--- /dev/null
+<?php
+
+namespace Drupal\Tests\drupalmoduleupgrader\Unit\Plugin\DMU\Indexer;
+use Drupal\drupalmoduleupgrader\Plugin\DMU\Indexer\Classes;
+
+/**
+ * @group DMU.Indexer
+ * @covers \Drupal\drupalmoduleupgrader\Plugin\DMU\Indexer\Classes
+ *
+ * @expectID Foobaz
+ * @expectType \Pharborist\Objects\ClassNode
+ */
+class ClassesTest extends IndexerTestBase {
+
+ public function setUp() {
+ parent::setUp();
+
+ $code = <<<'END'
+<?php
+
+class Foobaz {}
+END;
+ $this->dir->getChild('foo.module')->setContent($code);
+
+ $this->indexer = new Classes([], 'class', [], $this->db, $this->target);
+ $this->indexer->build();
+ }
+
+}