diff core/modules/block/tests/src/Functional/BlockCacheTest.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/block/tests/src/Functional/BlockCacheTest.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,215 @@
+<?php
+
+namespace Drupal\Tests\block\Functional;
+
+use Drupal\Core\Cache\Cache;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests block caching.
+ *
+ * @group block
+ */
+class BlockCacheTest extends BrowserTestBase {
+
+  /**
+   * Modules to install.
+   *
+   * @var array
+   */
+  public static $modules = ['block', 'block_test', 'test_page_test'];
+
+  /**
+   * A user with permission to create and edit books and to administer blocks.
+   *
+   * @var object
+   */
+  protected $adminUser;
+
+  /**
+   * An authenticated user to test block caching.
+   *
+   * @var object
+   */
+  protected $normalUser;
+
+  /**
+   * Another authenticated user to test block caching.
+   *
+   * @var object
+   */
+  protected $normalUserAlt;
+
+  /**
+   * The block used by this test.
+   *
+   * @var \Drupal\block\BlockInterface
+   */
+  protected $block;
+
+  protected function setUp() {
+    parent::setUp();
+
+    // Create an admin user, log in and enable test blocks.
+    $this->adminUser = $this->drupalCreateUser(['administer blocks', 'access administration pages']);
+    $this->drupalLogin($this->adminUser);
+
+    // Create additional users to test caching modes.
+    $this->normalUser = $this->drupalCreateUser();
+    $this->normalUserAlt = $this->drupalCreateUser();
+    // Sync the roles, since drupalCreateUser() creates separate roles for
+    // the same permission sets.
+    $this->normalUserAlt->roles = $this->normalUser->getRoles();
+    $this->normalUserAlt->save();
+
+    // Enable our test block.
+    $this->block = $this->drupalPlaceBlock('test_cache');
+  }
+
+  /**
+   * Test "user.roles" cache context.
+   */
+  public function testCachePerRole() {
+    \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::state()->set('block_test.content', $current_content);
+    $this->drupalLogin($this->normalUser);
+    $this->drupalGet('');
+    $this->assertText($current_content, 'Block content displays.');
+
+    // Change the content, but the cached copy should still be served.
+    $old_content = $current_content;
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+    $this->drupalGet('');
+    $this->assertText($old_content, 'Block is served from the cache.');
+
+    // Clear the cache and verify that the stale data is no longer there.
+    Cache::invalidateTags(['block_view']);
+    $this->drupalGet('');
+    $this->assertNoText($old_content, 'Block cache clear removes stale cache data.');
+    $this->assertText($current_content, 'Fresh block content is displayed after clearing the cache.');
+
+    // Test whether the cached data is served for the correct users.
+    $old_content = $current_content;
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+    $this->drupalLogout();
+    $this->drupalGet('');
+    $this->assertNoText($old_content, 'Anonymous user does not see content cached per-role for normal user.');
+
+    $this->drupalLogin($this->normalUserAlt);
+    $this->drupalGet('');
+    $this->assertText($old_content, 'User with the same roles sees per-role cached content.');
+
+    $this->drupalLogin($this->adminUser);
+    $this->drupalGet('');
+    $this->assertNoText($old_content, 'Admin user does not see content cached per-role for normal user.');
+
+    $this->drupalLogin($this->normalUser);
+    $this->drupalGet('');
+    $this->assertText($old_content, 'Block is served from the per-role cache.');
+  }
+
+  /**
+   * Test a cacheable block without any additional cache context.
+   */
+  public function testCachePermissions() {
+    // user.permissions is a required context, so a user with different
+    // permissions will see a different version of the block.
+    \Drupal::state()->set('block_test.cache_contexts', []);
+
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+
+    $this->drupalGet('');
+    $this->assertText($current_content, 'Block content displays.');
+
+    $old_content = $current_content;
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+
+    $this->drupalGet('user');
+    $this->assertText($old_content, 'Block content served from cache.');
+
+    $this->drupalLogout();
+    $this->drupalGet('user');
+    $this->assertText($current_content, 'Block content not served from cache.');
+  }
+
+  /**
+   * Test non-cacheable block.
+   */
+  public function testNoCache() {
+    \Drupal::state()->set('block_test.cache_max_age', 0);
+
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+
+    // If max_age = 0 has no effect, the next request would be cached.
+    $this->drupalGet('');
+    $this->assertText($current_content, 'Block content displays.');
+
+    // A cached copy should not be served.
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+    $this->drupalGet('');
+    $this->assertText($current_content, 'Maximum age of zero prevents blocks from being cached.');
+  }
+
+  /**
+   * Test "user" cache context.
+   */
+  public function testCachePerUser() {
+    \Drupal::state()->set('block_test.cache_contexts', ['user']);
+
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+    $this->drupalLogin($this->normalUser);
+
+    $this->drupalGet('');
+    $this->assertText($current_content, 'Block content displays.');
+
+    $old_content = $current_content;
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+
+    $this->drupalGet('');
+    $this->assertText($old_content, 'Block is served from per-user cache.');
+
+    $this->drupalLogin($this->normalUserAlt);
+    $this->drupalGet('');
+    $this->assertText($current_content, 'Per-user block cache is not served for other users.');
+
+    $this->drupalLogin($this->normalUser);
+    $this->drupalGet('');
+    $this->assertText($old_content, 'Per-user block cache is persistent.');
+  }
+
+  /**
+   * Test "url" cache context.
+   */
+  public function testCachePerPage() {
+    \Drupal::state()->set('block_test.cache_contexts', ['url']);
+
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+
+    $this->drupalGet('test-page');
+    $this->assertText($current_content, 'Block content displays on the test page.');
+
+    $old_content = $current_content;
+    $current_content = $this->randomMachineName();
+    \Drupal::state()->set('block_test.content', $current_content);
+
+    $this->drupalGet('user');
+    $this->assertResponse(200);
+    $this->assertNoText($old_content, 'Block content cached for the test page does not show up for the user page.');
+    $this->drupalGet('test-page');
+    $this->assertResponse(200);
+    $this->assertText($old_content, 'Block content cached for the test page.');
+  }
+
+}