class GlossaryTest

class GlossaryTest extends ViewTestBase {
    use AssertViewsCacheTagsTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests the default glossary view.
     */
    public function testGlossaryView() {
        // Create a content type and add some nodes, with a non-random title.
        $type = $this->drupalCreateContentType();
        $nodes_per_char = [
            'd' => 1,
            'r' => 4,
            'u' => 10,
            'p' => 2,
            'a' => 3,
            'l' => 6,
        ];
        $nodes_by_char = [];
        foreach ($nodes_per_char as $char => $count) {
            $setting = [
                'type' => $type->id(),
            ];
            for ($i = 0; $i < $count; $i++) {
                $node = $setting;
                $node['title'] = $char . $this->randomString(3);
                $node = $this->drupalCreateNode($node);
                $nodes_by_char[$char][] = $node;
            }
        }
        // Execute glossary view
        $view = Views::getView('glossary');
        $view->setDisplay('attachment_1');
        $view->executeDisplay('attachment_1');
        // Check that the amount of nodes per char.
        foreach ($view->result as $item) {
            $this->assertEquals($nodes_per_char[$item->title_truncated], $item->num_records);
        }
        // Enable the glossary to be displayed.
        $view->storage
            ->enable()
            ->save();
        $this->container
            ->get('router.builder')
            ->rebuildIfNeeded();
        $url = Url::fromRoute('view.glossary.page_1');
        // Verify cache tags.
        $this->assertPageCacheContextsAndTags($url, [
            'timezone',
            'languages:' . LanguageInterface::TYPE_CONTENT,
            'languages:' . LanguageInterface::TYPE_INTERFACE,
            'theme',
            'url',
            'user.node_grants:view',
            'user.permissions',
            'route',
        ], [
            'config:views.view.glossary',
            // Listed for letter 'a'
'node:' . $nodes_by_char['a'][0]->id(),
            'node:' . $nodes_by_char['a'][1]->id(),
            'node:' . $nodes_by_char['a'][2]->id(),
            // Link for letter 'd'.
'node:1',
            // Link for letter 'p'.
'node:16',
            // Link for letter 'r'.
'node:2',
            // Link for letter 'l'.
'node:21',
            // Link for letter 'u'.
'node:6',
            'node_list',
            'user:0',
            'user_list',
            'http_response',
            'rendered',
            // FinishResponseSubscriber adds this cache tag to responses that have
            // the 'user.permissions' cache context for anonymous users.
'config:user.role.anonymous',
        ]);
        // Check the actual page response.
        $this->drupalGet($url);
        $this->assertSession()
            ->statusCodeEquals(200);
        foreach ($nodes_per_char as $char => $count) {
            $href = Url::fromRoute('view.glossary.page_1', [
                'arg_0' => $char,
            ])->toString();
            $label = mb_strtoupper($char);
            // Get the summary link for a certain character. Filter by label and href
            // to ensure that both of them are correct.
            $result = $this->assertSession()
                ->elementExists('xpath', "//a[contains(@href, '{$href}') and normalize-space(text())='{$label}']/..");
            // The rendered output looks like "<a href=''>X</a> | (count)" so let's
            // figure out the int.
            $result_count = explode(' ', trim(str_replace([
                '|',
                '(',
                ')',
            ], '', $result->getText())))[1];
            $this->assertEquals($count, $result_count, 'The expected number got rendered.');
        }
    }

}