oliverdavies.uk/content/node.aa4b919c-76e4-43db-8962-2b2cacd33267.yml

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  - value: 'Experimenting with Architectural Testing'
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      <p><a href="/daily/2024/02/07/running-tests-in-parallel-with-paratest">In yesterday's email</a>, I mentioned parallel testing and speeding up your tests by running them in parallel.</p>

      <p>Something else I've been experimenting with recently in architectural testing with PHPat.</p>

      <p>For example, ensuring classes within a namespace are <code>final</code> or not, that Controller classes all extend <code>ControllerBase</code> and have the Controller suffix in their names.</p>

      <p>Going forward, I'd like to ensure that each Drupal module only uses its own classes and is separated, as I recently had an issue where I deleted a class method in one module only to find it was used in a different module.</p>

      <p>Here's what I have so far for my <a href="/atdc">testing course codebase</a>:</p>

      <pre><code class="language-php">final class ArchitectureTest {

        public function test_classes_should_be_final(): Rule {
        return PHPat::rule()
          -&gt;classes(Selector::inNamespace('Drupal\atdc'))
          -&gt;shouldBeFinal();
        }

        public function test_controllers_should_extend_ControllerBase(): Rule {
        return PHPat::rule()
          -&gt;classes(Selector::inNamespace('Drupal\atdc\Controller'))
          -&gt;shouldExtend()
          -&gt;classes(Selector::classname(ControllerBase::class));
        }

        public function test_controllers_should_have_the_Controller_suffix(): Rule {
        return PHPat::rule()
          -&gt;classes(Selector::inNamespace('Drupal\atdc\Controller'))
          -&gt;shouldBeNamed(
            classname: '/Controller$/',
            regex: TRUE,
          );
        }

      }
      </code></pre>

      <p>I plan to continue expanding this configuration as I become more familiar with PHPat, and because it's a PHPStan extension, it's already available to run within my projects locally and within the CI pipeline.</p>

              
    format: full_html
    processed: |
      <p><a href="http://default/daily/2024/02/07/running-tests-in-parallel-with-paratest">In yesterday's email</a>, I mentioned parallel testing and speeding up your tests by running them in parallel.</p>

      <p>Something else I've been experimenting with recently in architectural testing with PHPat.</p>

      <p>For example, ensuring classes within a namespace are <code>final</code> or not, that Controller classes all extend <code>ControllerBase</code> and have the Controller suffix in their names.</p>

      <p>Going forward, I'd like to ensure that each Drupal module only uses its own classes and is separated, as I recently had an issue where I deleted a class method in one module only to find it was used in a different module.</p>

      <p>Here's what I have so far for my <a href="http://default/atdc">testing course codebase</a>:</p>

      <pre><code class="language-php">final class ArchitectureTest {

        public function test_classes_should_be_final(): Rule {
        return PHPat::rule()
          -&gt;classes(Selector::inNamespace('Drupal\atdc'))
          -&gt;shouldBeFinal();
        }

        public function test_controllers_should_extend_ControllerBase(): Rule {
        return PHPat::rule()
          -&gt;classes(Selector::inNamespace('Drupal\atdc\Controller'))
          -&gt;shouldExtend()
          -&gt;classes(Selector::classname(ControllerBase::class));
        }

        public function test_controllers_should_have_the_Controller_suffix(): Rule {
        return PHPat::rule()
          -&gt;classes(Selector::inNamespace('Drupal\atdc\Controller'))
          -&gt;shouldBeNamed(
            classname: '/Controller$/',
            regex: TRUE,
          );
        }

      }
      </code></pre>

      <p>I plan to continue expanding this configuration as I become more familiar with PHPat, and because it's a PHPStan extension, it's already available to run within my projects locally and within the CI pipeline.</p>

              
    summary: null
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