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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 <stddef.h>
- #include <iterator>
- #include "testing/gtest/include/gtest/gtest.h"
- namespace base {
- namespace win {
- namespace {
- constexpr wchar_t kTestString1[] = L"123";
- constexpr wchar_t kTestString2[] = L"456789";
- constexpr size_t test1_len = std::size(kTestString1) - 1;
- constexpr size_t test2_len = std::size(kTestString2) - 1;
- } // namespace
- TEST(ScopedBstrTest, Empty) {
- ScopedBstr b;
- EXPECT_EQ(nullptr, b.Get());
- EXPECT_EQ(0u, b.Length());
- EXPECT_EQ(0u, b.ByteLength());
- b.Reset(nullptr);
- EXPECT_EQ(nullptr, b.Get());
- EXPECT_EQ(nullptr, b.Release());
- ScopedBstr b2;
- b.Swap(b2);
- EXPECT_EQ(nullptr, b.Get());
- }
- TEST(ScopedBstrTest, Basic) {
- ScopedBstr b(kTestString1);
- EXPECT_EQ(test1_len, b.Length());
- EXPECT_EQ(test1_len * sizeof(kTestString1[0]), b.ByteLength());
- }
- namespace {
- void CreateTestString1(BSTR* ret) {
- *ret = SysAllocString(kTestString1);
- }
- } // namespace
- TEST(ScopedBstrTest, Swap) {
- ScopedBstr b1(kTestString1);
- ScopedBstr b2;
- b1.Swap(b2);
- EXPECT_EQ(test1_len, b2.Length());
- EXPECT_EQ(0u, b1.Length());
- EXPECT_STREQ(kTestString1, b2.Get());
- BSTR tmp = b2.Release();
- EXPECT_NE(nullptr, tmp);
- EXPECT_STREQ(kTestString1, tmp);
- EXPECT_EQ(nullptr, b2.Get());
- SysFreeString(tmp);
- }
- TEST(ScopedBstrTest, OutParam) {
- ScopedBstr b;
- CreateTestString1(b.Receive());
- EXPECT_STREQ(kTestString1, b.Get());
- }
- TEST(ScopedBstrTest, AllocateBytesAndSetByteLen) {
- constexpr size_t num_bytes = 100;
- ScopedBstr b;
- EXPECT_NE(nullptr, b.AllocateBytes(num_bytes));
- EXPECT_EQ(num_bytes, b.ByteLength());
- EXPECT_EQ(num_bytes / sizeof(kTestString1[0]), b.Length());
- lstrcpy(b.Get(), kTestString1);
- EXPECT_EQ(test1_len, static_cast<size_t>(lstrlen(b.Get())));
- EXPECT_EQ(num_bytes / sizeof(kTestString1[0]), b.Length());
- b.SetByteLen(lstrlen(b.Get()) * sizeof(kTestString2[0]));
- EXPECT_EQ(b.Length(), static_cast<size_t>(lstrlen(b.Get())));
- }
- TEST(ScopedBstrTest, AllocateAndSetByteLen) {
- ScopedBstr b;
- EXPECT_NE(nullptr, b.Allocate(kTestString2));
- EXPECT_EQ(test2_len, b.Length());
- b.SetByteLen((test2_len - 1) * sizeof(kTestString2[0]));
- EXPECT_EQ(test2_len - 1, b.Length());
- }
- } // namespace win
- } // namespace base
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