CNative::Clear の実装を改善

sakura_core/basis/CStrictInteger.h

@@ -31,6 +31,8 @@
 #ifndef SAKURA_CSTRICTINTEGER_6F202774_0F82_4BB7_B107_37DE5443309E_H_
 #define SAKURA_CSTRICTINTEGER_6F202774_0F82_4BB7_B107_37DE5443309E_H_
 
+#include "primitive.h" // for Int
+
 //int以外の整数型もintにキャストして扱う
 #define STRICTINT_OTHER_TYPE_AS_INT(TYPE) \
 	Me& operator += (TYPE rhs)			{ return operator += ((int)rhs); } \

sakura_core/mem/CNative.cpp

@@ -5,5 +5,5 @@
 //! 空っぽにする
 void CNative::Clear()
 {
-	this->SetRawData("",0);
+	this->_GetMemory()->_SetRawLength(0);
 }

tests/unittests/test-cnative.cpp

@@ -0,0 +1,54 @@
+/*! @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.
+*/
+#include <gtest/gtest.h>
+#include "mem/CNativeW.h"
+#include "mem/CNativeA.h"
+
+TEST(CNativeW, Clear)
+{
+	CNativeW stringW;
+	stringW.AppendString(L"abc");
+
+	/* Clear() 前にバッファサイズを取得する */
+	auto orgCapacity = stringW.capacity();
+
+	/* Clear() 前にデータサイズを取得する */
+	auto orgLength   = stringW.GetStringLength();
+	EXPECT_EQ(orgLength, 3);
+
+	stringW.Clear();
+
+	/* Clear() 後にバッファサイズを取得する */
+	auto newCapacity = stringW.capacity();
+
+	/* Clear() 後にデータサイズを取得する */
+	auto newLength   = stringW.GetStringLength();
+
+	/* Clear() 後にバッファサイズが変わっていないのを確認する */
+	EXPECT_EQ(orgCapacity, newCapacity);
+
+	/* Clear() 後にデータが空なのを確認する */
+	EXPECT_EQ(newLength, 0);
+}