www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/block/tests/src/Functional/BlockTest.php

   1 <?php
   2
   3 namespace Drupal\Tests\block\Functional;
   4
   5 use Drupal\Component\Utility\Html;
   6 use Drupal\block\Entity\Block;
   7 use Drupal\Core\Url;
   8 use Drupal\user\Entity\Role;
   9 use Drupal\user\RoleInterface;
  10
  11 /**
  12  * Tests basic block functionality.
  13  *
  14  * @group block
  15  */
  16 class BlockTest extends BlockTestBase {
  17
  18   /**
  19    * Tests block visibility.
  20    */
  21   public function testBlockVisibility() {
  22     $block_name = 'system_powered_by_block';
  23     // Create a random title for the block.
  24     $title = $this->randomMachineName(8);
  25     // Enable a standard block.
  26     $default_theme = $this->config('system.theme')->get('default');
  27     $edit = [
  28       'id' => strtolower($this->randomMachineName(8)),
  29       'region' => 'sidebar_first',
  30       'settings[label]' => $title,
  31       'settings[label_display]' => TRUE,
  32     ];
  33     // Set the block to be hidden on any user path, and to be shown only to
  34     // authenticated users.
  35     $edit['visibility[request_path][pages]'] = '/user*';
  36     $edit['visibility[request_path][negate]'] = TRUE;
  37     $edit['visibility[user_role][roles][' . RoleInterface::AUTHENTICATED_ID . ']'] = TRUE;
  38     $this->drupalGet('admin/structure/block/add/' . $block_name . '/' . $default_theme);
  39     $this->assertFieldChecked('edit-visibility-request-path-negate-0');
  40
  41     $this->drupalPostForm(NULL, $edit, t('Save block'));
  42     $this->assertText('The block configuration has been saved.', 'Block was saved');
  43
  44     $this->clickLink('Configure');
  45     $this->assertFieldChecked('edit-visibility-request-path-negate-1');
  46
  47     $this->drupalGet('');
  48     $this->assertText($title, 'Block was displayed on the front page.');
  49
  50     $this->drupalGet('user');
  51     $this->assertNoText($title, 'Block was not displayed according to block visibility rules.');
  52
  53     // Confirm that the block is not displayed to anonymous users.
  54     $this->drupalLogout();
  55     $this->drupalGet('');
  56     $this->assertNoText($title, 'Block was not displayed to anonymous users.');
  57
  58     // Confirm that an empty block is not displayed.
  59     $this->assertNoText('Powered by Drupal', 'Empty block not displayed.');
  60     $this->assertNoRaw('sidebar-first', 'Empty sidebar-first region is not displayed.');
  61   }
  62
  63   /**
  64    * Tests that visibility can be properly toggled.
  65    */
  66   public function testBlockToggleVisibility() {
  67     $block_name = 'system_powered_by_block';
  68     // Create a random title for the block.
  69     $title = $this->randomMachineName(8);
  70     // Enable a standard block.
  71     $default_theme = $this->config('system.theme')->get('default');
  72     $edit = [
  73       'id' => strtolower($this->randomMachineName(8)),
  74       'region' => 'sidebar_first',
  75       'settings[label]' => $title,
  76     ];
  77     $block_id = $edit['id'];
  78     // Set the block to be shown only to authenticated users.
  79     $edit['visibility[user_role][roles][' . RoleInterface::AUTHENTICATED_ID . ']'] = TRUE;
  80     $this->drupalPostForm('admin/structure/block/add/' . $block_name . '/' . $default_theme, $edit, t('Save block'));
  81     $this->clickLink('Configure');
  82     $this->assertFieldChecked('edit-visibility-user-role-roles-authenticated');
  83
  84     $edit = [
  85       'visibility[user_role][roles][' . RoleInterface::AUTHENTICATED_ID . ']' => FALSE,
  86     ];
  87     $this->drupalPostForm(NULL, $edit, 'Save block');
  88     $this->clickLink('Configure');
  89     $this->assertNoFieldChecked('edit-visibility-user-role-roles-authenticated');
  90
  91     // Ensure that no visibility is configured.
