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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/win/scoped_bstr.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace win {
namespace {
static const wchar_t kTestString1[] = L"123";
static const wchar_t kTestString2[] = L"456789";
size_t test1_len = arraysize(kTestString1) - 1;
size_t test2_len = arraysize(kTestString2) - 1;
void DumbBstrTests() {
ScopedBstr b;
EXPECT_TRUE(b == NULL);
EXPECT_EQ(0, b.Length());
EXPECT_EQ(0, b.ByteLength());
b.Reset(NULL);
EXPECT_TRUE(b == NULL);
EXPECT_TRUE(b.Release() == NULL);
ScopedBstr b2;
b.Swap(b2);
EXPECT_TRUE(b2 == NULL);
}
void GiveMeABstr(BSTR* ret) {
*ret = SysAllocString(kTestString1);
}
void BasicBstrTests() {
ScopedBstr b1(kTestString1);
EXPECT_EQ(test1_len, b1.Length());
EXPECT_EQ(test1_len * sizeof(kTestString1[0]), b1.ByteLength());
ScopedBstr b2;
b1.Swap(b2);
EXPECT_EQ(test1_len, b2.Length());
EXPECT_EQ(0, b1.Length());
EXPECT_EQ(0, lstrcmp(b2, kTestString1));
BSTR tmp = b2.Release();
EXPECT_TRUE(tmp != NULL);
EXPECT_EQ(0, lstrcmp(tmp, kTestString1));
EXPECT_TRUE(b2 == NULL);
SysFreeString(tmp);
GiveMeABstr(b2.Receive());
EXPECT_TRUE(b2 != NULL);
b2.Reset();
EXPECT_TRUE(b2.AllocateBytes(100) != NULL);
EXPECT_EQ(100, b2.ByteLength());
EXPECT_EQ(100 / sizeof(kTestString1[0]), b2.Length());
lstrcpy(static_cast<BSTR>(b2), kTestString1);
EXPECT_EQ(test1_len, lstrlen(b2));
EXPECT_EQ(100 / sizeof(kTestString1[0]), b2.Length());
b2.SetByteLen(lstrlen(b2) * sizeof(kTestString2[0]));
EXPECT_EQ(b2.Length(), lstrlen(b2));
EXPECT_TRUE(b1.Allocate(kTestString2) != NULL);
EXPECT_EQ(test2_len, b1.Length());
b1.SetByteLen((test2_len - 1) * sizeof(kTestString2[0]));
EXPECT_EQ(test2_len - 1, b1.Length());
}
} // namespace
TEST(ScopedBstrTest, ScopedBstr) {
DumbBstrTests();
BasicBstrTests();
}
} // namespace win
} // namespace base
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