Kernel Test: Programmatically create a vocabulary and add a field to it

Question

I want to add a taxonomy term and add field to it. My current code looks this way:

<?php

namespace Drupal\Tests\permissions_by_term\Kernel;

use Drupal\KernelTests\KernelTestBase;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\taxonomy\Entity\Vocabulary;

/**
 * Tests the ERR composite relationship upgrade path.
 *
 * @group permissions_by_term
 */
class SelectTermTest extends KernelTestBase {

  /**
   * {@inheritdoc}
   */
  public static $modules = array('taxonomy', 'text');

  /**
   * List of taxonomy term names by language.
   *
   * @var array
   */
  public $termNames = [];

  /**
   * The vocabulary used for creating terms.
   *
   * @var \Drupal\taxonomy\VocabularyInterface
   */
  protected $vocabulary;

  function setUp() {
    parent::setUp();

    $this->installEntitySchema('taxonomy_term');

    // Create a vocabulary.
    $this->vocabulary = Vocabulary::create([
      'name' => 'Views testing tags',
      'vid' => 'views_testing_tags',
    ]);
    $this->vocabulary->save();

    // Add a translatable field to the vocabulary.
    $field = FieldStorageConfig::create(array(
      'field_name' => 'field_foo',
      'entity_type' => 'taxonomy_term',
      'type' => 'text',
    ));
    $field->save();
    FieldConfig::create([
      'field_name' => 'field_foo',
      'entity_type' => 'taxonomy_term',
      'label' => 'Foo',
      'bundle' => 'views_testing_tags',
    ])->save();
  }

  public function testSomething() {
  }

}

If I run the test by the following command:

vendor/bin/phpunit -c modules/permissions_by_term modules/permissions_by_term/tests/src/Kernel/SelectTermTest.php

I'm getting the following output:

PHPUnit 4.8.11 by Sebastian Bergmann and contributors.

E

Time: 882 ms, Memory: 6.00Mb

There was 1 error:

1) Drupal\Tests\permissions_by_term\Kernel\SelectTermTest::testSomething Drupal\Core\Entity\Exception\NoCorrespondingEntityClassException: The Drupal\field\Entity\FieldStorageConfig class does not correspond to an entity type.

/home/peter/Websites/pbt-d8/core/lib/Drupal/Core/Entity/EntityTypeRepository.php:98 /home/peter/Websites/pbt-d8/core/lib/Drupal/Core/Entity/EntityManager.php:375 /home/peter/Websites/pbt-d8/core/lib/Drupal/Core/Entity/Entity.php:509 /home/peter/Websites/pbt-d8/modules/permissions_by_term/tests/src/Kernel/SelectTermTest.php:49

FAILURES! Tests: 1, Assertions: 1, Errors: 1.

I do not understand this part:

Drupal\Core\Entity\Exception\NoCorrespondingEntityClassException: The Drupal\field\Entity\FieldStorageConfig class does not correspond to an entity type.

As an example I have used the Drupal core taxonomy test from

core/modules/taxonomy/src/Tests/Views/TaxonomyFieldFilterTest.php

This test does what I want to do, but is not a Kernel test. It is a Simpletest, since it inherits from WebTestBase. If I use WebTestBase, it works. But the test is much slower then. Do you know what's missing in my code for running it as a Kernel Test?

Answer 1

You need to enable the field module so its entity types are present. Kernel test base does not enable required modules so the FieldConfig and FieldStorageConfig entity types don't exist until you enable the field module. Put it in the $modules property with 'taxonomy' and 'text'.

Answer 2

You should try FieldKernelTestBase instead of just KernelTestBase. There is a helper method called createFieldWithStorage who will do the job.