diff --git a/tests/DummyPlugin.php b/tests/DummyPlugin.php
new file mode 100644
index 0000000..35e0749
--- /dev/null
+++ b/tests/DummyPlugin.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace fpoirotte\Cryptal\Tests;
+
+use fpoirotte\Cryptal\Implementers\PluginInterface;
+use fpoirotte\Cryptal\RegistryWrapper;
+
+class DummyPlugin implements PluginInterface
+{
+    public static function registerAlgorithms(RegistryWrapper $registry)
+    {
+        // Do nothing
+    }
+}