add missing license header
diff --git a/tests/main.cpp b/tests/main.cpp
index c396518..b2f6c84 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2014 Canonical Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
#include <iostream>
#include <gtest/gtest.h>
#include <QtCore>
