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