diff --git a/core/drupalci.yml b/core/drupalci.yml
index 7bd1ac71d2..78e3d74eef 100644
--- a/core/drupalci.yml
+++ b/core/drupalci.yml
@@ -18,7 +18,7 @@ build:
       # deprecated code.
       run_tests.phpunit:
         types: 'PHPUnit-Unit'
-        testgroups: 'image'
+        testgroups: '--all'
         suppress-deprecations: false
         halt-on-fail: false
       run_tests.kernel:
diff --git a/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandards.php b/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandards.php
new file mode 100644
index 0000000000..2527056bb4
--- /dev/null
+++ b/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandards.php
@@ -0,0 +1,75 @@
+<?php declare(strict_types=1);
+
+namespace Drupal\TestTools\PhpUnitCompatibility\PhpUnit10;
+
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\Tests\BrowserTestBase;
+use Drupal\Tests\UnitTestCase;
+use Drupal\TestTools\PhpUnitCompatibility\PhpUnit10\DrupalStandardsSubscriber\BeforeFirstTestMethodCalledSubscriber;
+use PHPUnit\Event\Facade;
+use PHPUnit\Event\Test\BeforeFirstTestMethodCalled;
+
+/**
+ * @internal
+ */
+final class DrupalStandards {
+
+  /**
+   * The singleton instance.
+   *
+   * @var self
+   */
+  private static ?self $instance = NULL;
+
+  /**
+   * @throws \PHPUnit\Event\EventFacadeIsSealedException
+   * @throws \PHPUnit\Util\Exception
+   * @throws \PHPUnit\Event\UnknownSubscriberTypeException
+   * @throws \RuntimeException
+   */
+  private function __construct() {
+    Facade::registerSubscriber(new BeforeFirstTestMethodCalledSubscriber($this));
+  }
+
+  /**
+   * @todo
+   *
+   * @throws \PHPUnit\Event\EventFacadeIsSealedException
+   * @throws \PHPUnit\Util\Exception
+   * @throws \PHPUnit\Event\UnknownSubscriberTypeException
+   * @throws \RuntimeException
+   */
+  public static function init(): void {
+    if (self::$instance === NULL) {
+      self::$instance = new self();
+    }
+  }
+
+  /**
+   * @todo
+   */
+  public static function isEnabled(): bool {
+    return self::$instance !== NULL;
+  }
+
+  /**
+   * @todo
+   */
+  public function beforeFirstTestMethodCalledSubscriber(BeforeFirstTestMethodCalled $event): void {
+    // Reflect the test class.
+    $class = new \ReflectionClass($event->testClassName());
+
+    // Check for component tests extending a core test.
+    if (substr($event->testClassName(), 0, 22) == 'Drupal\Tests\Component') {
+      if ($class instanceof BrowserTestBase || $class instanceof KernelTestBase || $class instanceof UnitTestCase) {
+        throw new \LogicException('Component tests should not extend a core test base class');
+      }
+    }
+
+    // Check for incorrect visibility of the $modules property.
+    if ($class->hasProperty('modules') && !$class->getProperty('modules')->isProtected()) {
+      throw new \LogicException('The ' . $event->testClassName() . '::$modules property must be declared protected');
+    }
+  }
+
+}
diff --git a/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandardsSubscriber/BeforeFirstTestMethodCalledSubscriber.php b/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandardsSubscriber/BeforeFirstTestMethodCalledSubscriber.php
new file mode 100644
index 0000000000..bb055378ed
--- /dev/null
+++ b/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandardsSubscriber/BeforeFirstTestMethodCalledSubscriber.php
@@ -0,0 +1,17 @@
+<?php declare(strict_types=1);
+
+namespace Drupal\TestTools\PhpUnitCompatibility\PhpUnit10\DrupalStandardsSubscriber;
+
+use PHPUnit\Event\Test\BeforeFirstTestMethodCalled;
+use PHPUnit\Event\Test\BeforeFirstTestMethodCalledSubscriber as SubscriberInterface;
+
+/**
+ * @internal
+ */
+final class BeforeFirstTestMethodCalledSubscriber extends Subscriber implements SubscriberInterface {
+
+  public function notify(BeforeFirstTestMethodCalled $event): void {
+    $this->standards()->beforeFirstTestMethodCalledSubscriber($event);
+  }
+
+}
diff --git a/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandardsSubscriber/Subscriber.php b/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandardsSubscriber/Subscriber.php
new file mode 100644
index 0000000000..8eef5dfc2e
--- /dev/null
+++ b/core/tests/Drupal/TestTools/PhpUnitCompatibility/PhpUnit10/DrupalStandardsSubscriber/Subscriber.php
@@ -0,0 +1,22 @@
+<?php declare(strict_types=1);
+
+namespace Drupal\TestTools\PhpUnitCompatibility\PhpUnit10\DrupalStandardsSubscriber;
+
+use Drupal\TestTools\PhpUnitCompatibility\PhpUnit10\DrupalStandards;
+
+/**
+ * @internal
+ */
+abstract class Subscriber {
+
+  private DrupalStandards $standards;
+
+  public function __construct(DrupalStandards $standards) {
+    $this->standards = $standards;
+  }
+
+  protected function standards(): DrupalStandards {
+    return $this->standards;
+  }
+
+}
diff --git a/core/tests/bootstrap.php b/core/tests/bootstrap.php
index 7266aabdb1..9f517dbc07 100644
--- a/core/tests/bootstrap.php
+++ b/core/tests/bootstrap.php
@@ -9,6 +9,7 @@
 
 use Drupal\Component\Assertion\Handle;
 use Drupal\TestTools\PhpUnitCompatibility\PhpUnit8\ClassWriter;
+use Drupal\TestTools\PhpUnitCompatibility\PhpUnit10\DrupalStandards;
 use Drupal\TestTools\PhpUnitCompatibility\PhpUnit10\Logging\HtmlOutputLogger;
 use Drupal\TestTools\PhpUnitCompatibility\RunnerVersion;
 use PHPUnit\Util\Filesystem;
@@ -183,8 +184,11 @@ class_alias('\Drupal\Tests\DocumentElement', '\Behat\Mink\Element\DocumentElemen
 // if they weren't on already.
 Handle::register();
 
-// Functional tests HTML output logging.
 if (RunnerVersion::getMajor() > 9) {
+  // Process Drupal standards checks on the tests.
+  DrupalStandards::init();
+
+  // Functional tests HTML output logging.
   $browserTestOutputDirectory = getenv('BROWSERTEST_OUTPUT_DIRECTORY');
   if ($browserTestOutputDirectory !== FALSE) {
     if (Filesystem::createDirectory($browserTestOutputDirectory)) {