| /* |
| * Copyright 2017 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "rtc_base/zero_memory.h" |
| |
| #include <stdint.h> |
| |
| #include "api/array_view.h" |
| #include "test/gtest.h" |
| |
| namespace rtc { |
| |
| TEST(ZeroMemoryTest, TestZeroMemory) { |
| static const size_t kBufferSize = 32; |
| uint8_t buffer[kBufferSize]; |
| for (size_t i = 0; i < kBufferSize; i++) { |
| buffer[i] = static_cast<uint8_t>(i + 1); |
| } |
| ExplicitZeroMemory(buffer, sizeof(buffer)); |
| for (size_t i = 0; i < kBufferSize; i++) { |
| EXPECT_EQ(buffer[i], 0); |
| } |
| } |
| |
| TEST(ZeroMemoryTest, TestZeroArrayView) { |
| static const size_t kBufferSize = 32; |
| uint8_t buffer[kBufferSize]; |
| for (size_t i = 0; i < kBufferSize; i++) { |
| buffer[i] = static_cast<uint8_t>(i + 1); |
| } |
| ExplicitZeroMemory(rtc::ArrayView<uint8_t>(buffer, sizeof(buffer))); |
| for (size_t i = 0; i < kBufferSize; i++) { |
| EXPECT_EQ(buffer[i], 0); |
| } |
| } |
| |
| // While this test doesn't actually test anything, it can be used to check |
| // the compiler output to make sure the call to "ExplicitZeroMemory" is not |
| // optimized away. |
| TEST(ZeroMemoryTest, TestZeroMemoryUnused) { |
| static const size_t kBufferSize = 32; |
| uint8_t buffer[kBufferSize]; |
| ExplicitZeroMemory(buffer, sizeof(buffer)); |
| } |
| |
| } // namespace rtc |