Issue #3086373 by heddn, Mile23, Mixologic: Build test framework cleanup: bootstrap and tests

core/tests/Drupal/Tests/Core/Test/TestDiscoveryTest.php

@@ -529,6 +529,7 @@ public function providerTestGetPhpunitTestSuite() {
     $data['core-kerneltest'] = ['\Drupal\KernelTests\KernelTestBaseTest', 'Kernel'];
     $data['core-functionaltest'] = ['\Drupal\FunctionalTests\ExampleTest', 'Functional'];
     $data['core-functionaljavascripttest'] = ['\Drupal\FunctionalJavascriptTests\ExampleTest', 'FunctionalJavascript'];
+    $data['core-buildtest'] = ['\Drupal\BuildTests\Framework\Tests\BuildTestTest', 'Build'];
 
     return $data;
   }

core/tests/bootstrap.php

@@ -88,7 +88,7 @@ function drupal_phpunit_contrib_extension_directory_roots($root = NULL) {
  *   An associative array of extension directories, keyed by their namespace.
  */
 function drupal_phpunit_get_extension_namespaces($dirs) {
-  $suite_names = ['Unit', 'Kernel', 'Functional', 'FunctionalJavascript'];
+  $suite_names = ['Unit', 'Kernel', 'Functional', 'Build', 'FunctionalJavascript'];
   $namespaces = [];
   foreach ($dirs as $extension => $dir) {
     if (is_dir($dir . '/src')) {