oliverdavies.uk/content/node.7a90ce1b-f0d9-443b-b143-b82562fef529.yml

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title:
  - value: |
      Finding the best test base
created:
  - value: '2023-11-27T00:00:00+00:00'
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  - value: |
      <p>As well as different base classes for types of tests - i.e. functional, kernel and unit - there are other test base classes within those that can be used to simplify things.</p>

      <p>For example, if we have this test:</p>

      <pre><code class="language-php">&lt;?php

      namespace Drupal\Tests\example\Kernel;

      use Drupal\KernelTests\KernelTestBase;
      use Drupal\Tests\node\Traits\NodeCreationTrait;
      use Drupal\Tests\user\Traits\UserCreationTrait;

      class ExampleTest extends KernelTestBase {

        use NodeCreationTrait;
        use UserCreationTrait;

        protected static $modules = [
          'node',
          'user',
        ];

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

          $this-&gt;installEntitySchema(entity_type_id: 'node');
          $this-&gt;installEntitySchema(entity_type_id: 'user');
        }

        public function testExample(): void {
          $user = $this-&gt;createUser();

          $article = $this-&gt;createNode([
            'title' =&gt; 'Test article',
            'uid' =&gt; $user,
          ]);

          self::assertSame('1', $article-&gt;getOwnerId());
        }

      }
      </code></pre>

      <p>Both creation traits must be imported, the <code>node</code> and <code>user</code> modules must be enabled, and the entity tables must be installed.</p>

      <p>When writing a lot of tests, this can result in duplication and more complex tests that take longer to write.</p>

      <p>This can be simplified using <code>EntityKernelTestBase</code> instead of <code>KernelTestBase</code>:</p>

      <pre><code class="language-php">&lt;?php

      use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
      use Drupal\Tests\node\Traits\NodeCreationTrait;

      class ExampleTest extends EntityKernelTestBase {

        use NodeCreationTrait;

        protected static $modules = [
          'node',
        ];

        public function testExample(): void {
          $user = $this-&gt;createUser();

          $article = $this-&gt;createNode([
            'title' =&gt; 'Test article',
            'uid' =&gt; $user,
          ]);

          self::assertSame('1', $article-&gt;getOwnerId());
        }

      }
      </code></pre>

      <p>The class is simpler, fewer modules must be specified, and the entity schemas are automatically installed.</p>

      <p>As well as the core modules, some contrib modules also provide their own base test cases.</p>

      <p>If you're using the Webform module, you may want to use <code>WebformAccessTestBase</code> instead of the standard <code>UnitTestCase</code>.</p>

      <p>It's definitely worth spending some time looking at what base test cases are available and which are the best ones to use for your own tests.</p>

              
    format: full_html
    processed: |
      <p>As well as different base classes for types of tests - i.e. functional, kernel and unit - there are other test base classes within those that can be used to simplify things.</p>

      <p>For example, if we have this test:</p>

      <pre><code class="language-php">&lt;?php

      namespace Drupal\Tests\example\Kernel;

      use Drupal\KernelTests\KernelTestBase;
      use Drupal\Tests\node\Traits\NodeCreationTrait;
      use Drupal\Tests\user\Traits\UserCreationTrait;

      class ExampleTest extends KernelTestBase {

        use NodeCreationTrait;
        use UserCreationTrait;

        protected static $modules = [
          'node',
          'user',
        ];

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

          $this-&gt;installEntitySchema(entity_type_id: 'node');
          $this-&gt;installEntitySchema(entity_type_id: 'user');
        }

        public function testExample(): void {
          $user = $this-&gt;createUser();

          $article = $this-&gt;createNode([
            'title' =&gt; 'Test article',
            'uid' =&gt; $user,
          ]);

          self::assertSame('1', $article-&gt;getOwnerId());
        }

      }
      </code></pre>

      <p>Both creation traits must be imported, the <code>node</code> and <code>user</code> modules must be enabled, and the entity tables must be installed.</p>

      <p>When writing a lot of tests, this can result in duplication and more complex tests that take longer to write.</p>

      <p>This can be simplified using <code>EntityKernelTestBase</code> instead of <code>KernelTestBase</code>:</p>

      <pre><code class="language-php">&lt;?php

      use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
      use Drupal\Tests\node\Traits\NodeCreationTrait;

      class ExampleTest extends EntityKernelTestBase {

        use NodeCreationTrait;

        protected static $modules = [
          'node',
        ];

        public function testExample(): void {
          $user = $this-&gt;createUser();

          $article = $this-&gt;createNode([
            'title' =&gt; 'Test article',
            'uid' =&gt; $user,
          ]);

          self::assertSame('1', $article-&gt;getOwnerId());
        }

      }
      </code></pre>

      <p>The class is simpler, fewer modules must be specified, and the entity schemas are automatically installed.</p>

      <p>As well as the core modules, some contrib modules also provide their own base test cases.</p>

      <p>If you're using the Webform module, you may want to use <code>WebformAccessTestBase</code> instead of the standard <code>UnitTestCase</code>.</p>

      <p>It's definitely worth spending some time looking at what base test cases are available and which are the best ones to use for your own tests.</p>

              
    summary: null
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