  92     /** @var \Drupal\block\BlockInterface $block */
  93     $block = Block::load($block_id);
  94     $visibility_config = $block->getVisibilityConditions()->getConfiguration();
  95     $this->assertIdentical([], $visibility_config);
  96     $this->assertIdentical([], $block->get('visibility'));
  97   }
  98
  99   /**
 100    * Test block visibility when leaving "pages" textarea empty.
 101    */
 102   public function testBlockVisibilityListedEmpty() {
 103     $block_name = 'system_powered_by_block';
 104     // Create a random title for the block.
 105     $title = $this->randomMachineName(8);
 106     // Enable a standard block.
 107     $default_theme = $this->config('system.theme')->get('default');
 108     $edit = [
 109       'id' => strtolower($this->randomMachineName(8)),
 110       'region' => 'sidebar_first',
 111       'settings[label]' => $title,
 112       'visibility[request_path][negate]' => TRUE,
 113     ];
 114     // Set the block to be hidden on any user path, and to be shown only to
 115     // authenticated users.
 116     $this->drupalPostForm('admin/structure/block/add/' . $block_name . '/' . $default_theme, $edit, t('Save block'));
 117     $this->assertText('The block configuration has been saved.', 'Block was saved');
 118
 119     $this->drupalGet('user');
 120     $this->assertNoText($title, 'Block was not displayed according to block visibility rules.');
 121
 122     $this->drupalGet('USER');
 123     $this->assertNoText($title, 'Block was not displayed according to block visibility rules regardless of path case.');
 124
 125     // Confirm that the block is not displayed to anonymous users.
 126     $this->drupalLogout();
 127     $this->drupalGet('');
 128     $this->assertNoText($title, 'Block was not displayed to anonymous users on the front page.');
 129   }
 130
 131   /**
 132    * Tests adding a block from the library page with a weight query string.
 133    */
 134   public function testAddBlockFromLibraryWithWeight() {
 135     $default_theme = $this->config('system.theme')->get('default');
 136     // Test one positive, zero, and one negative weight.
 137     foreach (['7', '0', '-9'] as $weight) {
 138       $options = [
 139         'query' => [
 140           'region' => 'sidebar_first',
 141           'weight' => $weight,
 142         ],
 143       ];
 144       $this->drupalGet(Url::fromRoute('block.admin_library', ['theme' => $default_theme], $options));
 145
 146       $block_name = 'system_powered_by_block';
 147       $add_url = Url::fromRoute('block.admin_add', [
 148         'plugin_id' => $block_name,
 149         'theme' => $default_theme,
 150       ]);
 151       $links = $this->xpath('//a[contains(@href, :href)]', [':href' => $add_url->toString()]);
 152       $this->assertEqual(1, count($links), 'Found one matching link.');
 153       $this->assertEqual(t('Place block'), $links[0]->getText(), 'Found the expected link text.');
 154
 155       list($path, $query_string) = explode('?', $links[0]->getAttribute('href'), 2);
 156       parse_str($query_string, $query_parts);
 157       $this->assertEqual($weight, $query_parts['weight'], 'Found the expected weight query string.');
 158
 159       // Create a random title for the block.
 160       $title = $this->randomMachineName(8);
 161       $block_id = strtolower($this->randomMachineName(8));
 162       $edit = [
 163         'id' => $block_id,
 164         'settings[label]' => $title,
 165       ];
 166       // Create the block using the link parsed from the library page.
 167       $this->drupalPostForm($this->getAbsoluteUrl($links[0]->getAttribute('href')), $edit, t('Save block'));
 168
 169       // Ensure that the block was created with the expected weight.
 170       /** @var \Drupal\block\BlockInterface $block */
 171       $block = Block::load($block_id);
 172       $this->assertEqual($weight, $block->getWeight(), 'Found the block with expected weight.');
 173     }
 174   }
 175
 176   /**
 177    * Test configuring and moving a module-define block to specific regions.
 178    */
 179   public function testBlock() {
 180     // Place page title block to test error messages.
 181     $this->drupalPlaceBlock('page_title_block');
 182
 183     // Disable the block.
 184     $this->drupalGet('admin/structure/block');
 185     $this->clickLink('Disable');
 186
 187     // Select the 'Powered by Drupal' block to be configured and moved.
 188     $block = [];
 189     $block['id'] = 'system_powered_by_block';
 190     $block['settings[label]'] = $this->randomMachineName(8);
 191     $block['settings[label_display]'] = TRUE;
 192     $block['theme'] = $this->config('system.theme')->get('default');
 193     $block['region'] = 'header';
 194
 195     // Set block title to confirm that interface works and override any custom titles.
