @var \Drupal\Core\Entity\EntityStorageInterface $storage */
        $storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('entity_test_no_label');
        $storage->create([
            'id' => mb_strtolower($this->randomMachineName()),
            'name' => $this->randomMachineName(),
        ])
            ->save();
        $this->drupalGet('admin/modules/uninstall/entity/entity_test_no_label');
        $this->assertText('This will delete 1 entity test without label.');
        $this->assertFieldByXPath($button_xpath, NULL, 'Button with value "Delete all entity test without label entities" found');
        $storage->create([
            'id' => mb_strtolower($this->randomMachineName()),
            'name' => $this->randomMachineName(),
        ])
            ->save();
        $this->drupalGet('admin/modules/uninstall/entity/entity_test_no_label');
        $this->assertText('This will delete 2 entity test without label entities.');
    }

}