--- /dev/null
+<?php
+
+namespace Drupal\migration_provider_test\Plugin\migrate\source;
+
+use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+
+/**
+ * A test source plugin without a source_module.
+ *
+ * @MigrateSource(
+ * id = "no_source_module",
+ * )
+ */
+class NoSourceModule extends DrupalSqlBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function query() {}
+
+ /**
+ * {@inheritdoc}
+ */
+ public function fields() {}
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getIds() {}
+
+}