 196     $this->drupalPostForm('admin/structure/block/add/' . $block['id'] . '/' . $block['theme'], ['settings[label]' => $block['settings[label]'], 'settings[label_display]' => $block['settings[label_display]'], 'id' => $block['id'], 'region' => $block['region']], t('Save block'));
 197     $this->assertText(t('The block configuration has been saved.'), 'Block title set.');
 198     // Check to see if the block was created by checking its configuration.
 199     $instance = Block::load($block['id']);
 200
 201     $this->assertEqual($instance->label(), $block['settings[label]'], 'Stored block title found.');
 202
 203     // Check whether the block can be moved to all available regions.
 204     foreach ($this->regions as $region) {
 205       $this->moveBlockToRegion($block, $region);
 206     }
 207
 208     // Disable the block.
 209     $this->drupalGet('admin/structure/block');
 210     $this->clickLink('Disable');
 211
 212     // Confirm that the block is now listed as disabled.
 213     $this->assertText(t('The block settings have been updated.'), 'Block successfully moved to disabled region.');
 214
 215     // Confirm that the block instance title and markup are not displayed.
 216     $this->drupalGet('node');
 217     $this->assertNoText(t($block['settings[label]']));
 218     // Check for <div id="block-my-block-instance-name"> if the machine name
 219     // is my_block_instance_name.
 220     $xpath = $this->buildXPathQuery('//div[@id=:id]/*', [':id' => 'block-' . str_replace('_', '-', strtolower($block['id']))]);
 221     $this->assertNoFieldByXPath($xpath, FALSE, 'Block found in no regions.');
 222
 223     // Test deleting the block from the edit form.
 224     $this->drupalGet('admin/structure/block/manage/' . $block['id']);
 225     $this->clickLink(t('Remove block'));
 226     $this->assertRaw(t('Are you sure you want to remove the block @name?', ['@name' => $block['settings[label]']]));
 227     $this->drupalPostForm(NULL, [], t('Remove'));
 228     $this->assertRaw(t('The block %name has been removed.', ['%name' => $block['settings[label]']]));
 229
 230     // Test deleting a block via "Configure block" link.
 231     $block = $this->drupalPlaceBlock('system_powered_by_block');
 232     $this->drupalGet('admin/structure/block/manage/' . $block->id(), ['query' => ['destination' => 'admin']]);
 233     $this->clickLink(t('Remove block'));
 234     $this->assertRaw(t('Are you sure you want to remove the block @name?', ['@name' => $block->label()]));
 235     $this->drupalPostForm(NULL, [], t('Remove'));
 236     $this->assertRaw(t('The block %name has been removed.', ['%name' => $block->label()]));
 237     $this->assertUrl('admin');
 238     $this->assertNoRaw($block->id());
 239   }
 240
 241   /**
 242    * Tests the block operation links.
 243    */
 244   public function testBlockOperationLinks() {
 245     $this->drupalGet('admin/structure/block');
 246     // Go to the select block form.
 247     $this->clickLink('Place block');
 248     // Select the first available block.
 249     $this->clickLink('Place block');
 250     // Finally place the block
 251     $this->submitForm([], 'Save block');
 252
 253     $url = $this->getUrl();
 254     $parsed = parse_url($url);
 255     $this->assertContains('block-placement', $parsed['query']);
 256
 257     $this->clickLink('Remove');
 258     $this->submitForm([], 'Remove');
 259
 260     $url = $this->getUrl();
 261     $parsed = parse_url($url);
 262     $this->assertTrue(empty($parsed['query']));
 263   }
 264
 265   /**
 266    * Tests that the block form has a theme selector when not passed via the URL.
 267    */
 268   public function testBlockThemeSelector() {
 269     // Install all themes.
 270     \Drupal::service('theme_handler')->install(['bartik', 'seven', 'stark']);
 271     $theme_settings = $this->config('system.theme');
 272     foreach (['bartik', 'seven', 'stark'] as $theme) {
 273       $this->drupalGet('admin/structure/block/list/' . $theme);
 274       $this->assertTitle(t('Block layout') . ' | Drupal');
 275       // Select the 'Powered by Drupal' block to be placed.
