Version 1

[yaffs-website] / web / core / modules / views / tests / src / Kernel / Handler / SortRandomTest.php

diff --git a/web/core/modules/views/tests/src/Kernel/Handler/SortRandomTest.php b/web/core/modules/views/tests/src/Kernel/Handler/SortRandomTest.php
new file mode 100644 (file)
index 0000000..941ed8d
--- /dev/null
+++ b/web/core/modules/views/tests/src/Kernel/Handler/SortRandomTest.php
@@ -0,0 +1,139 @@
+<?php
+
+namespace Drupal\Tests\views\Kernel\Handler;
+
+use Drupal\Core\Cache\Cache;
+use Drupal\views\Plugin\views\display\DisplayPluginBase;
+use Drupal\Tests\views\Kernel\ViewsKernelTestBase;
+use Drupal\views\Views;
+
+/**
+ * Tests for core Drupal\views\Plugin\views\sort\Random handler.
+ *
+ * @group views
+ */
+class SortRandomTest extends ViewsKernelTestBase {
+
+  /**
+   * Views used by this test.
+   *
+   * @var array
+   */
+  public static $testViews = ['test_view'];
+
+  /**
+   * Add more items to the test set, to make the order tests more robust.
+   *
+   * In total we have then 60 entries, which makes a probability of a collision
+   * of 1/60!, which is around 1/1E80, which is higher than the estimated amount
+   * of protons / electrons in the observable universe, also called the
+   * eddington number.
+   *
+   * @see http://wikipedia.org/wiki/Eddington_number
+   */
+  protected function dataSet() {
+    $data = parent::dataSet();
+    for ($i = 0; $i < 55; $i++) {
+      $data[] = [
+        'name' => 'name_' . $i,
+        'age' => $i,
+        'job' => 'job_' . $i,
+        'created' => rand(0, time()),
+        'status' => 1,
+      ];
+    }
+    return $data;
+  }
+
+  /**
+   * Return a basic view with random ordering.
+   */
+  protected function getBasicRandomView() {
+    $view = Views::getView('test_view');
+    $view->setDisplay();
+
+    // Add a random ordering.
+    $view->displayHandlers->get('default')->overrideOption('sorts', [
+      'random' => [
+        'id' => 'random',
+        'field' => 'random',
+        'table' => 'views',
+      ],
+    ]);
+
+    return $view;
+  }
+
+  /**
+   * Tests random ordering of the result set.
+   *
+   * @see DatabaseSelectTestCase::testRandomOrder()
+   */
+  public function testRandomOrdering() {
+    // Execute a basic view first.
+    $view = Views::getView('test_view');
+    $this->executeView($view);
+
+    // Verify the result.
+    $this->assertEqual(count($this->dataSet()), count($view->result), 'The number of returned rows match.');
+    $this->assertIdenticalResultset($view, $this->dataSet(), [
+      'views_test_data_name' => 'name',
+      'views_test_data_age' => 'age',
+    ]);
+
+    // Execute a random view, we expect the result set to be different.
+    $view_random = $this->getBasicRandomView();
+    $this->executeView($view_random);
+    $this->assertEqual(count($this->dataSet()), count($view_random->result), 'The number of returned rows match.');
+    $this->assertNotIdenticalResultset($view_random, $view->result, [
+      'views_test_data_name' => 'views_test_data_name',
+      'views_test_data_age' => 'views_test_data_name',
+    ]);
+
+    // Execute a second random view, we expect the result set to be different again.
+    $view_random_2 = $this->getBasicRandomView();
+    $this->executeView($view_random_2);
+    $this->assertEqual(count($this->dataSet()), count($view_random_2->result), 'The number of returned rows match.');
+    $this->assertNotIdenticalResultset($view_random, $view->result, [
+      'views_test_data_name' => 'views_test_data_name',
+      'views_test_data_age' => 'views_test_data_name',
+    ]);
+  }
+
+  /**
+   * Tests random ordering with tags based caching.
+   *
+   * The random sorting should opt out of caching by defining a max age of 0.
+   * At the same time, the row render caching still works.
+   */
+  public function testRandomOrderingWithRenderCaching() {
+    $view_random = $this->getBasicRandomView();
+
+    $display = &$view_random->storage->getDisplay('default');
+    $display['display_options']['cache'] = [
+      'type' => 'tag',
+    ];
+
+    $view_random->storage->save();
+
+    /** @var \Drupal\Core\Render\RendererInterface $renderer */
+    $renderer = \Drupal::service('renderer');
+    /** @var \Drupal\Core\Render\RenderCacheInterface $render_cache */
+    $render_cache = \Drupal::service('render_cache');
+
+    $original = $build = DisplayPluginBase::buildBasicRenderable($view_random->id(), 'default');
+    $result = $renderer->renderPlain($build);
+
+    $original['#cache'] += ['contexts' => []];
+    $original['#cache']['contexts'] = Cache::mergeContexts($original['#cache']['contexts'], $this->container->getParameter('renderer.config')['required_cache_contexts']);
+
+    $this->assertFalse($render_cache->get($original), 'Ensure there is no render cache entry.');
+
+    $build = DisplayPluginBase::buildBasicRenderable($view_random->id(), 'default');
+    $result2 = $renderer->renderPlain($build);
+
+    // Ensure that the random ordering works and don't produce the same result.
+    $this->assertNotEqual($result, $result2);
+  }
+
+}