Add daily email for 2024-02-08

Experimenting with Architectural Testing

source/_daily_emails/2024-02-08.md

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+---
+title: Experimenting with Architectural Testing
+date: 2024-02-08
+permalink: archive/2024/02/08/experimenting-with-architectural-testing
+snippet: |
+    Have you tried architectural testing with PHPat, Pest or a similar tool? I have been for the past few days.
+tags:
+    - software-development
+    - test-driven-development
+    - automated-testing
+    - architectural-testing
+    - php
+---
+
+{% block content %}
+[In yesterday's email][yesterday], I mentioned parallel testing and speeding up your tests by running them in parallel.
+
+Something else I've been experimenting with recently in architectural testing with PHPat.
+
+For example, ensuring classes within a namespace are `final` or not, that Controller classes all extend `ControllerBase` and have the Controller suffix in their names.
+
+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.
+
+Here's what I have so far for my [testing course codebase][atdc]:
+
+```php
+final class ArchitectureTest {
+
+  public function test_classes_should_be_final(): Rule {
+    return PHPat::rule()
+      ->classes(Selector::inNamespace('Drupal\atdc'))
+      ->shouldBeFinal();
+  }
+
+  public function test_controllers_should_extend_ControllerBase(): Rule {
+    return PHPat::rule()
+      ->classes(Selector::inNamespace('Drupal\atdc\Controller'))
+      ->shouldExtend()
+      ->classes(Selector::classname(ControllerBase::class));
+  }
+
+  public function test_controllers_should_have_the_Controller_suffix(): Rule {
+    return PHPat::rule()
+      ->classes(Selector::inNamespace('Drupal\atdc\Controller'))
+      ->shouldBeNamed(
+        classname: '/Controller$/',
+        regex: TRUE,
+      );
+  }
+
+}
+```
+
+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.
+
+[atdc]: {{site.url}}/atdc
+[yesterday]: {{site.url}}/archive/2024/02/07/running-tests-in-parallel-with-paratest
+{% endblock %}
+
+{% block cta %}
+P.S. Do you need immediate access to an expert Drupal Developer? [With my Drupal development subscription][subscription], make unlimited requests for a fixed monthly price in less time than posting to a job board!
+
+[subscription]: {{site.url}}/subscription
+{% endblock %}