Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/field/src/Tests/FieldTestBase.php

@@ -0,0 +1,66 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\field\Tests\FieldTestBase.
+ */
+
+namespace Drupal\field\Tests;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\simpletest\WebTestBase;
+
+/**
+ * Parent class for Field API tests.
+ */
+abstract class FieldTestBase extends WebTestBase {
+
+  /**
+   * Generate random values for a field_test field.
+   *
+   * @param $cardinality
+   *   Number of values to generate.
+   * @return
+   *  An array of random values, in the format expected for field values.
+   */
+  function _generateTestFieldValues($cardinality) {
+    $values = array();
+    for ($i = 0; $i < $cardinality; $i++) {
+      // field_test fields treat 0 as 'empty value'.
+      $values[$i]['value'] = mt_rand(1, 127);
+    }
+    return $values;
+  }
+
+  /**
+   * Assert that a field has the expected values in an entity.
+   *
+   * This function only checks a single column in the field values.
+   *
+   * @param EntityInterface $entity
+   *   The entity to test.
+   * @param $field_name
+   *   The name of the field to test
+   * @param $expected_values
+   *   The array of expected values.
+   * @param $langcode
+   *   (Optional) The language code for the values. Defaults to
+   *   \Drupal\Core\Language\LanguageInterface::LANGCODE_NOT_SPECIFIED.
+   * @param $column
+   *   (Optional) The name of the column to check. Defaults to 'value'.
+   */
+  function assertFieldValues(EntityInterface $entity, $field_name, $expected_values, $langcode = LanguageInterface::LANGCODE_NOT_SPECIFIED, $column = 'value') {
+    // Re-load the entity to make sure we have the latest changes.
+    \Drupal::entityManager()->getStorage($entity->getEntityTypeId())->resetCache(array($entity->id()));
+    $e = entity_load($entity->getEntityTypeId(), $entity->id());
+    $field = $values = $e->getTranslation($langcode)->$field_name;
+    // Filter out empty values so that they don't mess with the assertions.
+    $field->filterEmptyItems();
+    $values = $field->getValue();
+    $this->assertEqual(count($values), count($expected_values), 'Expected number of values were saved.');
+    foreach ($expected_values as $key => $value) {
+      $this->assertEqual($values[$key][$column], $value, format_string('Value @value was saved correctly.', array('@value' => $value)));
+    }
+  }
+}