 276       $block = [];
 277       $block['id'] = strtolower($this->randomMachineName());
 278       $block['theme'] = $theme;
 279       $block['region'] = 'content';
 280       $this->drupalPostForm('admin/structure/block/add/system_powered_by_block', $block, t('Save block'));
 281       $this->assertText(t('The block configuration has been saved.'));
 282       $this->assertUrl('admin/structure/block/list/' . $theme . '?block-placement=' . Html::getClass($block['id']));
 283
 284       // Set the default theme and ensure the block is placed.
 285       $theme_settings->set('default', $theme)->save();
 286       $this->drupalGet('');
 287       $elements = $this->xpath('//div[@id = :id]', [':id' => Html::getUniqueId('block-' . $block['id'])]);
 288       $this->assertTrue(!empty($elements), 'The block was found.');
 289     }
 290   }
 291
 292   /**
 293    * Test block display of theme titles.
 294    */
 295   public function testThemeName() {
 296     // Enable the help block.
 297     $this->drupalPlaceBlock('help_block', ['region' => 'help']);
 298     $this->drupalPlaceBlock('local_tasks_block');
 299     // Explicitly set the default and admin themes.
 300     $theme = 'block_test_specialchars_theme';
 301     \Drupal::service('theme_handler')->install([$theme]);
 302     \Drupal::service('router.builder')->rebuild();
 303     $this->drupalGet('admin/structure/block');
 304     $this->assertEscaped('<"Cat" & \'Mouse\'>');
 305     $this->drupalGet('admin/structure/block/list/block_test_specialchars_theme');
 306     $this->assertEscaped('Demonstrate block regions (<"Cat" & \'Mouse\'>)');
 307   }
 308
 309   /**
 310    * Test block title display settings.
 311    */
 312   public function testHideBlockTitle() {
 313     $block_name = 'system_powered_by_block';
 314     // Create a random title for the block.
 315     $title = $this->randomMachineName(8);
 316     $id = strtolower($this->randomMachineName(8));
 317     // Enable a standard block.
 318     $default_theme = $this->config('system.theme')->get('default');
 319     $edit = [
 320       'id' => $id,
 321       'region' => 'sidebar_first',
 322       'settings[label]' => $title,
 323     ];
 324     $this->drupalPostForm('admin/structure/block/add/' . $block_name . '/' . $default_theme, $edit, t('Save block'));
 325     $this->assertText('The block configuration has been saved.', 'Block was saved');
 326
 327     $this->drupalGet('user');
 328     $this->assertNoText($title, 'Block title was not displayed by default.');
 329
 330     $edit = [
 331       'settings[label_display]' => TRUE,
 332     ];
 333     $this->drupalPostForm('admin/structure/block/manage/' . $id, $edit, t('Save block'));
 334     $this->assertText('The block configuration has been saved.', 'Block was saved');
 335
 336     $this->drupalGet('admin/structure/block/manage/' . $id);
 337     $this->assertFieldChecked('edit-settings-label-display', 'The display_block option has the correct default value on the configuration form.');
 338
 339     $this->drupalGet('user');
 340     $this->assertText($title, 'Block title was displayed when enabled.');
 341   }
 342
 343   /**
 344    * Moves a block to a given region via the UI and confirms the result.
 345    *
 346    * @param array $block
 347    *   An array of information about the block, including the following keys:
 348    *   - module: The module providing the block.
 349    *   - title: The title of the block.
 350    *   - delta: The block's delta key.
 351    * @param string $region
 352    *   The machine name of the theme region to move the block to, for example
 353    *   'header' or 'sidebar_first'.
 354    */
 355   public function moveBlockToRegion(array $block, $region) {
 356     // Set the created block to a specific region.
 357     $block += ['theme' => $this->config('system.theme')->get('default')];
 358     $edit = [];
 359     $edit['blocks[' . $block['id'] . '][region]'] = $region;
 360     $this->drupalPostForm('admin/structure/block', $edit, t('Save blocks'));
 361
 362     // Confirm that the block was moved to the proper region.
 363     $this->assertText(t('The block settings have been updated.'), format_string('Block successfully moved to %region_name region.', ['%region_name' => $region]));
 364
 365     // Confirm that the block is being displayed.
