function BlockCacheTest::testCachePerRole

Tests "user.roles" cache context.

File

core/modules/block/tests/src/Functional/BlockCacheTest.php, line 83

Class

BlockCacheTest

Tests block caching.

Namespace

Code

public function testCachePerRole() : void {
  \Drupal::state()->set('block_test.cache_contexts', [
    'user.roles',
  ]);
  // Enable our test block. Set some content for it to display.
  $current_content = $this->randomMachineName();
  \Drupal::keyValue('block_test')->set('content', $current_content);
  $this->drupalLogin($this->normalUser);
  $this->drupalGet('');
  $this->assertSession()
    ->pageTextContains($current_content);
  // Change the content, but the cached copy should still be served.
  $old_content = $current_content;
  $current_content = $this->randomMachineName();
  \Drupal::keyValue('block_test')->set('content', $current_content);
  $this->drupalGet('');
  $this->assertSession()
    ->pageTextContains($old_content);
  // Clear the cache and verify that the stale data is no longer there.
  Cache::invalidateTags([
    'block_view',
  ]);
  $this->drupalGet('');
  $this->assertSession()
    ->pageTextNotContains($old_content);
  // Fresh block content is displayed after clearing the cache.
  $this->assertSession()
    ->pageTextContains($current_content);
  // Test whether the cached data is served for the correct users.
  $old_content = $current_content;
  $current_content = $this->randomMachineName();
  \Drupal::keyValue('block_test')->set('content', $current_content);
  $this->drupalLogout();
  $this->drupalGet('');
  // Anonymous user does not see content cached per-role for normal user.
  $this->assertSession()
    ->pageTextNotContains($old_content);
  // User with the same roles sees per-role cached content.
  $this->drupalLogin($this->normalUserAlt);
  $this->drupalGet('');
  $this->assertSession()
    ->pageTextContains($old_content);
  // Admin user does not see content cached per-role for normal user.
  $this->drupalLogin($this->adminUser);
  $this->drupalGet('');
  $this->assertSession()
    ->pageTextNotContains($old_content);
  // Block is served from the per-role cache.
  $this->drupalLogin($this->normalUser);
  $this->drupalGet('');
  $this->assertSession()
    ->pageTextContains($old_content);
}