copyright を追加

Author: m-tmatma

tests/unittests/test-sample-fixture.cpp

@@ -1,4 +1,32 @@
-#include <gtest/gtest.h>
+/*! @file */
+/*
+	Copyright (C) 2018-2019 Sakura Editor Organization
+
+	This software is provided 'as-is', without any express or implied
+	warranty. In no event will the authors be held liable for any damages
+	arising from the use of this software.
+
+	Permission is granted to anyone to use this software for any purpose,
+	including commercial applications, and to alter it and redistribute it
+	freely, subject to the following restrictions:
+
+		1. The origin of this software must not be misrepresented;
+		   you must not claim that you wrote the original software.
+		   If you use this software in a product, an acknowledgment
+		   in the product documentation would be appreciated but is
+		   not required.
+
+		2. Altered source versions must be plainly marked as such,
+		   and must not be misrepresented as being the original software.
+
+		3. This notice may not be removed or altered from any source
+		   distribution.
+*/
+
+/*!
+	`test fixture class` のサンプルコード
+*/
+#include <gtest/gtest.h>
 #include <cstdio>
 #include <exception>