 366     $this->drupalGet('');
 367     $this->assertText(t($block['settings[label]']), 'Block successfully being displayed on the page.');
 368
 369     // Confirm that the custom block was found at the proper region.
 370     $xpath = $this->buildXPathQuery('//div[@class=:region-class]//div[@id=:block-id]/*', [
 371       ':region-class' => 'region region-' . Html::getClass($region),
 372       ':block-id' => 'block-' . str_replace('_', '-', strtolower($block['id'])),
 373     ]);
 374     $this->assertFieldByXPath($xpath, NULL, t('Block found in %region_name region.', ['%region_name' => Html::getClass($region)]));
 375   }
 376
 377   /**
 378    * Test that cache tags are properly set and bubbled up to the page cache.
 379    *
 380    * Verify that invalidation of these cache tags works:
 381    * - "block:<block ID>"
 382    * - "block_plugin:<block plugin ID>"
 383    */
 384   public function testBlockCacheTags() {
 385     // The page cache only works for anonymous users.
 386     $this->drupalLogout();
 387
 388     // Enable page caching.
 389     $config = $this->config('system.performance');
 390     $config->set('cache.page.max_age', 300);
 391     $config->save();
 392
 393     // Place the "Powered by Drupal" block.
 394     $block = $this->drupalPlaceBlock('system_powered_by_block', ['id' => 'powered']);
 395
 396     // Prime the page cache.
 397     $this->drupalGet('<front>');
 398     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
 399
 400     // Verify a cache hit, but also the presence of the correct cache tags in
 401     // both the page and block caches.
 402     $this->drupalGet('<front>');
 403     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
 404     $cid_parts = [\Drupal::url('<front>', [], ['absolute' => TRUE]), 'html'];
 405     $cid = implode(':', $cid_parts);
 406     $cache_entry = \Drupal::cache('page')->get($cid);
 407     $expected_cache_tags = [
 408       'config:block_list',
 409       'block_view',
 410       'config:block.block.powered',
 411       'config:user.role.anonymous',
 412       'http_response',
 413       'rendered',
 414     ];
 415     sort($expected_cache_tags);
 416     $keys = \Drupal::service('cache_contexts_manager')->convertTokensToKeys(['languages:language_interface', 'theme', 'user.permissions'])->getKeys();
 417     $this->assertIdentical($cache_entry->tags, $expected_cache_tags);
 418     $cache_entry = \Drupal::cache('render')->get('entity_view:block:powered:' . implode(':', $keys));
 419     $expected_cache_tags = [
 420       'block_view',
 421       'config:block.block.powered',
 422       'rendered',
 423     ];
 424     sort($expected_cache_tags);
 425     $this->assertIdentical($cache_entry->tags, $expected_cache_tags);
 426
 427     // The "Powered by Drupal" block is modified; verify a cache miss.
 428     $block->setRegion('content');
 429     $block->save();
 430     $this->drupalGet('<front>');
 431     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
 432
 433     // Now we should have a cache hit again.
 434     $this->drupalGet('<front>');
 435     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
 436
 437     // Place the "Powered by Drupal" block another time; verify a cache miss.
 438     $block_2 = $this->drupalPlaceBlock('system_powered_by_block', ['id' => 'powered-2']);
 439     $this->drupalGet('<front>');
 440     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
 441
 442     // Verify a cache hit, but also the presence of the correct cache tags.
 443     $this->drupalGet('<front>');
 444     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
 445     $cid_parts = [\Drupal::url('<front>', [], ['absolute' => TRUE]), 'html'];
 446     $cid = implode(':', $cid_parts);
 447     $cache_entry = \Drupal::cache('page')->get($cid);
 448     $expected_cache_tags = [
 449       'config:block_list',
 450       'block_view',
 451       'config:block.block.powered',
 452       'config:block.block.powered-2',
 453       'config:user.role.anonymous',
 454       'http_response',
 455       'rendered',
 456     ];
 457     sort($expected_cache_tags);
 458     $this->assertEqual($cache_entry->tags, $expected_cache_tags);
 459     $expected_cache_tags = [
 460       'block_view',
 461       'config:block.block.powered',
 462       'rendered',
 463     ];
 464     sort($expected_cache_tags);
 465     $keys = \Drupal::service('cache_contexts_manager')->convertTokensToKeys(['languages:language_interface', 'theme', 'user.permissions'])->getKeys();
 466     $cache_entry = \Drupal::cache('render')->get('entity_view:block:powered:' . implode(':', $keys));
 467     $this->assertIdentical($cache_entry->tags, $expected_cache_tags);
 468     $expected_cache_tags = [
 469       'block_view',
 470       'config:block.block.powered-2',
 471       'rendered',
 472     ];
 473     sort($expected_cache_tags);
 474     $keys = \Drupal::service('cache_contexts_manager')->convertTokensToKeys(['languages:language_interface', 'theme', 'user.permissions'])->getKeys();
 475     $cache_entry = \Drupal::cache('render')->get('entity_view:block:powered-2:' . implode(':', $keys));
 476     $this->assertIdentical($cache_entry->tags, $expected_cache_tags);
 477
 478     // Now we should have a cache hit again.
