class BlockLanguageCacheTest

class BlockLanguageCacheTest extends BrowserTestBase {
    
    /**
     * Modules to install.
     *
     * @var array
     */
    protected static $modules = [
        'block',
        'language',
        'menu_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * List of langcodes.
     *
     * @var array
     */
    protected $langcodes = [];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Create test languages.
        $this->langcodes = [
            ConfigurableLanguage::load('en'),
        ];
        for ($i = 1; $i < 3; ++$i) {
            $language = ConfigurableLanguage::create([
                'id' => 'l' . $i,
                'label' => $this->randomString(),
            ]);
            $language->save();
            $this->langcodes[$i] = $language;
        }
    }
    
    /**
     * Creates a block in a language, check blocks page in all languages.
     */
    public function testBlockLinks() {
        // Create admin user to be able to access block admin.
        $admin_user = $this->drupalCreateUser([
            'administer blocks',
            'access administration pages',
            'administer menu',
        ]);
        $this->drupalLogin($admin_user);
        // Create the block cache for all languages.
        foreach ($this->langcodes as $langcode) {
            $this->drupalGet('admin/structure/block', [
                'language' => $langcode,
            ]);
            $this->clickLink('Place block');
        }
        // Create a menu in the default language.
        $edit['label'] = $this->randomMachineName();
        $edit['id'] = mb_strtolower($edit['label']);
        $this->drupalGet('admin/structure/menu/add');
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains('Menu ' . $edit['label'] . ' has been added.');
        // Check that the block is listed for all languages.
        foreach ($this->langcodes as $langcode) {
            $this->drupalGet('admin/structure/block', [
                'language' => $langcode,
            ]);
            $this->clickLink('Place block');
            $this->assertSession()
                ->pageTextContains($edit['label']);
        }
    }

}