Add license boilerplate.

Test: just comment change
Change-Id: Icecdf24dc5b5eb7e21e0cae802315a1157d61e32
diff --git a/apps/weaver/tests/weaver_test.cpp b/apps/weaver/tests/weaver_test.cpp
index 36cc5f7..a2700e1 100644
--- a/apps/weaver/tests/weaver_test.cpp
+++ b/apps/weaver/tests/weaver_test.cpp
@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * 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 <gtest/gtest.h>
 
 #include <include/ese/app/weaver.h>