 479     $this->drupalGet('<front>');
 480     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT');
 481
 482     // Delete the "Powered by Drupal" blocks; verify a cache miss.
 483     entity_delete_multiple('block', ['powered', 'powered-2']);
 484     $this->drupalGet('<front>');
 485     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'MISS');
 486   }
 487
 488   /**
 489    * Tests that a link exists to block layout from the appearance form.
 490    */
 491   public function testThemeAdminLink() {
 492     $this->drupalPlaceBlock('help_block', ['region' => 'help']);
 493     $theme_admin = $this->drupalCreateUser([
 494       'administer blocks',
 495       'administer themes',
 496       'access administration pages',
 497     ]);
 498     $this->drupalLogin($theme_admin);
 499     $this->drupalGet('admin/appearance');
 500     $this->assertText('You can place blocks for each theme on the block layout page');
 501     $this->assertLinkByHref('admin/structure/block');
 502   }
 503
 504   /**
 505    * Tests that uninstalling a theme removes its block configuration.
 506    */
 507   public function testUninstallTheme() {
 508     /** @var \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler */
 509     $theme_handler = \Drupal::service('theme_handler');
 510
 511     $theme_handler->install(['seven']);
 512     $this->config('system.theme')->set('default', 'seven')->save();
 513     $block = $this->drupalPlaceBlock('system_powered_by_block', ['theme' => 'seven', 'region' => 'help']);
 514     $this->drupalGet('<front>');
 515     $this->assertText('Powered by Drupal');
 516
 517     $this->config('system.theme')->set('default', 'classy')->save();
 518     $theme_handler->uninstall(['seven']);
 519
 520     // Ensure that the block configuration does not exist anymore.
 521     $this->assertIdentical(NULL, Block::load($block->id()));
 522   }
 523
 524   /**
 525    * Tests the block access.
 526    */
 527   public function testBlockAccess() {
 528     $this->drupalPlaceBlock('test_access', ['region' => 'help']);
 529
 530     $this->drupalGet('<front>');
 531     $this->assertNoText('Hello test world');
 532
 533     \Drupal::state()->set('test_block_access', TRUE);
 534     $this->drupalGet('<front>');
 535     $this->assertText('Hello test world');
 536   }
 537
 538   /**
 539    * Tests block_user_role_delete.
 540    */
 541   public function testBlockUserRoleDelete() {
 542     $role1 = Role::create(['id' => 'test_role1', 'name' => $this->randomString()]);
 543     $role1->save();
 544
 545     $role2 = Role::create(['id' => 'test_role2', 'name' => $this->randomString()]);
 546     $role2->save();
 547
 548     $block = Block::create([
 549       'id' => $this->randomMachineName(),
 550       'plugin' => 'system_powered_by_block',
 551     ]);
 552
 553     $block->setVisibilityConfig('user_role', [
 554       'roles' => [
 555         $role1->id() => $role1->id(),
 556         $role2->id() => $role2->id(),
 557       ],
 558     ]);
 559
 560     $block->save();
 561
 562     $this->assertEqual($block->getVisibility()['user_role']['roles'], [
 563       $role1->id() => $role1->id(),
 564       $role2->id() => $role2->id(),
 565     ]);
 566
 567     $role1->delete();
 568
 569     $block = Block::load($block->id());
 570     $this->assertEqual($block->getVisibility()['user_role']['roles'], [
 571       $role2->id() => $role2->id(),
 572     ]);
 573   }
 574
 575 }